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 0x36b810683e107efe36dad905a5bd91634757319129931fc6c2ce21fa548afbd9. 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/2258b36e-4a37-4e0f-9638-d6cfafef7ce9.json and https://artists.proofprofile.net/proofs/artist/2258b36e-4a37-4e0f-9638-d6cfafef7ce9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
L'Amour de loin, Deuxième acte, Deuxième tableau: L'Amour de loin. "Rien ne vous oblige à l'aimer" (Le Pèlerin)
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 0xc25f095a966ba311b45599e6f2a0d5cc5d0ec02f3e139b810dd283b945843ad4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRZ140610080.
L'Amour de loin, Troisième acte, Deuxième tableau: À Tripoli, sur la plage. "Ben tenc lo Seignor per verai" (Clémence)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40206be4ff66ac3abdec606acff5b7929d7cd14ad6719c27126565f4a4fddfb7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRZ140610140.
L'Amour de loin, Troisième acte, Deuxième tableau: À Tripoli, sur la plage. "Non, par Notre Seigneur" (Clémence)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e054e2b16c2bf54f864b1ac52686982dc5a39ae30a7e31ca3d34724487ad9bc. 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/FRZ140610150.
L'Amour de loin, Deuxième acte, Premier tableau: "Pèlerin, dites-moi" (Clémence)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6322714377791b020ab803e8f1b6d0013d4ad789d8aa613d8a04d2a3453656. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRZ140610060.
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 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
L'Amour de loin, Deuxième acte, Premier tableau: "Un homme pense à vous" (Clémence, Le Pèlerin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9019f4be54302ce7e38e9b280a05423a42367551e8ee950d9bff56e4cde3abd1. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FRZ140610070.
L'Amour de loin, Deuxième acte, Deuxième tableau: L'Amour de loin: "Ja mais d'amor" (Clémence)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa36720c9a96522f7a598201e091960d5a4e47a41540040430614e496f83f24. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FRZ140610090.
L'Amour de loin, Cinquième acte, Premier tableau: Jardin de la Citadelle. "Comtesse, regardez" (Le Chœur des Tripolitaines)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d4a01d32894fa4b91bb2e671d995f6d64135681eead5b41657b24c8fea8eb9. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/FRZ140611080.
L'Amour de loin, Cinquième acte, Quatrième tableau: "Vers toi qui es si loin" - "Si tu t'appelles Amour" (Clémence)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c0142b706501e542cb2eb8345ada266a9c0227550ad24311a997073ed8cb15. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FRZ140611150.