7d782476 (main)
and
13a22686 (PR)
+72 -9
+72 -1
null
{
"creator": "0xbow",
"projectsForTvs": [
{
"projectId": "privacy-pools",
"sinceTimestamp": 1743265259
}
],
"proofSystemInfo": "",
"techStack": {
"zkVM": [
{
"id": "BN254",
"type": "curve",
"name": "BN254",
"description": "BN254, aka BN256, aka alt_bn128 pairing-friendly 254-bit prime field Weierstrass elliptic curve."
},
{
"id": "Snarkjs",
"type": "Groth16",
"name": "Snarkjs",
"description": "Circom / iden3 implementation of Groth16 proving system written in JS."
}
]
},
"trustedSetups": [
{
"proofSystem": {
"id": "Snarkjs",
"type": "Groth16",
"name": "Snarkjs",
"description": "Circom / iden3 implementation of Groth16 proving system written in JS."
},
"id": "PrivacyPools",
"name": "Privacy Pools",
"risk": "yellow",
"participantCount": 80,
"shortDescription": "Trusted setup for two Groth16 Privacy Pools circuits. It was built on top of 80 phase 1 contributions, with 513 phase 2 participants. Proving system could be broken if either phase 1 or 2 is compromised.",
"longDescription": "Trusted setup for two Groth16 Privacy Pools circuits: the Ragequit circuit and the private Withdrawal circuit.\n\nThis trusted setup ceremony builds on top of the 80th contribution to the [Perpetual Powers of Tau ceremony](https://github.com/privacy-ethereum/perpetualpowersoftau) as phase 1.\n\nPhase 2 of the ceremony was publicly announced, open to anonymous and identified participants, and concluded in March 2025. It contains 514 contributions to the Withdraw circuit and 513 participants to the Ragequit circuit.\nThe finalized zKeys were published for independent verification, and the ceremony code and UI were open-sourced.\n\n- Phase 1 ceremony: .\n- Ceremony completion announcement: [https://0xbow.io/blog/celebrating-the-conclusion-of-the-trusted-setup-ceremony](https://0xbow.io/blog/celebrating-the-conclusion-of-the-trusted-setup-ceremony)\n- Ceremony page with finalized zKeys: [https://ceremony.pse.dev/projects/Privacy%20Pools%20Ceremony](https://ceremony.pse.dev/projects/Privacy%20Pools%20Ceremony)\n- Initial ceremony announcement: [https://0xbow.io/blog/privacy-pools-trusted-setup-ceremony-join-us-in-strengthening-privacy](https://0xbow.io/blog/privacy-pools-trusted-setup-ceremony-join-us-in-strengthening-privacy)\n- Privacy Pools repository: [https://github.com/0xbow-io/privacy-pools-core](https://github.com/0xbow-io/privacy-pools-core)"
}
],
"verifierHashes": [
{
"hash": "Privacy Pools Withdrawal and Ragequit verifiers 03.07.2026",
"name": "Privacy Pools verifiers v1.2.1",
"sourceLink": "https://github.com/0xbow-io/privacy-pools-core/tree/v1.2.1/packages/circuits",
"proofSystem": {
"id": "Snarkjs",
"type": "Groth16",
"name": "Snarkjs",
"description": "Circom / iden3 implementation of Groth16 proving system written in JS."
},
"knownDeployments": [
{
"address": "eth:0xa45ACa8604a73D80C551fAad6355A5c3A5565eC6"
},
{
"address": "eth:0x022891F938Ae7fDC8Ab9Ead0FBf50aBA8C897D6d"
}
],
"verificationStatus": "successful",
"attesters": [
{
"id": "l2beat",
"name": "L2BEAT",
"link": "https://l2beat.com"
}
],
"verificationSteps": "Privacy Pools uses two Groth16 circuits — `commitment` (named `ragequit` in the trusted-setup ceremony) and `withdraw` — whose verification keys are hard-coded in the deployed `CommitmentVerifier.sol` and `WithdrawalVerifier.sol` smart contracts. This regeneration attests that these onchain verification keys correspond to the circuits published in the Privacy Pools repo.\n\nGenerally, to regenerate the two Privacy Pools verification keys, the following has to be done:\n\n1. Checkout the `v1.2.1` tag of the [Privacy Pools core repo](https://github.com/0xbow-io/privacy-pools-core/tree/v1.2.1) (commit hash `a80836a47451e662f127af17e11430ffa976c234`).\n2. Install the repo-pinned toolchain and compile the `.circom` circuit sources into `.r1cs` binaries.\n3. Download the phase 1 trusted setup file `ppot_0080_16.ptau` (Perpetual Powers of Tau contribution #80), which underlies the ceremony final keys.\n4. Verify the checked-in final prover keys (`.zkey`) against the compiled circuits and the phase 1 file. This step also implicitly checks the integrity of the phase 2 trusted setup.\n5. Export verification keys from the final prover keys and make sure they are identical to the checked-in `.vkey` files, whose values are hard-coded in the onchain verifier smart contracts.\n\nHelper scripts that implement the flow above and more detailed explanations could be found in this [script .zip archive](https://trusted-setup-hosting.l2beat.com/privacy/privacy-pools/verification_privacy_pools.zip). This .zip must be extracted in the `privacy-pools-core` dir checked out on tag `v1.2.1` (commit hash `a80836a47451e662f127af17e11430ffa976c234`) before the execution."
}
]
}+0 -8
{
"attributes": [
{
"id": "zk",
"label": "ZK",
"description": "Uses zero-knowledge proofs to prove private actions without revealing private data."
},
{
"id": "anyAmount",
"label": "Any amount",
"description": "Deposits and withdrawals can have any size."
}
],
"exitWindow": {
"value": "Infinite",
"sentiment": "good",
"orderHint": 9007199254740991,
"description": "Even if the Entrypoint or ASP turns malicious, users can always ragequit (withdraw tokens) from the immutable pool contracts, at the cost of losing privacy."
},
"privacy": {
"value": "None",
"sentiment": "good",
"description": "Compliance is enforced through centralized association set providers, which can refuse deposits into the pool, sending them back to the sender."
},
"reproducibility": {
"value": "Reproducible",
"sentiment": "good",
"description": "The contracts, circuits, and supporting software needed to participate in Privacy Pools are publicly available and can be run locally."
},
"riskSummary": "## Funds can be stolen if\n1. the zk proof system is broken, allowing invalid withdrawals.\n2. the [trusted setup](#trusted-setups) is compromised or all ceremony participants collude, allowing invalid withdrawals.\n3. the Entrypoint owner deploys a malicious [upgrade](#upgrades-and-governance) that steals new deposits.\n
\n## Funds can be lost if\n1. a user loses the secret and nullifier required to spend their deposit.\n
\n## Privacy can be lost if\n1. no relayer is available and the withdrawal must be submitted from an address that can be linked to the user.\n2. the ASP manager refuses to whitelist a deposit, forcing the user to either wait or exit publicly through ragequit.",
"tokens": [
{
"token": {
"address": "0x6440f144b7e50D6a8439336510312d2F54beB01D",
"iconUrl": "https://coin-images.coingecko.com/coins/images/56069/large/BOLD_logo.png?1748265087",
"symbol": "BOLD",
"decimals": 18,
"priceId": "liquity-bold-2",
"sinceTimestamp": 1770806867
},
"buckets": [
{
"id": "privacy-pools-BOLD",
"type": "pool",
"label": "BOLD pool",
"address": "eth:0xb4b5Fd38Fd4788071d7287e3cB52948e0d10b23E",
"sinceTimestamp": 1770806867,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
},
{
"token": {
"address": "0x6B175474E89094C44Da98b954EedeAC495271d0F",
"iconUrl": "https://assets.coingecko.com/coins/images/9956/large/Badge_Dai.png?1696509996",
"symbol": "DAI",
"decimals": 18,
"priceId": "dai",
"sinceTimestamp": 1752848471
},
"buckets": [
{
"id": "privacy-pools-DAI",
"type": "pool",
"label": "DAI pool",
"address": "eth:0x1c31C03B8CB2EE674D0F11De77135536db828257",
"sinceTimestamp": 1752848471,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
},
{
"token": {
"address": "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE",
"iconUrl": "https://assets.coingecko.com/coins/images/279/large/ethereum.png?1595348880",
"symbol": "ETH",
"decimals": 18,
"priceId": "ethereum",
"sinceTimestamp": 1743265259
},
"buckets": [
{
"id": "privacy-pools-ETH",
"type": "pool",
"label": "ETH pool",
"address": "eth:0xF241d57C6DebAe225c0F2e6eA1529373C9A9C9fB",
"sinceTimestamp": 1743265259,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
},
{
"token": {
"address": "0xCAcd6fd266aF91b8AeD52aCCc382b4e165586E29",
"iconUrl": "https://coin-images.coingecko.com/coins/images/53963/large/frxUSD.png?1737792154",
"symbol": "frxUSD",
"decimals": 18,
"priceId": "frax-usd",
"sinceTimestamp": 1754583623
},
"buckets": [
{
"id": "privacy-pools-frxUSD",
"type": "pool",
"label": "frxUSD pool",
"address": "eth:0xC6C769fac7AABEadd31a03fAe5Ca0Ec5B4C50f84",
"sinceTimestamp": 1754583623,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
},
{
"token": {
"address": "0x085780639CC2cACd35E474e71f4d000e2405d8f6",
"iconUrl": "https://coin-images.coingecko.com/coins/images/36202/large/fxUSD.jpg?1710833113",
"symbol": "fxUSD",
"decimals": 18,
"priceId": "f-x-protocol-fxusd",
"sinceTimestamp": 1765446455
},
"buckets": [
{
"id": "privacy-pools-fxUSD",
"type": "pool",
"label": "fxUSD pool",
"address": "eth:0xD14F4B36E1D1D98c218db782c49149876042BC56",
"sinceTimestamp": 1765446455,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
},
{
"token": {
"address": "0xa3931d71877C0E7a3148CB7Eb4463524FEc27fbD",
"iconUrl": "https://coin-images.coingecko.com/coins/images/52721/large/sUSDS_Coin.png?1734086971",
"symbol": "sUSDS",
"decimals": 18,
"priceId": "susds",
"sinceTimestamp": 1752782999
},
"buckets": [
{
"id": "privacy-pools-sUSDS",
"type": "pool",
"label": "sUSDS pool",
"address": "eth:0xBBdA2173CDFEA1c3bD7F2908798F1265301d750c",
"sinceTimestamp": 1752782999,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
},
{
"token": {
"address": "0x8d0D000Ee44948FC98c9B98A4FA4921476f08B0d",
"iconUrl": "https://coin-images.coingecko.com/coins/images/54977/large/USD1_1000x1000_transparent.png?1749297002",
"symbol": "USD1",
"decimals": 18,
"priceId": "usd1-wlfi",
"sinceTimestamp": 1754583179
},
"buckets": [
{
"id": "privacy-pools-USD1",
"type": "pool",
"label": "USD1 pool",
"address": "eth:0xc0A8Bc0F4F982b4d4f1fFae8F4FCCb58c9B29c98",
"sinceTimestamp": 1754583179,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
},
{
"token": {
"address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"iconUrl": "https://assets.coingecko.com/coins/images/6319/large/usdc.png?1696506694",
"symbol": "USDC",
"decimals": 6,
"priceId": "usd-coin",
"sinceTimestamp": 1753353035
},
"buckets": [
{
"id": "privacy-pools-USDC",
"type": "pool",
"label": "USDC pool",
"address": "eth:0xb419c2867aB3CBc78921660cB95150d95A94ce86",
"sinceTimestamp": 1753353035,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
},
{
"token": {
"address": "0x4c9EDD5852cd905f086C759E8383e09bff1E68B3",
"iconUrl": "https://assets.coingecko.com/coins/images/33613/large/3466ef_3c088c66c7d941e8856339d0bddf33cc_mv2.png?1702514458",
"symbol": "USDe",
"decimals": 18,
"priceId": "ethena-usde",
"sinceTimestamp": 1754583083
},
"buckets": [
{
"id": "privacy-pools-USDe",
"type": "pool",
"label": "USDe pool",
"address": "eth:0xe6D36B33b00A7C0cB0C2a8d39D07e7dB0c526Abc",
"sinceTimestamp": 1754583083,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
},
{
"token": {
"address": "0xdC035D45d973E3EC169d2276DDab16f1e407384F",
"iconUrl": "https://coin-images.coingecko.com/coins/images/39926/large/usds.webp?1726666683",
"symbol": "USDS",
"decimals": 18,
"priceId": "usds",
"sinceTimestamp": 1752503003
},
"buckets": [
{
"id": "privacy-pools-USDS",
"type": "pool",
"label": "USDS pool",
"address": "eth:0x05e4DBD71B56861eeD2Aaa12d00A797F04B5D3c0",
"sinceTimestamp": 1752503003,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
},
{
"token": {
"address": "0xdAC17F958D2ee523a2206206994597C13D831ec7",
"iconUrl": "https://assets.coingecko.com/coins/images/325/large/Tether.png?1696501661",
"symbol": "USDT",
"decimals": 6,
"priceId": "tether",
"sinceTimestamp": 1753352915
},
"buckets": [
{
"id": "privacy-pools-USDT",
"type": "pool",
"label": "USDT pool",
"address": "eth:0xe859C0bD25f260BaEE534Fb52e307D3b64D24572",
"sinceTimestamp": 1753352915,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
},
{
"token": {
"address": "0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599",
"iconUrl": "https://assets.coingecko.com/coins/images/7598/large/wrapped_bitcoin_wbtc.png?1696507857",
"symbol": "WBTC",
"decimals": 8,
"priceId": "wrapped-bitcoin",
"sinceTimestamp": 1753975703
},
"buckets": [
{
"id": "privacy-pools-WBTC",
"type": "pool",
"label": "WBTC pool",
"address": "eth:0xF973f4B180A568157Cd7A0E6006449139E6Bfc32",
"sinceTimestamp": 1753975703,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
},
{
"token": {
"address": "0xDcEe70654261AF21C44c093C300eD3Bb97b78192",
"iconUrl": "https://coin-images.coingecko.com/coins/images/29734/large/woeth-200x200.png?1714796686",
"symbol": "wOETH",
"decimals": 18,
"priceId": "wrapped-oeth",
"sinceTimestamp": 1756377743
},
"buckets": [
{
"id": "privacy-pools-wOETH",
"type": "pool",
"label": "wOETH pool",
"address": "eth:0x7d2959bCFb936a84531518e8391DdBa844e03ebE",
"sinceTimestamp": 1756377743,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
},
{
"token": {
"address": "0x7f39C581F595B53c5cb19bD0b3f8dA6c935E2Ca0",
"iconUrl": "https://assets.coingecko.com/coins/images/18834/large/wstETH.png?1696518295",
"symbol": "wstETH",
"decimals": 18,
"priceId": "wrapped-steth",
"sinceTimestamp": 1753975583
},
"buckets": [
{
"id": "privacy-pools-wstETH",
"type": "pool",
"label": "wstETH pool",
"address": "eth:0x1A604E9DFa0EFDC7FFda378AF16Cb81243b61633",
"sinceTimestamp": 1753975583,
"deposit": {
"event": "0xe3b53cd1a44fbf11535e145d80b8ef1ed6d57a73bf5daa7e939b6b01657d6549",
"extractor": "privacyPoolsValue",
"params": {}
},
"withdrawal": {
"event": "0x75e161b3e824b114fc1a33274bd7091918dd4e639cede50b78b15a4eea956a21",
"extractor": "privacyPoolsValue",
"params": {}
}
}
]
}
],
"trustedSetup": {
"id": "PrivacyPools",
"name": "Privacy Pools",
"risk": "yellow",
"participantCount": 55,
"shortDescription": "Trusted setup for two Groth16 Privacy Pools circuits. It was built on top of 55 phase 1 contributions, with 513 phase 2 participants. Proving system could be broken if either phase 1 or 2 is compromised.",
"longDescription": "Trusted setup for two Groth16 Privacy Pools circuits: the Ragequit circuit and the private Withdrawal circuit.\n\nThis trusted setup ceremony [builds on top of Polygon zkEVM ceremony](https://github.com/0xbow-io/privacy-pools-core/blob/a80836a47451e662f127af17e11430ffa976c234/packages/circuits/package.json#L19-L21) as phase 1, which contains 55 participants.\n\nPhase 2 of the ceremony was publicly announced, open to anonymous and identified participants, and concluded in March 2025. It contains 514 contributions to the Withdraw circuit and 513 participants to the Ragequit circuit.\nThe finalized zKeys were published for independent verification, and the ceremony code and UI were open-sourced.\n\n- Phase 1 ceremony: .\n- Ceremony completion announcement: [https://0xbow.io/blog/celebrating-the-conclusion-of-the-trusted-setup-ceremony](https://0xbow.io/blog/celebrating-the-conclusion-of-the-trusted-setup-ceremony)\n- Ceremony page with finalized zKeys: [https://ceremony.pse.dev/projects/Privacy%20Pools%20Ceremony](https://ceremony.pse.dev/projects/Privacy%20Pools%20Ceremony)\n- Initial ceremony announcement: [https://0xbow.io/blog/privacy-pools-trusted-setup-ceremony-join-us-in-strengthening-privacy](https://0xbow.io/blog/privacy-pools-trusted-setup-ceremony-join-us-in-strengthening-privacy)\n- Privacy Pools repository: [https://github.com/0xbow-io/privacy-pools-core](https://github.com/0xbow-io/privacy-pools-core)"
},
"upgradesAndGovernance": "The 2/4 Privacy Pools Multisig can instantly change the system’s critical configs, including the Entrypoint implementation and ASP root used for private withdrawals. The ASP postman (EOA) can also remove any deposit from the whitelist at any time, forcing a public rage-quit if the affected party wishes to withdraw. The guaranteed immutable escape hatch is pool-level ragequit (public withdrawal) to the original depositor address, because that logic lives in the immutable pool contracts and does not depend on the Entrypoint registry and config. This means the system is permissioned in its deposit logic and deposit privacy, but non-custodial for deposited assets. Past, successful (non-ragequit) withdrawals can not be deanonymized by the protocol."
}+69 -9
+69 -1
null
{
"creator": "Railgun",
"projectsForTvs": [
{
"projectId": "railgun",
"sinceTimestamp": 1651422389
}
],
"proofSystemInfo": "",
"techStack": {
"zkVM": [
{
"id": "BN254",
"type": "curve",
"name": "BN254",
"description": "BN254, aka BN256, aka alt_bn128 pairing-friendly 254-bit prime field Weierstrass elliptic curve."
},
{
"id": "Snarkjs",
"type": "Groth16",
"name": "Snarkjs",
"description": "Circom / iden3 implementation of Groth16 proving system written in JS."
}
]
},
"trustedSetups": [
{
"proofSystem": {
"id": "Snarkjs",
"type": "Groth16",
"name": "Snarkjs",
"description": "Circom / iden3 implementation of Groth16 proving system written in JS."
},
"id": "Railgun",
"name": "Railgun",
"risk": "yellow",
"participantCount": 55,
"shortDescription": "Circuit-specific trusted setup for 54 Groth16 Railgun circuits over BN254. It was built on top of 55 phase 1 contributions, with 304 phase 2 participants. Proving system could be broken if either phase 1 or 2 is compromised.",
"longDescription": "Circuit-specific Phase 2 trusted setup for Railgun's 54 Groth16 circuits (parameterised by\ntransaction input/output counts) over the BN254 curve. It [builds on the\nPolygon zkEVM ceremony](https://github.com/Railgun-Privacy/circuits-v2/blob/d0ec02dea0cbc8cd02a3b727b28de16e51f9a741/prepare_for_ceremony.sh#L13) as phase 1, which contains 55 participants.\n\nA separate Phase 2 ceremony was publicly announced,\nopen to anonymous and identified participants, and wrapped up in late December 2022.\n\nVerified against the ceremony artifact IPFS hash\n`QmWAySHYhaZqioKi1ufrPJC1n1ZVtHP2w4hLA9XqqJCFne`: the\n`/contributors` directory contains 328 sequentially-numbered attestation files with\nGitHub or Twitter handles, and the `/zkeys` directory contains 54 final zkey files (one\nper circuit). Parsing the final zkey binary for the 1x1 circuit shows 304 Phase 2\ncontributions on that circuit.\n\n- Phase 1 ceremony: .\n- Ceremony artifacts on IPFS: [https://ipfs.io/ipfs/QmWAySHYhaZqioKi1ufrPJC1n1ZVtHP2w4hLA9XqqJCFne](https://ipfs.io/ipfs/QmWAySHYhaZqioKi1ufrPJC1n1ZVtHP2w4hLA9XqqJCFne)\n- Ceremony announcement: [https://medium.com/@Railgun_Project/railgun-project-begins-setup-ceremony-with-an-emphasis-on-security-d1c63117c312](https://medium.com/@Railgun_Project/railgun-project-begins-setup-ceremony-with-an-emphasis-on-security-d1c63117c312)\n- Advanced Circuit ceremony user guide: [https://medium.com/@Railgun_Project/railgun-advanced-circuit-setup-ceremony-user-guide-32361c54242](https://medium.com/@Railgun_Project/railgun-advanced-circuit-setup-ceremony-user-guide-32361c54242)\n- Docs overview of the trusted setup: [https://docs.railgun.org/wiki/learn/privacy-system/trusted-setup-ceremony](https://docs.railgun.org/wiki/learn/privacy-system/trusted-setup-ceremony)\n- Railgun circuits repository with ceremony scripts: [https://github.com/Railgun-Privacy/circuits-v2](https://github.com/Railgun-Privacy/circuits-v2)"
}
],
"verifierHashes": [
{
"hash": "Railgun 91 circuit verifier 03.07.2026",
"name": "Railgun verifier",
"sourceLink": "https://github.com/Railgun-Privacy/circuits-v2/tree/0aa2d13763a9fcfbb7b7ea9c02e004e71f1394bb/src/library",
"proofSystem": {
"id": "Snarkjs",
"type": "Groth16",
"name": "Snarkjs",
"description": "Circom / iden3 implementation of Groth16 proving system written in JS."
},
"knownDeployments": [
{
"address": "eth:0xFA7093CDD9EE6932B4eb2c9e1cde7CE00B1FA4b9"
}
],
"verificationStatus": "successful",
"attesters": [
{
"id": "l2beat",
"name": "L2BEAT",
"link": "https://l2beat.com"
}
],
"verificationSteps": "Railgun smart contract acts as a verifier for ZK proofs for all 91 Railgun circuits. 91 different verification keys for these circuits are stored onchain in the verifier smart contract. This regeneration attests that the verification keys stored onchain correspond to circuits published in Railgun repo.\n\nGenerally, to regenrate all Railgun verification keys, the following has to be done:\n\n1. Checkout the `main` branch of the [Railgun circuits-v2 repo](https://github.com/Railgun-Privacy/circuits-v2) (commit hash `0aa2d13763a9fcfbb7b7ea9c02e004e71f1394bb`).\n2. Download Railgun trusted setup artifacts, which could be found at IPFS CID `QmUsmnK4PFc7zDp2cmC4wBZxYLjNyRg Wfs5GNcJJ2uLcpU` or [on L2BEAT trusted setup hosting](https://trusted-setup-hosting.l2beat.com/privacy/railgun/trusted_setup_railgun.zip). It contains the proving keys for all 91 circuits, which contain circuit information and Groth16 phase 2 trusted setup information.\n3. Build required version of circom and compile circuit sources into `.r1cs` binaries.\n4. Download the phase 1 trusted setup files and use it to verify that all published prover keys correspond to the compiled circuits. This step will implicitly check the integrity of phase 2 contributions.\n5. Generate all 91 verification keys from all prover keys, and make sure that it is identical to the ones in the onchain smart contract.\n\nHelper scripts that implement the flow above and more detailed explainations could be found in this [script .zip archive](https://trusted-setup-hosting.l2beat.com/privacy/railgun/verification_railgun.zip). This .zip must be extracted in `circuits-v2` dir checked out on commit `0aa2d13763a9fcfbb7b7ea9c02e004e71f1394bb` before the execution."
}
]
}+0 -8
{
"attributes": [
{
"id": "zk",
"label": "ZK",
"description": "Uses zero-knowledge proofs to prove private actions without revealing private data."
},
{
"id": "transfers",
"label": "Transfers",
"description": "Private transfers within the shielded pool."
},
{
"id": "defi",
"label": "DeFi",
"description": "Interop with DeFi (swaps, vaults) from within the shielded pool."
},
{
"id": "anyAmount",
"label": "Any amount",
"description": "Deposits and withdrawals can have any size."
}
],
"exitWindow": {
"value": "7d",
"sentiment": "warning",
"orderHint": 604800,
"description": "DAO-approved upgrades wait 7d before they can execute, giving users time to unshield funds if they do not approve the change."
},
"privacy": {
"value": "None",
"sentiment": "good",
"description": "Compliance is optional at the core protocol level: users can create proofs of innocence to disassociate deposits from flagged addresses, and relayers can choose to require them."
},
"reproducibility": {
"value": "Reproducible",
"sentiment": "good",
"description": "The contracts, circuits, and supporting software needed to participate in the protocol are publicly available and can be run locally."
},
"riskSummary": "## Funds can be stolen if\n1. the zk proof system is broken, allowing invalid spends or withdrawals.\n2. the [trusted setup](#trusted-setups) is compromised or all ceremony participants collude, allowing invalid spends or withdrawals.\n3. the DAO passes a malicious [upgrade](#upgrades-and-governance) and users do not react before the 7-day execution delay expires.\n
\n## Funds can be lost if\n1. a user loses the private keys required to control their private balance.\n
\n## Privacy can be lost if\n1. no broadcaster is available and transactions must be sent from a public address that can be linked to the user.",
"tokens": [
{
"token": {
"address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
"iconUrl": "https://assets.coingecko.com/coins/images/2518/large/weth.png?1696503332",
"symbol": "WETH",
"decimals": 18,
"priceId": "weth",
"sinceTimestamp": 1573689600
},
"buckets": [
{
"id": "railgun-WETH",
"type": "pool",
"label": "WETH",
"address": "eth:0xFA7093CDD9EE6932B4eb2c9e1cde7CE00B1FA4b9",
"sinceTimestamp": 1651422389,
"deposit": {
"event": "0x3a5b9dc26075a3801a6ddccf95fec485bb7500a91b44cec1add984c21ee6db3b",
"extractor": "railgunShield",
"params": {
"tokenAddress": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"
}
},
"withdrawal": {
"event": "0xd93cf895c7d5b2cd7dc7a098b678b3089f37d91f48d9b83a0800a91cbdf05284",
"extractor": "railgunUnshield",
"params": {
"tokenAddress": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"
}
}
}
]
},
{
"token": {
"address": "0xdAC17F958D2ee523a2206206994597C13D831ec7",
"iconUrl": "https://assets.coingecko.com/coins/images/325/large/Tether.png?1696501661",
"symbol": "USDT",
"decimals": 6,
"priceId": "tether",
"sinceTimestamp": 1573689600
},
"buckets": [
{
"id": "railgun-USDT",
"type": "pool",
"label": "USDT",
"address": "eth:0xFA7093CDD9EE6932B4eb2c9e1cde7CE00B1FA4b9",
"sinceTimestamp": 1651422389,
"deposit": {
"event": "0x3a5b9dc26075a3801a6ddccf95fec485bb7500a91b44cec1add984c21ee6db3b",
"extractor": "railgunShield",
"params": {
"tokenAddress": "0xdAC17F958D2ee523a2206206994597C13D831ec7"
}
},
"withdrawal": {
"event": "0xd93cf895c7d5b2cd7dc7a098b678b3089f37d91f48d9b83a0800a91cbdf05284",
"extractor": "railgunUnshield",
"params": {
"tokenAddress": "0xdAC17F958D2ee523a2206206994597C13D831ec7"
}
}
}
]
},
{
"token": {
"address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"iconUrl": "https://assets.coingecko.com/coins/images/6319/large/usdc.png?1696506694",
"symbol": "USDC",
"decimals": 6,
"priceId": "usd-coin",
"sinceTimestamp": 1573689600
},
"buckets": [
{
"id": "railgun-USDC",
"type": "pool",
"label": "USDC",
"address": "eth:0xFA7093CDD9EE6932B4eb2c9e1cde7CE00B1FA4b9",
"sinceTimestamp": 1651422389,
"deposit": {
"event": "0x3a5b9dc26075a3801a6ddccf95fec485bb7500a91b44cec1add984c21ee6db3b",
"extractor": "railgunShield",
"params": {
"tokenAddress": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
}
},
"withdrawal": {
"event": "0xd93cf895c7d5b2cd7dc7a098b678b3089f37d91f48d9b83a0800a91cbdf05284",
"extractor": "railgunUnshield",
"params": {
"tokenAddress": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
}
}
}
]
},
{
"token": {
"address": "0x6B175474E89094C44Da98b954EedeAC495271d0F",
"iconUrl": "https://assets.coingecko.com/coins/images/9956/large/Badge_Dai.png?1696509996",
"symbol": "DAI",
"decimals": 18,
"priceId": "dai",
"sinceTimestamp": 1574121600
},
"buckets": [
{
"id": "railgun-DAI",
"type": "pool",
"label": "DAI",
"address": "eth:0xFA7093CDD9EE6932B4eb2c9e1cde7CE00B1FA4b9",
"sinceTimestamp": 1651422389,
"deposit": {
"event": "0x3a5b9dc26075a3801a6ddccf95fec485bb7500a91b44cec1add984c21ee6db3b",
"extractor": "railgunShield",
"params": {
"tokenAddress": "0x6B175474E89094C44Da98b954EedeAC495271d0F"
}
},
"withdrawal": {
"event": "0xd93cf895c7d5b2cd7dc7a098b678b3089f37d91f48d9b83a0800a91cbdf05284",
"extractor": "railgunUnshield",
"params": {
"tokenAddress": "0x6B175474E89094C44Da98b954EedeAC495271d0F"
}
}
}
]
},
{
"token": {
"address": "0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599",
"iconUrl": "https://assets.coingecko.com/coins/images/7598/large/wrapped_bitcoin_wbtc.png?1696507857",
"symbol": "WBTC",
"decimals": 8,
"priceId": "wrapped-bitcoin",
"sinceTimestamp": 1573689600
},
"buckets": [
{
"id": "railgun-WBTC",
"type": "pool",
"label": "WBTC",
"address": "eth:0xFA7093CDD9EE6932B4eb2c9e1cde7CE00B1FA4b9",
"sinceTimestamp": 1651422389,
"deposit": {
"event": "0x3a5b9dc26075a3801a6ddccf95fec485bb7500a91b44cec1add984c21ee6db3b",
"extractor": "railgunShield",
"params": {
"tokenAddress": "0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599"
}
},
"withdrawal": {
"event": "0xd93cf895c7d5b2cd7dc7a098b678b3089f37d91f48d9b83a0800a91cbdf05284",
"extractor": "railgunUnshield",
"params": {
"tokenAddress": "0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599"
}
}
}
]
},
{
"token": {
"address": "0x85F17Cf997934a597031b2E18a9aB6ebD4B9f6a4",
"iconUrl": "https://coin-images.coingecko.com/coins/images/71681/large/near.png?1768905174",
"symbol": "NEAR",
"decimals": 24,
"priceId": "rainbow-bridged-near-ethereum",
"sinceTimestamp": 1768867200
},
"buckets": [
{
"id": "railgun-NEAR",
"type": "pool",
"label": "NEAR",
"address": "eth:0xFA7093CDD9EE6932B4eb2c9e1cde7CE00B1FA4b9",
"sinceTimestamp": 1768867200,
"deposit": {
"event": "0x3a5b9dc26075a3801a6ddccf95fec485bb7500a91b44cec1add984c21ee6db3b",
"extractor": "railgunShield",
"params": {
"tokenAddress": "0x85F17Cf997934a597031b2E18a9aB6ebD4B9f6a4"
}
},
"withdrawal": {
"event": "0xd93cf895c7d5b2cd7dc7a098b678b3089f37d91f48d9b83a0800a91cbdf05284",
"extractor": "railgunUnshield",
"params": {
"tokenAddress": "0x85F17Cf997934a597031b2E18a9aB6ebD4B9f6a4"
}
}
}
]
},
{
"token": {
"address": "0x6f40d4A6237C257fff2dB00FA0510DeEECd303eb",
"iconUrl": "https://coin-images.coingecko.com/coins/images/14688/large/Logo_1_%28brighter%29.png?1734430693",
"symbol": "FLUID",
"decimals": 18,
"priceId": "instadapp",
"sinceTimestamp": 1623801600
},
"buckets": [
{
"id": "railgun-FLUID",
"type": "pool",
"label": "FLUID",
"address": "eth:0xFA7093CDD9EE6932B4eb2c9e1cde7CE00B1FA4b9",
"sinceTimestamp": 1651422389,
"deposit": {
"event": "0x3a5b9dc26075a3801a6ddccf95fec485bb7500a91b44cec1add984c21ee6db3b",
"extractor": "railgunShield",
"params": {
"tokenAddress": "0x6f40d4A6237C257fff2dB00FA0510DeEECd303eb"
}
},
"withdrawal": {
"event": "0xd93cf895c7d5b2cd7dc7a098b678b3089f37d91f48d9b83a0800a91cbdf05284",
"extractor": "railgunUnshield",
"params": {
"tokenAddress": "0x6f40d4A6237C257fff2dB00FA0510DeEECd303eb"
}
}
}
]
},
{
"token": {
"address": "0xe76C6c83af64e4C60245D8C7dE953DF673a7A33D",
"iconUrl": "https://coin-images.coingecko.com/coins/images/16840/large/railgun.jpeg?1696516407",
"symbol": "RAIL",
"decimals": 18,
"priceId": "railgun",
"sinceTimestamp": 1625270400
},
"buckets": [
{
"id": "railgun-RAIL",
"type": "pool",
"label": "RAIL",
"address": "eth:0xFA7093CDD9EE6932B4eb2c9e1cde7CE00B1FA4b9",
"sinceTimestamp": 1651422389,
"deposit": {
"event": "0x3a5b9dc26075a3801a6ddccf95fec485bb7500a91b44cec1add984c21ee6db3b",
"extractor": "railgunShield",
"params": {
"tokenAddress": "0xe76C6c83af64e4C60245D8C7dE953DF673a7A33D"
}
},
"withdrawal": {
"event": "0xd93cf895c7d5b2cd7dc7a098b678b3089f37d91f48d9b83a0800a91cbdf05284",
"extractor": "railgunUnshield",
"params": {
"tokenAddress": "0xe76C6c83af64e4C60245D8C7dE953DF673a7A33D"
}
}
}
]
}
],
"trustedSetup": {
"id": "Railgun",
"name": "Railgun",
"risk": "yellow",
"participantCount": 55,
"shortDescription": "Circuit-specific trusted setup for 54 Groth16 Railgun circuits over BN254. It was built on top of 55 phase 1 contributions, with 304 phase 2 participants. Proving system could be broken if either phase 1 or 2 is compromised.",
"longDescription": "Circuit-specific Phase 2 trusted setup for Railgun's 54 Groth16 circuits (parameterised by\ntransaction input/output counts) over the BN254 curve. It [builds on the\nPolygon zkEVM ceremony](https://github.com/Railgun-Privacy/circuits-v2/blob/d0ec02dea0cbc8cd02a3b727b28de16e51f9a741/prepare_for_ceremony.sh#L13) as phase 1, which contains 55 participants.\n\nA separate Phase 2 ceremony was publicly announced,\nopen to anonymous and identified participants, and wrapped up in late December 2022.\n\nVerified against the ceremony artifact IPFS hash\n`QmWAySHYhaZqioKi1ufrPJC1n1ZVtHP2w4hLA9XqqJCFne`: the\n`/contributors` directory contains 328 sequentially-numbered attestation files with\nGitHub or Twitter handles, and the `/zkeys` directory contains 54 final zkey files (one\nper circuit). Parsing the final zkey binary for the 1x1 circuit shows 304 Phase 2\ncontributions on that circuit.\n\n- Phase 1 ceremony: .\n- Ceremony artifacts on IPFS: [https://ipfs.io/ipfs/QmWAySHYhaZqioKi1ufrPJC1n1ZVtHP2w4hLA9XqqJCFne](https://ipfs.io/ipfs/QmWAySHYhaZqioKi1ufrPJC1n1ZVtHP2w4hLA9XqqJCFne)\n- Ceremony announcement: [https://medium.com/@Railgun_Project/railgun-project-begins-setup-ceremony-with-an-emphasis-on-security-d1c63117c312](https://medium.com/@Railgun_Project/railgun-project-begins-setup-ceremony-with-an-emphasis-on-security-d1c63117c312)\n- Advanced Circuit ceremony user guide: [https://medium.com/@Railgun_Project/railgun-advanced-circuit-setup-ceremony-user-guide-32361c54242](https://medium.com/@Railgun_Project/railgun-advanced-circuit-setup-ceremony-user-guide-32361c54242)\n- Docs overview of the trusted setup: [https://docs.railgun.org/wiki/learn/privacy-system/trusted-setup-ceremony](https://docs.railgun.org/wiki/learn/privacy-system/trusted-setup-ceremony)\n- Railgun circuits repository with ceremony scripts: [https://github.com/Railgun-Privacy/circuits-v2](https://github.com/Railgun-Privacy/circuits-v2)"
},
"upgradesAndGovernance": "Railgun features an omnipotent DAO governed by the stakers of the RAIL token. The DAO has the authority to change ZK circuit logic on the core Railgun contract, which can arbitrarily change the rules for shielded tokens; as well as manage blacklisted tokens, mint RAIL tokens and manage governance rewards. See docs here: \n\n## Governance flow\n\n1. Users stake RAIL token in the Staking contract ([0xEE6A649Aa3766bD117e12C161726b693A1B2Ee20](https://etherscan.io/address/0xEE6A649Aa3766bD117e12C161726b693A1B2Ee20)). Voting power is proportional to the staked amount and can be delegated to another address. Unstaking has 1mo delay.\n2. Anyone can create a new proposal with an IPFS link and onchain calldata on the Voting contract ([0xc480F68A3dcC3EdD82134FAB45C14A0FcF1dA3CC](https://etherscan.io/address/0xc480F68A3dcC3EdD82134FAB45C14A0FcF1dA3CC)). It enters a Sponsorship stage of 1mo, where it has to be supported by 500 K RAIL stake.\n3. After a 2d delay, the actual voting starts. \"Yay\" votes need to be cast within 5d, \"Nay\" have 6d. Proposal needs to reach the quorum of 2.00 M RAIL.\n4. A passed proposal (simple majority) waits for 7d before execution and then must be executed within 14d by anyone. Execution goes via the Delegator smart contract ([0xB6d513f6222Ee92Fff975E901bd792E2513fB53B](https://etherscan.io/address/0xB6d513f6222Ee92Fff975E901bd792E2513fB53B)), which actually has permissions to modify the Railgun protocol values."
}+0 -7
+0 -7
{
"attributes": [
{
"id": "zk",
"label": "ZK",
"description": "Uses zero-knowledge proofs to prove private actions without revealing private data."
},
{
"id": "transfers",
"label": "Transfers",
"description": "Private transfers within the shielded pool."
},
{
"id": "defi",
"label": "DeFi",
"description": "Interop with DeFi (swaps, vaults) from within the shielded pool."
},
{
"id": "anyAmount",
"label": "Any amount",
"description": "Deposits and withdrawals can have any size."
}
],
"exitWindow": {
"value": "None",
"sentiment": "bad",
"orderHint": 0,
"description": "The pool implementation is immediately upgradeable, so users have no delay to withdraw before a malicious upgrade can take effect."
},
"privacy": {
"value": "Use undetectable",
"sentiment": "bad",
"description": "All private actions include auditor-encrypted metadata, so whoever controls the auditor private key can decrypt user activity retroactively. Users can not know whether their privacy was violated. Compliance is facilitated by this mandatory auditor-encrypted metadata."
},
"reproducibility": {
"value": "Not published",
"sentiment": "bad",
"description": "The STRK-20 protocol program and the sources for proving stack are not published. Users cannot independently verify the correctness of STRK-20 ZK program. They also cannot generate required ZK proofs locally and are forced to reveal private data to third party - the prover."
},
"riskSummary": "## Funds can be stolen if\n1. the proof system or virtual Starknet execution model is broken or backdoored, allowing invalid server actions to be applied.\n2. the escrow smart contract is maliciously upgraded (no delay).\n3. an external DeFi helper or target protocol invoked by the user mishandles assets.\n
\n## Funds can be lost if\n1. a user loses the Starknet account key or private viewing key required to spend their notes.\n2. the pool is paused or upgraded in a way that prevents users from applying valid actions.\n
\n## Privacy can be lost if\n1. the auditor private key holder decrypts registered users' viewing keys or withdrawal and metadata.\n2. the currently private SDK or prover leaks user secrets or metadata.\n3. deposits, withdrawals, open-note fills, timing, unique amounts, or DeFi helper calldata make a user's activity linkable.",
"tokens": [],
"trustedSetup": {
"id": "TransparentSetup",
"name": "Transparent setup",
"risk": "N/A",
"shortDescription": "No trusted setup and no additional setup-related trust assumptions.",
"longDescription": "Transparent proving systems require no trusted setups and have no additional setup-related trust assumptions."
},
"upgradesAndGovernance": "The pool uses StarkWare-style role components and an instantly upgradeable smart contract implementation.\n\n- `APP_GOVERNOR` can set the fee amount, fee collector, and proof validity window.\n- `GOVERNANCE_ADMIN` can grant governance and upgrade-governor roles.\n- `SECURITY_ADMIN` can grant pause, unpause, and auditor-key administration roles.\n- `SECURITY_AGENT` can pause the pool, if granted.\n- `SECURITY_GOVERNOR` can unpause the pool and change the auditor public key, if granted.\n- `UPGRADE_GOVERNOR` can approve and execute upgrades, if granted.\n- `UPGRADE_AGENT` can execute approved upgrades, if granted.\n\nThe live role holders observed were:\n\n- `APP_GOVERNOR`: `0x2796da10aba2e1f445c38eba07e5a4393d6dab30d203d3432deb824e891619a` (2/4 Multisig)\n- `GOVERNANCE_ADMIN`: `0x3103066e6c7037ba947ea9a7b5b8d110ae7f3d631fa5849435d0dc1fc5ef785` (EOA)\n- `GOVERNANCE_ADMIN` and `SECURITY_ADMIN`: `0x663cc699d9c51b7d4d434e06f5982692167546ce525d9155edb476ac9a117d6` (7/12 Multisig)"
}+69 -9
+69 -1
null
{
"creator": "Tornado Cash",
"projectsForTvs": [
{
"projectId": "tornado-cash",
"sinceTimestamp": 1576523323
}
],
"proofSystemInfo": "",
"techStack": {
"zkVM": [
{
"id": "BN254",
"type": "curve",
"name": "BN254",
"description": "BN254, aka BN256, aka alt_bn128 pairing-friendly 254-bit prime field Weierstrass elliptic curve."
},
{
"id": "websnark",
"type": "Groth16",
"name": "websnark",
"description": "Fast browser-native ZK SNARK prover written in WASM by Tornado Cash team."
}
]
},
"trustedSetups": [
{
"proofSystem": {
"id": "websnark",
"type": "Groth16",
"name": "websnark",
"description": "Fast browser-native ZK SNARK prover written in WASM by Tornado Cash team."
},
"id": "TornadoCash",
"name": "Tornado Cash",
"risk": "yellow",
"participantCount": 30,
"shortDescription": "Circuit-specific trusted setup for Groth16 Tornado Cash circuits. It was built on top of 30 phase 1 contributions, and reached 1114 phase 2 participants. Proving system could be broken if either phase 1 or 2 is compromised.",
"longDescription": "Circuit-specific trusted setup for Groth16 Tornado Cash circuits. It was publicly announced as a Phase 2 ceremony\nbuilt on top of the [30th contribution to the Perpetual Powers of Tau ceremony](https://tornado-cash.medium.com/tornado-cash-trusted-setup-ceremony-b846e1e00be1), and completed in May 2020. It\ncollected 1114 contributions over 10 days, with 450 identified contributors and 664 anonymous ones. Tornado Cash\npublished the participant list, archive of contributions and artifacts, and the generated verifier contract.\n\n- Phase 1 ceremony (first 30 contributions are used): .\n- Ceremony completion announcement: [https://tornado-cash.medium.com/the-biggest-trusted-setup-ceremony-in-the-world-3c6ab9c8fffa](https://tornado-cash.medium.com/the-biggest-trusted-setup-ceremony-in-the-world-3c6ab9c8fffa)\n- Ceremony page with participant list and archive download: [https://ceremony.tornado.cash/](https://ceremony.tornado.cash/)\n- Initial ceremony announcement: [https://tornado-cash.medium.com/tornado-cash-trusted-setup-ceremony-b846e1e00be1](https://tornado-cash.medium.com/tornado-cash-trusted-setup-ceremony-b846e1e00be1)\n- Ceremony code repository: [https://github.com/tornadocash/phase2-bn254](https://github.com/tornadocash/phase2-bn254)"
}
],
"verifierHashes": [
{
"hash": "Tornado Cash verifier 03.07.2026",
"name": "Tornado Cash verifier v2.1",
"sourceLink": "https://github.com/tornadocash/tornado-core/tree/v2.1/circuits",
"proofSystem": {
"id": "websnark",
"type": "Groth16",
"name": "websnark",
"description": "Fast browser-native ZK SNARK prover written in WASM by Tornado Cash team."
},
"knownDeployments": [
{
"address": "eth:0xce172ce1F20EC0B3728c9965470eaf994A03557A"
}
],
"verificationStatus": "successful",
"attesters": [
{
"id": "l2beat",
"name": "L2BEAT",
"link": "https://l2beat.com"
}
],
"verificationSteps": "This regeneration attests that the verifier smart contract verification keys correspond to circuits published in Tornado Cash release.\n\nGenerally, to regenerate Tornado Cash verifier, the following has to be done:\n\n1. Checkout the correct branch of the sources: `https://github.com/tornadocash/tornado-core/tree/v2.1`.\n2. Compile the `.circom` circuit sources into `.json`.\n3. Fetch published prover keys for `tornado.params`. This file contains the circuit information and Groth16 phase 2 trusted setup information (final evaluation keys for all 1114 contributions). It does not contain phase 1 trusted setup data that must be fetched separately.\n4. Check that `tornado.params` was generated with the same compiled circuit as was obtained in step 2. This step will implicitly check the integrity of phase 2 trusted setup, and it will rely on the phase 1 trusted setup files downloaded in the previous step.\n5. Generate verification keys from the prover key and make sure that it is identical to the one in the solidity smart contract.\n\nelper scripts that implement the flow above and more detailed explainations could be found in this [script .zip archive](https://trusted-setup-hosting.l2beat.com/privacy/tornado-cash/verification_tornado_cash.zip). This .zip must be extracted in `tornado-core` dir checked out on tag `v2.1` (commit hash `a533ad9ffb62163a42d4fa9a09984c5dd4e5c41d`) before the execution."
}
]
}+0 -8
{
"attributes": [
{
"id": "zk",
"label": "ZK",
"description": "Uses zero-knowledge proofs to prove private actions without revealing private data."
},
{
"id": "fixedAmounts",
"label": "Fixed amounts",
"description": "Pre-defined transfer amounts use distinct buckets (anonymity sets)."
}
],
"exitWindow": {
"value": "Infinite",
"sentiment": "good",
"orderHint": 9007199254740991,
"description": "The core Tornado Cash contracts are immutable and have no admin upgrade path, so users can always withdraw with a valid note and proof."
},
"privacy": {
"value": "None",
"sentiment": "good",
"description": "There is no protocol-level compliance mechanism or way to compromise user privacy."
},
"reproducibility": {
"value": "Reproducible",
"sentiment": "good",
"description": "There is at least one practical way to participate in Tornado Cash using published source code that can be audited and run locally."
},
"riskSummary": "## Funds can be stolen if\n1. the zk proof system is broken, allowing invalid withdrawals.\n2. the [trusted setup](#trusted-setups) is compromised or all ceremony participants collude, allowing invalid withdrawals.\n
\n## Funds can be lost if\n1. a user loses the note secrets required to withdraw. \n
\n## Privacy can be lost if\n1. no relayer is available and the withdrawal must be submitted from an address that can be linked to the user (see [best practice page](/publications/privacy-best-practices) for more info).",
"tokens": [
{
"token": {
"address": "0x5d3a536E4D6DbD6114cc1Ead35777bAB948E3643",
"iconUrl": "https://assets.coingecko.com/coins/images/9281/large/cDAI.png?1696509390",
"symbol": "cDAI",
"decimals": 8,
"priceId": "cdai",
"sinceTimestamp": 1577297782
},
"buckets": [
{
"id": "tornado-cDAI-5000",
"type": "denomination",
"label": "cDAI 5000",
"address": "eth:0x22aaA7720ddd5388A3c0A3333430953C68f1849b",
"sinceTimestamp": 1577297782,
"denomination": "5000",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "500000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "500000000000"
}
}
},
{
"id": "tornado-cDAI-50000",
"type": "denomination",
"label": "cDAI 50000",
"address": "eth:0x03893a7c7463AE47D46bc7f091665f1893656003",
"sinceTimestamp": 1616155055,
"denomination": "50000",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "5000000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "5000000000000"
}
}
},
{
"id": "tornado-cDAI-500000",
"type": "denomination",
"label": "cDAI 500000",
"address": "eth:0x2717c5e28cf931547B621a5dddb772Ab6A35B701",
"sinceTimestamp": 1616135923,
"denomination": "500000",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "50000000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "50000000000000"
}
}
},
{
"id": "tornado-cDAI-5000000",
"type": "denomination",
"label": "cDAI 5000000",
"address": "eth:0xD21be7248e0197Ee08E0c20D4a96DEBdaC3D20Af",
"sinceTimestamp": 1616115450,
"denomination": "5000000",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "500000000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "500000000000000"
}
}
}
]
},
{
"token": {
"address": "0x6B175474E89094C44Da98b954EedeAC495271d0F",
"iconUrl": "https://assets.coingecko.com/coins/images/9956/large/Badge_Dai.png?1696509996",
"symbol": "DAI",
"decimals": 18,
"priceId": "dai",
"sinceTimestamp": 1576534688
},
"buckets": [
{
"id": "tornado-DAI-100",
"type": "denomination",
"label": "DAI 100",
"address": "eth:0xD4B88Df4D29F5CedD6857912842cff3b20C8Cfa3",
"sinceTimestamp": 1576534688,
"denomination": "100",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "100000000000000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "100000000000000000000"
}
}
},
{
"id": "tornado-DAI-1000",
"type": "denomination",
"label": "DAI 1000",
"address": "eth:0xFD8610d20aA15b7B2E3Be39B396a1bC3516c7144",
"sinceTimestamp": 1577297383,
"denomination": "1000",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "1000000000000000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "1000000000000000000000"
}
}
},
{
"id": "tornado-DAI-10000",
"type": "denomination",
"label": "DAI 10000",
"address": "eth:0x07687e702b410Fa43f4cB4Af7FA097918ffD2730",
"sinceTimestamp": 1616114822,
"denomination": "10000",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "10000000000000000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "10000000000000000000000"
}
}
},
{
"id": "tornado-DAI-100000",
"type": "denomination",
"label": "DAI 100000",
"address": "eth:0x23773E65ed146A459791799d01336DB287f25334",
"sinceTimestamp": 1616115387,
"denomination": "100000",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "100000000000000000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "100000000000000000000000"
}
}
}
]
},
{
"token": {
"address": "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE",
"iconUrl": "https://assets.coingecko.com/coins/images/279/large/ethereum.png?1595348880",
"symbol": "ETH",
"decimals": 18,
"priceId": "ethereum",
"sinceTimestamp": 1576523323
},
"buckets": [
{
"id": "tornado-ETH-0.1",
"type": "denomination",
"label": "ETH 0.1",
"address": "eth:0x12D66f87A04A9E220743712cE6d9bB1B5616B8Fc",
"sinceTimestamp": 1576523323,
"denomination": "0.1",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "100000000000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "100000000000000000"
}
}
},
{
"id": "tornado-ETH-1",
"type": "denomination",
"label": "ETH 1",
"address": "eth:0x47CE0C6eD5B0Ce3d3A51fdb1C52DC66a7c3c2936",
"sinceTimestamp": 1576534673,
"denomination": "1",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "1000000000000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "1000000000000000000"
}
}
},
{
"id": "tornado-ETH-10",
"type": "denomination",
"label": "ETH 10",
"address": "eth:0x910Cbd523D972eb0a6f4cAe4618aD62622b39DbF",
"sinceTimestamp": 1576536415,
"denomination": "10",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "10000000000000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "10000000000000000000"
}
}
},
{
"id": "tornado-ETH-100",
"type": "denomination",
"label": "ETH 100",
"address": "eth:0xA160cdAB225685dA1d56aa342Ad8841c3b53f291",
"sinceTimestamp": 1577296976,
"denomination": "100",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "100000000000000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "100000000000000000000"
}
}
}
]
},
{
"token": {
"address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"iconUrl": "https://assets.coingecko.com/coins/images/6319/large/usdc.png?1696506694",
"symbol": "USDC",
"decimals": 6,
"priceId": "usd-coin",
"sinceTimestamp": 1577298068
},
"buckets": [
{
"id": "tornado-USDC-100",
"type": "denomination",
"label": "USDC 100",
"address": "eth:0xd96f2B1c14Db8458374d9Aca76E26c3D18364307",
"sinceTimestamp": 1577298068,
"denomination": "100",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "100000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "100000000"
}
}
},
{
"id": "tornado-USDC-1000",
"type": "denomination",
"label": "USDC 1000",
"address": "eth:0x4736dCf1b7A3d580672CcE6E7c65cd5cc9cFBa9D",
"sinceTimestamp": 1577298155,
"denomination": "1000",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "1000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "1000000000"
}
}
}
]
},
{
"token": {
"address": "0xdAC17F958D2ee523a2206206994597C13D831ec7",
"iconUrl": "https://assets.coingecko.com/coins/images/325/large/Tether.png?1696501661",
"symbol": "USDT",
"decimals": 6,
"priceId": "tether",
"sinceTimestamp": 1577298900
},
"buckets": [
{
"id": "tornado-USDT-100",
"type": "denomination",
"label": "USDT 100",
"address": "eth:0x169AD27A470D064DEDE56a2D3ff727986b15D52B",
"sinceTimestamp": 1577298900,
"denomination": "100",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "100000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "100000000"
}
}
},
{
"id": "tornado-USDT-1000",
"type": "denomination",
"label": "USDT 1000",
"address": "eth:0x0836222F2B2B24A3F36f98668Ed8F0B38D1a872f",
"sinceTimestamp": 1577298985,
"denomination": "1000",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "1000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "1000000000"
}
}
}
]
},
{
"token": {
"address": "0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599",
"iconUrl": "https://assets.coingecko.com/coins/images/7598/large/wrapped_bitcoin_wbtc.png?1696507857",
"symbol": "WBTC",
"decimals": 8,
"priceId": "wrapped-bitcoin",
"sinceTimestamp": 1616123193
},
"buckets": [
{
"id": "tornado-WBTC-0.1",
"type": "denomination",
"label": "WBTC 0.1",
"address": "eth:0x178169B423a011fff22B9e3F3abeA13414dDD0F1",
"sinceTimestamp": 1616134868,
"denomination": "0.1",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "10000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "10000000"
}
}
},
{
"id": "tornado-WBTC-1",
"type": "denomination",
"label": "WBTC 1",
"address": "eth:0x610B717796ad172B316836AC95a2ffad065CeaB4",
"sinceTimestamp": 1616123193,
"denomination": "1",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "100000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "100000000"
}
}
},
{
"id": "tornado-WBTC-10",
"type": "denomination",
"label": "WBTC 10",
"address": "eth:0xbB93e510BbCD0B7beb5A853875f9eC60275CF498",
"sinceTimestamp": 1616135758,
"denomination": "10",
"deposit": {
"event": "0xa945e51eec50ab98c161376f0db4cf2aeba3ec92755fe2fcd388bdbbb80ff196",
"extractor": "fixedAmount",
"params": {
"amount": "1000000000"
}
},
"withdrawal": {
"event": "0xe9e508bad6d4c3227e881ca19068f099da81b5164dd6d62b2eaf1e8bc6c34931",
"extractor": "fixedAmount",
"params": {
"amount": "1000000000"
}
}
}
]
}
],
"trustedSetup": {
"id": "TornadoCash",
"name": "Tornado Cash",
"risk": "yellow",
"participantCount": 30,
"shortDescription": "Circuit-specific trusted setup for Groth16 Tornado Cash circuits. It was built on top of 30 phase 1 contributions, and reached 1114 phase 2 participants. Proving system could be broken if either phase 1 or 2 is compromised.",
"longDescription": "Circuit-specific trusted setup for Groth16 Tornado Cash circuits. It was publicly announced as a Phase 2 ceremony\nbuilt on top of the [30th contribution to the Perpetual Powers of Tau ceremony], and completed in May 2020. It\ncollected 1114 contributions over 10 days, with 450 identified contributors and 664 anonymous ones. Tornado Cash\npublished the participant list, archive of contributions and artifacts, and the generated verifier contract.\n\n- Phase 1 ceremony (first 30 contributions are used): .\n- Ceremony completion announcement: [https://tornado-cash.medium.com/the-biggest-trusted-setup-ceremony-in-the-world-3c6ab9c8fffa](https://tornado-cash.medium.com/the-biggest-trusted-setup-ceremony-in-the-world-3c6ab9c8fffa)\n- Ceremony page with participant list and archive download: [https://ceremony.tornado.cash/](https://ceremony.tornado.cash/)\n- Initial ceremony announcement: [https://tornado-cash.medium.com/tornado-cash-trusted-setup-ceremony-b846e1e00be1](https://tornado-cash.medium.com/tornado-cash-trusted-setup-ceremony-b846e1e00be1)\n- Ceremony code repository: [https://github.com/tornadocash/phase2-bn254](https://github.com/tornadocash/phase2-bn254)"
},
"upgradesAndGovernance": "Tornado cash has a TORN DAO, which does not have the authority to upgrade or modify existing pools in any way. However it controls a significant portion of the Tornado cash protocol and periphery, including:\n\n1. **Default router for deposits and withdrawals and the official registry of supported pools**. Malicious upgrades of these components could lead to users losing deposited tokens. \n2. **Standard UI IPFS hash registered on ENS** ([link](https://app.ens.domains/tornadocash.eth)). Malicious upgrades of these components could lead to users losing deposited tokens. \n3. **TORN token itself**. Malicious upgrades of the token could lead to token transfers being frozen. \n4. **Registered relayers**. Malicious upgrades of these components could remove all registered relayers, disrupting user-relayer coordination and complicating private withdrawals.\n\n### **Governance flow**\n\n1. Users lock TORN token in the Governance contract ([0x5efda50f22d34F262c29268506C5Fa42cB56A1Ce](https://etherscan.io/address/0x5efda50f22d34F262c29268506C5Fa42cB56A1Ce)). After voting or proposing, staked tokens are locked for 5d 6h after proposal ends, preventing governance hopping. The stake can be delegated to another address. \n2. Anyone with at least 1.00 K TORN can create a proposal. The proposal spends 1m 15s in the Pending state, where voting is still disabled, followed by 5d of Active state, when votes are cast. If the vote outcome changes in the last 1h, the voting period is extended by another 6h. \n3. Proposal is accepted by the simple majority with a required quorum of 100 K TORN. Once accepted, 2d of Timelocked state allow exiting the protocol to everyone who disagrees with the proposal. Afterwards, the proposal can be permissionlessly executed within 3d."
}+0 -7
+0 -7
{
"attributes": [
{
"id": "fhe",
"label": "FHE",
"description": "Uses fully homomorphic encryption for private computation over encrypted values."
},
{
"id": "privateAmounts",
"label": "Private amounts",
"description": "Transfer amounts are private, while sender and recipient addresses remain public."
},
{
"id": "anyAmount",
"label": "Any amount",
"description": "Deposits and withdrawals can have any size."
},
{
"id": "defi",
"label": "DeFi",
"description": "Interop with DeFi (swaps, vaults) from within the confidential token."
}
],
"exitWindow": {
"value": "None",
"sentiment": "bad",
"orderHint": 0,
"description": "The confidential token contracts and system contracts are upgradeable without an onchain delay, so users do not get a guaranteed withdrawal window before changes take effect."
},
"privacy": {
"value": "7/13 KMS threshold",
"sentiment": "warning",
"description": "Privacy depends on fewer than the KMS threshold of signers to collude and be compromised. Each KMS signer is running inside a TEE. 7 compromised signers can decrypt all current and past private balances. Compliance can be enforced by confidential token owners blocking users and by configured underlying-token denylist hooks during deposits, transfers, unwrap requests, and unwrap finalization."
},
"reproducibility": {
"value": "Partially reproducible",
"sentiment": "warning",
"description": "The smart contracts are source-available, but users also rely on offchain FHE execution and threshold decryption services whose outputs are accepted onchain through signature verification. The offchain data cannot currently be fully reproduced from Ethereum DA."
},
"riskSummary": "## Funds can be stolen if\n1. a malicious upgrade compromises the confidential token contracts or FHEVM contracts with their escrowed underlying tokens.\n2. 7/13 KMS signers attest to an incorrect public decryption during unwrap finalization, allowing more underlying tokens to be released than were burned.\n3. the 1/1 coprocessor input verification path accepts invalid encrypted inputs that bypass confidential balance checks.\n
\n## Funds can be lost if\n1. an underlying token admin blacklists a confidential token address or otherwise prevents transfers from the contract.\n2. a user is blocked by the confidential token owner or by a configured underlying-token denylist before finalization/withdrawal.\n3. offchain ciphertext data required by the coprocessor or KMS for encrypted handles becomes unavailable and cannot be reconstructed.\n
\n## Privacy can be lost if\n1. 7/13 KMS signers collude or are compromised and decrypt private ciphertext handles.\n2. the offchain coprocessor, wallet, relayer, frontend, or RPC path records enough metadata to link a user to encrypted inputs or transactions.\n3. deposits and withdrawals are linked by clear boundary amounts, recipient graph, timing, or address reuse.",
"summaryTrackedItemName": "token",
"tokens": [
{
"token": {
"address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"iconUrl": "https://assets.coingecko.com/coins/images/6319/large/usdc.png?1696506694",
"symbol": "USDC",
"decimals": 6,
"priceId": "usd-coin",
"sinceTimestamp": 1766750819
},
"buckets": [
{
"id": "zama-cw-cUSDC",
"type": "pool",
"label": "cUSDC token",
"address": "eth:0xe978F22157048E5DB8E5d07971376e86671672B2",
"sinceTimestamp": 1766750819,
"deposit": {
"event": "0xcda691c81d2fd787d8c209adb4ae8b138f857d7575adf7669195ed05482e701b",
"extractor": "zamaWrap",
"params": {}
},
"withdrawal": {
"event": "0x87061fd1a5b3714805472c94c9eb8a6b8491992ee77791aa2594be67b92fd962",
"extractor": "zamaUnwrap",
"params": {
"rate": "1"
}
}
}
]
},
{
"token": {
"address": "0xdAC17F958D2ee523a2206206994597C13D831ec7",
"iconUrl": "https://assets.coingecko.com/coins/images/325/large/Tether.png?1696501661",
"symbol": "USDT",
"decimals": 6,
"priceId": "tether",
"sinceTimestamp": 1766750831
},
"buckets": [
{
"id": "zama-cw-cUSDT",
"type": "pool",
"label": "cUSDT token",
"address": "eth:0xAe0207C757Aa2B4019Ad96edD0092ddc63EF0c50",
"sinceTimestamp": 1766750831,
"deposit": {
"event": "0xcda691c81d2fd787d8c209adb4ae8b138f857d7575adf7669195ed05482e701b",
"extractor": "zamaWrap",
"params": {}
},
"withdrawal": {
"event": "0x87061fd1a5b3714805472c94c9eb8a6b8491992ee77791aa2594be67b92fd962",
"extractor": "zamaUnwrap",
"params": {
"rate": "1"
}
}
}
]
},
{
"token": {
"address": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",
"iconUrl": "https://assets.coingecko.com/coins/images/2518/large/weth.png?1696503332",
"symbol": "WETH",
"decimals": 18,
"priceId": "weth",
"sinceTimestamp": 1766750843
},
"buckets": [
{
"id": "zama-cw-cWETH",
"type": "pool",
"label": "cWETH token",
"address": "eth:0xda9396b82634Ea99243cE51258B6A5Ae512D4893",
"sinceTimestamp": 1766750843,
"deposit": {
"event": "0xcda691c81d2fd787d8c209adb4ae8b138f857d7575adf7669195ed05482e701b",
"extractor": "zamaWrap",
"params": {}
},
"withdrawal": {
"event": "0x87061fd1a5b3714805472c94c9eb8a6b8491992ee77791aa2594be67b92fd962",
"extractor": "zamaUnwrap",
"params": {
"rate": "1000000000000"
}
}
}
]
},
{
"token": {
"address": "0xA12CC123ba206d4031D1c7f6223D1C2Ec249f4f3",
"iconUrl": "https://coin-images.coingecko.com/coins/images/70921/large/zama.png?1764591992",
"symbol": "ZAMA",
"decimals": 18,
"priceId": "zama",
"sinceTimestamp": 1766750867
},
"buckets": [
{
"id": "zama-cw-cZAMA",
"type": "pool",
"label": "cZAMA token",
"address": "eth:0x80CB147Fd86dC6dEe3Eee7e4Cee33d1397d98071",
"sinceTimestamp": 1766750867,
"deposit": {
"event": "0xcda691c81d2fd787d8c209adb4ae8b138f857d7575adf7669195ed05482e701b",
"extractor": "zamaWrap",
"params": {}
},
"withdrawal": {
"event": "0x87061fd1a5b3714805472c94c9eb8a6b8491992ee77791aa2594be67b92fd962",
"extractor": "zamaUnwrap",
"params": {
"rate": "1000000000000"
}
}
}
]
},
{
"token": {
"address": "0x68749665FF8D2d112Fa859AA293F07A622782F38",
"iconUrl": "https://assets.coingecko.com/coins/images/10481/large/Tether_Gold.png?1696510471",
"symbol": "XAUt",
"decimals": 6,
"priceId": "tether-gold",
"sinceTimestamp": 1772116091
},
"buckets": [
{
"id": "zama-cw-cXAUt",
"type": "pool",
"label": "cXAUt token",
"address": "eth:0x73cc9aF9d6BEFdb3c3fAf8a5E8c05Cb95FdaEEf1",
"sinceTimestamp": 1772116091,
"deposit": {
"event": "0xcda691c81d2fd787d8c209adb4ae8b138f857d7575adf7669195ed05482e701b",
"extractor": "zamaWrap",
"params": {}
},
"withdrawal": {
"event": "0x87061fd1a5b3714805472c94c9eb8a6b8491992ee77791aa2594be67b92fd962",
"extractor": "zamaUnwrap",
"params": {
"rate": "1"
}
}
}
]
}
],
"trustedSetup": {
"id": "TransparentSetup",
"name": "Transparent setup",
"risk": "N/A",
"shortDescription": "No trusted setup and no additional setup-related trust assumptions.",
"longDescription": "Transparent proving systems require no trusted setups and have no additional setup-related trust assumptions."
},
"upgradesAndGovernance": "Zama governance is implemented through an Aragon 'DAO' deployment controlled by two multisigs: ZamaGovMultisigA with a 9/17 threshold and ZamaGovMultisigB with a 3/5 threshold. The multisigs can upgrade contracts or change critical configuration without a timelock.\n\nConfidential token owners and underlying token owners can freeze users. The ACL owner can manage ACL-level account blocking and unpause the ACL, while pausers from the PauserSet can pause the ACL. The exact roles and accounts are listed in the permissions section.\n\nOffchain components like the coprocessor and KMS are trusted for liveness, privacy and security and are currently not decentralized."
}