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 0xb526ee2fdd899a31cf64e8246adfd1bfa8108a0f15db47de6cd70b06c39a412f. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fe6bfea-6abc-4c28-9b88-7fe612ed7e6b.json and https://artists.proofprofile.net/proofs/artist/1fe6bfea-6abc-4c28-9b88-7fe612ed7e6b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Chinese New Year of the Dog and Chinese Spring
Forever Lovers (Para Siempre Nos Amemos)
A Place Under Your Skin (Mi Sitio en Tu Piel)
That Kind of Star (Esa Especie De Estrella)
Acoustic Instrumentals for Guitar Lovers
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 0x5d6c71636f5cb76ffaa442054561f7c5a7197500aa4011f72b03b7cd5b3493c5. 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/US5UL1108275.