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 0xefa254eb5ae27ae5da318b08befcf39a540bd4b290bc7d5aef5694291456c39f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f6e105b-b266-4ec0-824d-34ba32c5cbd4.json and https://artists.proofprofile.net/proofs/artist/5f6e105b-b266-4ec0-824d-34ba32c5cbd4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Monteverdi: The Madrigals, Books 3,4,7,8 & 9
La giovinetta pianta - Madrigali a 5 voci (Book III)
Members of the Glyndebourne Opera Chorus
Il quarto libro de madrigali (1603): Ah dolente partita
Tempro la cetra - (Marini)/Madrigals Book VII: Sinfonia - "Tempro la cetra" - Sinfonia a 5
O come è gran martire - (G.B. Guarini)/Madrigali a 5 voci (Book III)
Il quarto libro de madrigali (1603): Cor mio mentre vi miro
Non è di gentil core - (degl'Atti)/Madrigals Book VII
Sovra tenere herbette - Madrigali a 5 voci (Book III)
Il quarto libro de madrigali (1603): Cor mio, non mori?
A quest'olmo - (Marini)/Madrigals Book VII
O dolce anima mia - (G.B. Guarini)/Madrigali a 5 voci (Book III)
Il quarto libro de madrigali (1603): Sfogava con le stelle
O come sei gentile - (Guarini)/Madrigals Book VII
Stracciami pur il core - (G.B. Guarini)/Madrigali a 5 voci (Book III)
Il quarto libro de madrigali (1603): Volgea l'anima mia
Io son pur vezzosetta - Madrigals Book VII
O rossignuol - (P. Bembo)/Madrigali a 5 voci (Book III)
Il quarto libro de madrigali (1603): Anima mia perdona...Che se tu se'il cor mio
Se per estremo ardore - (G.B. Guarini)/Madrigali a 5 voci (Book III)
Il quarto libro de madrigali (1603): Luci serene e chiare
Vorrei baciarti - (Marini)/Madrigals Book VII
Vattene pur, crudel - (T. Tasso, Gerusalemme liberata, Canto XVI)/Madrigali a 5 voci (Book III): Part I: "Vattene pur, crudel" - Part II: "Là tra'l sangu' e le morti" - Part III: "Poi ch'ella
Il quarto libro de madrigali (1603): La piaga c'ho nel core
Dice la mia bellissima Licori - (Guarini)/Madrigals Book VII
O primavera - (G.B. Guarini, Il pastor fido)/Madrigali a 5 voci (Book III)
Il quarto libro de madrigali (1603): Voi pur da me partite
Ah, che non si conviene - Madrigals Book VII
Perfidissimo volto - (G.B. Guarini)/Madrigali a 5 voci (Book III)
Il quarto libro de madrigali (1603): A un giro sol de'begl'occhi
Non vedrò mai le stelle - Madrigals Book VII
Ch'io non t'ami - (G.B. Guarini)/Madrigali a 5 voci (Book III)
Il quarto libro de madrigali (1603): Ohime se tanto amate
Ecco vicine o bella tigre - Madrigals Book VII
Occhi un tempo mia vita - (G.B. Guarini)/Madrigali a 5 voci (Book III)
Il quarto libro de madrigali (1603): Io me son giovinetta
Perchè fuggi - (Marini)/Madrigals Book VII
Vivrò fra i miei tormenti - (T. Tasso, Gerusalemme liberata, Canto XII)/Madrigali a 5 voci (Book III): Part I: "Vivrò fra i miei tormenti" - Part II: "Ma dove, o lasso me" - Part III: "Io pur
Il quarto libro de madrigali (1603): Quel augellin che canta
Lumi miei, cari - (G.B. Guarini)/Madrigali a 5 voci (Book III)
Il quarto libro de madrigali (1603): Non piu guerra pietate
Rimanti in pace - (L. Celiano)/Madrigali a 5 voci (Book III): Part I: "Rimanti in pace" - Part II: "Ond'ei di morte"
Il quarto libro de madrigali (1603): Si ch'io vorrei morire
S'el vostro cor Madonna - Madrigals, Book VII
Il quarto libro de madrigali (1603): Anima dolorosa
Interotte speranza - Madrigals, Book VII
Il quarto libro de madrigali (1603): Anima del cor mio
Il quarto libro de madrigali (1603): Longe da te cor mio
Il quarto libro de madrigali (1603): Piagne e sospira
Introduzione al Dixit, R.636: 1. Allegro: Canta in prato
Ostro picta, armata spina, RV 642 (Rev. Giegling): I. Ostro picta, armata spina
Introduzione al Dixit, R.636: 2. Recitativo: Sacra fulgescit nobis
Ostro picta, armata spina, RV 642 (Rev. Giegling): II. Sic transit vana at brevis
Introduzione al Dixit, R.636: 3. Allegro: Avenae restrictae sinceri
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 0x16b2d80a0bd22a5355ef4658bf07c884cc11914b1845b66c77c98d6ad781653d. 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/NLA507614303.
Ostro picta, armata spina, RV 642 (Rev. Giegling): III. Linguis favete
Dixit Dominus (Psalm 109), R.594: 1. Allegro: Dixit Dominus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc470ed8a849aa045ca490a0ffbb7a49eab1bac333410034c7d1b1cc8d49ac36. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLA507614304.
Gloria, RV 589: I. Gloria in excelsis Deo
Dixit Dominus (Psalm 109), R.594: 2. Largo: Donec ponam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0f0098d09248785a5bcfe27b92bd65615b75216398eb784597dc4d8cb67b9e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLA507614305.
Dixit Dominus (Psalm 109), R.594: 3. Allegro: Virgam virtutis tuae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8252872d292ba51453503546f4ab0bf8bd9a45e5eda3d04e82d280bbfab348. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLA507614306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020f1ec3f79545848c2fca0b8464657562f10d280f3d51536fbe998c26674a2a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLA507706106.
Dixit Dominus (Psalm 109), R.594: 4. Andante: Tecum principium
Gloria, RV 589: IV. Gratias agimus tibi – V. Propter magnam gloriam tuam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efb6ed16cb3be171847dd66ea4d594f971bc31f473ffd578f598a84e79f3dfa. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLA507706107.
Dixit Dominus (Psalm 109), R.594: 5. Adagio - Allegro: Juravit
Gloria, RV 589: VI. Domine Deus, rex caelestis
Dixit Dominus (Psalm 109), R.594: 6. Allegro: Dominus a dextris tuis
Gloria, RV 589: VII. Domine Fili unigenite
Dixit Dominus (Psalm 109), R.594: 7. Largo - Allegro molto: Judicabit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0984a4d7e5aec62b36a2018bac3943a0cd1f0ef8b4c5be9cdbbe06eb905560d. 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/NLA507614310.
Gloria, RV 589: VIII. Domine Deus, Agnus Dei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf775269ef4e458f91f5c8dd38e78f95efca4735b866ab1923d085639ba9ce2ff. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLA507706110.
Dixit Dominus (Psalm 109), R.594: 8. Andante: De torrente
Gloria, RV 589: IX. Qui tollis peccata mundi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b14ffe8cc214af5132febce6a51d12883c288aea28587c0c8bf3c230fb70de. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLA507706111.
Dixit Dominus (Psalm 109), R.594: 9. Allegro: Gloria Patri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ca2a4b218e41fcb4506ac86e91ab5418d345d5c81fa560132f380431286725. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLA507614312.
Gloria, RV 589: X. Qui sedes ad dexteram Patris
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15b3b3949b03e8a5a749c257dc881dc8be58e2e2aa629f2e690ae9513cb4c8a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLA507706112.
Dixit Dominus (Psalm 109), R.594: 10. Allegro: Sicut erat
Gloria, RV 589: XI. Quoniam tu solus sanctus
Magnificat, R.611: 1. Adagio: Magnificat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80bc1d84bc04f12b136d05b0d84510dea305243146f927960500715dc4edb94. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLA507801911.
Magnificat, R.611: 2. Allegro: Et exsultavit
Laudate Pueri (Psalm 112), R.602: 1. Allegro: Laudate pueri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc419833b1074a45946c0b10a68719710d9decee15183d77ae148722d2f5be919. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLA507801901.
Magnificat, R.611: 3. Andante molto: Quia respexit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0679f2dd373a72a62cc801abfd4ba23fe8c07489e193825d0e7927a87b991e7. 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/NLA507801913.
Laudate Pueri (Psalm 112), R.602: 2. Allegro: A solis ortu
Magnificat, R.611: 4. Andante: Quia fecit
Laudate Pueri (Psalm 112), R.602: 3. Andante: Excelsus super omnes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5e4ea0850108d91f0668fafe9a5eb0cdc9cc01490fe205577849095c4c3b9f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLA507801903.
Magnificat, R.611: 5. Andante molto: Et misericordia
Laudate Pueri (Psalm 112), R.602: 4. Andante: Quis sicut Dominus
Magnificat, R.611: 6. Presto: Fecit potentiam
Laudate Pueri (Psalm 112), R.602: 5. Allegro: Sit nomen Domini
Magnificat, R.611: 7. Allegro: Deposuit potentes
Laudate Pueri (Psalm 112), R.602: 6. Allegro: Suscitans
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Magnificat, R.611: 8. Allegro: Esurientes
Laudate Pueri (Psalm 112), R.602: 7. Allegro molto: Ut collocet
Magnificat, R.611: 9. Largo - Allegro - Adagio
Laudate Pueri (Psalm 112), R.602: 8. Allegro: Sit nomen Domini
Magnificat, R.611: 10. Andante: Sicut locutus esr
Laudate Pueri (Psalm 112), R.602: 9. Andante: Gloria Patri
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Magnificat, R.611: 11. Largo - Andante - Allegro
Laudate Pueri (Psalm 112), R.602: 10. Allegro: Sicut erat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049f2cec8e308dd2c84b4f8c8d04663d2994e73759122dbdc808dbe1032c09c1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLA507706128.
Violin Concerto in E Major, Op. 8, No. 1, RV 269 "La Primavera": I. Allegro
Concerto for Violin and Strings in E Major, Op. 8, No. 1, RV 269 "La Primavera": II. Largo
Concerto for Violin and Strings in E Major, Op. 8, No. 1, RV 269 "La Primavera": III. Allegro (Danza pastorale)
Concerto for 2 Mandolins, Strings and Continuo in G Major, RV. 532: I. Allegro
Concerto for 2 Mandolins, Strings and Continuo in G Major, RV. 532: II. Andante
Concerto for 2 Mandolins, Strings and Continuo in G Major, RV. 532: III. Allegro
Concerto for Violin and Strings in E Flat Major, Op. 8/5 , RV 253 "La tempesta di mare": I. (Allegro e) Presto
Concerto for Violin and Strings in E Flat Major, Op. 8/5 , RV 253 "La tempesta di mare": II. Largo
Concerto for Violin and Strings in E Flat Major, Op. 8/5 , RV 253 "La tempesta di mare": III. Presto
Concerto for 2 Trumpets, Strings & Continuo in C Major, RV 537: I. Allegro
Concerto for 2 Trumpets, Strings & Continuo in C Major, RV 537: II. Largo
Concerto for 2 Trumpets, Strings & Continuo in C Major, RV 537: III. Allegro
Concerto for Violin and Strings in G Minor, Op. 8, No. 2, RV 315 "L'estate": I. Allegro non molto - Allegro
Concerto for Violin and Strings in G Minor, Op. 8, No. 2, RV 315 "L'estate": II. Adagio - Presto - Adagio
Violin Concerto in G Minor, Op. 8, No. 2, RV 315 "L'estate": III. Presto (Tempo impetuoso d'estate)
Concerto For Strings And Continuo In D Minor, RV 128: 1. Allegro non molto
Concerto For Strings And Continuo In D Minor, RV 128: 2. Largo
Concerto For Strings And Continuo In D Minor, RV 128: 3. Allegro
Concerto in D Major for Flute and Strings, RV 428 "Il Gardellino": I. Allegro
Concerto in D Major for Flute and Strings, RV 428 "Il Gardellino": II. (Without Tempo Indication)
Concerto in D Major for Flute and Strings, RV 428 "Il Gardellino": III. Allegro
Concerto for 2 Violins in A Minor, RV 522, Op. 3 No. 8: I. Allegro
Concerto for 2 Violins in A Minor, RV 522, Op. 3 No. 8: II. Larghetto e spiritoso
Concerto for 2 Violins in A Minor, RV 522, Op. 3 No. 8: III. Allegro
Gloria in D, R.589: I. Gloria in excelsis
Flute Concerto in G Minor, Op. 10, No. 2, RV 439 - "La notte": I. Largo
Flute Concerto in G Minor, Op. 10, No. 2, RV 439 - "La notte": II. Fantasmi (Presto)
Flute Concerto in G Minor, Op. 10, No. 2, RV 439 - "La notte": III. Largo
Flute Concerto in G Minor, Op. 10, No. 2, RV 439 - "La notte": IV. Presto
Flute Concerto in G Minor, Op. 10, No. 2, RV 439 - "La notte": V. Il sonno (Largo)
Flute Concerto in G Minor, Op. 10, No. 2, RV 439 - "La notte": VI. Allegro
Nulla in mundo pax, RV 630: I. Nulla in mundo pax sincera
Concerto In C Major (After RV82): 1. Moderato
Concerto In C Major (After RV82): 2. Andante
Concerto In C Major (After RV82): 3. Allegro
Nisi Dominus (Psalm 126), R.608: 1. "Nisi Dominus" (Allegro)
Oboe Concerto In C Major, RV 447: 1. Allegro non molto
Oboe Concerto In C Major, RV 447: 2. Larghetto
Oboe Concerto In C Major, RV 447: 3. Minuetto
Nisi Dominus (Psalm 126), R.608: 4. "Cum dederit" (Andante)
Sinfonia For Strings And Continuo In B Minor, RV169 - "Al Santo Sepolcro": 1. Adagio molto
Sinfonia For Strings And Continuo In B Minor, RV169 - "Al Santo Sepolcro": 2. Allegro ma poco
Cello Concerto in C Minor, RV 401: I. Allegro non molto
Cello Concerto in C Minor, RV 401: II. Adagio
Cello Concerto in C Minor, RV 401: III. Allegro ma non molto