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 0x84960c96b1a9f9be7cf2034a3cf298df236e3e5a45853a0999abbc0e1d5fd564. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74bc8e20-c198-43bf-bc22-ff935ce3eb6e.json and https://artists.proofprofile.net/proofs/artist/74bc8e20-c198-43bf-bc22-ff935ce3eb6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
De Esta Sierra a La Otra Sierra (En Vivo)