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 0x29bf05e12218f071c272598d7eaffea9f4bd87f369ad2a670fda369da64f84fe. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb176e5e-5da6-4578-922b-260bd12b3abe.json and https://artists.proofprofile.net/proofs/artist/cb176e5e-5da6-4578-922b-260bd12b3abe.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 0xf8afbd563e7e73b483753a280afca9309137544c81ff0ce81f81293de41fc43d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLD682401805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5b7bc3f68f39b72cd090ecafa0d5a31a3fbe9de58c9b30264ddd896f9cc619. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:26:32Z), 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/NLD682401993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59be967b9c9151961da60a98e34af97d64c2b57d5ceb8e725eeb008f6260d099. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CAF5R2500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ce24d3005fa8391647a0fe9783b37d56a881fc4acd92329609ab4923f0afe0. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:15:22Z), 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/CAF5R2500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f384124c7b4eb872fe01a85ac2c6d167528323a3802b3a45bc918aee1fd8c43. 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/NLUW21400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd059d9f75eb84a37f6f5f10542858b03811dd8a906ab82b1e660f689c175849a. 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/GBKCF1300276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce76e799069026495990dd1063d01b25583900a688a00ceaa372aff2fbcfd837. 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/GBKCF1300275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a283496319cb2043c98abbbd4560da6ab0238e687967e17a98585c2dbd1122. 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/GBKCF1300293.
I AM - Dimitri Vegas & Like Mike vs. Wolfpack & Boostedkids Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc902623a2772e246568fd171de6ebf24542efddecfcc622805e9b82e7a913f. 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/GBKCF1300296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1c5666dd2fad747008d99e8b421e831833d47d900fa3ffe6a77f444c92885a. 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/GBKCF1300294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6079c506e364ae2adb72c934c1b593039f6db65c2129314d77641bff287124. 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/GBKPL2298619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6079c506e364ae2adb72c934c1b593039f6db65c2129314d77641bff287124. 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/GBKPL2298619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd1fb8d3b128c29e84e8d023dca6a22f4aa39db6fd6084aa96da708f1537cc4. 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/QMBZ91611454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7da1bd5e080b8566fca89e20763ac4e94c4794dc5759dc5eab3869535291cd. 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/GBDLA1290057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61b77f60506e14edb897d4b8e4f53e83de58acf102c2e68d028fe01e0aceb8a. 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/CAF5R2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61b77f60506e14edb897d4b8e4f53e83de58acf102c2e68d028fe01e0aceb8a. 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/CAF5R2300016.
The Sound Of Revealed 2014 (Mixed Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d670c93514adbdeb89063700605c739478e786ed4c04c36b4d87bb94451c24. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:59:25Z), 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/NLS241402082.