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 0x04f2439bd6e3823a546d4888973ab015492ba4f4bd8e7ceb8d3c1275f70633aa. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8923243f-c93e-45c5-ab05-824ecb0b0664.json and https://artists.proofprofile.net/proofs/artist/8923243f-c93e-45c5-ab05-824ecb0b0664.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
There You Go / You Can Call (Digital 45)
Until You / The World's Biggest Fool (Digital 45)