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 0xa704f8103e55b186a4d4c4ed235072b1694e794d9fbee5b157913c0c7f9329c8. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/852017d2-2752-40a8-ba6b-d30297d431a9.json and https://artists.proofprofile.net/proofs/artist/852017d2-2752-40a8-ba6b-d30297d431a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Al 57quaranta170 - 06 per chi chiama da fuori Roma (Live at Vittoria Theatre)
Noi, ragazzi del 2000 - Live at Vittoria Theatre
Amnesy international - Live at Vittoria Theatre
Rocco angeletti - Live at Vittoria Theatre
Compagni camerati - Live at Vittoria Theatre
Cinquantasettequarantacentosettanta - Live at Vittoria Theatre
57Quaranta170 (06 Per Chi Chiama Da Fuori Roma)