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 0x0ea0258e40988d1e2b6a5a8a2a5e08dc40f5769be9131e2f4b6c94618f9fc04b. 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/ceae47e6-5954-419c-b0d3-92f990bba30a.json and https://artists.proofprofile.net/proofs/artist/ceae47e6-5954-419c-b0d3-92f990bba30a.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 0x05dc6e67ca5efeaaec1f19395b620b2bc0c508b8c5e100b48e5f4977a3136ac9. 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/QZDMQ2150123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d3d4e375bf0354f7a1cf964397fad418e3d31e9f3ec59e19fe50869949ac9a. 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/QZDMQ2150124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c0af46890574cc97b79662216cbafb22d01607b1a952e0fd723d787e2b3336. 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/QZDMQ2150134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abccbdfb20a5b80f711f0b35499e7ba17202f8a2894b7a569bde20470f771a3. 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/QZDMQ2150021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cf09428c559229327ffb2104177d8209fba3896666814c5848f4266fd16c12. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZDMQ2150127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8256e828c5d4f94fb27319adfc17ca73b1154451afd32411a775e804138e5b2c. 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/QZDMQ2150129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1cc7a7f971f73c363013b38bef7a852bc11c55fe6cf6f95e7137f166148ce0. 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/QZDMQ2150133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a839939fe9ce4a9b73da8e85d5dd4321cfe8e43188ce45949a50b4de01aee9b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZDMQ2050046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3835bb9de4cf2ff7206b8d0b390fefdcb42bd629b3b79cd2ff42ebb8699f082c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZDMQ2050059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611608fa1e6fa93ce30803213095919f6721a4d5c7a8eb989d4813f0bd0d67e6. 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/QZDMQ2350118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bbfc64cd502c791fd503ce23dd3062cb3bb29df85881d326342dc3cffcab41. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZDMQ2350129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11a6e5516e307af85d6a4310917152eba7c47eb8b543b344e713f7c6d722be8. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/QZDMQ2350133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a72c92cdf3444f02637cf8f5c360efdddca5f8c87e59b629c1f21f485985e3a. 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/QZDMQ2011301.
Don't Talk (Put Your Head On My Shoulder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe566b0e3637af1c8cac2e4dda97f31968641bead6e83c37b6dcded44095fea7e. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/QZDMQ2150038.
Colemine Records Presents: Brighter Days Ahead
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b2a999d5023f10ac57035c6d6ace02bff5ea5cf28b3ae5abdc3f0289a48798. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-21T17:37:49Z), 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/QZDMQ2017601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71439e6bba2bf1108f8c9ef6bf6a0bb394f1a054dc9ebcd3b35a02a52af3c963. 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/QZDMQ2019701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f5e253dbc043c718a1c81ec9b4aa9759705173ee1a109db735349d9d4a6b1e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:07:50Z), 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/QZDMQ2018101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180a7c8886766cb1f4795ad82a8c5a4007ca3d0b393800f8eb852d38073118ed. 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/QZDMQ2019001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a13293e4088f9c820695ad4aa503418fb7453c402ac5cb41e56394a7ec655e2. 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/QZDMQ2019101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6bc0f3f34f4cf499bf8c8cbec60bacea969d245ead18f5863473f121a98081e. 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/QZDMQ2018701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e01effcf135c0d606031fed7d5414a53b4f176104cbe25deed63eb2f2fe40e8. 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/QZDMQ2019201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73a7e868e5d78428ce4ceb49d61f0ea02bd80e90b7098f6a096139ca168ec19. 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/QZDMQ2019401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9092621fa72dac5cc704530444d7427e0c5947b36bd31f312fc3228c2bf512ee. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T20:52:03Z), 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/QZDMQ2003209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6406c4d1d09efe08e334c76644c2f03813848ff835ed743ba18eb0030991a9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZDMQ2000906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a72c92cdf3444f02637cf8f5c360efdddca5f8c87e59b629c1f21f485985e3a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZDMQ2011301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b7402d551a7c05850c169ddb513ba14bdc70706942a28c17582d717ef7f1b6. 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/QZDMQ2010901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480ff10426d9583ddf63377201e51ead1b67855948530c30fc40b8adc136a000. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZDMQ2011601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bcaaa067296e138e2e1f35355ce23b8ce1d49eda0f277b7c3db0bd92b592ab. 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/QZDMQ1900311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5c84764002a78839fb25b42b46fbed33057766aeb198ec639e156edef186c1. 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/QZDMQ2050116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa6671fbdafee7d4e3cb428d7f54b107dd0e5a8df0f537f280580c69458e6b7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZDMQ2050117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d10cdbc8b409dac1991534ed461931034c2a0160c11c32e0323c615e3f0784. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZDMQ2050119.