Cephas may refer to: Religion The title of Saint Peter Diocese of Cephas, an ancient episcopal seat of the Roman province of Mesopotamia, in present-day Tur Abdin, Turkey Cephas of Iconium, among th
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 0x7c472cff4a279407dfcb1c9008977d9efc633a49495d9ca50a909f2a89f6dd23. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2b2b7cf-8939-4bd5-aff3-b1f8a1ea591f.json and https://artists.proofprofile.net/proofs/artist/b2b2b7cf-8939-4bd5-aff3-b1f8a1ea591f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).