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Glossary

Glossary

  • L1: Ethereum mainnet
  • L2: Aztec, the privacy-preserving rollup settling on Ethereum
  • Proof of Personhood: Proving a real, unique, non-sanctioned human is behind a transfer without revealing identity; satisfied by Proof of Clean Hands (PoCH) or a Human Passport score of 20+
  • Proof of Clean Hands (PoCH): Identity verification flow issuing an on-chain Clean Hands SBT after government ID check, liveness scan, and sanctions screening
  • SBT (Soulbound Token): Non-transferable on-chain credential bound to a specific wallet
  • Clean token: Token (cUSDC, cDAI, etc.) entering Aztec’s private layer through Shield, indicating an identity-screened holder
  • Attestation: Signed message from bridge attester confirming user passed identity verification and sanctions screening for a specific deposit or exit
  • Proof of Innocence (PoI): Per-deposit sanctions screening of the depositing address via sanctions.io, run at attestation issuance on both entry and exit
  • Nonce: Single-use identifier on attestations preventing captured attestation replay
  • Cross-chain message: Message passed between L1 (Ethereum) and L2 (Aztec) coordinating deposits and withdrawals
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