The Halifax Three (or the Halifax III), originally the Colonials, was a folk music band in Canada in the 1960s. The band performed in Toronto and Montreal before becoming part of the New York folk sce
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb930b41976576154ad00914ddac53ad9b491dc282a8588a564ae7f38b435312b. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d213643e-c507-45a3-a058-5e80cd311c88.json and https://artists.proofprofile.net/proofs/artist/d213643e-c507-45a3-a058-5e80cd311c88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).