1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b40512d6838e619c3bf3934a0eab7a016f8aa28f944aae53cd465d8f5d1a27. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c701d0ee-6223-456e-9424-78672dd8894a.json and https://artists.proofprofile.net/proofs/artist/c701d0ee-6223-456e-9424-78672dd8894a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Domine Deus: Choral Music in the 20th & 21st Centuries
Missa Rigensis: Quoniam tu solus Sanctus
Chorzyklus Dresden, RMWV 4: No. 1, Wie liegt die Stadt so wüst
2 Motteten, Op. 37: No. 1, O Herr, mache mich zum Werkzeug deines Friedens
5 Hebrew Love Songs: 1. Temuná (Version for Male Choir)
5 Hebrew Love Songs: 2. Kalá kallá (Version for Male Choir)
5 Hebrew Love Songs: 3. Lárov (Version for Male Choir)
5 Hebrew Love Songs: 4. Éyze shéleg! (Version for Male Choir)
5 Hebrew Love Songs: 5. Rakút (Version for Male Choir)
Fragmente aus dem Hohelied des Salomons: I. —
Fragmente aus dem Hohelied des Salomons: II. —
Fragmente aus dem Hohelied des Salomons: III. —
Fragmente aus dem Hohelied des Salomons: IV. —
Heiligste Nacht. Choral Music for Advent and Christmas
Light and Love: New Vocal Works for the Sonux Ensemble
Hebräische Liebeslieder No. 1-5: No. 1 Temuná
Hebräische Liebeslieder No. 1-6: No. 2 Kallá kallá
Hebräische Liebeslieder No. 1-7: No. 3 Lárov