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Union Private Payments leverages Union’s ZK stack and lightclients for verifiability. Audits are hosted here.

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Attestation service

The Union attestation service stores data encrypted at rest and is backed up in realtime, ensuring no dataloss.

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Cryptographic Guarantees

The zero knowledge proofs are generated using gnark, a fast zk-SNARK library that offers a high-level API to design circuits. Regular privacy protocols are vulnerable to infinite mint or double spend attacks. We solve this at two layers:
  • Cryptographic enforcement through ZKPs
  • Attestor accounting
This ensures that even in the case of smart contract vulnerabilities, the system remains 1:1 backed.