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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c413ce6576d0f8d029be998159d09884e1877ab3727e26d894cbc6baf821d02. 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/6262474f-26fb-4a55-a24d-8b38ec02e410.json and https://artists.proofprofile.net/proofs/artist/6262474f-26fb-4a55-a24d-8b38ec02e410.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68137de014b352dc6d70e75978ffd6664f36c631871e55d0c7399ea38bac7d6f. 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/QZ5AB2435734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abbef0f9429276399aef024642e0adc711706718442dcff520942d4702efecf. 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/USCGH1493021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea65ea888dd9a62b3fa0dbe33f955936b738fb2f12144fec2a17993354bca61. 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/QZAPG1853327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b5bb9490cc5ea56c4b6cdda7511fbb516ed860e5eee8e73e47182d71b58d79. 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/QZK6J2433572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8802dce3ddcbfb7a600043176a5477e4f8e27396596dc24564d002415df1ac1. 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/QZHN62255422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200fd19cbb7b3520a57d96d8ff0ce380dc4b7f2ba9d88c3b859ea80d80e7f8a5. 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/QZHN62255423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583da829e6bb54171ee9a31c45c70eade0872ff6b9318b84df9b9bcd4a405e71. 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/QMEU32010674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa76204ecdd7888660f9c60582fddfb646794e8710a212b9e825f35d3b574676. 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/QZFZ22041110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e932c494553757e6e3b0c73d0177e5a962ad9929589d4bccac4fe899a79e63c. 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/QZHNC1917557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d760abf890262f4caf2e135438e2cd11891402b61ebf494341b29d4f83fde5. 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/QZES81966558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2b2e5362cf1fa5add087a247ca4a64e04181d13bc707011054b8f13f5a1da8. 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/FRR642000227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc121063e208714f1b24aacf8d4201a60aaf961adf708c74c88700df6df31489c. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T18:10:11Z), 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/QM4DW1884940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c1384ddde27722fc3fd0c5a170fd425547beac3d5935ebe46962febf94f5a4. 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/QM4DW1884943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841828dfc2a2be767b2f1b74af7df449f82f3960529026e60c739af532564f71. 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/QM4DW1884944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf889868eb8c0a005c193b8b6905a4fc7ddcfb5cfe8b35b99b304ad1c0f97778d. 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/QM4DW1884946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a326406cac62fc3aa2ab62175f5691c778e669d3b1898f2cbb828880ab9c837. 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/QM4DW1884947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3531db6db72e955a8ff7a34408d67a1ae100a95e8ea07dab10d6974337b90000. 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/QM4DW1884948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f0c258608efee23d49b332bd2b7629c9d6d860209196629e1ebbad53203298. 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/QZDA82094536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2d2a0a1b751383232a6a0c51da9bf8109d7ddaacb85f464c5995c0e6cece82. 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/TCACR1625043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb03bbd4f89231483345e828948f97481be61279a64a281888b3b3035ea98da. 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/GBHLW1310207.
Kiss My Lips - MikeQ & Divoli S'vere Kiss of Death Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9788b74c37fca9647c805f7238cd6afb75c09fad29d39b50dcbc9e50f7a5b9ef. 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/QMFME1478726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348bb6adb8bf6e49c815a2df0b830c5e5507417059accfa90791abe0d14bcc44. 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/QZK6L2289325.