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 0x3d9ad20c1ec8e85abb7387b5fd4721bda969d2f3712242696a84e2043ef3a3eb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/146f648c-2c77-42ad-a71a-7744b8466e48.json and https://artists.proofprofile.net/proofs/artist/146f648c-2c77-42ad-a71a-7744b8466e48.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aida: Act I: Se quel guerrier io fossi!... Celeste Aida
Aida: Act I: Ritorna vincitor!... I sacri nomi di padre, d'amante
Aida: Ritorna vincitor! - I sacri nomi di padre, d'amante
Aida: Act I: Si: corre voce che l'Etiope ardisca