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 0x7fa92135c0a9b4dfd457d767c2f9a48ed0ccc38f631377fe2c4955958042d734. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13d5d289-0b0b-4531-81d4-a4e28238ae35.json and https://artists.proofprofile.net/proofs/artist/13d5d289-0b0b-4531-81d4-a4e28238ae35.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 0xc8ac3dc308f75058ac52c702dfff8236787be0798c71aea7521305da9e449957. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/AUZR10700179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b666eb09515950161a33f1cb107049db4db70218e4ee69515112dd71a93f63e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/AUZR10700183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d4e3f8ef2e7872bad681466f62027c1831fbce50d07a059d373ec4bd8043b0. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/AUZR10700186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f9fc1fd409bea9ac03e7e4858b7dcaf981dbde58340de48b03d97ffed722b5. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/UKR6V2031597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc499dc58af2763b41865f5e37d4e1dadaec3a52437831469d238ceeb8dd5a161. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USA2P2122282.
An Altered State of Consciousness - Tetrameth Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269e2c7264698969d407e33617e022d38d8899476bf1d4477193a16a231fefff. 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/AUZR10700515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa084f230a4235d1a3de34b9a08f70e7e3ae70c06d12ef04cc9d176dd15a60cb3. 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/AUZR10700091.
5 RV's & a Pound of K - Kalya Scintilla Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ae3d33031bf4b7ce350a5922696dcf503acdc6fd6940677b2c602181d7c907. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DKZVA1560797.
5RVs and a Pound of K - Kalya Scintilla Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cccd27e7abf37ebf58ae49535fa5b8fe2f62898ab65d93fd1e2c0c9c595de6. 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/USA2P1664224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26855739ec6613a8deaa2efd7bc5b87ab8e9d9c5918496e34ef9b3b6872b2ced. 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/DKZVA1360404.
5 Rv's & a Pound of K - Kalya Scintilla Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf769aef6310c63494d5f630f9c0eddba4fb1b21bc64a6b2825dc00c7d62074a9. 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/DKZVA1360412.
The Ever Present Silent Observer - Burn in Noise remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1d6fccda55c8c64f9147f050e79ba6f3cde585bb530ff15fc8e0a439a4e876. 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/DKZVA2400173.
The Ever Present Silent Observer - Luis M remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1322778851644bf28306f01733a01d078d49e4f4e87d5926d44a64c18a7daaf9. 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/DKZVA2400202.
The Ever Present Silent Observer - Kalya Scintilla remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42068ef7451085f7a395ea4f22d350644f5ef679b256fcfccc0f17af8a814e15. 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/DKZVA2400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da8be353beb3e5121d235b3ce6e7747326443de4a6722f24aafe772d7278441. 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/USA2P2245500.