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 0x3f93a0c0dae237d0d5df97d2ec0e179d41c91d2bbf4306cc5d8067cc9a074375. 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/8c8561ba-512c-46f2-aff6-6095c42cc2e2.json and https://artists.proofprofile.net/proofs/artist/8c8561ba-512c-46f2-aff6-6095c42cc2e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Clean Sheets / Coffee Mug (Medley) [Rockzone Bipolar Sessions #2]
Clean Sheets / Coffee Mug (Medley) - Rockzone Bipolar Sessions #2
Troublemakers Of The World United (acoustic)
Troublemakers of the World United - Acoustic
One Day (In Your Life) - Secret Affair Cover
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 0x05eb3123f7a1743d77396e3ef78fe4556df184f041653bf7d3d067e6d725bb3e. 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/ES71G2105566.