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description: thumb|Undocumented anonymous portrait of J. K. Mertz Joseph Kaspar Mertz (17 August 1806 – 14 October 1856) was a guitarist and composer from the Austrian Empire. Biography Caspar Joseph Mertz (bapti
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album: Mertz: Tonstücke für 2 Gitarren
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album: Mertz: Bardenklange, Op. 13
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album: Mertz: Bardenklange, Op. 13
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album: Mertz: Bardenklange, Op. 13
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  track: Bardenklange, Op. 13: An Malvina (To Malvina)
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  track: Bardenklange, Op. 13: Capriccio
album: Mertz, J.K.: Romantique (Le) / 6 Schubertian Songs / Bardenklange (Excerpts) / Elegie / Fantasie Hongroise
album: J. K. Mertz: Barden-Klänge
album: Harpsichord Recital: Brembeck, Christian - Buxtehude, D. / Reincken, J.A. / Bohm, G. / Bach, J.S. (Der Fantastische Styl)
album: Mertz, J.K.: Bardenklange / Pianto Dell'Amante / Le Romantique / Elegie / Introduction Et Rondo Brillant
album: Mertz, J.K.: Guitar Music
album: Mertz: Guitar Duets
album: J.K. Mertz, 1806-1856: Guitar Duets
album: Nachtviolen in D Major, Op. 2: Scherzo
album: Bardic Song
album: Mertz: The Last Viennese Virtuoso
album: Verdi's Guitar
album: Neuralgia
album: Mertz: Fantasias for Solo Guitar
album: Mertz: Works for Two Guitars
album: Johann Kaspar Mertz: A Guitar Portrait
album: Nocturne No. 1, Op. 4
album: Johann Kaspar Mertz: Three Pieces
album: Mertz: 9 romantic duets
album: Nocturne No. 2, Op 4
album: Johann Kaspar Mertz: Bardenklänge, Op. 13, Books 1 - 11
album: Barcarolle,Op. 41
album: Romanza
album: Einsiedlers Waldglöcklein
album: Elegie
album: J. K. Mertz: Bardenklänge, Op. 13
album: Romanze (Cover)
album: Johann Kaspar Mertz: Opern-Revue op. 8. Complete Selection after Giuseppe Verdi's Operas
album: Mertz: Élégie
album: Nocturne Op. 4, No. 2
album: Unruhe - New Transcriptions for Guitar and Piano
album: Friendly Classical Music That Lets Kids Sleep Well 14
album: Harp Classical Lullabies That Brings Sleep Gently 23
album: Johann Kaspar Mertz: Elegie
track: Tarantella
track: 6 Schubertian Songs (arr. J. Mertz for guitar): Lob der Tranen (Praise of Tears), D. 711 (arr. J. K. Mertz)
track: Bardenklange, Op. 13: Book 3: No. 3. Capriccio
track: Elegie: Elegy
track: Schule für die Guitare - Arr. by Richard Wright and Peter Batchelar
track: Bardenklange, Op. 13: Book 6: No. 1. Tarantelle
track: 3 Morceaux, Op. 65: No. 1. Fantaisie hongroise

Bardenklänge, Op. 13: An Malvina
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Bardenklänge, Op. 13: Abendlied
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Bardenklänge, Op. 13: Gondoliera
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Bardenklänge, Op. 13: Romanze - Moderato, adagio)
type: MusicRecording
duration: PT2M54S
duration ms: 174773
explicit: false
by artist: Johann Kaspar Mertz
in album: J. K. Mertz: Barden-Klänge
  type: MusicAlbum
  date published: 2003-05-01
isrc code: QMZ621402857
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:51:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5def52c7c5cd6483887654733938f64f50b7df314ac091e97ec231456da1587e
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/QMZ621402857
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
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: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5def52c7c5cd6483887654733938f64f50b7df314ac091e97ec231456da1587e. 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/QMZ621402857.
  date published: 2026-07-08T03:20:19Z
audio: Bardenklänge, Op. 13: Romanze - Moderato, adagio)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.392
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.292
  additional property: Energy
    type: PropertyValue
    value: 0.182
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.912
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.17
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.045
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bardenklänge, Op. 13: Mazurka
type: MusicRecording
duration: PT2M54S
duration ms: 174573
explicit: false
by artist: Johann Kaspar Mertz
in album: J. K. Mertz: Barden-Klänge
  type: MusicAlbum
  date published: 2003-05-01
isrc code: QMZ621402858
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:05:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9655ee7a68571a5b5a0220af2dfccf9b7fb80dc8425edddf4743d571aec4451
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/QMZ621402858
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+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
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: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9655ee7a68571a5b5a0220af2dfccf9b7fb80dc8425edddf4743d571aec4451. 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/QMZ621402858.
  date published: 2026-07-08T03:22:41Z
audio: Bardenklänge, Op. 13: Mazurka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.993
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.515
  additional property: Energy
    type: PropertyValue
    value: 0.169
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.867
  additional property: Liveness
    type: PropertyValue
    value: 0.088
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.387
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.004
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bardenklänge, Op. 13: Lied ohne Worte
type: MusicRecording
duration: PT3M33S
duration ms: 213426
explicit: false
by artist: Johann Kaspar Mertz
in album: J. K. Mertz: Barden-Klänge
  type: MusicAlbum
  date published: 2003-05-01
isrc code: QMZ621402863
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:52:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbcc9e526165fdb07f6270055210c76349c0b314f106b435ed21af84eb383d0c5
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/QMZ621402863
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+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
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: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc9e526165fdb07f6270055210c76349c0b314f106b435ed21af84eb383d0c5. 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/QMZ621402863.
  date published: 2026-07-08T03:22:41Z
audio: Bardenklänge, Op. 13: Lied ohne Worte
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.449
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.393
  additional property: Energy
    type: PropertyValue
    value: 0.066
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.913
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.269
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.149
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bardenklänge, Op. 13: Variations mignonnes
type: MusicRecording
duration: PT6M57S
duration ms: 417853
explicit: false
by artist: Johann Kaspar Mertz
in album: J. K. Mertz: Barden-Klänge
  type: MusicAlbum
  date published: 2003-05-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20dcb5e1ecaae12c7047c4acaafd43eafd10fa885c793e67d5b3c966206dd817. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QMZ621402847.
  date published: 2026-07-30T21:35:24Z
audio: Bardenklänge, Op. 13: Variations mignonnes
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 146.067
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.367
  additional property: Energy
    type: PropertyValue
    value: 0.222
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.893
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.429
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.205
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: QMZ621402847
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: 960317
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T21:35:24+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMZ621402847
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960317
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960317
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T21:35:24+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

Bardenklänge, Op. 13: Romanze - Andante, cantabile
type: MusicRecording
duration: PT4M1S
duration ms: 241920
explicit: false
by artist: Johann Kaspar Mertz
in album: J. K. Mertz: Barden-Klänge
  type: MusicAlbum
  date published: 2003-05-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7c462c2be561a27731719b8a795924f1d4df9cfe2f3917faf08a8356fe69c9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMZ621402849.
  date published: 2026-07-31T08:26:41Z
audio: Bardenklänge, Op. 13: Romanze - Andante, cantabile
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.567
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.288
  additional property: Energy
    type: PropertyValue
    value: 0.078
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.77
  additional property: Liveness
    type: PropertyValue
    value: 0.088
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.165
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.574
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: QMZ621402849
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: 960368
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T08:26:41+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMZ621402849
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41+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

Bardenklänge, Op. 13: Scherzo
type: MusicRecording
duration: PT2M17S
duration ms: 137320
explicit: false
by artist: Johann Kaspar Mertz
in album: J. K. Mertz: Barden-Klänge
  type: MusicAlbum
  date published: 2003-05-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f74ccb367543bb86685494c8a4646f852fd991921bc24230089852a72e6690. 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/QMZ621402850.
  date published: 2026-07-31T09:25:34Z
audio: Bardenklänge, Op. 13: Scherzo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.773
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.392
  additional property: Energy
    type: PropertyValue
    value: 0.138
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.914
  additional property: Liveness
    type: PropertyValue
    value: 0.084
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.608
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.389
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: QMZ621402850
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: 960379
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T09:25:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMZ621402850
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960379
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960379
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

Bardenklänge, Op. 13: An die Entfrente
type: MusicRecording
duration: PT3M28S
duration ms: 208480
explicit: false
by artist: Johann Kaspar Mertz
in album: J. K. Mertz: Barden-Klänge
  type: MusicAlbum
  date published: 2003-05-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbb1ba6e20f1fd91f14af389edd3a90b8d53fd185aa97245035f6caa9b0e31a. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QMZ621402851.
  date published: 2026-08-01T03:50:58Z
audio: Bardenklänge, Op. 13: An die Entfrente
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.14
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.351
  additional property: Energy
    type: PropertyValue
    value: 0.113
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.907
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.155
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.818
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: QMZ621402851
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: 960506
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-08-01T03:50:58+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMZ621402851
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960506
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960506
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:50:58+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

Bardenklänge, Op. 13: Capriccio
type: MusicRecording
duration: PT1M36S
duration ms: 96266
explicit: false
by artist: Johann Kaspar Mertz
in album: J. K. Mertz: Barden-Klänge
  type: MusicAlbum
  date published: 2003-05-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf815889e5e788863863bbd23841459ff6902100756cb82c5b048dec512938ebc. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/QMZ621402852.
  date published: 2026-07-31T16:07:24Z
audio: Bardenklänge, Op. 13: Capriccio
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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
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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isrc code: QMZ621402852
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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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
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960429
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T16:07:24+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

Bardenklänge, Op. 13: Kindermärchen
type: MusicRecording
duration: PT6M29S
duration ms: 389720
explicit: false
by artist: Johann Kaspar Mertz
in album: J. K. Mertz: Barden-Klänge
  type: MusicAlbum
  date published: 2003-05-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccc6bd2ca1c12b5b3fae37e8533ab209ddff2d60ec5c3b3253b4c1ca4d748e7. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/QMZ621402854.
  date published: 2026-07-31T15:27:29Z
audio: Bardenklänge, Op. 13: Kindermärchen
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  additional property: Danceability
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  additional property: Energy
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isrc code: QMZ621402854
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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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
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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: 2026-07-31T15:27:29+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

Bardenklänge, Op. 13: Polonaise No. 6
type: MusicRecording
duration: PT4M0S
duration ms: 240946
explicit: false
by artist: Johann Kaspar Mertz
in album: J. K. Mertz: Barden-Klänge
  type: MusicAlbum
  date published: 2003-05-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5e682332e17da3dfc4ca397821cd2aa48410e701743cd7ef31e485157aa798. 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/QMZ621402860.
  date published: 2026-08-01T03:13:03Z
audio: Bardenklänge, Op. 13: Polonaise No. 6
  type: AudioObject
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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
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    value: 0.489
  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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isrc code: QMZ621402860
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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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
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
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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

Bardenklänge, Op. 13: Tarantelle
type: MusicRecording
duration: PT3M33S
duration ms: 213226
explicit: false
by artist: Johann Kaspar Mertz
in album: J. K. Mertz: Barden-Klänge
  type: MusicAlbum
  date published: 2003-05-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb493f979525b4b80888ce3dc77c6194e899a06dd663068bd7eed530c029e708f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QMZ621402862.
  date published: 2026-07-31T15:20:15Z
audio: Bardenklänge, Op. 13: Tarantelle
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  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: Danceability
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: QMZ621402862
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T15:20:15+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMZ621402862
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: 2026-07-31T15:20:15+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

Book No. 1, Op. 13: I. An Malvina (Introduction - Moderato quasi allegretto)
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duration: PT3M49S
duration ms: 229266
explicit: false
by artist: Johann Kaspar Mertz
in album: Johann Kaspar Mertz: Bardenklänge, Op. 13, Books 1 - 11
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  date published: 2022-11-25
isrc code: ITLF52209934
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
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITLF52209934
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
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
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a34571418fc0ba49db26be2fef6b5b88903f28006a62db98987f9e8f0baabb8. 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/ITLF52209934.
  date published: 2026-07-08T03:22:41Z
audio: Book No. 1, Op. 13: I. An Malvina (Introduction - Moderato quasi allegretto)
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  additional property: Loudness (dB)
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Tarantella
type: MusicRecording
duration: PT3M27S
duration ms: 207213
explicit: false
by artist: Johann Kaspar Mertz
by artist: Genevieve Lacey
by artist: Karin Schaupp
in album: Songs Without Words
  type: MusicAlbum
  date published: 2006
popularity: 2
isrc code: AUAB00650272
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xeaf97dce4404df1c7d2c8ed16a10515261bdc22d93e991790f63638e4104c501
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/AUAB00650272
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+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
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
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf97dce4404df1c7d2c8ed16a10515261bdc22d93e991790f63638e4104c501. 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/AUAB00650272.
  date published: 2026-07-08T03:53:27Z
audio: Tarantella
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6 Schubertian Songs (arr. J. Mertz for guitar): Lob der Tranen (Praise of Tears), D. 711 (arr. J. K. Mertz)
type: MusicRecording
duration: PT3M23S
duration ms: 203106
explicit: false
by artist: Franz Schubert
by artist: Johann Kaspar Mertz
by artist: Gabriel Bianco
in album: Guitar Recital: Bianco, Gabriel - Mertz, J.K. / Bach, J.S / Koshkin, N.
  type: MusicAlbum
  date published: 2009-05-26
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: HKI190914801
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
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190914801
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09+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
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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subject of: OpenTimestamps Proof of Existence
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Bardenklange, Op. 13: Book 3: No. 3. Capriccio
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Schule für die Guitare - Arr. by Richard Wright and Peter Batchelar
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Bardenklange, Op. 13: Book 6: No. 1. Tarantelle
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3 Morceaux, Op. 65: No. 1. Fantaisie hongroise
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Bardenklange, Op. 13: Capriccio
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Mertz, J.K.: Romantique (Le) / 6 Schubertian Songs / Bardenklange (Excerpts) / Elegie / Fantasie Hongroise
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date published: 2003-01-01

J. K. Mertz: Barden-Klänge
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date published: 2003-05-01
track: Bardenklänge, Op. 13: An Malvina
track: Bardenklänge, Op. 13: Abendlied
track: Bardenklänge, Op. 13: Gondoliera
track: Bardenklänge, Op. 13: Romanze - Moderato, adagio)
track: Bardenklänge, Op. 13: Mazurka
track: Bardenklänge, Op. 13: Lied ohne Worte
track: Bardenklänge, Op. 13: Variations mignonnes
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track: Bardenklänge, Op. 13: Scherzo
track: Bardenklänge, Op. 13: An die Entfrente
track: Bardenklänge, Op. 13: Capriccio
track: Bardenklänge, Op. 13: Kindermärchen
track: Bardenklänge, Op. 13: Polonaise No. 6
track: Bardenklänge, Op. 13: Tarantelle

Harpsichord Recital: Brembeck, Christian - Buxtehude, D. / Reincken, J.A. / Bohm, G. / Bach, J.S. (Der Fantastische Styl)
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Mertz, J.K.: Bardenklange / Pianto Dell'Amante / Le Romantique / Elegie / Introduction Et Rondo Brillant
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Mertz, J.K.: Bardenklange / Pianto Dell'Amante / Le Romantique / Elegie / Introduction Et Rondo Brillant
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Mertz, J.K.: Guitar Music
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Mertz, J.K.: Guitar Music
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Mertz: Guitar Duets
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J.K. Mertz, 1806-1856: Guitar Duets
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Nachtviolen in D Major, Op. 2: Scherzo
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Bardic Song
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Bardic Song
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Mertz: The Last Viennese Virtuoso
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Verdi's Guitar
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Neuralgia
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Mertz: Fantasias for Solo Guitar
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Mertz: Works for Two Guitars
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Johann Kaspar Mertz: A Guitar Portrait
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Nocturne No. 1, Op. 4
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Johann Kaspar Mertz: Three Pieces
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Mertz: 9 romantic duets
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Nocturne No. 2, Op 4
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Johann Kaspar Mertz: Bardenklänge, Op. 13, Books 1 - 11
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Barcarolle,Op. 41
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Romanza
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Einsiedlers Waldglöcklein
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Elegie
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J. K. Mertz: Bardenklänge, Op. 13
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Romanze (Cover)
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Johann Kaspar Mertz: Opern-Revue op. 8. Complete Selection after Giuseppe Verdi's Operas
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Mertz: Élégie
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Nocturne Op. 4, No. 2
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Unruhe - New Transcriptions for Guitar and Piano
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Friendly Classical Music That Lets Kids Sleep Well 14
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Harp Classical Lullabies That Brings Sleep Gently 23
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Johann Kaspar Mertz: Elegie
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