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 0x61a564d0cde64b8d0d398c735fde82aab8a841227727287d68791ec894796d54. 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/7a6707f8-0f8a-4bff-a50b-cc734f93843b.json and https://artists.proofprofile.net/proofs/artist/7a6707f8-0f8a-4bff-a50b-cc734f93843b.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 0x4f3e3b0e5a40afcfaf0c68c7a3f4371de28a2600df7cb2a85152f39f669eb8a0. 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/GBEWA2303400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd2f6624a379e36a425b4805709909efcb0d75a6eca4808a52e940f0a682f21. 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/GBEWA2303401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2398743fc07f2541dbc2a1e75c98794f3372d3715df67182f87bbe574cdf587. 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/GBEWA2303402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f6207dcc8c5de08dd9d8b9fb1ccfcfd94890b9448e5d239e7054e89c816a8b. 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/GBEWA2303403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5971f3d612f597b052a8e6a6e2d5614ac63dd61a41c097050cc0e0ca3c572bbf. 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/GBEWA2303030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5954baeca9544ca1bc1839094721c9b2bfe3340df77d68f011326ef5da19b8e6. 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/GBEWA2303404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2813de081bac027adbd7ef7988ffd9724f086668fb8f395da17ae5a30b3c2aa5. 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/GBEWA2303405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1658ccabb682f71f59b4fca62e283bac4020d65633c5a752e7d8465eec06412. 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/GBEWA2300620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a86b0746d238f147e8b1edf428c9ca5ff6f02ed16b7594b608cb7c7f793ec60. 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/GBEWA2303406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4568a8113dca6eb4a76c8b189ffd6eea5360d27988eded57b528286899da236. 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/GBEWA2303407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84aeac2b35ce783c063e5b6b919926d9d32d5c78660dfaf6d73276087772439e. 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/GBEWA2303408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde353881c2f2c29c3e6c018f469868e9faad1afcf32a664257c63ec3bddfb4d5. 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/GBEWA2303409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddd6b15ec7b26fbf8fff3c560b15e5d97a1d3c887609fec7d4c1ad5d6233e7c. 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/USA2P2525110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94984423915aa3c1a1d601294978abd9a19c41c26fbbd2991d36204d770ca5e7. 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/CA5KR2514686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e61d8656080ec1dee6a127a83c2042f86ff39ea3da9f09ef573ff0cb7acfc4e. 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/DES232200470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd783a0d083be17224663c8fbf1ba3a68d9f37789c91524c05a99d124f20f2450. 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/US39N2201292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca8c4791f3deb6de269ceadc1fa65a99cbe0f024272405bbba5dd61864d47f8. 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/US39N2201129.
Questions & Answers (Frankie Polari Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760f70ae75f64bdd9e5e5ed50b840cce21a39e1cad048c9536bf6f6b605b1625. 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/ZZOPM2223929.
Questions & Answers (Taiki Nulight Remix)
Questions & Answers - Taiki Nulight Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccb8a9928b54e4b469468f3ce03f9be771149133bbab209c836728fe829de6f. 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/ZZOPM2223653.