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 0x43b819e12f27fa4f4ee8b33c2e738a9bf07269c8ec72baee48a67cdfe6d7d4db. 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/7103d51f-329a-462f-a74a-185078df9627.json and https://artists.proofprofile.net/proofs/artist/7103d51f-329a-462f-a74a-185078df9627.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 0x625e72829b9872958849b07601680e704e30d6a578fc2538dce31578ef37eec8. 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/US3Z42400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ce20d295a88b4926c51d83888c911ffbe40c608be1dbb89101a8da3de7a7fa. 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/US3Z42400126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ca985c1e14e6c1721f56f174e4e745ae910248acb0bb16c6662858f6b97d24. 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/US3Z40800146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc53f91c2564dc48bf3ccb40f8d6d7a494291ecc7e0a4f4ae7ceaa935f8372a2. 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/US3Z40407347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142d1d80de2b4609d1b70e3cdab62284703e38d9f4a6a8da67885e6a75928825. 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/US3Z42300246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b2d605d8d211782f32b099f60f0f601190905e5a1600e20290bcb48539b235. 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/US3Z42300247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787c570b4ee4dda3a55ead3831fb0de963074e338d04f354b4e1c7bbc6a92b13. 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/US3Z42200929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7313f3234bd0cea3d173aae15ee846a5cff6fc6da2889272cf10918d413f5708. 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/US3Z42200934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7673c88adaad5c86c67415da843f8f66c128f1c5bc30f31456d0bb1e50e5a2. 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/US3Z41500997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1701d24dd9e1b21c8a5352fb350ea96c4d6af35b5bf580f3ebf709c4d7a3d8d5. 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/US3Z41500999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d7119d0d73e95224b59d929516b6109f3feab1a07c340cd68ee424c68e8f08. 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/US3Z41501005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188bc70738a54a5489a6d207dbe6c58ba101c5e54a9fff842363a9cc1fb8753f. 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/US3Z41100281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd156cc33394cebe31f7dbdc546a55021c8ca2a9feec6ad349520d306c9dde46. 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/US3Z41501416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28be2ab0c026e19f93aefdfebbc3a601a934dff916a595f5ceb3b6751a66478. 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/US3Z41501407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed7b237a760845eac94976842b38c3fcade7f23c170dd020006c39ba9bde0f8. 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/US3Z41501408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec489885509f59a56627204b326c0b770cfc6ac2e98b04807ad784d222a606e. 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/US3Z41501409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd156cc33394cebe31f7dbdc546a55021c8ca2a9feec6ad349520d306c9dde46. 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/US3Z41501416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62f2b7661543300ddb3fc0640938268acb4f86b6f42cefb8e22c26778935f96. 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/US3Z40407410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939b288c9d602fccf25b02e91fda3aa6ea73fb2549e79574213561dfd1c7167f. 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/US3Z40407417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ef01d576b54fcb276b1319096fa2ed0e2170b143e1ffe96f77344700ae434e. 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/US3Z40600116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa277937f496fbc1b3184839386079108b215e1c68f5ac5b311230ae0ab2a3d7. 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/US3Z40600151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fa2736ee947eea6b50a70692ecb3034acdc9eef9fbff66e02dac4d98309aaf. 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/US3Z40600152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2095f0f96fbeb9456a28ccdcf2f593b95574174f9231bd75e6661ba53602995. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US3Z40600153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a7d88e67af0c83bd4cf144ae6718e038aa351ac89892a29b78c5a1c6f93cec. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US3Z40407891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6caf8ec3e57d2150bf96ad73344656f956c85aba0078e81499f8bf4951dfb62. 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/US3Z40407884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dc2d0b5686337461f2ce8c5c525c159af19f5a283eaf990de060bef4650118. 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/US3Z40407400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99903a773c07373618d88fee63a81c273b4f062c3131a9158d4b9dab67d02275. 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/US3Z40407401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e94f50d401fce36b9ad57a12cefe47b2a6f411b968fee88a9c915b0ee83ca69. 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/US3Z40407403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef7b53dea2f4fa3054bdd69738e38b69817faec17de79f040f9e4b42d55e26f. 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/GBWUL2224738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d88ebe0bf09e91d19d737f7ff90ddf1ca3ec86c9ff39e45ba431fd7481b141. 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/US3Z42104176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298300bc80b7eacfe065e3c5b9f3af10958f90ffddcdd723b6a953994c5f0d4b. 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/TCADQ1831590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b78897bf9669d61529114979f8bf978a379726d907843c059a66075af718c5. 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/TCADD1762667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb835c4bb53ab2ddad66d9051f96c6116a236bf4332d4042a260f9374a0192933. 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/TCAAX1139188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7900e44f7649d00e2869fe11dd78bda19b64207d9e1333d076bab69b6a46c2b. 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/US3Z40407398.
Jn Music Group 40 Años de Merengue Deluxe Edition, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d88ebe0bf09e91d19d737f7ff90ddf1ca3ec86c9ff39e45ba431fd7481b141. 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/US3Z42104176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b42158672b88d2fe82989bfb5eb23d9b0f374ee7c5b4a76c26cbda6e83a2db. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US3Z40411013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144608f5cc7efbd57c594e184fb2d2e4e0b87411c8079c2779a56ec20a2c8a5c. 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/QZYFZ2369342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f04a57f3f6f7a885d7a792d9a2a55547ef0dc89bd414f097a034c003bfc837. 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/US3Z40411082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18a804423da194e89e7f71069740eb094ea8f4190c93937fd1d85f3364f4093. 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/US3Z40700192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76f6488e26760e78592b8506d717da498ade4b465a8778251a03bbdfdefad83. 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/US3Z40700110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86f6fcf434c4d644513724bf70686e212e320469752830c59c03f57434af9d4. 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/US3Z40700107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477d3a0622dfd457a77a6b578592786bb124dd0356894068821a5b6eed519fe3. 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/US3Z40700116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406041ca634a85764f4e45db7771ed5e07ac6c89487d0b666748301a5dfc634c. 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/US3Z40411034.