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 0x69195191ad67d968dfec1f4efbdd06be424335f9e7fd92b5524e1391f0cc201e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/64a4c831-e2de-4297-afd2-4935c6504e7d.json and https://artists.proofprofile.net/proofs/artist/64a4c831-e2de-4297-afd2-4935c6504e7d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cocaine Blues - Greg Wilson Extended Remix
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 0xb864a0d629d87447016ea35d4246a7655917ee1a322e2bd2a143b253c5c60329. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QMWA21100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2b5facfd293b249823aefc6b208bfe70ee5a3342947692aaff5b442ff1aaa6. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QMWA21100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4cf1079ae05a97c8dcfd97ddbe84a22a86069650f2c2b30b9eb14363cfa757. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:59:18Z), 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/GBCPZ1019308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd39f38f5d18c2ddfef1bc60ffa82e6155f77ed5880f5f92581e167b62caa94. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/QMWA21100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd39f38f5d18c2ddfef1bc60ffa82e6155f77ed5880f5f92581e167b62caa94. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QMWA21100006.
Caméleon Chameleon & Starlight (Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee684609db137a11ad6d2c2c6e17b9f6cf6646038cee5d736440505a7119db9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMWA21100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498c180b45bec7ea267078cc6c61e8b40a2a112845023f4030d101021fd06ec1. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QMWA21100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f2c96aef101e7af2942774168627376e418cbb1b85b1ddd22d383b1a739342. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QMWA21500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b49ec1eafee6b3c563c15657b8f73a822edcc396ebd196f470ba4d11be36ce4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QMWA21500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae08ab9a4f6ce51529b381591a37da2c625523f97de262c5aed6774c8cbe258. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM91861329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf491368281ad2b93da9573f6cedd3dab5d9570722687c4e778b8d7d309ad9c. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/USCGH1994774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae08ab9a4f6ce51529b381591a37da2c625523f97de262c5aed6774c8cbe258. 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/USHM91861329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d375b7d8507603b44b44470e7dcfaba719db666ace3fbe02931d71f5ee6809. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USL4Q1830767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c0422c41a8ba6424f42a1aeb6468ffd147ae2cbdad8a43f9026d18303627eb. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USCGJ1963848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3ee352b619777b8ffaf9dbcf2fe4f2cdd4c37d68e3d68bca5589b93a7f3c47. 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/DECY60700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee684609db137a11ad6d2c2c6e17b9f6cf6646038cee5d736440505a7119db9. 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/QMWA21100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2043fab6c8f87cb0523e0db45ab69cc646e2f12fb529a3fe9a0c6780923e26. 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/QMWA21500011.