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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd14ca25f853a0384bae2408b20c4cc2a1bc071ba5f718417212a2137fd0d3b2. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13602665-950f-4b5e-9e43-fa349608fc60.json and https://artists.proofprofile.net/proofs/artist/13602665-950f-4b5e-9e43-fa349608fc60.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Otello, Act 1: Una vela! Una vela! Un vessillo!
Otello: Esterrefatta fisso lo sguardo tuo tremendo
Otello: Dio! Mi potevi scagliar tutti i mali
Otello: Innaffia l'ugola! Trinca tracanna!
Otello: Capitano, v'attende la fazione ai baluardi
Otello: E intanto, giacché non si stanca mai
Otello: Già nella notte densa s'estingue ogni clamor
Otello: Quest'è il segnale che annunzia l'approdo
Otello: Il Doge ed il Senato salutano l'eroe trionfatore di Cipro
Otello: D’un uom che geme sotto il tuo disdegno
Otello: Se inconscia, contro te, sposo, ho peccato
Otello: Mia madre aveva una povera ancella
Otello: Tu?! Indietro! Fuggi!! M'hai legato alla croce!
Otello: Ora e per sempre addio, sante memorie
Otello: Diceste questa sera le vostre preci?
Otello: Niun mi tema s'anco armato mi vede
Die Meistersinger von Nürnberg / Act 3: "Morgenlich leuchtend"
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 → block OTSBitcoinBlock must exist at that height 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 0x0f1a36855d35ada18ecce6912f41b0fe83a949775cf2d96761d82f7ef69b7551. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEF057630660.
Die Meistersinger von Nürnberg / Act 1: "Am stillen Herd"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c4f8e943b2113a5da0f1752d86d4d9d5b04f1c3a01f15bd5d3b2c930a7a4cf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEF057630658.
Die Meistersinger von Nürnberg, WWV 96: Morgenlich leuchtend
Die Meistersinger von Nürnberg, WWV 96 / Act III: Morgenlich leuchtend
Die Meistersinger von Nürnberg, WWV 96 / Act I: "Seid meiner Treue wohl versehen"
Die Meistersinger von Nürnberg, WWV 96 / Act I: "Am stillen Herd"
Die Meistersinger von Nürnberg / Act I: Seid ihr nun fertig?
Wagner: Die Meistersinger von Nürnberg - Highlights
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35efd40d15d656f987fe102bb6956ccd0daed4a174b350900136c4652f4feb06. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEF057630603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b1b83813c3a0cf1a8a7f2c5b94baae0ae5127f0dbb9493b9ca857b67f6d153. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEF057630614.