I mostri (also known as Opiate '67 or, in a cut version, 15 from Rome) is a 1963 commedia all'italiana film by Italian director Dino Risi. It was coproduced with France. The film was a huge success i
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 0x44d993870423fe6b4653f3f6a076b97efc43d9470244085ff31cc99627b026a1. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9acf277d-8699-429a-84eb-904a9abc1dfd.json and https://artists.proofprofile.net/proofs/artist/9acf277d-8699-429a-84eb-904a9abc1dfd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).