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description: thumb|d'Indy, c. 1895 Paul Marie Théodore Vincent d'Indy (; 27 March 18512 December 1931) was a French composer and teacher. His influence as a teacher, in particular, was considerable. He was a co-fo
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album: d'Indy: Violin Sonata - Cello Sonata
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album: Indy, V. D': Poeme Des Rivages / Diptyque Mediterraneen / Istar
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album: d'Indy: Symphonie sur un Chant Montagnard Français, Saugefleurie, Médée & Prelude to Fervaal
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  track: Symphonie sur un Chant Montagnard Français, Op. 25: III. Animé
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album: The Centenary Album
track: Tableaux de voyage, Op. 33: IV. Lac vert

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track: Schubert: Schwanengesang, D. 957: No. 14, Die Taubenpost
track: Fauré: 2 Mélodies, Op. 46: No. 2, Clair de lune
track: Schumann: Liederkreis, Op. 39: No. 1, In der Fremde
track: Schumann: Liederkreis, Op. 39: No. 7, Auf einer Burg
track: Bizet: La chanson du fou, WD 86
track: Schubert: Die schöne Müllerin, Op. 25, D. 795: No. 1, Das Wandern
track: Verdi: Don Carlos, Act 1: "Gott, der entflammte der Liebe heiße Glut" (Posa, Don Carlos)
track: Bartók: 5 Lieder, Op. 15, Sz. 61: No. 5, Im Tale
track: Beethoven: An die ferne Geliebte, Op. 98: No. 1, Auf dem Hügel sitz'ich, spähend
track: Strauss II, J: Der Zigeunerbaron, Act 2: Werberlied. "Her die Hand" (Homonay, Chor)
track: Grieg: Melodien des Herzens, Op. 5: No. 2, Des Dichters Herz
track: Grieg: Melodien des Herzens, Op. 5: No. 4, Mein Sinn ist wie der mächt'ge Fels
track: Hahn: 7 Chansons grises: No. 5, L'heure exquise
track: Mendelssohn: Paulus, Op. 36, MWV A14, Pt. 1: No. 17, Arie. "Gott sei mir gnädig nach deiner Güte"
track: Mendelssohn: Paulus, Op. 36, MWV A14, Pt. 1: No. 19, Arie mit Chor. "Ich danke dir, Herr mein Gott"
track: Debussy: 3 Chansons de France, CD 115, L. 102: No. 3, Rondel. "Pour ce que Plaisance est morte"
track: Haydn: Canzonettas, Book I: No. 2, Recollection, Hob. XXVIa:26
track: Haydn: Canzonettas, Book II: No. 1, Sailor's Song, Hob. XXVIa:31
track: Schubert: Winterreise, Op. 89, D. 911: No. 5, Der Lindenbaum
track: Schubert: Winterreise, Op. 89, D. 911: No. 15, Die Krähe
track: Puccini: Madame Butterfly, Act 3: "Leb' wohl, mein Blütenreich!" (Pinkerton, Sharpless)
track: Kirchner: 10 Lieder, Op. 1: No. 9, Frühlingsgedränge
track: Brahms: 49 Deutsche Volkslieder, WoO 33: No. 10, Es ritt ein Ritter
track: Brahms: 49 Deutsche Volkslieder, WoO 33: No. 13, Wach' auf, mein Hort
track: Mozart: Le nozze di Figaro, K. 492, Act 3: "Hai già vinta la causa!" - "Vedrò, mentr'io sospiro" (Conte)
track: Beethoven: Adelaide, Op. 46
track: Bach, JS: Amore traditore, BWV 203: No. 3, Aria. "Chi in amore ha nemica la sorte"
track: Chausson: Poème de l'amour et de la mer, Op. 19: III. (b) Le temps des lilas
track: Chabrier: Les cigales
track: Mahler: Kindertotenlieder: No. 1, Nun will die Sonn' so hell aufgeh'n
track: Purcell: King Arthur, Z. 628, Act 2: Duet. "Shepherd, Shepherd, Leave Decoying"
track: Schumann: Dichterliebe, Op. 48: No. 1, Im wunderschönen Monat Mai
track: Schumann: Dichterliebe, Op. 48: No. 6, Im Rhein, im heiligen Strome
track: Nicolai: Die lustigen Weiber von Windsor, Act 2: Duett. "In einem Waschkorb?" (Herr Fluth, Falstaff)
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track: Schubert: Du bist die Ruh, Op. 59 No. 3, D. 776
track: Brahms: 15 Romances from Tieck's "Die schöne Magelone", Op. 33: No. 5, So willst du des Armen
track: Brahms: 15 Romances from Tieck's "Die schöne Magelone", Op. 33: No. 6, Wie soll ich die Freude
track: Mahler: Lieder eines fahrenden Gesellen: No. 4, Die zwei blauen Augen
track: Milhaud: Poèmes juifs, Op. 34: No. 8, Lamentation
track: Mozart: An Chloë, K. 524
track: Chausson: 7 Mélodies, Op. 2: No. 3, Les papillons
track: Strauss, R: 4 Lieder, Op. 27: No. 4, Morgen!
track: Cornelius: Trauer und Trost, Op. 3: No. 2, Angedenken
track: Couperin, F: Première leçon de ténèbres pour le Mercredi saint: IV. Ghimel

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date published: 2026-06-13T13:32:09Z

Schubert: Schwanengesang, D. 957: No. 8, Der Atlas
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Schubert: Schwanengesang, D. 957: No. 14, Die Taubenpost
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Fauré: 2 Mélodies, Op. 46: No. 2, Clair de lune
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Fauré: 2 Mélodies, Op. 46: No. 2, Clair de lune
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Schumann: Liederkreis, Op. 39: No. 1, In der Fremde
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Schumann: Liederkreis, Op. 39: No. 7, Auf einer Burg
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Bizet: La chanson du fou, WD 86
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Bizet: La chanson du fou, WD 86
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Schubert: Die schöne Müllerin, Op. 25, D. 795: No. 1, Das Wandern
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Schubert: Die schöne Müllerin, Op. 25, D. 795: No. 1, Das Wandern
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Verdi: Don Carlos, Act 1: "Gott, der entflammte der Liebe heiße Glut" (Posa, Don Carlos)
type: MusicRecording
duration: PT2M41S
duration ms: 161573
explicit: false
by artist: Giuseppe Verdi
by artist: Giuseppe Patanè
by artist: Dietrich Fischer-Dieskau
by artist: Nicolai Gedda
by artist: Radio-Symphonie-Orchester Berlin
in album: The Centenary Album
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  date published: 2025-07-08
genre: classical
genre: opera
isrc code: DEA340100392
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA340100392
additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6502c2894eeb9c464793f2e6f12ff0dc596b064f162484d34b6c8d337572828c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEA340100392.
  date published: 2026-07-02T03:30:09Z
audio: Verdi: Don Carlos, Act 1: "Gott, der entflammte der Liebe heiße Glut" (Posa, Don Carlos)
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Bartók: 5 Lieder, Op. 15, Sz. 61: No. 5, Im Tale
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duration: PT3M53S
duration ms: 233000
explicit: false
by artist: Béla Bartók
by artist: Dietrich Fischer-Dieskau
by artist: Hermann Reutter
in album: The Centenary Album
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  date published: 2025-07-08
isrc code: GBAYC0000506
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
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  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Bartók: 5 Lieder, Op. 15, Sz. 61: No. 5, Im Tale
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Beethoven: An die ferne Geliebte, Op. 98: No. 1, Auf dem Hügel sitz'ich, spähend
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duration: PT2M20S
duration ms: 140213
explicit: false
by artist: Ludwig van Beethoven
by artist: Dietrich Fischer-Dieskau
by artist: Hartmut Höll
in album: The Centenary Album
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  date published: 2025-07-08
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-02T03:30:09Z
audio: Beethoven: An die ferne Geliebte, Op. 98: No. 1, Auf dem Hügel sitz'ich, spähend
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Strauss II, J: Der Zigeunerbaron, Act 2: Werberlied. "Her die Hand" (Homonay, Chor)
type: MusicRecording
duration: PT2M44S
duration ms: 164786
explicit: false
by artist: Johann Strauss II
by artist: Willi Boskovsky
by artist: Bavarian Radio Chorus
by artist: Dietrich Fischer-Dieskau
by artist: Das Münchner Rundfunkorchester
in album: The Centenary Album
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  date published: 2025-07-08
isrc code: DEC628700445
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5183ae699e96d5b09969e33f8fb30f909d7014c27abed4e63708da4670fb03f5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEC628700445.
  date published: 2026-07-02T03:30:09Z
audio: Strauss II, J: Der Zigeunerbaron, Act 2: Werberlied. "Her die Hand" (Homonay, Chor)
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Grieg: Melodien des Herzens, Op. 5: No. 2, Des Dichters Herz
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duration: PT1M22S
duration ms: 82026
explicit: false
by artist: Edvard Grieg
by artist: Dietrich Fischer-Dieskau
by artist: Hartmut Höll
in album: The Centenary Album
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  date published: 2025-07-08
genre: classical
genre: late-romantic-era
genre: norwegian-classical
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a1824616cc880fa236d74f7ec2e05408f5ac63a7f20eb3f8b411cc556559d4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEA340400870.
  date published: 2026-07-02T03:30:09Z
audio: Grieg: Melodien des Herzens, Op. 5: No. 2, Des Dichters Herz
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  additional property: Acousticness
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Grieg: Melodien des Herzens, Op. 5: No. 4, Mein Sinn ist wie der mächt'ge Fels
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duration: PT1M4S
duration ms: 64000
explicit: false
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by artist: Dietrich Fischer-Dieskau
by artist: Hartmut Höll
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genre: classical
genre: late-romantic-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc019e37d24e915f3bf71562dc6d01ca7312db112e1add9bf4735c15f5d3682. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEA340400868.
  date published: 2026-07-02T03:30:09Z
audio: Grieg: Melodien des Herzens, Op. 5: No. 4, Mein Sinn ist wie der mächt'ge Fels
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Hahn: 7 Chansons grises: No. 5, L'heure exquise
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by artist: Hartmut Höll
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d296514375e2275f3ca12f60e5659eaaeec4b8e5e79d1a08fe231aacf1ac0e5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEA808705000.
  date published: 2026-07-02T03:30:09Z
audio: Hahn: 7 Chansons grises: No. 5, L'heure exquise
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 119.178
  additional property: Musical Key
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    value: 8
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.18
  additional property: Energy
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    value: 0.004
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.151
  additional property: Liveness
    type: PropertyValue
    value: 0.075
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.046
  additional property: Loudness (dB)
    type: PropertyValue
    value: -40.654
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mendelssohn: Paulus, Op. 36, MWV A14, Pt. 1: No. 17, Arie. "Gott sei mir gnädig nach deiner Güte"
type: MusicRecording
duration: PT5M50S
duration ms: 350853
explicit: false
by artist: Felix Mendelssohn
by artist: Dietrich Fischer-Dieskau
by artist: Rafael Frühbeck de Burgos
by artist: Düsseldorfer Symphoniker
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DEC628700531
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T17:42:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa3e84c1f759106907c325001b7b11f8b86f29cc378cea6a6afa30fc697f6b6b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700531
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e84c1f759106907c325001b7b11f8b86f29cc378cea6a6afa30fc697f6b6b2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEC628700531.
  date published: 2026-07-02T03:30:09Z
audio: Mendelssohn: Paulus, Op. 36, MWV A14, Pt. 1: No. 17, Arie. "Gott sei mir gnädig nach deiner Güte"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.102
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.195
  additional property: Energy
    type: PropertyValue
    value: 0.097
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.014
  additional property: Liveness
    type: PropertyValue
    value: 0.166
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.113
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.021
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mendelssohn: Paulus, Op. 36, MWV A14, Pt. 1: No. 19, Arie mit Chor. "Ich danke dir, Herr mein Gott"
type: MusicRecording
duration: PT4M59S
duration ms: 299040
explicit: false
by artist: Felix Mendelssohn
by artist: Dietrich Fischer-Dieskau
by artist: Chor des Städtischen Musikvereins zu Düsseldorf
by artist: Rafael Frühbeck de Burgos
by artist: Düsseldorfer Symphoniker
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DEC628700533
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T18:59:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9bb2d98a73b89fc98d6adf8e31f57f7d70724a7f223277d80ff11413ac36d9d0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700533
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb2d98a73b89fc98d6adf8e31f57f7d70724a7f223277d80ff11413ac36d9d0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEC628700533.
  date published: 2026-07-02T03:55:08Z
audio: Mendelssohn: Paulus, Op. 36, MWV A14, Pt. 1: No. 19, Arie mit Chor. "Ich danke dir, Herr mein Gott"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 168.729
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.132
  additional property: Energy
    type: PropertyValue
    value: 0.132
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.137
  additional property: Liveness
    type: PropertyValue
    value: 0.079
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.134
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.279
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Debussy: 3 Chansons de France, CD 115, L. 102: No. 3, Rondel. "Pour ce que Plaisance est morte"
type: MusicRecording
duration: PT2M52S
duration ms: 172626
explicit: false
by artist: Claude Debussy
by artist: Dietrich Fischer-Dieskau
by artist: Hermann Reutter
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: GBAYC0000494
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T19:03:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x492ed69f806c11cd6e67360b5fc04e2de2e7424a41c03ea6fde1a714b60abffc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0000494
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492ed69f806c11cd6e67360b5fc04e2de2e7424a41c03ea6fde1a714b60abffc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC0000494.
  date published: 2026-07-02T03:55:08Z
audio: Debussy: 3 Chansons de France, CD 115, L. 102: No. 3, Rondel. "Pour ce que Plaisance est morte"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.085
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.173
  additional property: Energy
    type: PropertyValue
    value: 0.046
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.06
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.553
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Haydn: Canzonettas, Book I: No. 2, Recollection, Hob. XXVIa:26
type: MusicRecording
duration: PT3M13S
duration ms: 193600
explicit: false
by artist: Joseph Haydn
by artist: Dietrich Fischer-Dieskau
by artist: Gerald Moore
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
isrc code: GBAYC0903017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T19:04:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x970e60a417b2bf4a39a4598b5be93b0169e5ae0dc13b2a189809547bb9f3bfe4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0903017
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970e60a417b2bf4a39a4598b5be93b0169e5ae0dc13b2a189809547bb9f3bfe4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC0903017.
  date published: 2026-07-02T03:55:08Z
audio: Haydn: Canzonettas, Book I: No. 2, Recollection, Hob. XXVIa:26
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.074
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.349
  additional property: Energy
    type: PropertyValue
    value: 0.033
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.181
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.96
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Haydn: Canzonettas, Book II: No. 1, Sailor's Song, Hob. XXVIa:31
type: MusicRecording
duration: PT2M4S
duration ms: 124680
explicit: false
by artist: Joseph Haydn
by artist: Dietrich Fischer-Dieskau
by artist: Gerald Moore
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
isrc code: GBAYC0903019
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T21:27:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa3f97537005c30e8192e994d593ca86236251c35e1aa1efe6613b6a82986dc08
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0903019
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f97537005c30e8192e994d593ca86236251c35e1aa1efe6613b6a82986dc08. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC0903019.
  date published: 2026-07-02T03:55:08Z
audio: Haydn: Canzonettas, Book II: No. 1, Sailor's Song, Hob. XXVIa:31
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.329
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.696
  additional property: Energy
    type: PropertyValue
    value: 0.202
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.572
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.348
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Schubert: Winterreise, Op. 89, D. 911: No. 5, Der Lindenbaum
type: MusicRecording
duration: PT4M33S
duration ms: 273866
explicit: false
by artist: Franz Schubert
by artist: Dietrich Fischer-Dieskau
by artist: Gerald Moore
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBAYC0400351
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T21:55:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x21c4cdb5c966046f90d43a383f2b01873ac69881d9d2da70e02e799d12b60878
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0400351
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c4cdb5c966046f90d43a383f2b01873ac69881d9d2da70e02e799d12b60878. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC0400351.
  date published: 2026-07-02T03:55:08Z
audio: Schubert: Winterreise, Op. 89, D. 911: No. 5, Der Lindenbaum
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.271
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.261
  additional property: Energy
    type: PropertyValue
    value: 0.069
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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Schubert: Winterreise, Op. 89, D. 911: No. 15, Die Krähe
type: MusicRecording
duration: PT2M4S
duration ms: 124506
explicit: false
by artist: Franz Schubert
by artist: Dietrich Fischer-Dieskau
by artist: Gerald Moore
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBAYC0400361
additional property: CopyrightID
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0400361
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987e15fb8debf27b82286095ede162f58ca69aeaefe20f5342a39d7afc047c94. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC0400361.
  date published: 2026-07-02T03:55:08Z
audio: Schubert: Winterreise, Op. 89, D. 911: No. 15, Die Krähe
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Puccini: Madame Butterfly, Act 3: "Leb' wohl, mein Blütenreich!" (Pinkerton, Sharpless)
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duration: PT1M34S
duration ms: 94000
explicit: false
by artist: Giacomo Puccini
by artist: Wilhelm Schüchter
by artist: Dietrich Fischer-Dieskau
by artist: Rudolf Schock
by artist: Orchester der Deutschen Oper Berlin
in album: The Centenary Album
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  date published: 2025-07-08
isrc code: DEA340002403
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c744700b5dff1f4d51724af13b06190edf1e1a8350a0e467ca722d375eb503. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA340002403.
  date published: 2026-07-02T03:55:08Z
audio: Puccini: Madame Butterfly, Act 3: "Leb' wohl, mein Blütenreich!" (Pinkerton, Sharpless)
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Kirchner: 10 Lieder, Op. 1: No. 9, Frühlingsgedränge
type: MusicRecording
duration: PT2M12S
duration ms: 132360
explicit: false
by artist: Theodor Kirchner
by artist: Dietrich Fischer-Dieskau
by artist: Aribert Reimann
in album: The Centenary Album
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  date published: 2025-07-08
isrc code: GBAYC0000459
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-02T03:55:08Z
audio: Kirchner: 10 Lieder, Op. 1: No. 9, Frühlingsgedränge
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Brahms: 49 Deutsche Volkslieder, WoO 33: No. 10, Es ritt ein Ritter
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duration: PT2M27S
duration ms: 147213
explicit: false
by artist: Johannes Brahms
by artist: Elisabeth Schwarzkopf
by artist: Dietrich Fischer-Dieskau
by artist: Gerald Moore
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
isrc code: GBAYC1503146
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527272c11101c95ce9f3b29811021653cba3c648ca27ba2737d9b0486f29fed8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC1503146.
  date published: 2026-07-02T03:55:08Z
audio: Brahms: 49 Deutsche Volkslieder, WoO 33: No. 10, Es ritt ein Ritter
  type: AudioObject
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  additional property: Loudness (dB)
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Brahms: 49 Deutsche Volkslieder, WoO 33: No. 13, Wach' auf, mein Hort
type: MusicRecording
duration: PT2M12S
duration ms: 132933
explicit: false
by artist: Johannes Brahms
by artist: Elisabeth Schwarzkopf
by artist: Dietrich Fischer-Dieskau
by artist: Gerald Moore
in album: The Centenary Album
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  date published: 2025-07-08
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
isrc code: GBAYC1503149
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832e6722a73b3722255c6932019c63da4bdb9ab153f059d5ed0cebf469b10d86. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC1503149.
  date published: 2026-07-02T03:55:08Z
audio: Brahms: 49 Deutsche Volkslieder, WoO 33: No. 13, Wach' auf, mein Hort
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Mozart: Le nozze di Figaro, K. 492, Act 3: "Hai già vinta la causa!" - "Vedrò, mentr'io sospiro" (Conte)
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duration: PT4M51S
duration ms: 291626
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Daniel Barenboim
by artist: Dietrich Fischer-Dieskau
by artist: English Chamber Orchestra
in album: The Centenary Album
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  date published: 2025-07-08
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC9000604
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additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2094d1e7406b4c17d8c7e47743c0197edf8e3d780be3c368d81ff611ea78031. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC9000604.
  date published: 2026-07-02T03:55:08Z
audio: Mozart: Le nozze di Figaro, K. 492, Act 3: "Hai già vinta la causa!" - "Vedrò, mentr'io sospiro" (Conte)
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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Beethoven: Adelaide, Op. 46
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duration ms: 351946
explicit: false
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by artist: Dietrich Fischer-Dieskau
by artist: Hartmut Höll
in album: The Centenary Album
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  date published: 2025-07-08
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309de6b2fc22be2559fc794f604eee4f10455ccc6871efbf0f054554ca856603. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC0902922.
  date published: 2026-07-02T03:55:08Z
audio: Beethoven: Adelaide, Op. 46
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  additional property: Mode (Major/Minor)
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  additional property: Energy
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Bach, JS: Amore traditore, BWV 203: No. 3, Aria. "Chi in amore ha nemica la sorte"
type: MusicRecording
duration: PT6M34S
duration ms: 394266
explicit: false
by artist: Johann Sebastian Bach
by artist: Dietrich Fischer-Dieskau
by artist: Edith Picht-Axenfeld
by artist: Irmgard Poppen
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GBAYC9901864
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-06-24T21:18:00+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x7ea001b47c14e574686ca69f98710ad40dd1b888eaea781fe9a605fbca4fb1e4
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9901864
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea001b47c14e574686ca69f98710ad40dd1b888eaea781fe9a605fbca4fb1e4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBAYC9901864.
  date published: 2026-07-02T03:55:08Z
audio: Bach, JS: Amore traditore, BWV 203: No. 3, Aria. "Chi in amore ha nemica la sorte"
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    type: PropertyValue
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  additional property: Danceability
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Chausson: Poème de l'amour et de la mer, Op. 19: III. (b) Le temps des lilas
type: MusicRecording
duration: PT4M34S
duration ms: 274466
explicit: false
by artist: Ernest Chausson
by artist: Dietrich Fischer-Dieskau
by artist: Hartmut Höll
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: late-romantic-era
genre: french-romanticism
isrc code: DEA808704700
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0aecd1a3b6fb81bb71a9ce22076169a2bcc6c7de6d4738d3c8e1f725a65f0e14
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808704700
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aecd1a3b6fb81bb71a9ce22076169a2bcc6c7de6d4738d3c8e1f725a65f0e14. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA808704700.
  date published: 2026-07-02T03:55:08Z
audio: Chausson: Poème de l'amour et de la mer, Op. 19: III. (b) Le temps des lilas
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.642
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.28
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
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Chabrier: Les cigales
type: MusicRecording
duration: PT3M17S
duration ms: 197373
explicit: false
by artist: Emmanuel Chabrier
by artist: Dietrich Fischer-Dieskau
by artist: Hartmut Höll
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
isrc code: DEA808704000
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-06-25T14:19:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4126abdaeb6d39e39f2e948fb762b70fd1648ca5eb11c4332f0baf3730f22fc2
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808704000
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4126abdaeb6d39e39f2e948fb762b70fd1648ca5eb11c4332f0baf3730f22fc2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA808704000.
  date published: 2026-07-02T03:55:08Z
audio: Chabrier: Les cigales
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.417
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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    value: -24.383
  additional property: Key Name
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Mahler: Kindertotenlieder: No. 1, Nun will die Sonn' so hell aufgeh'n
type: MusicRecording
duration: PT5M13S
duration ms: 313240
explicit: false
by artist: Gustav Mahler
by artist: Dietrich Fischer-Dieskau
by artist: Rudolf Kempe
by artist: Berliner Philharmoniker
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: orchestra
genre: orchestral
isrc code: GBAYC0100602
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-28T06:06:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcfe1edf310a7a53572619af492194f01c3e4e568e4a9859282a9609376ac504b
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956375
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0100602
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T16:51:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe1edf310a7a53572619af492194f01c3e4e568e4a9859282a9609376ac504b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBAYC0100602.
  date published: 2026-07-02T16:51:38Z
audio: Mahler: Kindertotenlieder: No. 1, Nun will die Sonn' so hell aufgeh'n
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.302
  additional property: Key Name
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  additional property: Mode Name
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Purcell: King Arthur, Z. 628, Act 2: Duet. "Shepherd, Shepherd, Leave Decoying"
type: MusicRecording
duration: PT1M7S
duration ms: 67971
explicit: false
by artist: Henry Purcell
by artist: Janet Baker
by artist: Dietrich Fischer-Dieskau
by artist: Daniel Barenboim
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: choral
isrc code: GBAYC1300511
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb5ad943338fc519e0dc63fb84aeb0a8f6d1c4b852dd0a39cbcdabbaec1332f88
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956375
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956375
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1300511
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T16:51:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ad943338fc519e0dc63fb84aeb0a8f6d1c4b852dd0a39cbcdabbaec1332f88. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBAYC1300511.
  date published: 2026-07-02T16:51:38Z
audio: Purcell: King Arthur, Z. 628, Act 2: Duet. "Shepherd, Shepherd, Leave Decoying"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Schumann: Dichterliebe, Op. 48: No. 1, Im wunderschönen Monat Mai
type: MusicRecording
duration: PT2M8S
duration ms: 128306
explicit: false
by artist: Robert Schumann
by artist: Dietrich Fischer-Dieskau
by artist: Hartmut Höll
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: FRZ209220601
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209220601
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T16:51:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6c77837eb963d21c08c1cd373623610b0c76104b7f7862b79d244519404639. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRZ209220601.
  date published: 2026-07-02T16:51:38Z
audio: Schumann: Dichterliebe, Op. 48: No. 1, Im wunderschönen Monat Mai
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Schumann: Dichterliebe, Op. 48: No. 6, Im Rhein, im heiligen Strome
type: MusicRecording
duration: PT2M21S
duration ms: 141093
explicit: false
by artist: Robert Schumann
by artist: Dietrich Fischer-Dieskau
by artist: Hartmut Höll
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: FRZ209220606
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956375
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209220606
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab436d8d0ee363c0e9390cc45a8bcd6c9d8923f08d52a4d391545cd6590f4c81. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRZ209220606.
  date published: 2026-07-02T16:51:38Z
audio: Schumann: Dichterliebe, Op. 48: No. 6, Im Rhein, im heiligen Strome
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Nicolai: Die lustigen Weiber von Windsor, Act 2: Duett. "In einem Waschkorb?" (Herr Fluth, Falstaff)
type: MusicRecording
duration: PT5M52S
duration ms: 352466
explicit: false
by artist: Otto Nicolai
by artist: Wilhelm Schüchter
by artist: Dietrich Fischer-Dieskau
by artist: Gottlob Frick
by artist: Orchester der Deutschen Oper Berlin
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
isrc code: DEA340002266
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA340002266
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T16:51:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472a70879e3acb0f7d4449b748317ea2b54a9f7a7e72149da987aaa6c68f8d5e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEA340002266.
  date published: 2026-07-02T16:51:38Z
audio: Nicolai: Die lustigen Weiber von Windsor, Act 2: Duett. "In einem Waschkorb?" (Herr Fluth, Falstaff)
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Danceability
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  additional property: Energy
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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Wolf: Eichendorff-Lieder: No. 11, Lieber alles
type: MusicRecording
duration: PT1M10S
duration ms: 70933
explicit: false
by artist: Hugo Wolf
by artist: Dietrich Fischer-Dieskau
by artist: Gerald Moore
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: post-romantic-era
isrc code: GBAYC0300665
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0300665
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd5b215bde6458368576463efbf56ecc6f87e3cb856232cc24acd0f7202b874. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/GBAYC0300665.
  date published: 2026-07-22T15:39:05Z
audio: Wolf: Eichendorff-Lieder: No. 11, Lieber alles
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  additional property: Tempo (BPM)
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  additional property: Acousticness
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    value: 0.947
  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Wagner: Tannhäuser, Act 3: "Wie Todesahnung" - "O du, mein holder Abendstern" (Wolfram)
type: MusicRecording
duration: PT4M18S
duration ms: 258680
explicit: false
by artist: Richard Wagner
by artist: Dietrich Fischer-Dieskau
by artist: Orchester Der Staatsoper Berlin
by artist: Franz Konwitschny
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: opera
isrc code: DEA340703103
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T23:58:53+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf52980598027069e3493005177078107691c0515d812a78284512bc7430538. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEA340703103.
  date published: 2026-07-06T06:56:49Z
audio: Wagner: Tannhäuser, Act 3: "Wie Todesahnung" - "O du, mein holder Abendstern" (Wolfram)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.574
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.139
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.731
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Schubert: Die Götter Griechenlands, D. 677
type: MusicRecording
duration: PT3M52S
duration ms: 232093
explicit: false
by artist: Franz Schubert
by artist: Dietrich Fischer-Dieskau
by artist: Karl Engel
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBAYC1103902
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfdcd6a2eb2a0b29d867fa0cb87c87c1084949db65ac98071fdf2fd91fc812b85
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1103902
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T16:43:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcd6a2eb2a0b29d867fa0cb87c87c1084949db65ac98071fdf2fd91fc812b85. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/GBAYC1103902.
  date published: 2026-07-22T16:43:41Z
audio: Schubert: Die Götter Griechenlands, D. 677
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.285
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.278
  additional property: Energy
    type: PropertyValue
    value: 0.009
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.094
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.131
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.727
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Schubert: Du bist die Ruh, Op. 59 No. 3, D. 776
type: MusicRecording
duration: PT4M17S
duration ms: 257893
explicit: false
by artist: Franz Schubert
by artist: Dietrich Fischer-Dieskau
by artist: Gerald Moore
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBAYC8802391
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-22T16:15:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x700500c90ecd96496787d4a4c97fc11043610eb4ff0c3fe027353cd0f84be4dd
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 959155
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959155
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8802391
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T16:43:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700500c90ecd96496787d4a4c97fc11043610eb4ff0c3fe027353cd0f84be4dd. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/GBAYC8802391.
  date published: 2026-07-22T16:43:41Z
audio: Schubert: Du bist die Ruh, Op. 59 No. 3, D. 776
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.912
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.107
  additional property: Energy
    type: PropertyValue
    value: 0.005
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -34.33
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Brahms: 15 Romances from Tieck's "Die schöne Magelone", Op. 33: No. 5, So willst du des Armen
type: MusicRecording
duration: PT1M34S
duration ms: 94960
explicit: false
by artist: Johannes Brahms
by artist: Dietrich Fischer-Dieskau
by artist: Sviatoslav Richter
in album: The Centenary Album
  type: MusicAlbum
  date published: 2025-07-08
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
isrc code: GBAYC9301581
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960095
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9301581
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:07:37Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-29T11:07:37Z
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Brahms: 15 Romances from Tieck's "Die schöne Magelone", Op. 33: No. 6, Wie soll ich die Freude
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by artist: Dietrich Fischer-Dieskau
by artist: Sviatoslav Richter
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T11:07:37Z
audio: Brahms: 15 Romances from Tieck's "Die schöne Magelone", Op. 33: No. 6, Wie soll ich die Freude
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Mahler: Lieder eines fahrenden Gesellen: No. 4, Die zwei blauen Augen
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by artist: Dietrich Fischer-Dieskau
by artist: Wilhelm Furtwängler
by artist: Philharmonia Orchestra
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T03:35:13Z
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Milhaud: Poèmes juifs, Op. 34: No. 8, Lamentation
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by artist: Dietrich Fischer-Dieskau
by artist: Hermann Reutter
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T21:09:47Z
audio: Milhaud: Poèmes juifs, Op. 34: No. 8, Lamentation
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Mozart: An Chloë, K. 524
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T14:28:24Z
audio: Mozart: An Chloë, K. 524
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Chausson: 7 Mélodies, Op. 2: No. 3, Les papillons
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T15:38:18Z
audio: Chausson: 7 Mélodies, Op. 2: No. 3, Les papillons
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Strauss, R: 4 Lieder, Op. 27: No. 4, Morgen!
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Strauss, R: 4 Lieder, Op. 27: No. 4, Morgen!
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Cornelius: Trauer und Trost, Op. 3: No. 2, Angedenken
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T13:38:16Z
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Couperin, F: Première leçon de ténèbres pour le Mercredi saint: IV. Ghimel
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by artist: Dietrich Fischer-Dieskau
by artist: Edith Picht-Axenfeld
by artist: Irmgard Poppen
in album: The Centenary Album
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genre: classical-era
genre: early-music
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genre: french-baroque
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ceec3c2d519085c3c74fc7b219d81cb0fa460c01e3bc208bd7b3ab594fa7a24. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBAYC1801104.
  date published: 2026-07-07T18:39:05Z
audio: Couperin, F: Première leçon de ténèbres pour le Mercredi saint: IV. Ghimel
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Tableaux de voyage, Op. 33: IV. Lac vert
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by artist: Eric Le Sage
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popularity: 4
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810844ae401cf011435bd08d72308bd1de0281a6ef82cec369d7dcf9f99489fc. 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/FR9W12214678.
  date published: 2026-07-08T03:20:19Z
audio: Tableaux de voyage, Op. 33: IV. Lac vert
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