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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ca62a98e46b90439877f319e2b4d0095e502ba4c6d2b76519e7bfe1e7dbcae. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e71a66c-1a0c-4ae0-b9f7-df95f34c2c80.json and https://artists.proofprofile.net/proofs/artist/7e71a66c-1a0c-4ae0-b9f7-df95f34c2c80.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kalon (Colonna sonora originale del programma Tv "Al di là del fiume e tra gli alberi")
L'Ora - Inchiostro contro piombo (Colonna sonora della serie TV)
Per niente al mondo (Colonna Sonora Originale)
Gli Attassati (Colonna Sonora Originale)
Spring Waltz (Original Motion Pictures Soundtrack)
Another End (Original Motion Picture Soundtrack)
Gli Addestratori (Colonna sonora originale del Film)
Narciso (Original Motion Picture Soundtrack)
Afrodite (Original Motion Picture Soundtrack)