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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2136f648a6f4f1f41dcca7167cd7f2385d57c385efdeaec5d0325d8bd635991b. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d11b1c6-d7d5-4bef-8a6b-22cc8ef8f0a2.json and https://artists.proofprofile.net/proofs/artist/0d11b1c6-d7d5-4bef-8a6b-22cc8ef8f0a2.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177c7d98e38058cae0742e4a2a155fcd239cf3aff82127a5b8e49dd85dc1c5e3. 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/HKD252300125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ae4586948aed7d4a1668d3fa5a2e773fa4aa082266170b18ae05918cb22691. 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/HKD252300126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3418639b68ee7edc3a6a010cdefa44ac242be1142ae00f38168200bc52956843. 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/HKD252300148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccc5e37b1be174b7dfcffc9c804bfb09806b877edbedea8e9147c8c1790803c. 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/HKD252300127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5436fe053279713e73c2c837d9e7cf08769b228b92f0a42efde4a3074643d19. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/HKD252300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb791f15ada6804b3cd37aa25229ad69bfadd995a9c7362440e056d7b4d29fe52. 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/HKD252300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68cf752a674d3ce786c58af79628c2d53de8820e3171a95028ed1c387b591f6e. 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/HKD252300150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd227246a88ae52a85c702d243801c48cdbb1d6f3ee36925235709e1dd22a2f65. 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/HKD252300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc173c8b698b2c7a8d62eeaa588b25a9ce52c5159ae40158a82a7b32300c05136. 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/HKD252300151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9f0eddfb5b9faef011fd9bf932466008329e57bf6201dfdc2326826c3e9447. 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/HKD252300130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cbcf627546496f770628e3a661f815dfd4153458b0e7230d2c2fd5268d185e. 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/HKD252300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1b136b8d90cd114e78747e7e00963d7dc8c8ee321cfd41bc906df6526eec57. 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/HKD252300131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea25c367d73c00bc896c7b5690405e1eff27438db553ef3ec19c57a555f97be. 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/HKD252300153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73f68e10040f073c8f107253fc535f41063138fd8aa7aa1084faab23bcfdbb3. 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/HKD252300132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c76b64b56c17c87130afb074d2166068cf447c0ff3476f618b245dc1ba6393. 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/HKD252300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf5163104a8d6d2dbbbc50f3ae0a0ed9252c4df5ff0495253544db0d12502c3. 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/HKD252300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8959beeae049fcf6992bce30331edc2c3e357e48bd8d8e969baf417d67381feb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T14:18:12Z), 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/HKD252300155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071d1e7283bc6d821fc3133d1101c00f61442bd5f401e6e87fe5017bf28d9584. 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/HKD252300134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14e367ff869b78d1b6eb72fb0b2bc361ffc3ea6cae8e8bd5ffdcf5a20b27d8f. 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/HKD252300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a656f7fd178ead399238aa701e8dd42d683afc68c96bb75ee4786278929a43. 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/HKD252300135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2df1335123357f9054195529fc76273cbcb62d92ef77573d5714514df6e499. 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/HKD252300157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f1c0c4f494fa859aa8764276c088b888f9fbe91543248f2c75edb9ed1daafc. 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/HKD252300136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74e22242c8f94e23a424fbb026abdf5d497c127d4bbc5192814724d7cd42bdb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HKD252300158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec990d78391838188c17db6bb1efe64b6026d1560a5d70cc5e28fdc52c48dd4. 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/HKD252300137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c56387dae9d18e7e4305ed7aa98514bb1b93bd7159b644ce2c4b8883f669d5. 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/HKD252300159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bab785379f3e87b4d326e7b5b94478817f1a850effff3e6fb09b744f592db8. 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/HKD252300138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6713ccf8c33db2b68c17e18e1663c9f1d3eb16075edf59ef90ba05d3358b3f84. 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/HKD252300160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80448e85c6e66de9eab1edc5d29ede34b2b56aff3fb11ce6f5c0c8407b2dd55d. 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/HKD252300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0482f04f01b7b9e1484cfda0e2c73770c56157bdfe7fccc65618bf24dc9402. 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/HKD252300161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0891c73222700fad05e16098e8fc1d19298ed40c167fb41f98cdf4a378d1dd0d. 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/HKD252300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df41529dfac47ba6f42e3493333c0eed9f506538b6fb8b67b871b5c3a945ead. 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/HKD252300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234ecb3e86847239fcd44dce6859abe2674eda6bc9ee3531af8a61039f1dbb8a. 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/HKD252300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b9c2a4676a71f77529245154ca4e8eb10aab9edddfed3ee7c9ea7eac9c3df4. 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/HKD252300143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe045466c4b5c251c2b9dae22e2387953e35da8b698a7d7dfb063d0a0031b2dce. 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/HKD252300144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a8f441094343d958e06856ceec7d6f77ef18ad8a355462726bde4ea6a73402. 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/HKD252300145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88c692546754ec13496f3924549d2d9d62af5b82a432b7fe276608f0843a07b. 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/HKD252300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648e6f6341010d9ad31b41fa802380c7272a8e2fd2758a0e1b0d1b508081d759. 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/HKG732278267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068bff1e4f2dbd7e5ab4ba938a8d379806f3a996189c014697462910e2d6ca4f. 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/HKG732278268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de524f4bb73013fc03122642545400c05923f9542d32520322fab2b54e43e04. 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/HKG732278269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf6cc15512d9ddacfbd6972690777200080181b1519477673f45cf1f8fa3c80. 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/HKG732278273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4383d7a660fab8f6a24214bf2eaa726cad220cab99daaf6ad299bd593ed66b01. 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/HKG732278275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa354242e628d19bb625310c39c7efd6a2a6f43ad7b9f2986b456451e4b11307c. 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/HKG732278276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bfdec2b747045159bf953fd8ce559dffdf503023d2bb1692f3f43ebcff1218. 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/HKG732278279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfe2ffb51365652618588eb50ed2f5e9f1b3dc38fe00dece117967ee4a4f8f7. 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/HKG732278281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ea82bf6a0720752c7b725c087db20a0db863dc28b5db0336a947b94fb9d6b1. 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/HKG732278283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab71a2b6031d876030abb29054440d3603021ff69e5762c1abc608c227b155e0. 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/HKG732278285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b0222ce70dd25fe9386825ce22ea4a2341708bed180c715fb20fca744a9ff6. 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/HKG732278287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8dba8277c0bb180427e35f5cc57c61cbb247ae5063403671a7f546d1a0e0b8. 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/HKG732278289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0ace09b38a0342714cac9b6af1f382c416175b4642cfbda3eee03f89da8584. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/HKG732278274.
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 0x9f3bac2f7931acaea5961f5d98be2262395adb2a724bee80cbfb0c180df08500. 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/HKG732278229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4e99329eada6b62c15ab28b080e827506315dd0906221ce7f0f1c138deb4f6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HKG732278233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22a46bd591bceda827b62a522bb8eb91fa85a31df422c4c1ea33f680ec09507. 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/HKG732278245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4df6d8ecca40d9b289d7ce66638eafb879c0889b975817eb3e4231776dfc8a. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:18:46Z), 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/HKG732278225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089d7d5736d1c7dac2047647a1d49aab9cdaf6337189d6c4e551e81a71744f50. 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/HKG732277879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d15972f620ac822b46b3b1a919d25b364e3c3f57e76cf86f8ae3956e798f87c. 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/HKG732277883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c04fc46899bc35471caa103874caab9b8277557ba2538bda36e9db6e83a48a8. 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/HKG732278145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bd3b60c61ce05c8e60baa53c03a634a5820a12c1b327f2ea5d6c5236d739a0. 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/HKG732278151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e883f4cabc142a722c717cc168e95e5f0c80b7feec049d6f4cfac6e98ab908. 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/HKG732277727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd130862d1761d165504a96f01a1dd219f6b3ff10685ae40761b39cbbcd35b7bc. 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/HKG732277731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd923376a8be18f805c70963d4c7940f91d1fb147213a0931ff0c8af759dc5ea. 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/HKG732277733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314d42ca2d4a36b9f20dd2f0e0bbeb9bcc131849811f325274d556375f699908. 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/HKG732277737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598daa84806b5c5de769751a9fbe92a2f443f684c127055993382ea82303bb6a. 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/HKG732278197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7842c9bf8c6b7351cac1c4c337b00904aa97d6fbbd67bd6ca544fff73c65f5. 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/HKG732278199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8875c306aaa0a0d78be174bf839c4b805a278b469b4338cde0eb2266b8998f2b. 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/HKG732278221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38647eddbf6e79dafa5bead9dfad45f2acc326bcf6a7bc35225a78fdcfa543ef. 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/HKG732278223.