A test drive is the driving of a motor vehicle to assess its drivability or roadworthiness, and general operating state. A person who tests vehicles for a living, either for an automobile company, aut
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 0xe7f4917a9753ee30e4e6611f5cf32742cdc6c6523cd0c018a12f7e534c93acb2. Chain 2 (Bitcoin): anchored in block 954027 (2026-06-17T00:55:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38fca256-712f-493e-aefa-53f13ef60fe7.json and https://artists.proofprofile.net/proofs/artist/38fca256-712f-493e-aefa-53f13ef60fe7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).