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Fidemark

Fidemark

Prove it's real. Prove it's AI. Prove it on-chain.
Get started How it works

A decentralized protocol for certifying content provenance (human or AI) with on-chain attestations verifiable by anyone, without trusted third parties.

Built on Ethereum Attestation Service on Base L2. Tokenless. Permissionless. Each attestation costs ~3.8 × 10⁻⁶ ETH at typical Base fees: about $0.009 at $2,300 ETH.

Network status

Section titled “Network status”
  • ✅ Base Sepolia (chainId 84532), live. Public test period in progress.
  • ⏳ Base mainnet (chainId 8453), pending. Deploy is held until the public test period closes.

See Networks for the deployed addresses and schema UIDs.