1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x28e9c30ededa2bff60afdaa53d05266daada7bb2232ca848e38bbc5885a5fafe. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d4da34d-8e0f-44bc-9cf4-5c326fc1adbf.json and https://artists.proofprofile.net/proofs/artist/8d4da34d-8e0f-44bc-9cf4-5c326fc1adbf.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 → block OTSBitcoinBlock must exist at that height 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 0x1e157ab3ca4e09d5eb4cbcb89a351c627b94f95673cbaf955e961832a906e335. 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/ES84B1510289.
All Im Doin' Is Laugh - The Deepshakerz Remix
Tom Cruise Stole My Stereo - Original Mix
A Different Type Of Cola - Wax Worx Remix
Coming Back - Vangelis Kostoxenakis Remix
Ain't Stop - Vangelis Kostoxenakis Remix
What Can I Do? - Vangelis Kostoxenakis Remix
Barcelona 2016 (Compiled by Chus & Ceballos)