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 0x89a9cbead9e123a425fdd27227aee7939eaf1277eb82a10c570f0d582a8206da. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2bf9d8e9-1774-420a-aced-1c8d5ac0e70a.json and https://artists.proofprofile.net/proofs/artist/2bf9d8e9-1774-420a-aced-1c8d5ac0e70a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Confiote de Bits / A Remix Collection - The EP
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 0x0dac925343fd209899a23e60dbc25b6d7ed8fbef9cfbd4cebaaf2cc6968bb1c4. 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/NOOLS1401131.
Mixmag Presents Seth Troxler: The Illusion Nouveau (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3ce743246c3fdab33b57e48c653ce8577f787a91f8bd68d5a449279d42fc26. 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/QMFME2176237.
Wait for Now - Pépé Bradock’s Just A Word To Say Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb078d8954cb65fc9d17d55ca005fe778cec3b37ff441f6348207f7465f4ff9f. 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/GBCFB1900244.
Wait for Now - Pépé Bradock’s Wobbly Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828a1ce56aa8567194779144c9aca629c85e2e2c8e64ccad4469c91ba157998f. 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/GBCFB1900205.
I Am Your Mind (Part 2) - Pépé Bradock Main Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9597ae4f7e8b9535a56eb0b65027c8e3a08b23aa766e7d72a2c9efbd6958f2fc. 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/GBEQT1800372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8161bce6d8e1a45bad3ba8c803935e01d883d862880b584fb2144649d00abf71. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBEQT1800396.
B.B.E. - Big Booty Express - Moulin Rouge Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c04e7d715a3fb235ade3f924649743c8148d3377dce23820d8977031018e1b. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:40:06Z), 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/GBEQT2100299.
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 0x3000ae82dcda43a73938e286abff217cbb4d4d69d3e6d53dd0a3850f6576fa24. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/NOOLS1401123.
I Am Your Mind (Part 2) - Pépé Bradock Acappella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59252f142e83cc8f4009035bfd4e490ae8f1db56ad4d6583f066f9586d250174. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBEQT1800397.
I Am Your Mind (Part 2) - Pépé Bradock Dub Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0aea97648c4a1e7e75cca97cd56514707f2467f1f8939f3f39c807a06e7bdf. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBEQT1800401.