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 0x0ae0e5a78df8e0f698599b5e4087fc7c90b2b5022368befdf4f989c541a52e72. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b2d8063-625b-4011-b49c-1be14aeff176.json and https://artists.proofprofile.net/proofs/artist/3b2d8063-625b-4011-b49c-1be14aeff176.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lamentations, Book 3: Lesson I for Maundy Thursday
William Byrd: Masses For Four And Five Voices
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1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51071d6ba3b81c52b8aaf865be6ac0b7229334b72adffde8f7d3c39a0c51fd0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7y1KLbNkSFSugDVfFww9ek.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7y1KLbNkSFSugDVfFww9ek.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7470e43b98e8b8b979bfa97b4ed9358b835a0f0e14b9da0e95e53d0601012c77. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/19WbDyFueIT4C21lbyEvl8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/19WbDyFueIT4C21lbyEvl8.
{"copyright_id":"0xc8b970ee449edfd23ab8fbe66852389f24f91f87dd1b261ed31c1deb93d352cc","isrc":"HKI199421704","name":"Requiem, Op. 48: Pie Jesu","registered_at":"2026-06-09T18:11:04Z","spotify_id":"5EpbujLpUBw6OWDJ5UEPpT","type":"track"}
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{"copyright_id":"0x1da4fcccdf95f8d907a6e6f1e1c6d3023e861bbf8262996ca92ade2fff900824","isrc":"HKI199421705","name":"Requiem, Op. 48: Agnus Dei","registered_at":"2026-06-19T13:21:53Z","spotify_id":"5NBuS5gg9Il0hmZcKu96LC","type":"track"}
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f5003d48d1e4511845b10a0a9470b34149899f5bcbb8041ad64a91e061d4d3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1zS7agsg26LZcS0PyHp8QF.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1zS7agsg26LZcS0PyHp8QF.
{"copyright_id":"0x9ff567f5dedb3604111e2a93dd25cb74b61c96895c76d45ddf180af28d613c8c","isrc":"HKI199421707","name":"Requiem, Op. 48: In Paradisum","registered_at":"2026-06-10T05:06:20Z","spotify_id":"3JShIkRkCQS0eYBlnJ4oRY","type":"track"}
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Pieces De Fantaisie, Op. 51: Suite No. 1: Andantino
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{"copyright_id":"0xcc1e61d4463a7e6a25827b15218cb4f1943bc7c82cebd30a369cd0d60903f075","isrc":"HKI199490704","name":"Surrexit pastor bonus","registered_at":"2026-06-21T05:06:35Z","spotify_id":"2IEBVRk05MgOvByS67tyjQ","type":"track"}
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{"copyright_id":"0x7c8d6d966e1172f530d3e3febbfc181291c7c94dbd8f56e154e49fc4073be2b9","isrc":"HKI199490705","name":"Laboravi in gemitu meo","registered_at":"2026-06-10T05:04:49Z","spotify_id":"7jkuE8k4fSzkh0b8UzUNC6","type":"track"}
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{"copyright_id":"0xd487e4bb0e92b488a29dc38bc587afd9e338d7a96fbd78297d4e741966a0a0d4","isrc":"HKI199490706","name":"Ego flos campi","registered_at":"2026-06-18T17:51:24Z","spotify_id":"6SrREYauaQHjHQNjEmiA4g","type":"track"}
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Motets for 5-8 Voices: Book 4 for 5 Voices, "Canticis Canticorum" *: Si ignoras te
Mottetta typis nondum uspiam excusa: Lauda mater ecclesia
Liber secundus sacrarum cantionum (Cantiones sacrae): Laudibus in sanctis
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Liber secundus sacrarum cantionum [Cantiones sacrae]: Laudibus in sanctis
Tye: Missa Euge Bone / Mundy: Magnificat
Missa O magnum mysterium: O magnum mysterium
Pastyme with good company: Pastime with Good Company
A robyn, gentyl robyn: Ah Robin, Gentle Robin
Thule the period of cosmographie: Thule, the Period of Cosmography
The Second Set of Madrigals: Weep, Weep Mine Eyes
English Madrigals, Set 1: Fair Phyllis I Saw Sitting All Alone (text by Anonymous): Fair Phyllis
Sleep fleshly birth: Sleep, Fleshly Birth
Lay a garland on her hearse: Lay a Garland
The Blue Bird: 8 Partsongs, Op. 119: No. 3: The blue bird
As Vesta was from Latmos hill descending
Cello Concerto In E Minor, Op. 85: I. Adagio - Moderato - Hilary And Jackie
Die Tote Stadt, Op. 12: Gluck Das Mir Verblieb - The Big Lebowski
Brandenburg Concerto No. 1 In F Major, BWV 1046: III. Allegro - Rounders
Les Contes D'hoffmann (The Tales Of Hoffman), Act II: Belle Nuit, O Nuit D'amour, Barcarolle - La Vita E Bella
String Quartet No. 13 In A Minor, Op. 29, No. 1, D. 804: Andante - The Proposition
Piano Concerto No. 1 In E Minor, Op. 11: II. Romance: Larghetto - The Truman Show
String Quartet No. 53 In D Major, Op. 64, No. 5, Hob.III:63, "The Lark": Finale - Star Trek - Insurrection
Variations On An Original Theme, Op. 36, "Enigma": Nimrod - Elizabeth
Symphony No. 3 In C Minor, Op. 78, "Organ": Symphony No. 3 In C Minor, Op. 78, "Organ": II. Allegro Moderato - Babe-pig In The City
Requiem, Op. 48: VII. In Paradisum - The Thin Red Line
Art & Music: Riemenschneider - Music Of His Time
Basse Danse, "La Magdalena": Basse Danse 'La Magdalena'
Basse Danse, "La Gatta": Basse Danse 'La Gatta'
Greyner, Zanner: Greyner, Zanner, Eifrer
Ich Klag Den Tag (I Lament The Day): Ich Klag Den Tag
Innsbruck, Ich Muss Dich Lassen (Innsbruck, I Must Leave You): Innsbruck, Ich Muss Dich Lassen
Entlaubet Ist Der Walde (The Wood Is Bare Of Leaves): Entlaubet Ist Der Walde
Art & Music: Bruegel - Music Of His Time
Nieuwe Almanack Ende Pronosticatie: Nieuwe Almanack
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Tant Que Vivray En Aage Florissant: Tant Que Vivrai
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The Music Makers, Op. 69: I. Introduction
The Music Makers, Op. 69: II. "We are the music makers..."
The Music Makers, Op. 69: III. "We, in the ages lying..."
The Music Makers, Op. 69: IV. "A breath of our inspiration..."
The Music Makers, Op. 69: V. "They had no vision amazing..."
The Music Makers, Op. 69: VI. "For we are afar with the dawning..."
The Music Makers, Op. 69: VII. "Great hail!..."
Kodaly's The Music Makers: Introductory Speech by Madame Kodaly
The Music Makers, Op. 69: II. We are the music makers
The Music Makers, Op. 69: IV. We, in the ages lying
The Music Makers, Op. 69: V. A breath of our inspiration
The Music Makers, Op. 69: VI. They had no vision amazing
The Music Makers, Op. 69: IX. For we are afar with the dawning
The Music Makers, Op. 69: X. Great hail! We cry to the comers
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Missa L'homme arme: Kyrie (Missa L' homme arme)
Burial Service: Man That Is born of a woman, Z. 27
Requiem in D Minor, Op. 48: IV. Pie Jesu (Featured in "S1m0ne")
Le Voir Dit: Rondeau 18: Puis qu'en oubli
Motets for 5-8 Voices, Book 4 for 5 Voices "Canticis Canticorum": Si ignoras te
8 Partsongs, Op. 119: No. 3, The Bluebird
Masses, Book 2, Missa Papae Marcelli: Kyrie
Requiem, Op. 48: VII. In paradisum (From "Copycat")
Psalms of David, Op. 2: Jauchzet dem Herren, alle Welt, SWV 36
O Sanctum Cor Iesu - O Sacred Heart of Jesus
Credo In Unum Deum - I Believe in One God
Tu es Deus Virtutum - You are the God of Hosts
Magnificet Omnia - Let Everything Magnify
Sanctae Maria, Regina Caeli - Holy Mary, Queen of Heaven
Sursum Cordis Meum - My Heart is Lifted Up
Gregorian Chants Honor and Praise God - Rite of Prayer God in the Monastery
Agnus Dei, Qui Tollis - Lamb of God, Who Takes Away
Alma Redemptoris Mater - Loving Mother of the Redeemer
Dignare Me Laudare Te - Deign to Allow Me to Praise You
Canticle of Zachary - Canticle of Zechariah
Deus in Adjutorium - God, Come to My Assistance
Dies Sanctificatus - This Day Is Made Holy
Christe Redemptor Omnium - Christ, Redeemer of All
Ave Regina Caelorum - Hail, Queen of Heaven
Benedicta et Venerabilis - Blessed and Venerable
Gregorian Chants for Sleep and Solitude From The Monks of The Abbey
Agnus Dei, Rex Caelorum - Lamb of God, King of Heaven
Benedicamus Domino Deo - Let Us Bless the Lord God
Amor Caeli Splendidus - Radiant Love of Heaven
Amor et Gloria Dei - Love and Glory of God
Ad Te Levamus Cordis Nostros - To You, We Lift Up Our Hearts
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Ave Amabilis Domine - Hail, Beloved Lord
Adoremus, Rex Omnipotens - Let Us Adore, Almighty King
Ave Amoris Divini Fons - Hail, Fountain of Divine Love
Amor Sancti Patris - Love of the Holy Father
Aeterna Veritas Tuam - Your Eternal Truth
Ave Lux Caelestis - Hail, Heavenly Light
Ave Regina Angelorum - Hail, Queen of Angels
Ave Veritas Et Lux - Hail, Truth and Light
Adoremus Nomen Domini - Let Us Adore the Name of the Lord
Adoremus Filium Amoris - Let Us Adore the Son of Love
Ave Sancta Lux Perennis - Hail, Holy Eternal Light
Adoremus Spiritum Sanctum - Let Us Adore the Holy Spirit
Ad Te Veniamus, Deus - To You We Come, God
Adoremus Spiritum Omnia - Let Us Adore the Spirit of All
Adoremus O Domine - We Adore You, O Lord
Adoremus Nomen Sanctum - Let Us Adore the Holy Name
Adoremus in Spiritu Sancto - Let Us Adore in the Holy Spirit
Ave Caritas Omnipotens - Hail, Almighty Charity
Adoremus Te, O Divinus Rex - We Adore You, O Divine King
Gregorian Chant 432Hz - Arise o Lord - Exsurge Domine
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Of Kings and Thrones - Classical Music of the Middle Ages
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101 Classics - The Best Loved Classical Melodies
Il salmo Miserere mei Deus: Miserere mei
Psalmen Davids samt etlichen Moteten und Concerten, Op. 2, SWV 22-47: Der 100. Psalm, SWV 36, "Jauchzet dem Herren, alle Welt"
Obras-primas da música clássica portuguesa
Spellbinding Classics: Classical Music for the Witching Hour