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 0x931424aeddfd0088265f4d9a25348bbcf4907dbce1ac71a19acb29b288a2e971. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abf566fa-4aa4-4ec7-98da-0845a34d911c.json and https://artists.proofprofile.net/proofs/artist/abf566fa-4aa4-4ec7-98da-0845a34d911c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Manuel Rocca pres. White Clouds Vol. 001
White Clouds, Vol. 4: Mixed by Manuel Rocca
White Clouds, Vol. 5: Mixed by Manuel Rocca
Levitated, Vol. 1 (Mixed By Manuel Rocca)
Revitalia, Vol. 1 (Mixed By Manuel Rocca)
Levitated Radio 125 (September 15, 2021)
Levitated Radio 126 (September 22, 2021)
Levitated Radio 127 (September 29, 2021)
Silent Shore Selections 002 - August 2022
Silent Shore Selections 003 - September 2022
Amortentia (Manuel Le Saux & Db Mokk Remix)
Levitated, Vol. 2 (Mixed By Manuel Rocca)
Levitated, Vol. 3 (Mixed By Manuel Rocca)
Collected Works, Chapter I: Arctic Dawns
Together We Are Strong - Manuel Rocca Radio Edit
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 0x43b5514d4f82c7c11e409b06238135bc7ba01835a919f75ece71d4e2f7a2d0ff. 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/QMFFM2500349.