Shirley Brill (; born 1982) is an Israeli clarinetist living in Germany. Education and career Born in Petah Tikva, Israel, Brill received her musical education in Israel from Yitzhak Katzap at the
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 0x5123104bb810723b8dbd21b2de45273f490f971e60624eeae2b25eeb660f4f64. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b070172e-0d7b-4f64-a4e9-6b5827f605f8.json and https://artists.proofprofile.net/proofs/artist/b070172e-0d7b-4f64-a4e9-6b5827f605f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Clarinet Recital: Brill, Shirley – Weber, C.M. Von / Baermann, H.J.