1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x552ce5fa6d17812026f08aa51c145e8a67a1256020d24e92fbe57614ea37e471. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d19c5624-c25b-4310-8ddc-f6c728c9b443.json and https://artists.proofprofile.net/proofs/artist/d19c5624-c25b-4310-8ddc-f6c728c9b443.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Warehoused: The Forgotten Refugees of Dadaab (Motion Picture Soundtrack)
All Earthly Constraints (Original Motion Picture Soundtrack)