Ambrogio Crotti (also known as "Amadeus") is an Italian musician, arranger, composer and producer. Biography After a long life as a musician touring around the world, he started his studio career in
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 0x98678cae739bcff890d49a1fa41b0276b113e9de9c5250f19d8cab4a59e62b30. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0dee415e-e37e-4037-a70a-d783af0ad572.json and https://artists.proofprofile.net/proofs/artist/0dee415e-e37e-4037-a70a-d783af0ad572.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.