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 0x16851a7c8077272aa7a3c689da36c2eaab368808af2b1c70103f5eb60e2163ff. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba1be0e7-6d5b-4504-97f1-f1daf94511db.json and https://artists.proofprofile.net/proofs/artist/ba1be0e7-6d5b-4504-97f1-f1daf94511db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Friedrich Cerha: Spiegel - Monumentum - Momente
Dvořák: Rusalka, Op. 114, B. 203 (Sung in German)
Martin: Die Weise von Liebe und Tod des Cornets Christoph Rilke (The Love and Death of Cornet Christopher Rilke)
Smetana: Festive Symphony in E Major, Op. 6, JB 1:59
Berlioz: Roméo et Juliette (Romeo and Juliet), Op. 17, H. 79
Stolz: Die Rosen der Madonna Otto (Recorded 1961)
Vernon Duke: Violin Concerto, Complete Music for Violin
Johannes Maria Staud: Berenice. Lied vom Verschwinden
Wolf, H.: Italienisches Liederbuch (Excerpts / Morike Lieder (Excerpts) / Berg, A.: 7 Early Songs
A Guided Tour of the Romantic Era, Vol. 9
Segerstam: Patria / Skizzen / Divertimento
A Guided Tour of the Romantic Era, Vol. 8
Segerstam: Six Songs of Experience / String Quartet
A Guided Tour of Nationalism in the Romantic Era, Vol. 2
Purple Classics Presents: Favorite Overtures
Morton Feldman: Coptic Light & String Quartet & Orchestra