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 0x05874475d489d71e1c064f5a6965e3d484ee5fa9b8380f3e17316e7dc1e55d9a. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d9fc2bb-45ed-4ecf-89c9-d1f12d919089.json and https://artists.proofprofile.net/proofs/artist/5d9fc2bb-45ed-4ecf-89c9-d1f12d919089.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We Ain't Even Married/Fuck the Labor Pool
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 0x552158480429a5e29a62a7e93ecdb5495722011185963632f12bec3903d71018. 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/USQY51762529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65154b02f6489520b09d8c6ec138cec39630110a8517f26bd994578493713cd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USQY51789222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1d47cbd6db5a9412f7f4d084fed2796d79b7403355e6341f10a586d75a79e5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USA2P1820946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b0e94969d84267aee3a6d74978a80bbd3d0819b565665b232033ec462923dd. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USA2P1820947.
Born Ugly Got Worse (2020 Remix) (2020 Remaster)
See You in the Streets / You Can Live Inside Your Mind
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf3070ff988092cd927def869bf03e3f6506f3e258eff50a9c006fb6d3fa81f. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/QT4EQ2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914cab67d46ced94aff1f73c7fc130d139a7dc160f2442586f7961c53896efdb. 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/QT4EQ2500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346a916607a19acfa7b00b6a49b3fc61fef932d60dbbd5eb9c914850c7cd16b2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QT4EQ2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf3070ff988092cd927def869bf03e3f6506f3e258eff50a9c006fb6d3fa81f. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QT4EQ2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b32ce0c15dbeed28fd6984ec09e45db326ab1a8a2e1155434a1cc8e59e9fa3. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QT4EQ2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb9934d586d421da783bd0ce8b69649d46ebe0b05d1f7bbc3b75b02999216f8. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:17:46Z), 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/QT4EQ2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab299febd5f7d602bb0a89e5007e3d6890d7fd3875abd55eb023ff0dfc569f7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QT4EQ2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914cab67d46ced94aff1f73c7fc130d139a7dc160f2442586f7961c53896efdb. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QT4EQ2500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c85cae48dbe7864c915420ae57e614d8e117994d911a8831c02d651cfc6be2b. 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/QT4EQ2500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848242defdcf7f769a56190a2c2ad44b98521392708840de0aa799b87b5fd6f6. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QT4EQ2500010.