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 0x0cc2ce7a28e231ce7a82ce43dd62b5cb1fb8274982f01032b1ae7a1e5b4c6182. 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/8323d1a1-8da1-4752-9eb3-7d2f8fc2b52b.json and https://artists.proofprofile.net/proofs/artist/8323d1a1-8da1-4752-9eb3-7d2f8fc2b52b.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 0xca4844258c2dd80b14184a18d6ebfa8a4e06647f1149f3589c9a06ba58ef0847. 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/QMDA62110317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a41f6aca59b7a18ba4ee6f2bb35e5a9c27a3e35b1988cb80883df6bd0a9a305. 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/USWB12401609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c409434be19805478295e51bd08512c6afce37be56bd17f7b1957f55b91eb1d. 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/USWB12404670.
Today's Country Top New Tracks Hitting 2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410e7330adafcba231beb92704d390ae3b216ba2a4b052b133f75ae63f8b6d4b. 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/USWB12404407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4299cfc8173c498f626aa3e09bd82d02ecccdef91d9cd64af38342e2df37e2. 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/USWB12500605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90ad54550c0bfa6354d3eb88ac7cbb1882c90edbebd3b8630ce341c16735f19. 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/USWB12402941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b5684dfe201c4b02ced4605e9529f3242ab9e9d1ee2e7bbb8f5d41318a7a87. 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/USWB12404473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e2c8154adb710ca8f75ca8415f9c43f5e174f7111f9ed6fec1d472a43c670e. 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/USWB12403711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f534af85b34005894b4761ae974a67e58d41ea7d13e05c5d9f6a57ed75baf9. 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/USWB12403712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3908af0938675f73e3b07e77ade999bfcb37fda8ff122cdd19f385956cf0c1. 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/USWB12404474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f534af85b34005894b4761ae974a67e58d41ea7d13e05c5d9f6a57ed75baf9. 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/USWB12403712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e2c8154adb710ca8f75ca8415f9c43f5e174f7111f9ed6fec1d472a43c670e. 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/USWB12403711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73a0498b26fc4a4bc4e4404d4b23dad7133094396703cfde0a4110087572104. 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/USWB12403671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cb0dd7330f99138aaabe7714f3f7a6efe55d87a661b4e94b2687b3be376207. 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/USWB12401777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc110063a228ff592eb1f430aa74323e9cd90a31f084bda6e2176919c45539e. 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/USWB12401306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2639274ae6717631f55e344263e180437ca762fd786bb696631bb3f0ad7cfd6f. 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/QM7282345856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e1db5231781298d747315e117b676accbb9f144f2e84139b0f74fd8ebe8bb8. 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/QM4TX2337515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfeff8e760fda62fb493d2606f75f18d249bcd0227ccb7afc561be1c5b139b31. 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/QMDA62285382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2477753c8d84a6f67c83b88b88586fbe97a222d2c63b130f7440e2f5db7fa6. 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/QMBZ92291162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbb94e76b254c722ea1103b13eefcf51e433cb2f97ffbdf40bee6afda163151. 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/QM6MZ2219379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b9784a1c802fb956da2862ce21b9e50001db90e77607c464ad7194dd9d1b9c. 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/QM4TX2264945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06100d534df915185553af34960962a4a48f9d46f9607fd011183cc5dea8f0f3. 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/QM4TX2248158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ab9beb42de472ad0e7393363ddab0cfcb588989466233c9298397bb79ec022. 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/QMFME2189334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd1a6f0c4a60c47d6cc1bd6b44257d6c6cc103621d88f1eda977b3813b5a64c. 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/QZK6P2049172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ad3f68e3efda5c7379e6ab4000bd87f2c5db6c498d58e1f49928002b5d5d4e. 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/QZK6P2049173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cf4e1f8c27f7c9dfa60ab02710b68c1bd56c133c11472bb72224517ba12d22. 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/QZK6P2049174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5102025433d19055a25136155ee0dd29a56b667d54d4f6e19ee28246b4d45d. 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/QZK6P2049175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce87a11f81cb8bbb4ccca618ae5078a50212b524a913579f8b281b776b49a7c7. 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/QZK6P2049176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79eabf5c8a000cd6ae5319f1427360cc4f23b4f0d119bc35199b3d264269770. 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/QZK6P2049177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18a67f7f5d04e9c0602560179204f28c717c443b1cfc0a2e771497b7f825880. 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/QZHN41920122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0481a135f3f1231dc6d147ee464cefc810dd788543273eacc1ed07d1fc36966d. 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/QZES71998512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324d865c4ff220af9e20a517009be82101010291b9de947329f6a2a2058e7d0f. 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/USWB12405148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02dc54a92069ce9adec301b2c58ecaed389736bbbb4521c264412b1ab4f63eff. 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/USAT22500867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239fe13eb83166d182404556d1fa99c953e7b0c35e5f80b27798114e02697c04. 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/USWB12500172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ce3cecea263226bbd213cf7189917cfc6a67dedf3ef4a3e472e9c4398f40f7. 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/USWB12500278.