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album: 바흐 인벤션 15곡 Bach Invention 15 Songs BWV 772 ~ 786
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  date published: 2020-12-07
album: 쇼팽 발라드 전곡 Chopin Ballade No.1 ~ 4
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  date published: 2020-12-14
album: 쇼팽 스케르초 전곡 Chopin Scherzo No.1 ~ 4
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album: 쇼팽 에튀드 Op.10 전곡 Chopin Etude Op.10 No.1 ~ 12
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  track: 쇼팽 에튀드 Op.10 - 12번 (혁명) Chopin Etude Op.10 No.12 Chopin Etude Op.10 No.12 (Revolutionary)
album: 쇼팽 에튀드 Op.25 전곡 Chopin Etude Op.25 No.1 ~ 12
album: 커피에서 음악으로 (피아노 10곡) 제1화 - 추억 From coffee to music (Piano 10 Songs) Episode 1 - Memories
album: 커피에서 음악으로 (피아노 10곡) 제2화 - 기쁨 From coffee to music (Piano 10 Songs) Episode 2 - Joy
album: 쇼팽 - 야상곡 (Chopin - Nocturne Op.9 No.2 In E Flat Major)
album: 드뷔시 - 달빛 (Debussy - Claire de lune)
album: 쇼팽 - 빗방울 전주곡 (Chopin - Prelude No.15 Op.28 in D flat Major (Raindrop))
album: 슈만 - 트로이메라이 (Schumann - Kinderszenen Op.15 No.7 (Traumerei))
album: 모차르트 - 작은별 변주곡 (Mozart - 12 Variations on (Ah vous dirai-je, Maman) K.265)
album: 드뷔시 - 아라베스크 1번 (Debussy - Arabesque No.1)
album: 베토벤 - 비창 2악장 (Beethoven Sonata No.8 in C Minor, Op.13 (Pathetique) - 2nd Adagio cantabile)
album: 에릭사티 - 짐노페디 1번 (Erik Satie - Gymnopedie No.1)
album: 모차르트 - 피아노 소나타 16번 1악장 (Mozart Piano Sonata in C major No.16 K.545 - 1st Allegro)
album: 쇼팽 - 강아지 왈츠 Op.64 - 1번 (Chopin Waltz Op.64 No.1 (Minute Waltz)) Mozart Piano Sonata in C major No.16 K.545 - 1st Allegro
album: 베토벤 피아노 소나타 - 8번 (비창) Beethoven Piano Sonata No.8 Op.13 (Pathetique) Beethoven Piano Sonata - No.8 in C Minor, Op.13 (Pathetique)
album: 베토벤 피아노 소나타 - 14번 (월광) Beethoven Piano Sonata No.14 Op.27 (Moonlight) Beethoven Piano Sonata No.14 in C Sharp Minor, Op.27 (Moonlight)
album: 2021 Merry Christmas Warm Piano
album: From coffee to music Episode 3 - Sadness
album: Debussy - Ballade
album: Isaac Albeniz Barcarolle Catalane Op. 23
album: Mozart - Symphony No. 1 in E flat, K. 16 - 2. Andante
track: Burgmuller Op.100 No.2 - Arabesque
track: Burgmuller Op.100 No.5 - Innocence
track: Burgmuller Op.100 No.12 - Adieu
track: Burgmuller Op.100 No.1 - La Candeur
track: Burgmuller Op.100 No.3 - Pastorale
track: Burgmuller Op.100 No.4 - Petite reunion
track: Burgmuller Op.100 No.6 - Progres
track: Burgmuller Op.100 No.8 - La gracieuse
track: Burgmuller Op.100 No.9 - La chasse
track: Burgmuller Op.100 No.11 - La bergeronette
track: Burgmuller Op.100 No.15 - Ballade
track: Burgmuller Op.100 No.16 - Douce plainte

Burgmuller Op.100 No.2 - Arabesque
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  date published: 2026-07-02T03:55:08Z
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Burgmuller Op.100 No.5 - Innocence
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Burgmuller Op.100 No.12 - Adieu
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  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776ae4d8b85fe5a651ba1a5c4a451a4c40747dcc31116f87b05e2e4c2584280c. 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/KRB920900214.
  date published: 2026-07-08T03:22:41Z
audio: Burgmuller Op.100 No.12 - Adieu
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  additional property: Danceability
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  additional property: Valence (Positivity)
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Burgmuller Op.100 No.1 - La Candeur
type: MusicRecording
duration: PT1M15S
duration ms: 75692
explicit: false
by artist: Friedrich Burgmüller
by artist: Melody Studio
in album: Burgmuller - 25 Etudes Faciles et Progressives, Op.100
  type: MusicAlbum
  date published: 2023-03-21
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2159a006fc867bf9a51f88535730a73af9c85fbfeba0398d2468ad87b8a4731. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/KRB920900203.
  date published: 2026-07-31T09:25:34Z
audio: Burgmuller Op.100 No.1 - La Candeur
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.444
  additional property: Musical Key
    type: PropertyValue
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  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: 0.693
  additional property: Energy
    type: PropertyValue
    value: 0.226
  additional property: Speechiness
    type: PropertyValue
    value: 0.074
  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.915
  additional property: Liveness
    type: PropertyValue
    value: 0.158
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.937
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.554
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: KRB920900203
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB920900203
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:25:34+00:00
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

Burgmuller Op.100 No.3 - Pastorale
type: MusicRecording
duration: PT1M10S
duration ms: 70200
explicit: false
by artist: Friedrich Burgmüller
by artist: Melody Studio
in album: Burgmuller - 25 Etudes Faciles et Progressives, Op.100
  type: MusicAlbum
  date published: 2023-03-21
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e5d1d3d4a03bf7887d13300c9d6751d30099a669b510f3c0e215d2a56030e5. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/KRB920900205.
  date published: 2026-07-31T13:50:38Z
audio: Burgmuller Op.100 No.3 - Pastorale
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.991
  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: 0.777
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.996
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.945
  additional property: Liveness
    type: PropertyValue
    value: 0.291
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.887
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.191
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: KRB920900205
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB920900205
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:50:38+00:00
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

Burgmuller Op.100 No.4 - Petite reunion
type: MusicRecording
duration: PT1M41S
duration ms: 101333
explicit: false
by artist: Friedrich Burgmüller
by artist: Melody Studio
in album: Burgmuller - 25 Etudes Faciles et Progressives, Op.100
  type: MusicAlbum
  date published: 2023-03-21
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040e843a72f2399273ac2116c72d9bf078abd9b78cd2e5dff2375ee496d2b80e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/KRB920900206.
  date published: 2026-08-01T03:13:03Z
audio: Burgmuller Op.100 No.4 - Petite reunion
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 141.81
  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: 0.788
  additional property: Energy
    type: PropertyValue
    value: 0.264
  additional property: Speechiness
    type: PropertyValue
    value: 0.069
  additional property: Acousticness
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    value: 0.994
  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.932
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.796
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: KRB920900206
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960500
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-08-01T03:13:03+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB920900206
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:13:03+00:00
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

Burgmuller Op.100 No.6 - Progres
type: MusicRecording
duration: PT1M4S
duration ms: 64614
explicit: false
by artist: Friedrich Burgmüller
by artist: Melody Studio
in album: Burgmuller - 25 Etudes Faciles et Progressives, Op.100
  type: MusicAlbum
  date published: 2023-03-21
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bc41e180e16b8ee192733f62f5ec95439797b85f1c9ee06ed5e9a5bbc9593a. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/KRB920900208.
  date published: 2026-07-31T08:38:45Z
audio: Burgmuller Op.100 No.6 - Progres
  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
    value: 5
  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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    value: 0.862
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.977
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: KRB920900208
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB920900208
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960370
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:38:45+00:00
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

Burgmuller Op.100 No.8 - La gracieuse
type: MusicRecording
duration: PT1M3S
duration ms: 63600
explicit: false
by artist: Friedrich Burgmüller
by artist: Melody Studio
in album: Burgmuller - 25 Etudes Faciles et Progressives, Op.100
  type: MusicAlbum
  date published: 2023-03-21
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251c0e32f324c01b61f28a07b19271eb3c21df37cdb0bc6cce6475da1ad3d451. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/KRB920900210.
  date published: 2026-07-31T21:25:57Z
audio: Burgmuller Op.100 No.8 - La gracieuse
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.02
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.722
  additional property: Energy
    type: PropertyValue
    value: 0.166
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.917
  additional property: Liveness
    type: PropertyValue
    value: 0.197
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.679
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.287
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: KRB920900210
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960468
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T21:25:57+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB920900210
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960468
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960468
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T21:25:57+00:00
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

Burgmuller Op.100 No.9 - La chasse
type: MusicRecording
duration: PT1M17S
duration ms: 77250
explicit: false
by artist: Friedrich Burgmüller
by artist: Melody Studio
in album: Burgmuller - 25 Etudes Faciles et Progressives, Op.100
  type: MusicAlbum
  date published: 2023-03-21
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21b69a1e70ede869add510ccd5eece3b8ad6a1a5a4ed1057de7c516d584d683. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/KRB920900211.
  date published: 2026-07-31T17:29:52Z
audio: Burgmuller Op.100 No.9 - La chasse
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 158.794
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.609
  additional property: Energy
    type: PropertyValue
    value: 0.141
  additional property: Speechiness
    type: PropertyValue
    value: 0.063
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.94
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.727
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.373
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: KRB920900211
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960441
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T17:29:52+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRB920900211
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52+00:00
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

Burgmuller Op.100 No.11 - La bergeronette
type: MusicRecording
duration: PT0M48S
duration ms: 48000
explicit: false
by artist: Friedrich Burgmüller
by artist: Melody Studio
in album: Burgmuller - 25 Etudes Faciles et Progressives, Op.100
  type: MusicAlbum
  date published: 2023-03-21
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66fdbe5ae554067ac736a138a207dba65a619f19273f9173b78b6aefe73fa27. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/KRB920900213.
  date published: 2026-08-01T01:44:32Z
audio: Burgmuller Op.100 No.11 - La bergeronette
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.375
  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: 0.793
  additional property: Energy
    type: PropertyValue
    value: 0.231
  additional property: Speechiness
    type: PropertyValue
    value: 0.064
  additional property: Acousticness
    type: PropertyValue
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additional property: OTSVerifyInstructions
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Burgmuller Op.100 No.15 - Ballade
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duration: PT1M18S
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by artist: Friedrich Burgmüller
by artist: Melody Studio
in album: Burgmuller - 25 Etudes Faciles et Progressives, Op.100
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genre: classical-piano
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T05:15:54Z
audio: Burgmuller Op.100 No.15 - Ballade
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Burgmuller Op.100 No.16 - Douce plainte
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by artist: Friedrich Burgmüller
by artist: Melody Studio
in album: Burgmuller - 25 Etudes Faciles et Progressives, Op.100
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genre: classical-piano
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
audio: Burgmuller Op.100 No.16 - Douce plainte
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쇼팽 에튀드 Op.10 - 12번 (혁명) Chopin Etude Op.10 No.12 Chopin Etude Op.10 No.12 (Revolutionary)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-16T02:28:43Z
audio: 쇼팽 에튀드 Op.10 - 12번 (혁명) Chopin Etude Op.10 No.12 Chopin Etude Op.10 No.12 (Revolutionary)
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쇼팽 에튀드 Op.25 전곡 Chopin Etude Op.25 No.1 ~ 12
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date published: 2021-01-12
track: 쇼팽 에튀드 Op.25 - 1번 (에올리안 하프) Chopin Etude Op.25 No.1 Chopin Etude Op.25 No.1 (Aeolian Harp)
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-16T09:16:54Z
  audio: 쇼팽 에튀드 Op.25 - 1번 (에올리안 하프) Chopin Etude Op.25 No.1 Chopin Etude Op.25 No.1 (Aeolian Harp)
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track: 쇼팽 에튀드 Op.25 - 9번 (나비) Chopin Etude Op.25 No.9 Chopin Etude Op.25 No.9 (Butterfly)
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    date published: 2026-07-13T18:21:16Z
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커피에서 음악으로 (피아노 10곡) 제1화 - 추억 From coffee to music (Piano 10 Songs) Episode 1 - Memories
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date published: 2021-02-17
track: 드뷔시 - 달빛 Debussy - Claire de lune
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-17T06:45:39Z
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슈만 - 트로이메라이 Schumann Kinderszenen Op.15 No.7 (Träumerei)
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모차르트 - 작은별 변주곡 (Mozart - 12 Variations on (Ah vous dirai-je, Maman) K.265)
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