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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7581b1dd1e4a7da6245214f90653c815e3ce3dc0fe01d7c621ac3889b04beb47. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4df49c3-6c86-444b-b8a5-e20d805f755f.json and https://artists.proofprofile.net/proofs/artist/d4df49c3-6c86-444b-b8a5-e20d805f755f.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b327d3eb48c6ff3be89f42cec10db2796ba3819e26f4f8e15b83e7dffd43cc9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA622201699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba826b3c4981db7e8645e3c5aad65ee03f2e21e91c765f6e27f08f72f278539. 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/DEA622201701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa81c8776480f7969887701e879158203a2b17c14ebbd80b300dd47809dde2b8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBHAD2400058.
Marianela Confusion - Six Eight Extended Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e312947d97c82ed4a71033512f21c6644e2102971bf0155ee593150ba5c972b. 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/GBHAD2400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4027a7994b8671f4e7328a98bc56cc982b2a470fd73bd6d77862e081129bb80. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USHM21767741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc89647904fec907d3c2d0a34bdf008e42a197723644e2f9e63f725d66acd1b. 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/USHM21767743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba18b0c0eb8c616e22fca412cc3d601646631835b95390f76a97fbc81c4a0c3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USHM21767744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe678b2f8e81523d36f134fec6837c5b26e5d22609172ba495b637c2e82ad48bf. 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/USHM21767749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a67ee778e2abc4fa6ab493b572e10995a248d01360cdd3924d984eda9f92de. 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/USHM21767750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33c293a4d962fabf8bd300461cbd1b5da7cab0a48775d27b9e00051521c3497. 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/USHM21767752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf4e0cba9a230ca3e788e216c9da52d72bbf77d104fa45d0dd8a30334fd33e1. 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/ES75E2500661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6256f3de563d0d3d1d527236d494ee8de63195a909b8ad5d7f1d450fc849c7. 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/QZKDT2400342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe40a4a269927732ec3b901bb37e34b959c042b6008aea226eeed2c9f9763b26. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IT0312300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d2cc889e3ea53a419d49ebdfe9e93d03f4113d07e7f8172c88e92cd6ff8801. 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/QZKDT2201166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddee15e499676f5d086677aae7f235c0d24d7f3d56bee9e21946bdd4e2080ecc. 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/QZKDT2201100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9206d81301275316dfbd70af51db85dfb8b0218eaea4bb4f647a21e8c83fa683. 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/QZKDT2200901.
Vamonos Viral (feat. Afro Bros, Dixson Waz & Morry)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed6b71d701078a806f8fde296dedb9603e5694a85655fd0d287b617c9206c0b. 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/NLK2U2200518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b3fe59e12bdd3964c13eb33fc728e7cb49b6c54507d7577da11a3507613c29. 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/CA5KR2244847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128d5244f525d417491cac01835381b7dab5672fa52cedf91b471f60a27a0634. 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/QZKDT2200291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905d13408f6a69c4a4b3029b5df588bdb62da3f0ab67d0bd03c0e7502c3e7484. 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/QM4TW2256552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f27eec82f09d9c7e1caa9de35e93a2dbb963ce889009db0dfe47e1b2959d9d. 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/QZKDT2200195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a855f248fac5aa6395b3f9a60457520015d92071dc83f9eba39991f1749ddd. 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/USNPW2100463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229c3182a9a5770fd49dea599baa1f3d6bcc01015be10dfb06fa7a5b089c3b7f. 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/GBRKQ2187260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd36f0cf5c38a33d2e1e8102fcace8f342a43fec39aa1207d7e2c815a8cee1b. 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/QMFME2162207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c1519bdc30f45955d325437cb97d6793eaae792d239861800ff7ee7a69e88d. 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/USNPW2100441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2d05ccf72c179bafd54fb0705ad8e80346294a923d9bb039f123c71e2e590a. 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/QM4TX2187921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacc13b8916b805efa1cd60dfacdb6c5c9aae499cef4c2254d246dff8710a808. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ESA012196401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab29b6caef7761ec1284a2c9b9a6d53742c8a377cf06347c2af0a510e171a443. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USNPW2000413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc325fe29b7d97549c06b78347d915d5d07d01d23942f4111b721ebd2e376c213. 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/USNPW2000415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c5e0dc24be701c53cd7847a82060c27509548ec72dfe572ccd3e94351eaccc. 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/QZ5FN2096069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c1500b7fe357dfbf51cba98a53d9c564c975f4c05dbcdcfe30ea5bd5c653bc. 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/QZGLS2084156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6905f786eaccc81c44fc29b274d994801138b18fe93e7db96777a4dc464c28. 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/GBWUL2087280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16c67da0db84d652d66e76a1d185ac4f246124b5f863f180f4f9b216bb23a20. 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/TCAER2052928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90be832d8b2dda2919714f163aef6fd1fda96ada51e361959bc1417d767e77b0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBWUL2022373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75907b58ac2f1bda5e8a1a42c0523c01122c85ed39b04493d9c9fd50b393ad4. 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/QZKDT2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e4b7ed75dbe47c255ab5cdbe8602620f65463e0bc45721ad2dd00aae111829. 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/QZKDT2500117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b13dbfb753f2afae99a64c90f0f9bded390825095e5dead7e0f23d2d46c3fe6. 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/QZ7R41952379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba826b3c4981db7e8645e3c5aad65ee03f2e21e91c765f6e27f08f72f278539. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA622201701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19852e65f0a4c629f95a5c448eafae68617e9df2561179489bc3884226eee9a. 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/QMBZ91969723.
Vitamina Q (feat. Justin Quiles & Lirico En La Casa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77258068d30f1c44ba986cc076eaa855e1157d9a44ca328b65873d2c8893a828. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USWL12100318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90b5637a787db64d9681e8b2a71b14bf4e65346825561896a805103215ba9cf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TW1989137.