Linda Catlin Smith (born 1957 in New York City) is a composer based in Toronto, Ontario, Canada. In 2005 she became the second woman to win the Jules Léger Prize for New Chamber Music. Smith studied
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 0x6ee1d86f54f0f25376bd07da873b44791051204587c762272844c33045f37369. 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/0e1f1a6c-d88e-4c23-8dfd-12c958ecacde.json and https://artists.proofprofile.net/proofs/artist/0e1f1a6c-d88e-4c23-8dfd-12c958ecacde.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Linda Catlin Smith: The Complete Piano Solos (1989-2023) Vol. 1 - The Plains