Roman most often refers to: Rome, the capital city of Italy Ancient Rome, the phase of Roman civilization from the 8th century BC to the 5th century AD Roman people, citizens of Ancient Rome Roman (g
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 0x7e3b6ef29c0ff1dfdea3ede1ec3b3237ccee98ad37e1850f6d16c0141972bc13. Chain 2 (Bitcoin): anchored in block 953973 (2026-06-16T16:37:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b24f2d4-b1ee-4d91-b7f1-5eabf8e2afc8.json and https://artists.proofprofile.net/proofs/artist/2b24f2d4-b1ee-4d91-b7f1-5eabf8e2afc8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).