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 0xfc12a0c1f19ec30899050f089a6455a700ec1b294f7547f7d4744e821cd4b966. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa6834ad-a88f-478d-a2e2-1db0fb663fde.json and https://artists.proofprofile.net/proofs/artist/aa6834ad-a88f-478d-a2e2-1db0fb663fde.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 0x5f054e2ec09a714e128a6e23997a0b2c369f46cdf4213b74c66a40caf6197fb7. 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/GBAGN9200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b21a2309e279dbfe96212bde31f64a33b909a89f03d30508307ce7d58a59cf5. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBAGN9200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361f58bca5318b0744716ea776e95f0b1c74c52f3cda8b5cfb6412afc98da473. 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/GBAGN9100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1abb45fa777b968a2ada9b3a87407218e632c4e046e21eed48ed6636bbdea74. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBAGN9300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e8c859cdd1f9c718894840588c27686dd8caabf4bb5e4a2626e63fce74a6c1. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBAGN9300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29c84d914a86a270286a0d96b079b209456adcd70b2a723f0f3b469ef60c397. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/GBAGN9200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04d3f32ed3a5a6ec9d7748a0bb6a755e242ab3749a52fcba16251c74b8bae9d. 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/GBAGN9100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36812c2d97089dbf31886109a5638397227d5337bd6d1a695f3e3b018bd21533. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBAGN9100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a26461cefc361d189254b7b8b0af82cbd70fe9d7a642724cc773e52ab65ab9. 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/GBAGN9100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c28996e09c9ed082d0ae34db7caefcdbf7d8d08b3163ab731b4040f336d846. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBAGN9710039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b16fa6db15ee9966686fc0233001a22807aa09a2243edd2bb38359ed2f22f78. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBAGN9110008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448bcf345f16506a05419987959f1dc57b3f390a1ffca416a5b8a05ab0d25251. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/GBAGN9110011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926810e05ebe6351490b10b1b1f7b6f351cf46347b070683840c96f9be01b2a4. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GBAGN9110015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3869985985fdb083e3874e76f38a9d363dc5fc0cd173ac33b45a196b2f8bb5cf. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBAGN9210016.
Music Takes You (2 Bad Mice Take You) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a198ba8980ce4d3fd3be4b87baaf93c29fb18204882e0fbd0ca4f48955e1e45. 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/GBAGN9210010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5806fd50dbfd53dd6d3badaf96ff2f7f8c79272a81d77bf13538268793849ca. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/GBAGN9210021.
Renegade Snares (Foul Play Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee071a3dc93439b8fad0cf2d89e9c7fbd867211166a8804cd8b74ced96b9a67a. 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/GBAGN9320093.
You Got Me Burnin' (Ray Keith & Nookie Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93db4b10814717dee626c9e7919b73b333559e90814d00816d9cba2a1677286b. 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/GBAGN9310084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cf1cdb8dfce8971a9a5f06fb56331e2636da915706e9a6fb220aa5ed160efc. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/GBAGN9310037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996b565d152db51bc5e2389dd2e55f44916c449ae3eded932ad4ab6740415a37. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBAGN9310067.
Lords of the Null-Lines (Foul Play Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96c7c8b15bd23caa5627dd78e85bc9e40a7a82d3d41ee1391d3cf2dc362c1f0. 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/GBAGN9310057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98bdc4dbc829f020905463b850d218ab7fe9151e703bb97609c2c8eaf66b1fe. 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/GBAGN9410048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389abbb6bc9a8dce1c9d3d11e96856421842141e363bbff6d319c284bed74ea6. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/GBAGN9410015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244979e237d9314310404d70a76f04e5b7a809a24a6787ee7f6269d2667ab450. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBAGN9410016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07ae86e52fb2eed7277c2578939fbc5e3b33b77f3036f79ed9a43c2e6e9e7cf. 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/GBAGN9410076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a98d633feb50ba7ef54ea786c98d34d364b5e22b7b4c1987be2b1797aebf35f. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBAGN9410056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc341dfafc6d03ee012851a714aa69e5d55b7a159a3460b9cfac4719b2e0f258. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBAGN9510007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae77d87cf514595999f9c38b29d5b9abc0502df31555fdbb8d406edbafb9a97d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBAGN9510044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227a728b8595059bc4ecaeea42427257e177d5c379014ea1c019f5b171180819. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBAGN9620093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe640d9a9e7bfeb776d82f5ecc0a4dfe765b8e024c6663054282fccd7681a4c. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBAGN9620101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a67c81d10456309f2018a8772f379771c1a53e57dee2bb5dffdb083190430f8. 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/GBAGN9810035.
Contemporary Accousticz Jam (Extended Version) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fcb494a234077c519474321edc3ea19dbe409722debfddb4ddc2e03b0e2946. 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/GBAGN9820047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d403920aa29cd4ecbd74e136d441b336e86f1f069e29bd1015cc8c7b597dd2a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBAGN9820084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd075cbca5f70dadd129c948bb7bc092a49c6db71c2e103347cdecd8aba057721. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBAGN9920133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a25a34e50a7e698befd78227ac8109fb217dbcb00994e5f7356c0b57957dac8. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/GBAGN9920035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e76f30267eae53032913c320c923ed646992063fbd1015b57d674216525b20. 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/GBAGN9930145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cc28999c21c1275fba6dd1a48e839819fc882811863525d133543763f7c9a0. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GBAGN9930149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3d8400a33e06a029d1741d74fc9e93073baa3cb993fa7dc82e3dd0e5cdf79d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBAGN9930155.