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 0xa2359b7ad49100b0dcbd6b76e6d5d96067a6ab53c2c73584523e3b449b5b6a0f. 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/81fd179f-ef9f-493c-9d92-eb1197908c50.json and https://artists.proofprofile.net/proofs/artist/81fd179f-ef9f-493c-9d92-eb1197908c50.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 0xdde44a93d3b144b65e1524786d401b0e9c6cb5da60b91c3487ac807814aa6ccd. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZFYZ2394134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d8d40cc3c6e6364d7c4d49625243235219c1ef49e9a963023fc6adc0c9f73a. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:51:22Z), 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/QZES72303399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103b3d2d1788e217fc472814592b630f2507c32e6f1c51f56af17d1402329fe9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTB32349261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103b3d2d1788e217fc472814592b630f2507c32e6f1c51f56af17d1402329fe9. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTB32349261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473d237ce2072a752fcd9aa895482fd26efe479df942cc48835ef74101306c9b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTBB2337603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07c211daa06284448cc9513bda3c4e68b63b7b1e8a5d20f5b9d8422e79a3f4b. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:25:41Z), 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/QZWFL2394263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb572865f464749fe27c7262fd3f010499df4247e64a153b2406549e951ef29. 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/QZFZ72453512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da89063d88fe143610d031fe369ec7e21939c51215810770ae9dd11959fb27e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZHN72463888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a5b83aecd829913627b11963b859fb13e1c2299243fc80c40d46efd88788a4. 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/QM6N22444408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd64929e93eac962dd63f9cac1697f6f0299b56a33e0733cf6e1d6cd4c32c2af. 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/QM6P42445053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ca1fc03a1d0f672aec8e95f7f741201969f31aef57b93f9bc7affa45a4066b. 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/QM7282409489.
es lo ke hay (day ‘n’ night remix remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96661def05d907726ba568c3ff18f8d9e99cac8bcc2b032e4409c7c5fac554f. 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/BK4DA2516598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11401b4f2e34c74804e41f57971960a0aba1f178ae2521878997f13c9dc8cdf0. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/BK4DA2546066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524ab86603e0b6160019294b2330734118e0595e8a3ae5975837392afb55508b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:41:52Z), 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/BK4DA2546076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4887dfb5ebb18629c85064030fa2ea8eaaece56b1bef0d7bf4e7c701b2845779. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QM6N22405261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b18e3275bbc2a70656c53687172a45561803a11431591b5889bfcee62ff96f. 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/QZK6N2434441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062fdae829d6bc213167b0dab1fa1114f5f676df8b46eb6a62b945e310fbf6eb. 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/QM6N22405337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6357c2b57002d04f1f4620ac5c58f10ae11035b8b3e5b9fb2767132f5530abf5. 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/QZHN42437984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4801a27497885d0e88dbc020ddbc7ca10f6d2b3e10ba0cf7c9775deeac90406b. 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/QZNWZ2309430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf02ecc5a06eb5154388cec581b3b6587fecc024865678de04a4c277a3406ab. 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/BK4DA2504950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5b78b8b738ef3db7b93fedd5c7afe2c7a686d728225968d8ad890692b24860. 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/BK4DA2511191.