thumb|Giovanni Battista Somis Giovanni Battista Somis (December 25, 1686 – August 14, 1763) was an Italian violinist and composer of the Baroque music era. He studied under Arcangelo Corelli between
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 0xad0a163ed895f98d1c27d646a5085e252cf98f6805a02348537a9eaa35341254. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c26a5423-67ef-486e-8aba-db3f1189563d.json and https://artists.proofprofile.net/proofs/artist/c26a5423-67ef-486e-8aba-db3f1189563d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Giovanni Battista Somis: Violin Sonatas, Op. 1