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 0x060de7fd6c7b6f14e8397f14d2a1f2e70da1ff31ae5f1c9400dab4aab083c596. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bfd9beda-bf1c-4d1f-ad47-94ab05eb3dbd.json and https://artists.proofprofile.net/proofs/artist/bfd9beda-bf1c-4d1f-ad47-94ab05eb3dbd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
40 Años de No. 1 en Español: Los 50's, los 60's, los 70's y los 80's, Vol. 2