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 0xb8be7e7c6173867878803eb3d3a651830a9a77b4a4757e2e4901e6aa991ec081. Chain 2 (Bitcoin): anchored in block 953621 (2026-06-14T09:42:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e3417a8-8210-4bae-bf7c-a80269ad87ea.json and https://artists.proofprofile.net/proofs/artist/1e3417a8-8210-4bae-bf7c-a80269ad87ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sud-Ouest: Les plus beaux chants des ferias
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 0x665b313d4abe566b4e11bf07d6050e3a93d469db602dfa449ea1de3a7ca9c7b7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRZ519500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb45f417aca892768f194624db848cb67e3821160d541f522c4e53286d69f943. 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/FRZ519800187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517f5c75854817223b34320f00fbe077ede25d85897c3ad966377e91e4fddf37. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRZ510200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34959d377da320f22cf2b760ea7d9db5ba3b280569809f386215940dbc8d02a6. 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/FRZ511000211.
Hymnes et chants des supporters du XV de France - Sélection Officielle Rugby 2011
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30c98b1764c44ae9561aad2f8567bec987dc5996a0905dcdb1148755c6dd839. 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/FRZ518900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fa1ade63e3a51d3f60da1e0bd826e4e94a19a7603f73eb5691595ee5cd6d56. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRZ510000430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c93a026c4153ddfe3cdcfa42454cb1426beec87053ff0af3734cf889f55115f. 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/FRZ510300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a22df923796c7b35d04d5310d50f8817122e58f97c69d06fac13ea245af1a33. 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/FRZ510500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa494b22cb17983ae8776cc6fb542446e3848e66fd6817db28d37f461fbd406db. 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/FRZ519900088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d1327f3fda1e89a4e46faa68a1d8799cb9e4bde5d803c1e1b5b65e3be3afd6. 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/FRZ510800133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c93a026c4153ddfe3cdcfa42454cb1426beec87053ff0af3734cf889f55115f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRZ510300044.
Les Bleus Supporters Anthems & Chants - The Official Selection - Rugby 2011
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2711ba3ca2447b6ae815f5ced35d2be2be6a3fae67bafd2a67da6d976fa4bf5e. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRZ519800366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665b313d4abe566b4e11bf07d6050e3a93d469db602dfa449ea1de3a7ca9c7b7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ519500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca3ecdfd7f2f22470af2bd866350f56378794d9d454e637db867909a190a3b3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRZ519800189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1154b402e321ff48e11403aad7a60578ee1407c318a09e2529c5e1fd46c6e352. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRZ518700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517b7bd692460338fea661f63d7a19a8430a7a39c560ad6aadf44fe9c3e30cf8. 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/FRZ519200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf612dccba75a05d1cce74e5958205b8e88c182b0329654dd63196c14ab69a6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRZ519700148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e3d9c97e680031cafa9bd67fb6ecf86317536e91e05bf3a44a1ccfc0a7104e. 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/FRZ519800199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1fb3173ab0d86add95112b58f141554e8d180e25c296b7a8fb97e3ea19cbf2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRZ519800186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb45f417aca892768f194624db848cb67e3821160d541f522c4e53286d69f943. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRZ519800187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ca8ff3c56207fe19c8348b68468d3c6ba7597a429dc95fa1d14caeb0cfb772. 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/FRZ519800188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca3ecdfd7f2f22470af2bd866350f56378794d9d454e637db867909a190a3b3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRZ519800189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd3c33fd5f3bb0054028a0d81ce5a105b1b9f2849798234b2ba4974091dbe36. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FRZ519800190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee03ce81834a9b256a1b2499793ebf1e96f8d462428bdd605891dbc6b576eaf. 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/FRZ519800193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7564ffe764517ceb3ed054daf9264c6b6fdad7ae79b4034e6d2768a98548756f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRZ519800196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ddb11025c13c479d6392d0313863de25aa1670e8ed620a8a0ff56df9982407. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:52:05Z), 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/FRZ519800197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df83c842f31fff5469fe4442b6c82cda88cff5c2dc029d72da3ebf2be468260. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRZ519800198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e3d9c97e680031cafa9bd67fb6ecf86317536e91e05bf3a44a1ccfc0a7104e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRZ519800199.
Le 12ème homme (La playlist des supporters des Bleus)
Samba Mégamix (Brigitte Bardot / Brazil / Charlie Brown / Mas que nada / Copacabana?)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62f90e26be7013ffb6c6f9ac1647c9646143997d961fee87296b21706a0e976. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BEB019081001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771d6ff24e65cdb3acef3ca3fb2fda903986248972c1c98b124477400ed4a902. 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/BEE039700400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b40d2e958c74c589445ed77e5bfd203617caab1a346b8517bbd18f703015b28. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/FRZ519800103.
Bandas en fête: Kompil le top du Festayre - Banda Issoudun
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90951e7169d42a8fd03619fc1849e433c0e79267a7b4da69798c825b6224920. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FRZ519800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34959d377da320f22cf2b760ea7d9db5ba3b280569809f386215940dbc8d02a6. 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/FRZ511000211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30c98b1764c44ae9561aad2f8567bec987dc5996a0905dcdb1148755c6dd839. 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/FRZ518900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecd8067def7cea6cc68f721dc17cccfaa9b39242381c565b13720165ed7006d. 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/FRZ510100019.