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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec12b55a2d87baba2aff22708865aa4a02546d6cb0607bf4ce40438f654b1d4. 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/b8e82d79-2948-4bb0-8269-22aca47fe88e.json and https://artists.proofprofile.net/proofs/artist/b8e82d79-2948-4bb0-8269-22aca47fe88e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Martinů: Les Jeux de Marie, Cycle of 4 Operas
The Miracle of Our Lady, H. 236, Prologue, the Wise and the Foolish Virgins, Act I: Prologue
The Miracle of Our Lady, H. 236, Prologue, the Wise and the Foolish Virgins, Act I: Keep Awake, Virgins, Christ Will Come
The Miracle of Our Lady, H. 236, Prologue, the Wise and the Foolish Virgins, Act I: Oh, We Foolish Virgins
The Miracle of Our Lady, H. 236, Prologue, the Wise and the Foolish Virgins, Act I: I Do Not Know You, Foolish
The Miracle of Our Lady, H. 236, Act I: Overture - Will You Come In
The Miracle of Our Lady, H. 236, Act I, Scene 1, Mariken of Niméque: Oh Dear, I Must Lost My Way
The Miracle of Our Lady, H. 236, Act I, Scene 1, Mariken of Niméque: The Devil´s Dance with Mariken - Mariken! Mariken!
The Miracle of Our Lady, H. 236, Act I, Scene 1, Mariken of Niméque: Oh, What a Beautiful Play
The Miracle of Our Lady, H. 236, Act I, Scene 1, Mariken of Niméque: A Scene in the Cabaret - In the Bar the Golden Grove
The Miracle of Our Lady, H. 236, Act I, Scene 1, Mariken of Niméque: Angels in Heaven Moaned
The Miracle of Our Lady, H. 236, Act I, Scene 1, Mariken of Niméque: Interlude - What Are You Thinking of, Dear?
The Miracle of Our Lady, H. 236, Act I, Scene 1, Mariken of Niméque: The Play About Mascaron - Mascaron, the Devil´s Advocate
The Miracle of Our Lady, H. 236, Act I, Scene 2, The Nativity: Overture
The Miracle of Our Lady, H. 236, Act I, Scene 2, The Nativity: The Virgin Mary Went About the World
The Miracle of Our Lady, H. 236, Act I, Scene 2, The Nativity: Next Morning the Smith´S Daughter Came
The Miracle of Our Lady, H. 236, Act I, Scene 3, Sister Pascalina: Overture
The Miracle of Our Lady, H. 236, Act I, Scene 3, Sister Pascalina: Pascalina! Pascalina!
The Miracle of Our Lady, H. 236, Act I, Scene 3, Sister Pascalina: The Dance of Shadows - Pascalina! Pascalina!
The Miracle of Our Lady, H. 236, Act I, Scene 3, Sister Pascalina: The Dance of Demon - Ave Maria, gratia plena
The Miracle of Our Lady, H. 236, Act I, Scene 3, Sister Pascalina: Interlude - The Bells Call All to Sacred Mass
The Miracle of Our Lady, H. 236, Act I, Scene 3, Sister Pascalina: In Front of Paradise
The Miracle of Our Lady, H. 236, Act I, Scene 3, Sister Pascalina: Pascalina´s Execution - Oh, My God Almighty
The Miracle of Our Lady, H. 236, Act I, Scene 3, Sister Pascalina: Requiem aeternam
The Miracle of Our Lady, H. 236, Act I, Scene 3, Sister Pascalina: Have Mercy on Me!
Smetana: Libuše. Festive Opera in 3 Acts
Libuše, JB 1:102, Act I, Scene 1: Libuše's Judgement. You, Krok's Illustrious Daughter - I Cannot Join Them (Libuše, Kněžna Česká, Krasava, Lutoborova dcera, Radmila)
Libuše, JB 1:102, Act I, Scene 2: Alas That Between Sons Such Confliets (Chrudoš od Otavy, Šťáhlav na Radbuze, Lutobor, Radovan od Kameného mosta)
Libuše, JB 1:102, Act I, Scene 3: The Procession. The Snake Is not Here (Libuše, Kněžna Česká, Chrudoš od Otavy, Šťáhlav na Radbuze, Lutobor, Radovan od Kameného mosta)
Libuše, JB 1:102, Act II, Scene 1: Libuše's Marriage. Water the horses now and wait for me! (Šťáhlav na Radbuze, Lutobor, Krasava, Lutoborova dcera, Radmila)
Libuše, JB 1:102, Act II, Scene 2: My Uncle Bid Me to My Father's Grave (Chrudoš od Otavy, Šťáhlav na Radbuze, Lutobor, Krasava, Lutoborova dcera, Radmila)
Libuše, JB 1:102, Act II, Scene 3: Heya! Heya! Without Rest Onward (Přemysl ze Stadic)
Libuše, JB 1:102, Act II, Scene 4: The Work Is Finished. But I Shall Remain Here (Přemysl ze Stadic)
Libuše, JB 1:102, Act II, Scene 5: From Libuše We Bring You Greetings (Přemysl ze Stadic, Radovan od Kameného mosta)
Libuše, JB 1:102, Act III, Scene 1: Peace Is Made Again Between Two Brothers (Libuše, Kněžna Česká, Chrudoš od Otavy, Šťáhlav na Radbuze, Lutobor, Krasava, Lutoborova dcera, Radmila)
Libuše, JB 1:102, Act III, Scene 2: He Comes! He Still Remains Hidden (Libuše, Kněžna Česká)
Libuše, JB 1:102, Act III, Scene 3: Welcome to Us (Libuše, Kněžna Česká)
Libuše, JB 1:102, Act III, Scene 4: Did She Not Say That All the Power Now (Chrudoš od Otavy, Šťáhlav na Radbuze, Lutobor, Krasava, Lutoborova dcera)
Libuše, JB 1:102, Act III, Scene 5: Hail, Stronghold of Vyšehrad - Libuše's Prophecy. O Gods (Libuše, Kněžna Česká, Přemysl ze Stadic, Chrudoš od Otavy, Šťáhlav na Radbuze, Lutobor, Radovan,
The Brandenburgers in Bohemia, Act I: "And So, You, Prague People" (Volfram Olbramovič, Oldřich Rokycanský, Junoš, Jan Tausendmark, Jíra)
Two Widows, JB 1:108, Act I, Scene 1: "A Fine Morning" (Karolina)
Libuše, JB 1:102, Act I, Scene 1: You, Krok´s Illustrious Daughter (Libuše, kněžna česká, Krasava, Lutoborova dcera, Radmila, sestra obou bratří)
Libuše, JB 1:102, Act I, Scene 2: Alas That Between Sons Such Confliets... (Chrudoš od Otavy, bratr Šťáhlava, Šťáhlav na Radbuze, bratr Chrudoše, Lutobor z Dobroslavského Chlumce, jejich strý
Libuše, JB 1:102, Act I, Scene 3: The Procession: The Snake Is not Here (Libuše, kněžna česká, Chrudoš od Otavy, bratr Šťáhlava, Šťáhlav na Radbuze, bratr Chrudoše, Lutobor z Dobroslavského C
Libuše, JB 1:102, Act III: Libuše´s Prophecy, Picture VI, The Royal Castle in Prague Czech People Shall Never Perish (Libuše, kněžna česká)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90840e499ed8efffa369226205cb598194357b16b83fcff4ed3395043a8d5ee2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA169525200.
The Brandenburgers in Bohemia, Act I, Scene 1: "But I Say You" (Volfram Olbramovič, Oldřich Rokycanský)
The Brandenburgers in Bohemia, Act I, Scene 7: "You Have Refused to Give in Daytime" (Jíra)
Řecký slovník. 9 Female Choruses with Harp: Megalofrosyne
Řecký slovník. 9 Female Choruses with Harp: Kalokagathia
Řecký slovník. 9 Female Choruses with Harp: Maches epidymia
Řecký slovník. 9 Female Choruses with Harp: Agape - Hetairia
Řecký slovník. 9 Female Choruses with Harp: Aganaktesis
Řecký slovník. 9 Female Choruses with Harp: Thanatos
Řecký slovník. 9 Female Choruses with Harp: Amfisbetesis
Řecký slovník. 9 Female Choruses with Harp: Algedon
Řecký slovník. 9 Female Choruses with Harp: Charmone - Syntychia
Two Widows, JB 1:108, Act I: "Look, Mumlal, We´ve Got You Here… Divine Love, a True Gift" (Karolina, Anežka, Ladislav Podhájský, Mumlal, Toník, Lidunka)
Two Widows, JB 1:108, Act II: "I Hereby Bring the Glorious News" (Karolina, Mumlal)