Elena Ruehr (born 1963) is an American musician, music educator and composer. Life and career Elena Ruehr was born in Ann Arbor, Michigan, as the daughter of a mathematician and an English professor.
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 0xf0199cd58b70ae33bb3c75905d56d6d90e8ddc4bdc0f1848af47f0be74ec8c85. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5fa13a4-245d-457e-8896-b0dc06e17ea2.json and https://artists.proofprofile.net/proofs/artist/a5fa13a4-245d-457e-8896-b0dc06e17ea2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Elena Ruehr: Toussaint Before the Spirits
The Worlds Revolve for Piano and String Quartet: II. Like Ancient Women
Ruehr: Lullabies & Spring Songs: VII. Stars
Ruehr: String Quartet No. 9 'Keweenaw': III. Central (A Ghost Town)
Ruehr: String Quartet No. 10 'Long Pond': III. Sunrise