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 0x530d0c72015e1202064f74ff58d95a0352f1ac4c063843b1aeeb04eae53b9630. 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/TWJK12200157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4988969d0641c923ce085bf1f33bc301c13cea35f72b553c5380e8803c6082. 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/TWJK12200159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc28e16becf2f543b5c03fec5891a17f99b09d2f83720424d21548b80035c11c. 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/TWJK12200179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c65ee5a17bc480d0e2e66f050da5ff175c4ae9a08a91688cd54aba24f61741. 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/TWJK12200183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58fface9df84ce2f8869b0bb2fc67320730f46fbffb30ca12c4f629f78f0afe. 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/TWJK12200184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd48552b191feef2559625b197ad0bb3a3a20a658de72fa8ad6c24dea37bee2. 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/TWJK12200186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae55b94d04972397ecf507cab9389f440c1c0d4a74bef07b39696489f2a944a. 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/TWJK12200187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9825d05a46488468379468ffbfae534d4516612e976b23f10a0d1b9b60e52676. 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/TWJK12200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20c3f2ea77cde13cabc65599a3a303ba4478663bc0a98415e7050f2a9307865. 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/TWJK12200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3eac590747856f7d598522981b438acd0acade36dee77181ba17db7f395827. 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/TWJK12200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d0c4d8adc6e66ba91809952cc680c1c691acef170663a7669c93af730ffa9d. 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/TWJK12200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3d629022123019bd9d72844020ccb85535743fb45a55f0c50e5f5dfba89112. 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/TWJK12200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80605609f752eddd2477bce3e8da9482a07d1cd16bfb9e461b50f29f3f77492f. 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/TWJK12200099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97e14ce1a3e1f350b5e810f990c6c0f855059ce69633721c078b15a649f7610. 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/TWJK12200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8140c4fb99b0d6201bbf8db5eb137ea0fc77c4d012181fefd21688a5432f6c6. 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/TWJK12200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fb58e77878cdc3585c4ec89a1cbe3e1e206bd0b71b013cb361c059f8f4ceac. 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/TWJK12200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556a45ec59fda77ed9785b0965ad123a010d4f322fc69dd618c505325032c6c2. 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/TWJK12200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5037054022a7ad012c9a1c5ff58014943f0aea6aab93606aef86640ea57b7b55. 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/TWJK12200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297b01d7678c850e8e18f2e8843d293885f5f0c1c8b566c2578553f5e7693a96. 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/TWJK12200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1706a5b74b068a5a06499e437579fd32ef648bae42b00f49d049e37b34a2a93f. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T09:51:54Z), 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/TWJK12200050.