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 0x5e75bddefcb51a4726c0d4adef469633f8207316f73479f8cb0cdc9fae35d75a. Chain 2 (Bitcoin): anchored in block 953936 (2026-06-16T11:24:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2055d924-af19-4ecc-bb94-9a811ee0e836.json and https://artists.proofprofile.net/proofs/artist/2055d924-af19-4ecc-bb94-9a811ee0e836.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Passacaglia for String Orchestra (Orchestra Ludi Sonores conductor Andrea Rossi, LIVE in Rome
Divertimento for Double bass, Alessandro Meacci (Mauro Tedesco)
Not So F(W)ar - Alessandro Meacci, Salime Sax Quartet, Senza gravità, Cercando riparo, Deciso
Alessandro Meacci, Romanza d'Estate (Sax & Piano)
Toccata For Guitar, Live, Federico Attanasio
Aria, Suite "Eva E Ennio", Vincenzo Bolognese Violino, Monaldo Braconi Piano