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 0x458468667775e1ba6a3e3488ccfe48f39f9985707f8c84423481421b393b17dd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cb5c81a-f8db-4b07-a5ed-f5f2f7ba1366.json and https://artists.proofprofile.net/proofs/artist/9cb5c81a-f8db-4b07-a5ed-f5f2f7ba1366.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x50ab6878b1dfdc2f9b326a31c35839f98d42573cd414afdcc8401aaa54ca2597. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ESA011305510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336c1cf571ded66c9ae33944fcf1437bf25bc88137fbb4c93b378a034c0ae94a. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/ESA011305511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247001c425709e226f428ba8127933ce54fdfac935b33d91a6ef416ac9cc947c. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/ESA011305517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7987ee0b0b1204506c71befc66ec57190be27463b8dba639cf4f689a4b01484e. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:26:45Z), 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/ESA011305518.
Nuevo Anochecer Presenta: El Último Vecino y Futuro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d1e70fa140f5962a83135ed56ac12f0d7b84584aace447dba33afb9f5338d6. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ES03I1401002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885784ee2b46ce21d8e887dcd4e30e727deb91c9c51b80df9346afcbefb555da. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM4TW1558419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42daea44da4b9d2c1ea4b6762ecc06fa9843bac977e70cce4aa3c4acd560e89c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ES03I1601302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35e167609e59d35b81afaf1cf7cf002026cf4bb54eeb5183dc060d09aac68a8. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:25:53Z), 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/ES03I1601303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe66c2a04500064292636f4784cc598ca62b024d2d83e40b30f2562d1c0500e3. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/ES03I1601304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dd581b018f85ed0d0e18c0c207d28215805a4ee805eceb7ebca9ae371f3589. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:22:40Z), 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/QMDA61589363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6a375fcfd5f946ad87367c0cd78202ff92926dbbeeb050a4e86045f463c902. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:33:11Z), 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/ES03I1601307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4af221721918cbbaf3665a1bd8a55b154bb7aee86a3d8224bd7db9ce89df75. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/ES03I1601308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ac0fe014299504f9e749bae13d78d978a62485cb8fef860fffd256962bb5f2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES03I1601309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab282cd341432cf4ba0ddfd039619d3f457e83c4f43cf50042e604cd7f24805. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/ES71G1706976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569a8d30c20eab65aa379cad8a78d50e104ae7f9a0bc157afa9fc237f6693806. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:05:54Z), 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/ES71G1762924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ed7a73669aff04f0f55581de0739a836b917e7b09f36f34bb83323f32639e2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ES71G1823129.
Chica Nueva (Música Original de la Serie Looser) [Instrumental]
Chica Nueva (Música Original de la Serie Looser)
Chica Nueva - Música Original de la Serie Looser
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd11f3ed34e217ab5d88bb3767d94ab7798e5f7789e5669fe9cbf83ebe73fa28. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:16:43Z), 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/ES84S1700515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf486cfe3a0c74c710cb5f1351b28720e53948ba53ce239b02b12537dae9365a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMARG2050468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387936ca7f79bd56d269db0aeb0b915c9e5e56615db91c7ae92f5d49501ee6f7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMARG2050469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d54cdad18e73fcf1f2ccb971c0f433b701875b5fae5a2ee3f6e2c97a02d539. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBPVV2003702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2033174e94e333d9aae374c2aa054155413a35c7b3eab8ee5381dd7183732feb. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBPVV2003703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313e6712b1d463d1a99970ffcf573e03f4ec1004feb7a72c8ba23032bd6abd50. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:53:52Z), 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/GBY992006537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb03406cc8a88341279daf8c2d206a3b7f8a49781fec1437cf39752e86a2331. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:59:09Z), 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/GBPVV2204099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea97a4a134b74c2d60b4dbea4bb2c5e6157155be8bb8f000cb4845a439d42175. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBPVV2204101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bcbc872d44b6ea5006e5c7fa49646f6e4c83db18d7d6b20d74d89d947f1f38. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/GBPVV2204105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdae5fa292895bc9d635fd109522916fa5d9d9bbc9c890b5c65e0a64900d0aa7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBPVV2204103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cae2e2f0d0f09de25bbbef82106dcc2405a46f15239bfc37e6c15924f4226a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBPVV2204100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb673af4cda3d191615e9c8d8230f7c86933c396e7feff69b76004d0f80987e26. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:00:24Z), 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/GBPVV2204107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed1f9ed97d54eaad9d846d6e4d5a23a9ca8a0dbe88d2b83873369412b00803d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM4TX2397312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b0b43cbba0104512c31fdd218b049ef0e1978c0965590ce55b65c0707e1acc. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QM4TX2396592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4239c3570659c0c52385e525fefbb0147644975426200abb83a4c4a8c4786a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QM6P42348437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6d3924a8d886c3704795cb2ecb5fd8820c7ed4ba5b9a268cb45123a0dc0663. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM4TW2467360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9ad181060394811108c9260e82f5e2c0281aa0a01979b9d7e2ef375f11a860. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QM4TX2432386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305facc176a5e13c228cdad87f2776637055c68327dfd3984ce37cdacc56570b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:03:02Z), 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/QM4TX2432380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fa808010a03c6186d38bf460ec3718a903336440f03eea962fcdaa3b2df042. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QM4TX2432381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6716f0f5b84278e65bcd61857296d8fb1cce249aca9a91cb34fca14acbf0355b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM4TX2432382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53c30b31df404a10372152e10e4eb5d6c85c17eb7525425d32b32d384c62bad. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM4TX2432383.
Primer Disco de Nueve Desconocidos Llamado Nueve Desconocidos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211f67f1c4fcd83acb041cc8978fa41be60b367caf7b8135ca8723aeb3caedc7. 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/QM6N22138413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211f67f1c4fcd83acb041cc8978fa41be60b367caf7b8135ca8723aeb3caedc7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM6N22138413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ab7e72ef7e9291caa4c798a635c156268fa2585ff69d80815738c37668c1a7. 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/QM4TX2217886.