Scrutiny (French: scrutin; Late Latin: scrutinium; from scrutari, meaning "those who search through piles of rubbish in the hope of finding something of value" and originally from the Latin "scruta,"
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 0xcf38db157c6a92fccd05b5a66b4ac2c1ef68d0f9c4b6c5c95b67e3f519eb4b2d. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4791382-907c-4936-bf06-eaef5edcdf66.json and https://artists.proofprofile.net/proofs/artist/c4791382-907c-4936-bf06-eaef5edcdf66.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).