1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x27702f00155df0dd86bc1cad073aad465c4dd5f3bbe797c5783300cb170e47e8. 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/cf449ecc-3d06-4090-98e8-1204690b8134.json and https://artists.proofprofile.net/proofs/artist/cf449ecc-3d06-4090-98e8-1204690b8134.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 → block OTSBitcoinBlock must exist at that height 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 0xbe08238b4d828cda1caef3ae5d2a972ae64696bed312a03eff24ef7fb532fbb4. 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/USIR20000145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be499befba7aefe5d62fdc3fd6f9c2571c1278952caa379bab3ebc46dbace91. 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/JPBV00500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a8ba9bde1827e0d90a6aad10e5682f3eca10a6406cd7fb6d343890be096ec4. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/USIR10210955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6486577a969be4e93df600bb8e118ae5724ddb1fc4ad947ebcd422e4fa96a2e8. Chain 2 (Bitcoin): anchored in block 957287 (2026-07-09T09:48:29Z), 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/USFF10218231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d5e957b6db9c1dc5917710d5060f218d9b1c54c817e76949e34b39c6b75819. 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/JPTO00300362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b29fe43a945ac8f9540272a7abbea2b80a3180e9e21e0653708a5fc24ffd966. 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/GBUM70602112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399e4b67e7e87b31fe2eaf41ac3bf049e5a92f1f069e2691506bc501b8dfa048. 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/JPPO00840930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007bcc9437c26909857102dc870f984872285c08cbae1f88e1ff200e4fa8a803. 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/USUR10400624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1db23704ebbd10abed458ec4ddb339f5453efc0001d5d47c384454e1aabdb4. 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/JPPO00256870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d87f5041bfca1301242fa23b0545d3b480a8f34688ea94c60eee804f923d50. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPPO01338428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f58dd60d4d17bd9f5765e2fb59bf84cd7fb1826e0c0ac40be36f21cfc612232. 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/JPPO00267310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d33d5491fee55296c8b74d0760c2a3894977dc549c8f285ec10a32ba128cb6f. 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/JPPO00306450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc73eb24bbb74567b1b8ac25b120d4249e258787de54cf41748fef7b3aad1f39. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPPO00915050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66f3d9196cf5a3119f489c6975752a688cf0277143b22ee9c316c302653fa68. 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/JPPO00312500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb960ec629d36bb4e4521ad1c0a5b24a7c13bb2bf700871fd46147610fbcc9a52. 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/JPPO00974770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bd64d7ffb0af93b1c0e22d6f60a5682249fffbdb76ff16d2dd21dd691e013b. 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/JPPO00326950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cac13defe315b58189db4b978b3f785772f2700e35a53bac0d0b1afe9fe98fc. 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/JPPO01024490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75c1b8c9e5b99317214c4e52156438f57d6c0fc4904f62fee9f95cbb44700f0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPPO00419390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1f7a93797461db5640e745e31aa6c515a82a93516a76c9d36957df30f5d68b. 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/JPPO01082820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52c7c513c3dbbefe90609860fc6b917e301d38cb3d77c93d875d7129200ffda. 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/JPPO00500000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e76a172adb795c5e3746667718491c400b60919230858a444c9ab64c8de0d1. 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/JPPO01100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6097e93e841d31af7cb918740e0ef4279fb61f7fafe5ca5a9f3ab2cfb06bae. 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/JPPO00518590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81be2000858a0a7c92eef5eab1989283f3f27a7b3db4acfc01058b749e0621ef. 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/JPPO00600090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fa813f811e515ac7498d54bf059dca11247ccb097075defdf68455409caa77. 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/JPPO01201245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ea0ef67cb401f7f5bffd14317e9cd0e28b5f68fd56c5bd1d9739a7948a704f. 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/JPPO00616400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb084903ddad6ebb6fd2efbc7ceb241898271430dad2c732a2e4f090a0b1654e2. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/JPPO00631830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5744c698648562e079cd7b957bfd07422dba5a55cc42d56e5affb20cfb4f17. 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/JPPO00706030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38240fccbb2cac00ef414883813ed7c6b469fc0dd53c5f6df26d22086e51fb2. 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/JPPO01335195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaac616f7ceb9bce1c249326fc69b28e4d5b7db693b7a272b609e67b96e54c0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPPO01338429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49aeab073b5a6700967b5f6a5f9c5e1aa08595e9ec2ad322201aa719be90b552. 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/JPH961300116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28bbf5cbdda458c43c601a9dbcf6b7a999e78a4309d3e7372a6831c95af73821. 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/JPPO01402940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21dbda93d1fa071cf80410eb0b3e9075d808eec2618e6b6344eb77f20a025147. 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/JPPO02303510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f58dd60d4d17bd9f5765e2fb59bf84cd7fb1826e0c0ac40be36f21cfc612232. 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/JPPO00267310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a716fc231a2183f35e8b09e15e4d3e10129fb56d3c5166470110f5be54642c. 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/JPPO02303511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66f3d9196cf5a3119f489c6975752a688cf0277143b22ee9c316c302653fa68. 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/JPPO00312500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bd64d7ffb0af93b1c0e22d6f60a5682249fffbdb76ff16d2dd21dd691e013b. 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/JPPO00326950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d08c52660069a7d34682b59c3b60d8a7e295ec658a552828a0190379283ee0. 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/JPPO02303513.