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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9691ae649a18aa5bb3dcfffde42063f9b3d7630d947d39de7fb258e01a8c63c. 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/e710123e-c895-4e46-8826-eeeb4fbf83a3.json and https://artists.proofprofile.net/proofs/artist/e710123e-c895-4e46-8826-eeeb4fbf83a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Nuit est Longue - Instrumental Version
Ou Allons Nous D'ici - Instrumental Version