Marco Misciagna (; born 5 February 1984) is an Italian violinist and violist acclaimed for his international solo and chamber music career, his contributions to expanding the viola repertoire, and his
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 0x44a9202f97c39717fac947cfd7d6c4b1ad9e4a39a56cbf878329af2814cd9110. 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/0db97a89-81e9-40b2-bb43-04ef149173cb.json and https://artists.proofprofile.net/proofs/artist/0db97a89-81e9-40b2-bb43-04ef149173cb.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
The Greatest Movie Soundtracks for Viola and Piano
Maurice Vieux Complete Music for Unaccompanied Viola (World Premiere Recording) Vol. 2
Maurice Vieux Complete Music for Unaccompanied Viola (World Premiere Recording) Vol. 1