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 0x0facf7c2789972e5fe66addeee02caed3bdf7b7b6501406d27cb052405c3d820. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8c6a605-507c-4d02-ab15-455c23aefc91.json and https://artists.proofprofile.net/proofs/artist/c8c6a605-507c-4d02-ab15-455c23aefc91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hells Kitchen - David Devilla & Elisabeth Aivar Remix
As We Become One - Guille Placencia Remix
Siona IV Anniversary (Mykonos, Greece) [DJ Mix]
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 0x4675be410aaa1c8d35013a4c476c5e6c8766b7c927a33b534975e85ad69e5e0c. 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/GBJAJ1302391.
Back in Black! (The Very Best Of) Chapter 4
RAVERS - Impervious To The Logics Of Mass
Abusadora - Unique (CRO), Flavio Martini Remix