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 0xc73bea1b3fe4085d84a24be64549dbdae0999bbdd31811b337517f7939ef58e1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ee21b18-d6dd-4794-bf96-805a8bbf9b37.json and https://artists.proofprofile.net/proofs/artist/7ee21b18-d6dd-4794-bf96-805a8bbf9b37.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 0x4f72edce829b094be50b8f8a216de59882fe1f822bca89cb3fed47859280cf9f. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZK6F2297014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18045733e731e71eca1050a41a1fa1a09ccd448ea223bce1310f938645ab6ef. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZMEN2226175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d8045eeae4b4cc7d774b7606a0da97c06511502a09a41a633a5c96d531cfa9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZMEN2226177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93850b6bb7c875ef020f6be6fa4ca869a733fed628b7cee447a5206387286bd1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNWS2279726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55239a55d325478c3c966ee5b4a50646b132908309d1ddd7b3a07a50f2c0bbe. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:45:19Z), 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/QZNWT2228935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5574ece255a0bb5be82fde71bd23c6389bb610cde33e92850a84a13cd43d14f9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES92318326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4517b9872e8ed72445a8a0379ada4d2a3368fe221d68dfc0672dd1e3f9d115fa. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6J2346627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4e6d7ba00ad9162e6fa2f065adb4b76df80ee1d65766c589bc153238c20cbe. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:32:50Z), 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/QZNWY2353189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac771b99e3af6008f1ef6b87d3d218b97f44acfc672e1cffe1c47ac7eeabda05. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTAS2321715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e16cda49731373bf1bc017d0ee2bf32857d41f101fd42e2cef9dd6225181898. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZTB52321643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5715119e44487ddddc17366400f325920a060ad6ffe7ce8cf137ed8fb305119. 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/QZNWY2442654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6a3b6bbd4f1069dda1337f0742cc332bbf78362f7362394cce96dc77bc4b01. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QT3EY2458957.
Disco Cone (Take It High) [feat. WENZL] - Matway, Sergio Trillini Remix
Disco Cone (Take It High) [feat. WENZL] [Matway, Sergio Trillini Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d1ee569c0068120efb73c60ee31aab0bf86e7eff09a481f908325292a49092. 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/USAT22403779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82070b865eba92649e05bfd29f3a8b821f6c91f6a08ec49e779f727210b337f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT22400785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c5232303a27b898f475fc4e538e40eb78168427390576abdc90bf7fad5bb9f. 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/QZK6L2261223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6d431a03de6afafdd7a97e3de45fd2fd305b6374facafd58a7b57f43d4e6e5. 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/QZSYP2345189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed95ea537e5b39427087f9e751ef5d67ebfbda71cdab8ceba190cb09e07720b8. 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/QZS7J2331732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82d67dfda1c2a38e685f5f3ad3aac0fa5eac1727946a5e75ac4ad9732212f2b. 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/QZS7J2415532.