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 0x9705553ca530f73aa4bc45cd3549da84a6e6776610d4b1fefc98e97a7110b9b8. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c6e7119-1b00-4139-9268-029d1a46e80b.json and https://artists.proofprofile.net/proofs/artist/6c6e7119-1b00-4139-9268-029d1a46e80b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Singers of the Century: Franco Corelli, Vol. 2 — Young Hero of Italian Opera (Remastered 2016)
Ponchielli: La Gioconda, Op. 9, Act 3: "Prodigio! Incanto!" (Coro)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866534386ea99c83d721ae848d96d23bf909e1bff6562dfc206c4cf728e8a154. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2203399.
Puccini: Turandot (Cigna, Merli, Olivero) (1938)
Verdi: La forza del destino (The Power of Fate)
DONIZETTI: LUCIA DI LAMMERMOOR; VERDI: RIGOLETTO; PUCCINI: LA BOHÈME; MOZART: IDOMENEO
Verdi: I Lombardi alla prima crociata (Recorded 1957)
Giusepe Verdi: Otello (Conducted By Mario Rossi)
Mozart: Thamos, König in Ägypten, K. 345 (Live)
Pizzetti: Assassinio nella cattedrale (Murder in the Cathedral)
Donizetti: Lucia Di Lammermoor (Pagliughi, Malipiero) (1939)
DVORÁK: SYMPHONY No. 9 "FROM THE NEW WORLD"; BORODIN: IL PRINCIPE IGOR; BARTÓK: "ROMANIAN FOLK DANCES, FOR ORCHESTRA"
Verdi, G.: Aroldo [Opera] (Basile) (1951)
Alfano: La leggenda di Sakuntala – Bellini: Il pirata
Weber: Der Freischütz, Op. 77, J. 277 (Sung in Italian) [Live]