Tivoli may refer to: Tivoli, Lazio, a town in Lazio, Italy, known for historic sites; the inspiration for other places named Tivoli Buildings Tivoli (Baltimore, Maryland), a mansion built about 18
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 0x4714aae0fcde75e9e330b5cb52e78cd6c33206a9f7e1c43de179e1dce5158138. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b3c4822-8e94-4b21-9a47-5372d3666ad3.json and https://artists.proofprofile.net/proofs/artist/7b3c4822-8e94-4b21-9a47-5372d3666ad3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).