Lino Toffolo (31 December 1934 – 16 May 2016) was an Italian actor, singer-songwriter, author, and television presenter. Life and career Born in Murano, shortly after his debut Toffolo moved to Mi
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 0x84dfba5e8472ee0f103bf35c89a6c4ec201c59fd9009c83682e31e143c8024e4. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e37a3cf-b61f-4d1c-adb1-14f9f0076d33.json and https://artists.proofprofile.net/proofs/artist/3e37a3cf-b61f-4d1c-adb1-14f9f0076d33.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.