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 0x80e9764e118396b53f5186a35bd0151332c75b9fd76f08096bc19abcf150a086. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/567d95e3-f793-4b3d-afc7-92a4bc2c9f01.json and https://artists.proofprofile.net/proofs/artist/567d95e3-f793-4b3d-afc7-92a4bc2c9f01.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 0x18826b7da657ca1e1c34ded555e5195f899b54aa14e6c6c6fb9ece029a524fe1. 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/USUM72310533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761941c18a8d126c876cc194b894369abe2fe052dc9377c65d4e87dd72feb56b. 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/QZRUP2200426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9d13b1ccda42f47170fbcca6c7311f14c0ed43330ea648eedf42497b63133c. 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/QM6N22231541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9b2c3a2ec7839619061951cfa1e3c8efbf09fdbd254312c374a2b37404de92. 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/QZTV32314241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504defa2efaa4be12d4fa47b010f2cf4654834232b5e4fb898c4edb4eddcc890. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USUM72317426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8db85b0f86bb1403cf13cd6762f700f294a884bcf999315578f22ecd422069. 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/QZL432400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6a662e3aaa4f0e4417cb424d601fdb7653195005879e2ef5abf6e16b0e9d51. 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/QZMR82200661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b567a59a143505a8dd043d0dc9000668e1b9fd53a30f542b7f714e92e13b841. 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/QZ7R42556263.
Banana (feat. Jory Boy, Three Seven Music & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d666d08017bcf4c32b5ee73f6d54ea975e8055fffddaa3ef2f646d8b957184. 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/US38Y2425320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439f08af25ee95f78255645c67d2c4b3b5cb3d220cb6a0e2cc88ece58e3b0222. 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/QZPLS2392699.
Agresividad (feat. Boy Wonder CF, The Chosen Few & Three Seven Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30eb09ea7253e0cc2ebaae096ba7f0cf74270e97160702e9b5f2cdf4620a2ad8. 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/US38Y2431412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7957b3763a90bf3a8f93ad206f0162c344de7ab8fd26d423092981515b12d3f9. 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/QZK6F2543062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf82e05bcea9d65ba779ff0f2bd2b0665f6ee070dc98b76870e64d7a29eeff77. 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/US38Y2520655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c5293a77000b7bc836d4b5984834febef7ae13f369aa8504f1eb631441fe5a. 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/QZKDT2000484.
Mueve El Cu!! (feat. The Chosen Few & Three Seven Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b06240cd215b108fefd8387daea43a98dbf6ddd41f416017fa973c6e83135c2. 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/BK4DA2502562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010e41c8ce93b98745869b9865e9013038dc6e6b3077b354a9c30610f4d181d0. 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/QZGLM2541242.
Limpiecito (feat. The Chosen Few & Three Seven Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2608a918a1c7a6d7b673870d5d0f204320206851ea1f35628bdc71ce2ce349. 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/US38Y2434748.
Dime (feat. Three Seven Music & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30468e107ac37b38976c41a6083bea29ec2811ed64a25dfaee63713fd8b4658b. 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/US38Y2419656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d2f07204da2b1efe6c7a62714500c43c7a8de62a3bcc20f868e79dc46a0c50. 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/QZKDT2400710.
Bien Happy (feat. Three Seven Music & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd26fe89cf5876113e88ed2a6d7139de5eb485fc8dacb9f7dbdbf2f9a79e095. 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/US38Y2426930.
Descarada (feat. Three Seven Music & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bcc524315222148c046dcff1b358e12a9149a98d97e29bf0dd7dfec3877820. 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/US38Y2426707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa437606d84a8e91e3d8711b3487b00399df0f267337445468a60bf8fcb8d28ed. 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/QZW9K2494007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae15752ee45e111c2b5bba55d3f5f6896d7036e9b4573f17a0c836af6062a76. 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/QZMR82200562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e45735c193f8f00d13ef1805cbc65aa3a0686aee9194fcd037a4e7d4d51a10. 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/QZTBA2487804.
Mirame (feat. Three Seven Music & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ca189ceb699c1114e07b3406d26ff39eeb2e0bd7f22670cfbbe7d87d3aaf25. 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/US38Y2422524.
Travesura (feat. Divino, Lenny Santos, Three Seven Music & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6988985862b909e4ef17ed05c06cfc4cf7c29c8fe78c13a761f2936bc3df1d40. 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/US38Y2419654.
Problema (feat. Kino TTF & The Chosen Few)
Quiero Fiesta (feat. Kiko el Crazy, Three Seven Music, The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ca61cb0ecf08ed88b63a02d23846d5fac1441e71b358854ddfd29615ebc497. 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/US38Y2417534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e96101d83aa1121c15abf6b4ff376e777f7ae45060244402b30e5c7b1fc151. 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/USUM72404362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4680ba980d5f19dc0289f1abb3c9aac02d861af7e71cb8e33c8087a60e4ac2. 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/USUM72402440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1792a5c7b32e52c6f1f5acc8ca9ded6112ca44487fcab0b3243894c6d8ef4a98. 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/BK4DA2401978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9764ee99ce5f50146f975512a4ab368a31de45e398adc4e575934e14c4b558a. 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/QZTB42348753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a13d3982a46ae0197abf29649bac1e4f2f3a03b7e69d0a7124914ab65e568c. 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/USWL12100570.
Pa Que Sude - Gonna Make You Sweat/Chosen Few Mix - Global Version
Pa Que Sude (Gonna Make You Sweat/Chosen Few Mix - Global Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8dacc9fbc467bba0fc069d43f10a2b6fe7da301224f0a245867ad1f81da22c. 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/USUG12308059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3629cca62ab88bf9522da4ce4b7ddce851510ee1b6d71e3c0d1f21d063105c4. 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/QM4Z22346821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf165774d6668f81a5a348dc50d5a140f2bb6b57a7586e7293922c9a3e25819. 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/QM4TW2324695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0231f2e3af04747827353a40c5f6e21593b27eae313b95455e4e761b051e3699. 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/USUM72215832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf7de9d291fb68a3c3bccaed8fa697ff49c621552dca93be2028a59eb3fe170. 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/QMFME2193353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbdfb53afc441dbb951c2fd8c8856438a8eaf81bd7213fb882af565c1b240b8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USA2P2117486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd13cd061049a618e570d5f5eba0f1b7b31e6a353fbe8e64b25c44856f416d1. 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/GBWUL2185610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb8ee6a3003a8e9c33d0c30e87dfa6ff24a1a341454dc4c6723d51a0f1670e2. 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/QZ5FN2071248.