1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x12fb33a21b916361992ac77132dc9d5d282dda12f1d9970f2fd944ed4e9c2f3a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04c6fbdb-bb7a-493d-a982-29d20f60d4b6.json and https://artists.proofprofile.net/proofs/artist/04c6fbdb-bb7a-493d-a982-29d20f60d4b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chansons supérieures (Original artists original songs)