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 0x2858a206b66cb5dcc100612130f286083318eb5c451cfdbaa8bdb9d01e648e2e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEY472081020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a99c74e1d43424f381602cc6bce2a84fe3491a26c942dcf736fbf5877b62b7b. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/US83Z1928343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667264b09643092db560b6052720e094c047e95ca6d636b3567550fd9c9bcbd6. 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/US83Z1928344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed42e8d78ac0381dc90635f2a996af94642b1aa8c9d596d041ae4a0a2068d4d. 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/US83Z1928345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36bf774ea19cdf6f827d7dc8611177dd9582e6cecd3cb92f3f7469855504e0d. 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/US83Z1928346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91405ec9908033806a08afb3cf177b9182d013decd30c0d2b78667284f85339. 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/US83Z1928347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3daa1212b5bf1e0492b867b262b7444c6aa8af4c15d2aa5e9b581554752e9e. 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/US83Z1928348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91beb4b182544563825e400035c39a241fc410b94de4c4e01f74f76b73f56534. 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/US83Z1928349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01a8af2670b1b034b8d554cff288a06bda18effbee31cba31cdfbf9fa4fd66d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US83Z1928350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d2ba802526dadd0beb10373dec035e1c444cf4c3ce2cb7a4d860abfea5ac11. 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/US83Z1928351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97675ef939d6f0ca79bdf72b7021c71378060d59ff659c5683507c93607dbfd. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US83Z1928352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a551ba878620d166e648bc892746ec68d9661a045c45ea773f0afa4c71c106b. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/US83Z1928353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d423f2c7877bf82ee78bf487d4a8bb0d94e11de040d0b98a46df70ac513df3. 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/SEYOK2106398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3deefba01a401edaa6f48c61df8df2350c8b918fc490dde08124a9db866cd1c3. 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/SEYOK2106399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c7017f0d63cbe6903ffcbfa59f32a63e8aee78ec2d11c965a26dc0dee02a6a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/SEYOK2106403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ca7f4569cfc1cc0b5ec5e275c9edcd4e5fd7edb3f55fe315dd43ee17b1ea5a. 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/SEYOK2106404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e284a830737adc0351bcad67fc5d8369024c7343575e2ec4dd4571aca3bbeb. 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/SEYOK2106405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981667157f3ebaea5f0446816b26fb12c01061158ddc5ad4bbae3f726596fb20. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZMHK2042910.