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 0x9730772ae1cd4883d2ca5d62d193cd346a1988310d891adb8f0f7e6fcad4b77e. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/094d2eea-d459-4e6c-ad0a-747d4b962c5d.json and https://artists.proofprofile.net/proofs/artist/094d2eea-d459-4e6c-ad0a-747d4b962c5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Long Lonely Nights: The Lee Andrews Collection
Street Corner Symphonies - The Complete Story of Doo Wop, Vol. 6: 1954
Ian Levine's Northern Soul Classics, Vol. 10
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 0xab4cb711f58bca6fb344c7623fef7819cd0d7eaf06ea81fb696b43c42cb3ff9e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USMC15749999.
Soul Music 02 - 50 Hits From The Early Years