Silvio Spaccesi (1 August 1926 – 2 June 2015) was an Italian actor and voice actor. Biography Born in Macerata, Spaccesi studied in a Salesians of Don Bosco School, and made his official theatrical
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 0x03f9393f7886be7c59ac1d31fe16946f4a8cc7837c4ce5428aabe549d8db552d. 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/cc780ee1-4b16-4533-a55c-0311ad9a4b24.json and https://artists.proofprofile.net/proofs/artist/cc780ee1-4b16-4533-a55c-0311ad9a4b24.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).