Harrison may refer to: People Harrison (name), a given name and surname (including a list of people with the name) Harrison (Canadian musician) Harrison (English musician) Harrison family of Virg
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 0xc621881241fa1c2add0695301ad4cb5438ab21a7e7d7845fbd2e4361dc83a557. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a59f4b28-a6eb-4757-914b-f4871b373b57.json and https://artists.proofprofile.net/proofs/artist/a59f4b28-a6eb-4757-914b-f4871b373b57.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).