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 0xe187654220f2d5a59bd72701edb9b27e3dfd5641e0e1ddbbcfa30d13480100c5. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2c39cb4-fb7a-491f-95c2-5a9bb6f3787d.json and https://artists.proofprofile.net/proofs/artist/d2c39cb4-fb7a-491f-95c2-5a9bb6f3787d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Madrigals, Book 7: Tirsi e Clori, SV 145
Scherzi musicali: De la bellezza le dovute lodi, SV 245
Madrigals, Book 6: Zefiro torna e'l bel tempo rimena, SV 108
Madrigals, Book 8: Lamento della ninfa, SV 163
Madrigals, Book 8: Su, su, su, pastorelli vezzosi, SV 166
Madrigals, Book 2: Ecco mormorar l'onde, SV 51
Madrigals, Book 7: Amor, che deggio far?, SV 144
Missa Simile est Regnum Caelorum: Gloria
Missa Simile est Regnum Caelorum: Sanctus
Missa Simile est Regnum Caelorum: Agnus Dei
Missa Petre ego pro te rogavi: Agnus Dei
Missa Gaudeamus: Canto Ilano / Plainchant: Gaudeamus Omnes (De Victoria)
Pedro Ruimonte: Parnaso Espanol - De Madrigales, Y Villancicos
Missa "O magnum mysterium": Missa O magnum mysterium: O quam gloriosum
Obras de Musica: Diferencias sobre el canto de la dama le demanda
Gaudete (arr. R. Mallavibarrena for vocal ensemble)
Introitus: II. Te decet hymnus Deus in Sion
Offertorium: I. Domine Jesu Christe, Rex gloriae
Inclina, Domine, aurem tuam (Arr. for Organ)
Inclina, Domine, aurem tuam: I. Inclina, Domine
Inclina, Domine, aurem tuam: II. Deduc me, Domine
Inclina, Domine, aurem tuam: III. Domine, Deus
Lamentabatur Jacob: I. Lamentabatur Jacob
Lamentabatur Jacob: II. Prosternens se Jacob
Miserere nostri, Deus: I. Miserere nostri, Deus
Tota pulchra es Maria: I. Tota pulchra es Maria
Tota pulchra es Maria: II. Vulnerasti cor meum
Dulcissima Maria: II. Audi nos, Sanctissima
Ave maris stella: II. Sumens ilud ave prima pars
Ave maris stella: III. Sumens ilud ave seconda pars
Ave maris stella: V. Monstra te esse matrem
Ave maris stella: VII. Vitam praesta puram
Ave maris stella: VIII. Sit laus Deo Patri. Amen
Vexilla regis: IV. Arbor decora et fulgida
Vexilla regis: VII. Te summa, Deus. Amen
Clamabat autem mulier: I. Clamabat autem mulier chananea
Clamabat autem mulier: II. At illa venit
Magnificat: XIII. Sicut erat in principio
Victoria: Lamentations of Jeremiah – Ruimonte: De profundis
Feria V In Coena Domini: Lectio prima. Incipit Lamentatio
Feria V In Coena Domini: Lectio secunda. Vau. Et egressus
Feria V In Coena Domini: Lectio tertia. Jod. Manum suam
Feria VI In Passione Domini: Lectio prima. Heth. Cogitavit Dominus
Feria VI In Passione Domini: Lectio secunda. Lamed. Matribus
Feria VI In Passione Domini: Lectio tertia. Aleph. Ego vir
Sabbato Sancto: Lectio prima. Heth. Misericordiae
Sabbato Sancto: Lectio secunda. Aleph. Quomodo
Sabbato Sancto: Lectio tertia. Incipit Oratio