Giuseppe Ferlendis (1755–1810) was an Italian oboist and composer. In 1777, he was appointed oboist at the Court Chapel of Salzburg, with a yearly stipend of 540 florins (higher than that of Mozart by
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9800b8184e274eac93b5fbfb37b98035d5cc42e4d0c3a311ea57a83804e3ace5. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f49b7f7a-6c5b-419b-a532-cbb41f3d209f.json and https://artists.proofprofile.net/proofs/artist/f49b7f7a-6c5b-419b-a532-cbb41f3d209f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ferlendis, G.: Oboe Concertos Nos. 1-3 / Trio Sonatas Nos. 1-6