Brendan may refer to: People Saint Brendan the Navigator (c. 484–c. 577), Irish monastic saint. Saint Brendan of Birr (died 573), Abbot of Birr, County Offaly Brendan (given name), a masculine giv
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 0x7cf096635674a9084f630fa698086f1b4c67609b4aee6944177769954bc994a6. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc197ce7-cb56-4ea6-b0e1-bc558ed9fc6c.json and https://artists.proofprofile.net/proofs/artist/bc197ce7-cb56-4ea6-b0e1-bc558ed9fc6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).