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 0xabee0defa61231e9f57676cda099ce60fdb37708cdf9ef62cb1c33f5991a7e55. Chain 2 (Bitcoin): anchored in block 953670 (2026-06-14T18:07:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5909ff44-274c-4539-a461-9e21ac3deec3.json and https://artists.proofprofile.net/proofs/artist/5909ff44-274c-4539-a461-9e21ac3deec3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Altres Cançons de Nadal 4. Un Nadal Amb Nens