Ferruccio Furlanetto (born 16 May 1949 in Sacile, Italy) is an Italian bass. His professional debut was in 1974 in Lonigo, he debuted at the Teatro alla Scala in Milan in 1979, in a production of Verd
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 0x8e8a82c99b64b8f4344a84305d2f8ec6e7fdc8bc0d44824ce3c67af3682b1a48. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a65fef32-6621-4132-953a-09659aaa7587.json and https://artists.proofprofile.net/proofs/artist/a65fef32-6621-4132-953a-09659aaa7587.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).