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 0x96622aafc978d7015e2e6772142483e4dcd0aa8483409d1a59aa21175b12c046. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21424b4e-7f06-48cb-8c9e-d166644c8a26.json and https://artists.proofprofile.net/proofs/artist/21424b4e-7f06-48cb-8c9e-d166644c8a26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jazzin' Fur-tastic Jazz: Piano Music for Pet Owners