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 0x606947691922871e36ecace67d5e3e7732d44605ed032af6c79375edc359383c. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f817f6b3-74af-4955-a49e-d8df3a4d7ceb.json and https://artists.proofprofile.net/proofs/artist/f817f6b3-74af-4955-a49e-d8df3a4d7ceb.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 0xef07bf0ef1cb6d172e721d54177c0e5f099f46b7152071d6c71625b970bebf91. 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/NLC050201300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0b310707c6f0784830512aa02cfff350ea2018040d72228b52b10b393ff89f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLC050600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90529555d5dd42b558ced73d554e91d7760ef518fdc3cceead20241fb27397c0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLS241102593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a03b32f5e76d5bc3035e12325a0f5f17b215ca79b43159393faf6e8947bc547. 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/NLC050200659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaac94664661a5a7838ab1159d495f9dca9461f19eb91f513da0728817ff84d4. 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/NLS241400971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7086dc31226807c6b534dfe3d344c8b267984a3d59143065d44f5ef58f945495. 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/NLS202400069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccb3e8060a5698ecacc6944945b6092eac59ab8ba19ad82084b504519ae9e4b. 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/NLS202400070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab0c40f0769a1474fc504ad6273e01165a7ee07c47b8a310ec712a56594c64f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLS202400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c439226d867adf05cf19a641e5bb961e14165ef8d3f9f24111e994133538962. 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/NLS202400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009e608f752362af4f731a97c4c135c677aaafc0fca57c19b2000a18f470231a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLS202400087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc1b09ce2eca6a25e0ebabb50afe8a82ab6444cc239d9e468e037799e7a98c7. 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/NLS202400089.
The End Of The Beginning - Thunderdome Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fe1a190a3753186d8889cd7e568066fda94524705f3f6b0a629f016a6d4859. 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/NLS202400093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0e8a81bd692428719007d44513a8a8f72385613a93119f7269fb7b6b5c5e18. 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/NLS202400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867761f01f0ca129394a85d3142dff4c9db6ff56ed59bebf738ae04d4a227c5c. 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/NLS202400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa546879001aea672c72db01fe0c45beb3455826e51529f26af5657f66b7d340. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/NLS241400938.
Come As One [Mix Cut] - Brennan Heart Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18935d418c6d424d6dbcd1b371878ca263ac21e636fc445901ce5154d341f7cb. 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/NLS241400943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b9e4d7c50938a7b6ea14154a53a25859619b4d8a493a2adec5513e5be68226. 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/NLS241400945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3864a74105679b2b68c99afb4a4a403df21627790b4c4bf318f011f7a06355. 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/NLS241400950.
Feel The Rhythm [Mix Cut] - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe41ab408c62d33dec3422bf3d0357e058b2cf5eb51196654469a98fe75d94c. 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/NLS241400951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e5d2dae26de8726fcd9c895238810e747224fae78339e78e68e8e29783b8b6. 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/NLS241400955.
Cold As Ice [Mix Cut] - Tha Playah Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56d23713ab2c2bc87e301e0137be216dceb3bd829a6aa3875fec52403a75a75. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLS241400956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dea254cd9425f24940175fcd43d84c9d50078bee0ee8ef5090a9a5bff7d708. 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/NLS241400958.
The Hustle [Mix Cut] - Evil Activities & Tha Playah Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece08126eccb58f8fcd843bff1b13eba8753cbe462eca7d642741aa907e4a1b5. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:35:31Z), 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/NLS241400960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bab12b847af36aa2e63247ec3ed37e2a301acb26d2008064128a0489948c5f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLS241400962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ddb9c9f0792d34c88bba74a6f5d04fbd683634e580c72acc2c4da2207ad74f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLS241400964.
The Beat Is Pumpin’ [Mix Cut] - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16ec1f159420caa94cfa440e8375f4e7964932380d923c9c37f596ac3e1c86d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLS241400965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaac94664661a5a7838ab1159d495f9dca9461f19eb91f513da0728817ff84d4. 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/NLS241400971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028c07bb2af39bfea7166ddb95d90c2001d9314a6ec4bb6e17aa6d88ce3d18df. 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/NLS241400972.
In The Name Of Love [Mix Cut] - Negative A Refix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e424aea1184efb4a148d527800e8f52287ab78195b3cdf964f79043b64970a0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/NLS241400973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28b826d701e33c2c8413076fba862f36d98e24f2f4e6c6e868366372a67f933. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLS240701522.