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 0xcb2a3ff54ad758ce81f0d2d1fdf5ccf928ce6e2c9ca3cd0d065f4b936dc7f578. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/155102a3-8c7a-489e-b17c-2f9878efb00c.json and https://artists.proofprofile.net/proofs/artist/155102a3-8c7a-489e-b17c-2f9878efb00c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fortnite mit Abbelschorle (Speed Up Version)