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 0x257c8c8e91835ea868b9fd1e590a3fae1943ac27b45e10e4ab46f213a72c0cfe. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f507a1c7-8d4a-430d-b099-53345aa9aac9.json and https://artists.proofprofile.net/proofs/artist/f507a1c7-8d4a-430d-b099-53345aa9aac9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Phantasmagoria (Unabridged), A scary story, by Lewis Caroll
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 0xfd2e631d50d8b9da014d8b4efc56beba0b66ca469be63777ec7b0971c36622ae. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/HRA048435340.
T.O.Y.S. (feat. Lydie Brian from Redlie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301164c448a970acbb8f2e0560444380d99d8e23e86106de68c7d61e73712443. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HRA048306973.
Electronic Jugoton - Synthetic Music From Yugoslavia 1964-1989
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca6d27257348b71bbfd0c4a62cdb1c62ab9df53eae3949dd13b751025b9d73f. 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/HRA041479918.