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 0xce33bb89f0ac987ff5b8dd8d6f1efd096351c4650e4abd89d47aa780873d2c37. 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/97a56cdc-6fcf-426c-bb2b-8a67e245f750.json and https://artists.proofprofile.net/proofs/artist/97a56cdc-6fcf-426c-bb2b-8a67e245f750.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 0xe040930afa2197ff588b634575a1f156b679240018927cf3d350ed841a4f5ca4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USUM71307424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5b5d21edc0f3c1cf053332c517ae9c19b053c52a20eb280a4b5b324fc4d35e. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/USUM71307434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6254d80b85766a442f04e5fc3e8d9133593d5be7136ecee9ca6ad9c5fd963466. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USUM71307435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a780e09a595ac8302ce7bf485e92ae272bdbf45c0538b8a602d5acf79a73b9f. 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/USUM71307446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3edfb0f746a714154dff343e3e89021d8339a8c1f793f2f1241817416dc49f. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:50:13Z), 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/USUM71307447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ef20111c13311cbafb7f0caa7637df4f2a1ab1a4efe902f8c75815f303002d. 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/USUM71307448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d27665f5de5a039ee7f8cf54ba592fa433ce74cba972b3759eee7f85edf6c1a. 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/USUM71307450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabfb1e8fc50c0b7ce50360958e4ac561364f447c0e94e279564ccf642d3c3f8f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USUM71307452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae85defb13194fc1a5279629ae03f5073800046a928c1f3432a36e5ea5507c7. 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/QMQ3X1500810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde02c13b73c0d171cae6be6047b38d0c2829f2d1c2f49726fd76456b8d37e5f. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:20:35Z), 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/QMQ3X1500833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219ee7040cbf6f8d677caed61929db1a3ecb43dcf4027dd7d3426dfffb52c2ad. 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/QMQ3X1500834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26b87fda56b0616652d7ba2e0edcb3d65291b6aa6df86cbf8bfd3a15421f696. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QMQ3X1500838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f27e316bea513a43b822dc638e301342eec4812168eccd17aa0af8363e9eea. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QMQ3X1500839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2b000adaaef0628e046d290c6cf86b868ffc2481e186813942bc37b5e2e2d5. 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/QMQ3X1500811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a516101d0725502d35b5e72c7baf2f3f019b50ba1b92c2b29b149a797d1170. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QMQ3X1500841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabab4f36320ad5d401b9e0d5e671e019500a3c8ec3654e7e04e9a7abbc94bed3. 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/QMQ3X1500843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e9a9ef1bcbd0327d813262fac82f8e18b0dee1a6b1fce6dd4f321e71063d6d. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QMQ3X1500844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3f17a033e6e246aed61dfa3c66470f4f83ad11a0efb3ba6b4383272adf8925. 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/COA2N1700014.
The Case For Christ (Songs Inspired By The Original Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf84983f5344dae101c91058d0c820a19f825c3772ce3744da2d341800fd73b. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/QMQ3X1700648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31952495672464f08b032aafef50bc651968a4a5b50eb86747a7f0c98bbde34a. 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/QZ5AB2229230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8f41c98c23bced7b3ad05993b56f629e06b683c119f7fc96751280d6d6ff5b. 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/QZ5AB2229231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5160dd9ba927a20039463f39ed06c4548b021b4d1386f9f4be9951db001b6747. 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/QZ5AB2229232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20045248af66d3af75603a60e7d2ae1f63c4e4bb9f149baf16fb91317d4657bb. 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/QZ5AB2229233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d629df328af0ab73ec9a35ee932a4a1b33d905c9ff5f6df5c03078ea623f41. 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/QZ5AB2229234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8617fd5f4fc6735d70c5a25612e8bf3d0f547a7c9d4469392802a253e8206fb. 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/USUM71305232.
Guatefest (feat. Redimi2, Alex Zurdo, SoulFire Revolution, Bani Muñoz & Banda Alternativa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82913678284193088d7cb112e42f1d7e818ac8cff065e611606dbfcb6a92cb3a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BRIMU1702577.
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