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 0x538556f20b82fe4f04baca4173af7919a5cda89f98c4c9827d3d871d6e8993bd. 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/43221a38-f4e1-4251-a194-248d252dd005.json and https://artists.proofprofile.net/proofs/artist/43221a38-f4e1-4251-a194-248d252dd005.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 0x43f0cf5429b5116f12015c500ace3e507bc526509dd33019a6826e9a9b6dc483. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/QZAKB2131971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b2bee7e44122896f6ce215c452915b74e0da695855f4fc45390a9a7fdf90e2. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZAKB2131965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf732417a79dbf86b035b0c92a3b5084a53f733d1911befd3bf41fdafd09daf18. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZAKB2161432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d99e7b4ef761022045f0486f422ef2f9ab56ff570858f1b0e06f73c000b9ac4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZAKB2166408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37d069f988bb2f279cce4b0cf26263f70b43622ec2b0f6b91b8e1bc84d13901. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/QZTLA2360328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37d069f988bb2f279cce4b0cf26263f70b43622ec2b0f6b91b8e1bc84d13901. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZTLA2360328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cca00e9be6da0f10789e97bff4b9ce0fd5ec4fea04ef096d6d1dcc70faa1c9. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZTLA2424803.
Maybe This Rhymes With Orange ? (feat. I Set My Friends On Fire & Ohtee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0130e30409d242397db4c53f531fde6fd5755541a51b942d55b2fe86712152. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USLD91768618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7ad69c66f194c4cdd6496a96b3d6e9128fbbe128db34d1b89ee2011b901c3c. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USLD91768620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e66f485a6ad28deaabbeb77cddcde747537e1c083ac5df826423e9996ca1a9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USLD91768621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3827fd5b36b8d1affe22b881ccf3aaecbec0c5f0cb986f3a67eaba1f91e9611. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/USLD91768622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a11adaab503e6f757a508b636ee05c5252af514dec79c423acad84117e38d2d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM24S2501573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47dea499072e768025d0b62e6398bd4557e269bc15e0c340ed3c69c77eea875. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QM24S2501575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc503978f050eec3dce2c6f432773c78c4bb0c2980808ca23ba25559f57b94c7e. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QM24S2501578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecab3dcab86b781347f48e2674124c152d7c573a431750cb525eee4ea6dfae5e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM24S2501975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38ed7e75a722f62dd24ee7b82430846555c40a32def203241b980f960461da1. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QM24S2501576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47dea499072e768025d0b62e6398bd4557e269bc15e0c340ed3c69c77eea875. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QM24S2501575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27a90bbf3fc001f9684492d72f373c6c553e78b97123e6d00e09960158e34c4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QM24S2501577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fe6457c618a6b406feda4c6273547aee1b8471bb71d53725d97a66a8ac71f2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM24S2501974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda25e99288ebd5fb04ff557953801dd3f7d53da61bc6535eff55ef7e0a7d42d8. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QM24S2501973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4b08ff02da2f19cdc45de09c18c8129f59f018de017462794d827098b5d5fc. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QM24S2501972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aaba46a320aa9dc4bdb1b0e7c644a53a8536d2a1e25956ca1331d5f056a1cb3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM24S2501572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a11adaab503e6f757a508b636ee05c5252af514dec79c423acad84117e38d2d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM24S2501573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4900a4868d1a910722f86d19442e8492fe4bf7a22833c380df7e7ff06f9ae28. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QM24S2501969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc503978f050eec3dce2c6f432773c78c4bb0c2980808ca23ba25559f57b94c7e. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QM24S2501578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b908889c4303cf6069b2f3d055aed6568a88a88c87bdce3a115e9a9ef7e0170. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QM24S2501968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcb0b144bef259a4194046201f46f8a344ed60c7a4886595167adef580e3709. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QM24S2503553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2fbd0f3766f8996c9ad68ed281decc0276184d87646fd21d2825d2a84a0648. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM24S2503552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2fbd0f3766f8996c9ad68ed281decc0276184d87646fd21d2825d2a84a0648. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM24S2503552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a858b56dcd598b289baa5d7b972979d7ddab392690a6e72c00e8df5ecaaae51. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QM24S2503524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c35502fac2b7bd4f5adf32b85dae3b9a9e3f8cfdbb697d357d54cff9ba52f7. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QM24S2504173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41415e79fff17876ff680fdeacb579da906fc25c29f6fba660519f3e4623dc0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM24S2504123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b27e10bf206b19ad427840afa7e94d548522b103a8ebc81057f7666adb0b390. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/AEA3A2089791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779c44c8c4e99a2374b30e23115c04bb8bc251e71faf810e8382a964076930df. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/AEA3A2094310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aece192a74ab96324db3e28e4f053e4b0d12b6f4cd3f863327357fb9208272d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZB4J1862436.