Eyo or EYO may refer to: People Alicya Eyo (born 1975), British actress Effiong Okon Eyo (1918–1983), Nigerian politician Eyo Esua (1901–1973), Nigerian teacher and trade unionist Eyo Ita (190
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce9bd44a0a332d4e9db10a91e253a2b16b939c4e8c609af34a7e5bc89a8cc6e. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb2a9714-3f83-4ad1-8ee9-5ea19a8ccf67.json and https://artists.proofprofile.net/proofs/artist/cb2a9714-3f83-4ad1-8ee9-5ea19a8ccf67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).