thumb|Bronze statuette of Roma or Virtus, (Getty Villa) () was a specific virtue in ancient Rome that carried connotations of valor, masculinity, excellence, courage, character, and worth, all perce
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618c4c64e2b32551fe20e27b08ad8c51f30caac47b278de345e0113a3662781a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2d14d27-3511-496a-add0-6faddee3dfc3.json and https://artists.proofprofile.net/proofs/artist/c2d14d27-3511-496a-add0-6faddee3dfc3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).