Sergio Donati (13 April 1933 – 13 August 2024) was an Italian screenwriter. He wrote for more than 70 films beginning in 1952. He was born in Rome, Italy. He started as a writer and had some of his bo
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d8edc26f73c5bc1517170696826959cae549c161ffdc87b64277bd0ca00621. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b53ae9da-0f54-4bda-a23a-f4e55d163061.json and https://artists.proofprofile.net/proofs/artist/b53ae9da-0f54-4bda-a23a-f4e55d163061.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).