Marini (last name) is a surname of Roman/Italian Catholic origin; closely associated with the last names: Marino and Mariani with the three patronymic forms emerging from the same region at approximat
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 0xe8486f2229e7a0ba989f41f78cc14944afd95032a4f49b585149f97125e3824b. Chain 2 (Bitcoin): anchored in block 953875 (2026-06-16T02:12:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/07b645e2-3f35-463a-88d5-afeaa8b25b92.json and https://artists.proofprofile.net/proofs/artist/07b645e2-3f35-463a-88d5-afeaa8b25b92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).