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 0x3b91222e08051a8f0eb14166c2d7d15091774b3c0acbec676305ca93728c3dc6. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af6862c4-4f0f-4e27-934f-d35975742b6c.json and https://artists.proofprofile.net/proofs/artist/af6862c4-4f0f-4e27-934f-d35975742b6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Prokofiev: The Queen of Spades & On Guard for Peace
On Guard for Peace, Op. 124: I. Scarce Has the Earth Recovered
Royal Scottish National Orchestra & Junior Chorus
Royal Scottish National Orchestra and Chorus
On Guard for Peace, Op. 124: II. Those Who Are Ten Today
On Guard for Peace, Op. 124: III. Stalingrad - City of Glory
On Guard for Peace, Op. 124: IV. Let Enduring Peace on Earth Be the Heroes' Reward
On Guard for Peace, Op. 124: V. We Do Not Want War
On Guard for Peace, Op. 124: VI. Dove of Peace
On Guard for Peace, Op. 124: VII. Lullaby
On Guard for Peace, Op. 124: VIII. At the Festival of Peace
On Guard for Peace, Op. 124: IX. Radio Conversation
On Guard for Peace, Op. 124: X. The Whole World is Ready for War Against War
Il trovatore: Act II: Vedi, le fosche notturne
Il trovatore: Act I: Di tale amor che dirsi
Il trovatore: Act III: Squilli, eccheggi la tromba guerriera
Il trovatore: Act IV: D'amor sull'ali rosee vanne
Il trovatore: Act II: Il balen del suo sorriso
Il trovatore: Act I: Tacea la notte placida
Il trovatore: Act I: All'erta! all'erta!
Il trovatore: Act III: The Gypsy's Son - Or co' dadi, ma fra poco... Squilli, echeggi la tromba guerriera (Soldiers' Chorus)
Vanda, Op. 25, B. 55, Act I: Nazemi všude štěstí je změřit