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genre: classical
genre: classical piano
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album: Classical Piano Mood Music: Relax
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album: The Kuleshov Experiment No.1: 21st Century Mood Music
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album: Keep Calm With Classical Piano: The Best Relaxing Music and Most Greatest Relax Pieces of All Time Ever
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  track: Gymnopédies No. 1
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    audio: Gymnopédies No. 1
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  track: The Carnival of the Animals: XIV. The Swan
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  track: Ave Maria
album: 怀孕音乐:从西面为未出生的婴儿最好的古典钢琴音乐
album: Terry Riley: In C (Live at the Roundchapel)
album: Musique classique 50 : Les cinquante meilleurs chefs-d'œuvre de compositeurs les plus célèbres dans le monde les
album: Classical Piano for Baby 50: The Best Soothing Music for Children and a Relaxing Pregnancy, Playtime and Restful Bedtime Sleep
album: The Best Classical Music:50 of the Most Famous and best loved pieces in the World
album: Classical Music for Valentines Day: The Best Romantic Classical Music Masterpieces for the Beautiful One You Love
album: Música clásica para el día de la boda perfecta: La mejor y más hermosa colección de música para la novia, ceremonia y la recepción
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album: Música clásica para el estudio del examen : El sistema de aprendizaje Alfa para aumentar el poder del cerebro y la revisión de relajación
album: Classical Music 50: The Fifty Best Masterpieces from the Most Famous Composers In The World
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album: Música clásica de piano para relajarse: Relajarse con las mejores piezas de música clásica de todos los tiempos
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album: Classical FM: An Introduction To The Best and Most Famous Classic Music For Millennials
album: Música clásica para día de San Valentín: Las mejores obras maestras de la música clásica romántica de la hermosa persona que amas
album: Klassische Musik 50: Die Größten Werke der Klassischen Musik
album: Classical Music For Exam Study: The Alpha Learning System for Increasing Brain Power and Relaxation Revision
album: Piano clásico para el bebé 50: La mejor música calmante para un embarazo relajante, el tiempo de juego y la hora de dormir
album: La musique de piano classique pour la détente: Détendez-vous avec les meilleurs morceaux de musique classique de tous les temps
album: Klassische Klavier für Baby 50: Die besten beruhigende Musik für Kinder und eine entspannende Schwangerschaft, Spielzeit und erholsamen Schlaf vor dem Schlafengehen
album: Klassische Klaviermusik zur Entspannung: Entspannen Sie sich mit der besten Stücke der klassischen Musik aller Zeiten
album: Classical Music for Your Perfect Wedding Day: The Best and most Beautiful Collection of Music for the Perfect Arrival, Ceremony and Reception
album: Deep Ambient Moods, Vol. 1: Sounds of Calm
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album: Классическая музыка для Дня Святого Валентина : лучшие романтические классическая музыка шедевры для красивой любви в вашей жизни
album: Классическая фортепиано младенца 50: Лучший успокаивающая музыка для детей и отдыха беременность, игровое время и успокоительным сном сна
album: Klassische Musik zum Valentinstag : Die besten romantischen Meisterwerke der klassischen Musik für das schöne Liebe in Ihrem Leben
album: ベストベートーベンピアノ音楽:ルートヴィヒ·ヴァン·ベートーヴェンによって過去最大の小品

The Barber of Seville: "Overture"
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Nocturne in E-Flat Major, Op. 9, No. 2
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Berceuse Op. 57
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怀孕音乐:从西面为未出生的婴儿最好的古典钢琴音乐
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Terry Riley: In C (Live at the Roundchapel)
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Peer Gynt, Op. 23, No. 1 I: In the Hall of the Mountain King (I Dovregubbens hall)
type: MusicRecording
duration: PT2M39S
duration ms: 159274
explicit: false
by artist: Edvard Grieg
by artist: Metropolitan Philharmonic Orchestra
by artist: Bernhard Jarvis
in album: Musique classique 50 : Les cinquante meilleurs chefs-d'œuvre de compositeurs les plus célèbres dans le monde les
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  date published: 2015-03-02
genre: classical
genre: late-romantic-era
genre: norwegian-classical
isrc code: GBG3H1500106
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8961d11ebd27efecd1705d1608e1d4666737bb80ce4b8376c96b6df6e180dfb. 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/GBG3H1500106.
  date published: 2026-07-02T03:55:08Z
audio: Peer Gynt, Op. 23, No. 1 I: In the Hall of the Mountain King (I Dovregubbens hall)
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Suite bergamasque, L 75: III. Clair de lune
type: MusicRecording
duration: PT4M42S
duration ms: 282623
explicit: false
by artist: Claude Debussy
by artist: Robert Einstein
in album: Musique classique 50 : Les cinquante meilleurs chefs-d'œuvre de compositeurs les plus célèbres dans le monde les
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  date published: 2015-03-02
genre: classical
genre: impressionism
genre: post-romantic-era
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b7e2ea20117a2238c7f689d22efe0dfd4f20eae8da5e69a85ac63b9cbfb85f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBG3H1488009.
  date published: 2026-07-13T07:53:33Z
audio: Suite bergamasque, L 75: III. Clair de lune
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Orpheus In The Underworld: The Can Can
type: MusicRecording
duration: PT3M16S
duration ms: 196554
explicit: false
by artist: Jacques Offenbach
by artist: Metropolitan Philharmonic Orchestra
by artist: Bernhard Jarvis
in album: Musique classique 50 : Les cinquante meilleurs chefs-d'œuvre de compositeurs les plus célèbres dans le monde les
  type: MusicAlbum
  date published: 2015-03-02
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697757825df985703a38946baa2a91ddaea4d8fececcbcc33cb12003fb45c839. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBG3H1500107.
  date published: 2026-07-07T14:50:41Z
audio: Orpheus In The Underworld: The Can Can
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The Magic Flute, K.620: Overture
type: MusicRecording
duration: PT6M42S
duration ms: 402696
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Metropolitan Philharmonic Orchestra
by artist: Bernhard Jarvis
in album: Musique classique 50 : Les cinquante meilleurs chefs-d'œuvre de compositeurs les plus célèbres dans le monde les
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  date published: 2015-03-02
genre: classical
genre: classical-era
isrc code: GBG3H1500110
additional property: CopyrightID
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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
  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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9534a765b0b52ef02e6c3b0b7ecf2b57a9a5a1412317f02cf5fb546768cb087. 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/GBG3H1500110.
  date published: 2026-07-08T03:20:19Z
audio: The Magic Flute, K.620: Overture
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  additional property: Danceability
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The Blue Danube, Op. 314
type: MusicRecording
duration: PT9M58S
duration ms: 598271
explicit: false
by artist: Johann Strauss II
by artist: Metropolitan Philharmonic Orchestra
by artist: Bernhard Jarvis
in album: Musique classique 50 : Les cinquante meilleurs chefs-d'œuvre de compositeurs les plus célèbres dans le monde les
  type: MusicAlbum
  date published: 2015-03-02
isrc code: GBG3H1500111
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
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c91206ad4207f7d7584dba76f8e02003b92137923ca857fe5ea3efd43c67aa4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBG3H1500111.
  date published: 2026-06-13T12:53:06Z
audio: The Blue Danube, Op. 314
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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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: Valence (Positivity)
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Canon in D Major
type: MusicRecording
duration: PT3M33S
duration ms: 213717
explicit: false
by artist: Johann Pachelbel
by artist: The Pimlico Quartet
in album: Musique classique 50 : Les cinquante meilleurs chefs-d'œuvre de compositeurs les plus célèbres dans le monde les
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  date published: 2015-03-02
isrc code: GBG3H1500006
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
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additional property: OTSVerificationAPI
  type: PropertyValue
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Canon in D Major
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  additional property: Danceability
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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: Valence (Positivity)
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Coriolan Ovedrture, Op. 62
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duration: PT8M20S
duration ms: 500398
explicit: false
by artist: Ludwig van Beethoven
by artist: Metropolitan Philharmonic Orchestra
by artist: Bernhard Jarvis
in album: Musique classique 50 : Les cinquante meilleurs chefs-d'œuvre de compositeurs les plus célèbres dans le monde les
  type: MusicAlbum
  date published: 2015-03-02
genre: classical
genre: classical-piano
genre: chamber-music
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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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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2a914c103f234d82b1de8800eb6282e420889458a3e7e0a8addeb28d06e93f. 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/GBG3H1500112.
  date published: 2026-07-02T03:30:09Z
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Carmen Suite No.2: Habanera
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Toccata and Fugue in D Minor BWV.565
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William Tell: Overture
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Nocturne in E-Flat Major Op. 9, No. 2
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The Marriage of Figaro, K. 492: Act I. - Overture
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Panis Angelicus
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Bagatelle No. 25 in A Minor, WoO 59: Für Elise
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Peter and the Wolf, Op.67 I:Introduction
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Pictures At An Exhibition: I. Promenade
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Peer Gynt, Op. 23: No. 13 Morning Mood - "Morgenstemning"
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Norma, Act I: Casta Diva
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Divertimento No. 17 in D Major, K 251: VI. Allegro
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Sleeping Beauty, Op. 66: V. Waltz
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A Midsummer Night's Dream, Op.61 IX: Wedding March
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subject of: OpenTimestamps Proof of Existence
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audio: A Midsummer Night's Dream, Op.61 IX: Wedding March
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Rhapsody on a Theme of Paganini, Op. 43 XX: Variation 18 - Andante cantabile
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Soloman HWV 67, Act 3: The Arrival of the Queen of Sheba
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Piano Sonata No. 14 in C-Sharp Minor I. - Adagio sostenuto 'Moonlight'
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T11:02:43Z
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Classical Piano for Baby 50: The Best Soothing Music for Children and a Relaxing Pregnancy, Playtime and Restful Bedtime Sleep
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track: Berceuse, Op. 16
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track: Scenes from Childhood, Op. 15: No. 7, Träumerei
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track: The Carnival of the Animals: XIV. The Swan
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OpenTimestamps Proof of Existence
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date published: 2026-07-07T16:43:21Z

Scenes from Childhood, Op. 15: No. 7, Träumerei
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The Carnival of the Animals: XIV. The Swan
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: The Carnival of the Animals: XIV. The Swan
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Gymnopédies No. 1
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Gymnopédies No. 1
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Gymnopédies No. 3
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Gymnopédies No. 3
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Goldberg Variations, BWV 988: Aria
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Goldberg Variations, BWV 988: Aria
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Suite Española, Op. 47: I. Granada
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Suite Española, Op. 47: I. Granada
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Sixteen Waltzes, Op. 39: No. 15
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Sixteen Waltzes, Op. 39: No. 15
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Thaïs, Act II: "Méditation"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Thaïs, Act II: "Méditation"
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Was mir behagt, ist nur die muntre Jagd, BWV 208: Sheep May Safely Graze
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Réverie
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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Piano Sonata No. 15 in F Major, K.533: II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Piano Sonata No. 15 in F Major, K.533: II. Andante
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Scenes from Childhood, Op. 15: No. 12, Child Falling Asleep
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Scenes from Childhood, Op. 15: No. 12, Child Falling Asleep
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Pavane pour une infante défunte
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Pavane pour une infante défunte
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Ave Maria
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Ave Maria
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La fille aux cheveux de lin
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: La fille aux cheveux de lin
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Piano Sonata No. 26 in E-Flat Major, Op. 81a: II. Andante espressivo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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Berceuse, Op. 57
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Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
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Salut d’amour, Op. 12
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audio: Salut d’amour, Op. 12
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Gnossienne No. 1
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Minuet in G Major, BWV Anh 114
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The Best Classical Music:50 of the Most Famous and best loved pieces in the World
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track: Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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Eine Kleine Nachtmusik Serenade In G Major, K 525 I. - Allegro
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Suite No. 3 in D Major, BMV 1068:II. Air On A G String
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Overture 1812, Op. 49.
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Peer Gynt, Op. 23, No. 1 I: In the Hall of the Mountain King (I Dovregubbens hall)
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Suite bergamasque, L 75: III. Clair de lune
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Orpheus In The Underworld: The Can Can
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genre: french-romanticism
genre: operetta
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Orpheus In The Underworld: The Can Can
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The Magic Flute, K.620: Overture
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by artist: Wolfgang Amadeus Mozart
by artist: Metropolitan Philharmonic Orchestra
in album: The Best Classical Music:50 of the Most Famous and best loved pieces in the World
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: The Magic Flute, K.620: Overture
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The Blue Danube, Op. 314
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duration ms: 598271
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by artist: Metropolitan Philharmonic Orchestra
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T13:25:45Z
audio: The Blue Danube, Op. 314
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Canon in D Major
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by artist: The Pimlico Quartet
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Canon in D Major
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Coriolan Ovedrture, Op. 62
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by artist: Metropolitan Philharmonic Orchestra
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Coriolan Ovedrture, Op. 62
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Carmen Suite No.2: Habanera
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by artist: Metropolitan Philharmonic Orchestra
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genre: classical
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Carmen Suite No.2: Habanera
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Toccata and Fugue in D Minor BWV.565
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by artist: Julian Brown
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Toccata and Fugue in D Minor BWV.565
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William Tell: Overture
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by artist: Metropolitan Philharmonic Orchestra
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: William Tell: Overture
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Nocturne in E-Flat Major Op. 9, No. 2
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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The Marriage of Figaro, K. 492: Act I. - Overture
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: The Marriage of Figaro, K. 492: Act I. - Overture
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Panis Angelicus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Panis Angelicus
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Peer Gynt, Op. 23: No. 13 Morning Mood - "Morgenstemning"
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subject of: OpenTimestamps Proof of Existence
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audio: Peer Gynt, Op. 23: No. 13 Morning Mood - "Morgenstemning"
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Norma, Act I: Casta Diva
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  date published: 2026-07-08T03:53:27Z
audio: Norma, Act I: Casta Diva
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A Midsummer Night's Dream, Op.61 IX: Wedding March
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audio: A Midsummer Night's Dream, Op.61 IX: Wedding March
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Piano Sonata No. 14 in C-Sharp Minor I. - Adagio sostenuto 'Moonlight'
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subject of: OpenTimestamps Proof of Existence
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audio: Piano Sonata No. 14 in C-Sharp Minor I. - Adagio sostenuto 'Moonlight'
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Classical Music for Valentines Day: The Best Romantic Classical Music Masterpieces for the Beautiful One You Love
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track: Suite No. 3 in D Major, BMV 1068:II. Air On A G String
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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track: Rhapsody on a Theme of Paganini, Op. 43 XX: Variation 18 - Andante cantabile
track: Nocturne in E-Flat Major Op. 9, No. 2
track: Suite bergamasque, L 75: III. Clair de lune
track: Peer Gynt, Op. 23: No. 13 Morning Mood - "Morgenstemning"
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track: Pavane pour une infante défunte
track: Berceuse Op. 57
track: Norma, Act I: Casta Diva

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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-07T16:43:08Z

Canon in D Major
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Rhapsody on a Theme of Paganini, Op. 43 XX: Variation 18 - Andante cantabile
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Rhapsody on a Theme of Paganini, Op. 43 XX: Variation 18 - Andante cantabile
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Nocturne in E-Flat Major Op. 9, No. 2
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Nocturne in E-Flat Major Op. 9, No. 2
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Suite bergamasque, L 75: III. Clair de lune
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subject of: OpenTimestamps Proof of Existence
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Peer Gynt, Op. 23: No. 13 Morning Mood - "Morgenstemning"
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Piano Sonata No. 14 in C-Sharp Minor I. - Adagio sostenuto 'Moonlight'
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Pavane pour une infante défunte
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Norma, Act I: Casta Diva
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Música clásica para el día de la boda perfecta: La mejor y más hermosa colección de música para la novia, ceremonia y la recepción
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track: Messiah: Part II No. 20 Hallelujah!
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track: Peer Gynt, Op. 23: No. 13 Morning Mood - "Morgenstemning"
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track: Canon in D Major
track: The Blue Danube, Op. 314
track: The Marriage of Figaro, K. 492: Act I. - Overture

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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983b786416fb957e429d71e657071c3a24dd82b500a7f95f92400a442c61b21f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBG3H1500001.
date published: 2026-07-08T08:56:20Z

Peer Gynt, Op. 23: No. 13 Morning Mood - "Morgenstemning"
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 113.342
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: 0.127
additional property: Energy
  type: PropertyValue
  value: 0.094
additional property: Speechiness
  type: PropertyValue
  value: 0.044
additional property: Acousticness
  type: PropertyValue
  value: 0.964
additional property: Instrumentalness
  type: PropertyValue
  value: 0.885
additional property: Liveness
  type: PropertyValue
  value: 0.109
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.035
additional property: Loudness (dB)
  type: PropertyValue
  value: -19.558
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Major

Canon in D Major
type: MusicRecording
duration: PT3M33S
duration ms: 213717
explicit: false
by artist: Johann Pachelbel
by artist: The Pimlico Quartet
in album: Música clásica para el día de la boda perfecta: La mejor y más hermosa colección de música para la novia, ceremonia y la recepción
  type: MusicAlbum
  date published: 2015-02-23
popularity: 3
isrc code: GBG3H1500006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T16:01:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x69330415661c921addc74b18c389cb5ac914a7604c80571a2b85b6189e72e018
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBG3H1500006
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69330415661c921addc74b18c389cb5ac914a7604c80571a2b85b6189e72e018. 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/GBG3H1500006.
  date published: 2026-07-08T03:20:19Z
audio: Canon in D Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.499
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.176
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.443
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.841
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.082
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.974
  additional property: Key Name
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    value: D
  additional property: Mode Name
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    value: Major

The Blue Danube, Op. 314
type: MusicRecording
duration: PT9M58S
duration ms: 598271
explicit: false
by artist: Johann Strauss II
by artist: Metropolitan Philharmonic Orchestra
in album: Música clásica para el día de la boda perfecta: La mejor y más hermosa colección de música para la novia, ceremonia y la recepción
  type: MusicAlbum
  date published: 2015-02-23
popularity: 1
isrc code: GBG3H1500111
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T14:17:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c91206ad4207f7d7584dba76f8e02003b92137923ca857fe5ea3efd43c67aa4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBG3H1500111
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c91206ad4207f7d7584dba76f8e02003b92137923ca857fe5ea3efd43c67aa4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBG3H1500111.
  date published: 2026-07-08T03:53:27Z
audio: The Blue Danube, Op. 314
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.308
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.363
  additional property: Energy
    type: PropertyValue
    value: 0.173
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.958
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.921
  additional property: Liveness
    type: PropertyValue
    value: 0.119
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.201
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.183
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Marriage of Figaro, K. 492: Act I. - Overture
type: MusicRecording
duration: PT4M2S
duration ms: 242289
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Metropolitan Philharmonic Orchestra
in album: Música clásica para el día de la boda perfecta: La mejor y más hermosa colección de música para la novia, ceremonia y la recepción
  type: MusicAlbum
  date published: 2015-02-23
popularity: 25
genre: classical
genre: classical-era
isrc code: GBG3H1500118
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T21:02:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa0aad3e8049bf29b41408aa75c6a02a2510a019f38758b39c5232610751c2845
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBG3H1500118
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0aad3e8049bf29b41408aa75c6a02a2510a019f38758b39c5232610751c2845. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBG3H1500118.
  date published: 2026-06-13T15:41:10Z
audio: The Marriage of Figaro, K. 492: Act I. - Overture
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.929
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.357
  additional property: Energy
    type: PropertyValue
    value: 0.275
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.645
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.898
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.269
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.772
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Keep Calm With Classical Music: 40 of the Most Relaxing & Popular Classical Pieces of All Time
type: MusicAlbum
date published: 2015-01-19
track: Peer Gynt, Op. 23: No. 13 Morning Mood - "Morgenstemning"
  type: MusicRecording
  duration: PT3M48S
  duration ms: 228778
  explicit: false
  by artist: Edvard Grieg
  by artist: Metropolitan Philharmonic Orchestra
  in album: Keep Calm With Classical Music: 40 of the Most Relaxing & Popular Classical Pieces of All Time
    type: MusicAlbum
    date published: 2015-01-19
  genre: classical
  genre: late-romantic-era
  genre: norwegian-classical
  isrc code: GBG3H1500001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T07:11:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x983b786416fb957e429d71e657071c3a24dd82b500a7f95f92400a442c61b21f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957073
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957073
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBG3H1500001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T18:39:05Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983b786416fb957e429d71e657071c3a24dd82b500a7f95f92400a442c61b21f. 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/GBG3H1500001.
    date published: 2026-07-07T18:39:05Z
  audio: Peer Gynt, Op. 23: No. 13 Morning Mood - "Morgenstemning"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 114.756
    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: 0.136
    additional property: Energy
      type: PropertyValue
      value: 0.094
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.966
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.892
    additional property: Liveness
      type: PropertyValue
      value: 0.109
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.035
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.56
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Suite No. 3 in D Major, BMV 1068: II. Air On a G String
  type: MusicRecording
  duration: PT5M3S
  duration ms: 303103
  explicit: false
  by artist: Johann Sebastian Bach
  by artist: The Pimlico Quartet
  in album: Keep Calm With Classical Music: 40 of the Most Relaxing & Popular Classical Pieces of All Time
    type: MusicAlbum
    date published: 2015-01-19
  genre: classical
  genre: classical-piano
  isrc code: GBG3H1500002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T13:03:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfd0569790cc304a26b706154ad64a7b928b8cf2e028576dc5ad08eb176b2dddb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBG3H1500002
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0569790cc304a26b706154ad64a7b928b8cf2e028576dc5ad08eb176b2dddb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBG3H1500002.
    date published: 2026-07-08T03:22:41Z
  audio: Suite No. 3 in D Major, BMV 1068: II. Air On a G String
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 165.621
    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: 0.086
    additional property: Energy
      type: PropertyValue
      value: 0.2
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.876
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.098
    additional property: Liveness
      type: PropertyValue
      value: 0.108
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.097
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.338
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Norma, Act I: Casta Diva
  type: MusicRecording
  duration: PT4M38S
  duration ms: 278463
  explicit: false
  by artist: Vincenzo Bellini
  by artist: Metropolitan Philharmonic Orchestra
  in album: Keep Calm With Classical Music: 40 of the Most Relaxing & Popular Classical Pieces of All Time
    type: MusicAlbum
    date published: 2015-01-19
  genre: opera
  isrc code: GBG3H1500004
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T18:46:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x57150b0da397439047efef908bcfd71e2920b7363fd4233dc5d73d2efd08aa05
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  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Norma, Act I: Casta Diva
track: Canon in D Major
track: Nocturne in E-Flat Major Op. 9, No. 2
track: Panis Angelicus
track: Piano Sonata No. 14 in C-Sharp Minor I. - Adagio sostenuto 'Moonlight'

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957120

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957120

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBG3H1500004

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57150b0da397439047efef908bcfd71e2920b7363fd4233dc5d73d2efd08aa05. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBG3H1500004.
date published: 2026-07-08T03:22:41Z

Norma, Act I: Casta Diva
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 143.395
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: 0.196
additional property: Energy
  type: PropertyValue
  value: 0.282
additional property: Speechiness
  type: PropertyValue
  value: 0.037
additional property: Acousticness
  type: PropertyValue
  value: 0.925
additional property: Instrumentalness
  type: PropertyValue
  value: 0.871
additional property: Liveness
  type: PropertyValue
  value: 0.109
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.045
additional property: Loudness (dB)
  type: PropertyValue
  value: -15.904
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Major

Canon in D Major
type: MusicRecording
duration: PT3M33S
duration ms: 213717
explicit: false
by artist: Johann Pachelbel
by artist: The Pimlico Quartet
in album: Keep Calm With Classical Music: 40 of the Most Relaxing & Popular Classical Pieces of All Time
  type: MusicAlbum
  date published: 2015-01-19
isrc code: GBG3H1500006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Nocturne in E-Flat Major Op. 9, No. 2
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by artist: Bernhard Jarvis
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Nocturne in E-Flat Major Op. 9, No. 2
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Panis Angelicus
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by artist: The Portobello String Ensemble
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Panis Angelicus
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Piano Sonata No. 14 in C-Sharp Minor I. - Adagio sostenuto 'Moonlight'
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Piano Sonata No. 14 in C-Sharp Minor I. - Adagio sostenuto 'Moonlight'
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Música clásica para el estudio del examen : El sistema de aprendizaje Alfa para aumentar el poder del cerebro y la revisión de relajación
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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track: Canon in D Major
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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track: Soloman HWV 67, Act 3: The Arrival of the Queen of Sheba
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T08:56:20Z

Soloman HWV 67, Act 3: The Arrival of the Queen of Sheba
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OpenTimestamps Proof of Existence
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Peer Gynt, Op. 23, No. 1 I: In the Hall of the Mountain King (I Dovregubbens hall)
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The Blue Danube, Op. 314
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Coriolan Ovedrture, Op. 62
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Carmen Suite No.2: Habanera
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Toccata and Fugue in D Minor BWV.565
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William Tell: Overture
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Nocturne in E-Flat Major Op. 9, No. 2
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The Marriage of Figaro, K. 492: Act I. - Overture
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Peer Gynt, Op. 23: No. 13 Morning Mood - "Morgenstemning"
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Sleeping Beauty, Op. 66: V. Waltz
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Piano classique pour bébé 50: Le meilleur de la musique apaisante pour les enfants et une grossesse de détente, la récréation et l'heure du coucher sommeil réparateur
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Música clásica de piano para relajarse: Relajarse con las mejores piezas de música clásica de todos los tiempos
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Classical Music for the Best Sleep: Relaxing Sleeping Aid for Insomnia and Mindfull Nightime Healing and Well-Being
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Classical FM: An Introduction To The Best and Most Famous Classic Music For Millennials
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Música clásica para día de San Valentín: Las mejores obras maestras de la música clásica romántica de la hermosa persona que amas
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Klassische Musik 50: Die Größten Werke der Klassischen Musik
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Classical Music For Exam Study: The Alpha Learning System for Increasing Brain Power and Relaxation Revision
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Piano clásico para el bebé 50: La mejor música calmante para un embarazo relajante, el tiempo de juego y la hora de dormir
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La musique de piano classique pour la détente: Détendez-vous avec les meilleurs morceaux de musique classique de tous les temps
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Klassische Klavier für Baby 50: Die besten beruhigende Musik für Kinder und eine entspannende Schwangerschaft, Spielzeit und erholsamen Schlaf vor dem Schlafengehen
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Klassische Klaviermusik zur Entspannung: Entspannen Sie sich mit der besten Stücke der klassischen Musik aller Zeiten
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Classical Music for Your Perfect Wedding Day: The Best and most Beautiful Collection of Music for the Perfect Arrival, Ceremony and Reception
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Deep Ambient Moods, Vol. 1: Sounds of Calm
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Musique classique pour la Saint-Valentin : Les meilleurs chefs-d'œuvre romantiques de musique classique pour la belle amour dans votre vie
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Классическая музыка для Дня Святого Валентина : лучшие романтические классическая музыка шедевры для красивой любви в вашей жизни
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Классическая фортепиано младенца 50: Лучший успокаивающая музыка для детей и отдыха беременность, игровое время и успокоительным сном сна
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Klassische Musik zum Valentinstag : Die besten romantischen Meisterwerke der klassischen Musik für das schöne Liebe in Ihrem Leben
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ベストベートーベンピアノ音楽:ルートヴィヒ·ヴァン·ベートーヴェンによって過去最大の小品
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