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 0x02ab1679e83ed175766a0f7e6ab9b0b366a13d29dc67c437aa927d813b932751. 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/47ff04bb-9e68-4505-ac10-2756143f77cb.json and https://artists.proofprofile.net/proofs/artist/47ff04bb-9e68-4505-ac10-2756143f77cb.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 0x785db192b53b395799df3203d5b17bf9d3ac69ba3572580bf121cf5ddf7692a8. 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/QZTRX2280165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0661c0f095f904a8301e73a14abe10d6c37a2db4a44d0d6dd26ecb099ba31f. 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/GBWUL2215970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89c72c6c9195d928c7d37a49598d5386c6f709fcdcf5896f986eba856d0b97a. 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/QZTRX2296225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f9d1b6e5d93fb0b73c0c488b6e5e04ecd87830a21725a28d1b1ff93da13b0e. 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/QZ5FN2063368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3387e1450ba3040916479f45f453c5cd8272252cb9a8e5f2288929bda13e28. 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/QZTRX2296227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6206b4256567f14e60ffd5fc3c99755dfaf3c90681626e32b1008a98257088cb. 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/QZTRX2296235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91cc23215a2648dc0709d73a9b133163b03722f856fd109380db1f499344085. 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/GBWUL2270834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bb857f8d1d972dc17801276f3ee591aa400897c1ba4ea124469be21f2f4865. 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/QZTRX2296239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffd85997992a9a847e4b322be296f38da52d0d0ee32c03930bf4ae96584ce73. 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/GBWUL2298421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5ad52958599edbce109396d1e2ee23b51c7ca2a1261043eae900f8cccfede3. 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/QZTRX2296240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e71db65bd0e626a3766048fed583c2dcb8aa4ed645dd2132acfa5ac2867eedc. 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/QZTRX2296243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a29f22c32e9d303ed4968e2878167ad452666619d4d293a7fb2adfe48c11a77. 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/QZTRX2296248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f1ca7911f81b05e49f1baa2dff95b30f60243e406759e8e5c1d11430d433de. 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/QZTRX2296249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b5db037228259b51f55e9b30076f25740435efa8ac65bce3790d267e98c024. 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/QZTRX2296250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0803ae56b22542983c97176e9b1b8a6e749b241f78c5df302c5fa0618d05a0. 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/QZTRX2296252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec8cb54c94163ffac3297026e17ce5032c74cec8151b455ecffecaa6d86051f. 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/QZTRX2296253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17717b530cb3246e33ea9e54461e6f6c6ae9b9e172365b2f730b8e64c923b7ee. 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/QZTRX2296254.
Green Brain (with Lee "Scratch" Perry & Yaadcore) [Subatomic Sound System Remix & Dub]
Green Brain (with Lee "Scratch Perry" & Yaadcore) - Subatomic Sound System Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12a17146e0b2e75a69accdef856d78b7c59229106c4afef1b87dfef39b04c04. 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/QZTRX2316419.
Green Brain (with Lee "Scratch Perry" & Yaadcore) - Subatomic Sound System Remix Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8910fdef7f645e3e58f79c2e68a07f37c6283a37642b2424061d98bf2395e2e7. 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/QZTRX2316461.
Green Brain (with Lee "Scratch" Perry & Yaadcore)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4e5464a8d86e6c757b8a7a02b7d2abadafb84898fc7aa3757bd8f44eb1d003. 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/GBRKQ2166003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4e5464a8d86e6c757b8a7a02b7d2abadafb84898fc7aa3757bd8f44eb1d003. 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/GBRKQ2166003.