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 0xaa16a4bca92a6f9de513cdff6b91dfb344c2d7a07ee3b478503550f67d2e0b51. Chain 2 (Bitcoin): anchored in block 953922 (2026-06-16T09:36:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c51d6c7-f068-481b-85ca-6b508eaa0e72.json and https://artists.proofprofile.net/proofs/artist/1c51d6c7-f068-481b-85ca-6b508eaa0e72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Spanish Guitar Music - Beach Wellness and Spa Background Mediterranea
Timeless Tunes: Classical Guitar Elegance