thumb|right| Julius Weismann (26 December 1879 – 22 December 1950) was a German pianist, conductor, and composer.See LCCN. Biography Weismann was born in Freiburg im Breisgau. He studied with Josef
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 0xded353a557ac27d48c3e13963cb97fae11fced4e0fb895569bf71fb211153f50. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4aef0e5-18d1-4a81-8b32-05d75c73b6d5.json and https://artists.proofprofile.net/proofs/artist/b4aef0e5-18d1-4a81-8b32-05d75c73b6d5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Weismann: String Quartets (Arr. for String Orchestra)