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genre: opera
description: Axel Köhler (born 1960 in Schwarzenberg, Saxony, East Germany) is a German countertenor and opera director. In 1994, he won the Handel Prize. Since 2009, he has been Artistic Director of the Halle Ope
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Auf dem Berge, da wehet der Wind
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  date published: 2026-07-07T09:18:01Z
audio: Auf dem Berge, da wehet der Wind
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Hansel and Gretel: Abendsegen
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Mass in B Minor, BWV 232, Pt. 2: III. Duet. Et in unum dominum (Soprano, Alto)
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    type: PropertyValue
    value: 0.236
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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    value: -27.507
  additional property: Key Name
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    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

L'Incoronazione di Poppea, SV 308, Act I: scene 11
type: MusicRecording
duration: PT6M46S
duration ms: 406933
explicit: false
by artist: Claudio Monteverdi
by artist: René Jacobs
by artist: Concerto Vocale
by artist: Axel Köhler
in album: Monteverdi: L'incoronazione di Poppea
  type: MusicAlbum
  date published: 1990
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: italian-renaissance
genre: madrigal
genre: renaissance
isrc code: FRZ149020010
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:20:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdcafc04106789f4cd80c61bd43a2d7394a1ed81cb2832c5f03c41e009f703ae0
additional property: OTSHash
additional property: OTSBitcoinBlock
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  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/FRZ149020010
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
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  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 0xdcafc04106789f4cd80c61bd43a2d7394a1ed81cb2832c5f03c41e009f703ae0. 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/FRZ149020010.
  date published: 2026-07-08T08:56:20Z
audio: L'Incoronazione di Poppea, SV 308, Act I: scene 11
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 131.962
  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: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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L'Incoronazione di Poppea, SV 308, Act I: scene 1
type: MusicRecording
duration: PT7M52S
duration ms: 472800
explicit: false
by artist: Claudio Monteverdi
by artist: René Jacobs
by artist: Concerto Vocale
by artist: Axel Köhler
in album: Monteverdi: L'incoronazione di Poppea
  type: MusicAlbum
  date published: 1990
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: italian-renaissance
genre: madrigal
genre: renaissance
isrc code: FRZ149019030
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/0xa8bcb832bb670e83e472a2b99b17bdc70cbdd4c9b374d3fa6c92e25e97f16b96
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/FRZ149019030
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 0xa8bcb832bb670e83e472a2b99b17bdc70cbdd4c9b374d3fa6c92e25e97f16b96. 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/FRZ149019030.
  date published: 2026-07-08T03:53:27Z
audio: L'Incoronazione di Poppea, SV 308, Act I: scene 1
  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
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.153
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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    value: -26.533
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Minor

L'Incoronazione di Poppea, SV 308, Act I: scene 2
type: MusicRecording
duration: PT3M23S
duration ms: 203866
explicit: false
by artist: Claudio Monteverdi
by artist: René Jacobs
by artist: Concerto Vocale
by artist: Axel Köhler
by artist: Guy De Mey
by artist: Gerd Türk
in album: Monteverdi: L'incoronazione di Poppea
  type: MusicAlbum
  date published: 1990
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: italian-renaissance
genre: madrigal
genre: renaissance
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b646901326a820511c6986bde3a7ab2025bebf0fe535adf71cb7353881a044. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FRZ149019040.
  date published: 2026-07-30T14:36:16Z
audio: L'Incoronazione di Poppea, SV 308, Act I: scene 2
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.113
  additional property: Acousticness
    type: PropertyValue
    value: 0.921
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.31
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.369
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.133
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FRZ149019040
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/FRZ149019040
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960264
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960264
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16+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

Mass in B Minor, BWV 232: Domine Deus
type: MusicRecording
duration: PT5M28S
duration ms: 328693
explicit: false
by artist: Johann Sebastian Bach
by artist: René Jacobs
by artist: Hillevi Martinpelto
by artist: Axel Köhler
by artist: Christoph Prégardien
by artist: Akademie für Alte Musik Berlin
in album: Bach: Mass in B Minor, BWV 232
  type: MusicAlbum
  date published: 1993
genre: classical
genre: classical-piano
isrc code: DES380003348
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:51:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x96c0b8eff283cc999da1dfdfe336131fb36b20ad3dd20b85b6c33279d9edaa6d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957064
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957064
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES380003348
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:43:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
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: 957064
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T16:43:08+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 0x96c0b8eff283cc999da1dfdfe336131fb36b20ad3dd20b85b6c33279d9edaa6d. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/DES380003348.
  date published: 2026-07-07T16:43:08Z
audio: Mass in B Minor, BWV 232: Domine Deus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.216
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.441
  additional property: Valence (Positivity)
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    value: 0.311
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.262
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
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Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.083

Valence (Positivity)
type: PropertyValue
value: 0.099

Loudness (dB)
type: PropertyValue
value: -26.828

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

Mass in B Minor BWV 232, Pt. 2: II. Chorus. Patrem omnipotentem (A 4)
type: MusicRecording
duration: PT2M2S
duration ms: 122333
explicit: false
by artist: Johann Sebastian Bach
by artist: RIAS Kammerchor
in album: J.S. Bach: Mass in B Minor
  type: MusicAlbum
  date published: 2015-02-01
genre: classical
genre: classical-piano
isrc code: NLY331502840
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:08:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xafe656203bea09c9cb05457bf62e966a16f1461aeaaff3ae528a36f595cab3fd
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/NLY331502840
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 0xafe656203bea09c9cb05457bf62e966a16f1461aeaaff3ae528a36f595cab3fd. 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/NLY331502840.
  date published: 2026-07-08T03:20:19Z
audio: Mass in B Minor BWV 232, Pt. 2: II. Chorus. Patrem omnipotentem (A 4)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.113
  additional property: Key Name
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  additional property: Mode Name
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Christmas with the Vienna Boys Choir
type: MusicAlbum
date published: 2012-11-06
track: O du frohliche (O Sanctissima)
  type: MusicRecording
  duration: PT1M45S
  duration ms: 105853
  explicit: false
  by artist: Traditional
  by artist: Vienna Boys' Choir
  by artist: Edwin Sternberger
  by artist: Marie Wolf
  by artist: Michaela Kuchar
  by artist: Harald Ficke
  by artist: Alfred Staudigt
  by artist: Andreas Pfeifer
  by artist: Werner Schnner
  by artist: Harald Huemer
  by artist: Gerhard Preyer
  by artist: Helga Fischer-Kammerer
  by artist: Klaus Arbeiter
  by artist: Heinz Hromada
  by artist: Georg Stangelberger
  by artist: Thomas Henkes
  by artist: Peter Marschik
  in album: Christmas with the Vienna Boys Choir
    type: MusicAlbum
    date published: 2012-11-06
  genre: bhajan
  genre: gregorian-chant
  genre: medieval
  genre: traditional-music
  isrc code: DEB261200973
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T19:38:43+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0xbc4e7cc1dc991eeb1f3f40ee10509d52bbce0539066ec359a0101c4b4696c29f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  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/DEB261200973
  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 0xbc4e7cc1dc991eeb1f3f40ee10509d52bbce0539066ec359a0101c4b4696c29f. 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/DEB261200973.
    date published: 2026-07-08T03:53:27Z
  audio: O du frohliche (O Sanctissima)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.885
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.799
    additional property: Key Name
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    additional property: Mode Name
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track: The First Noel
  type: MusicRecording
  duration: PT2M36S
  duration ms: 156080
  explicit: false
  by artist: Traditional
  by artist: Vienna Boys' Choir
  by artist: Studio ensemble
  by artist: Peter Marschik
  in album: Christmas with the Vienna Boys Choir
    type: MusicAlbum
    date published: 2012-11-06
  genre: bhajan
  genre: gregorian-chant
  genre: medieval
  genre: traditional-music
  isrc code: DEB261200976
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T15:33:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd7d5ccd5bfe75590f85f822f395d5e092d8dfce2637fa1725c13b256aac9f5e7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957122
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957122
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261200976
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:39:04Z
  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 0xd7d5ccd5bfe75590f85f822f395d5e092d8dfce2637fa1725c13b256aac9f5e7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEB261200976.
    date published: 2026-07-08T03:39:04Z
  audio: The First Noel
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.027
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.283
    additional property: Energy
      type: PropertyValue
      value: 0.065
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.976
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.223
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.263
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.659
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Joy to the World
  type: MusicRecording
  duration: PT2M15S
  duration ms: 135960
  explicit: false
  by artist: George Frideric Handel
  by artist: Vienna Boys' Choir
  by artist: Edwin Sternberger
  by artist: Marie Wolf
  by artist: Michaela Kuchar
  by artist: Harald Ficke
  by artist: Alfred Staudigt
  by artist: Andreas Pfeifer
  by artist: Werner Schnner
  by artist: Harald Huemer
  by artist: Gerhard Preyer
  by artist: Helga Fischer-Kammerer
  by artist: Klaus Arbeiter
  by artist: Heinz Hromada
  by artist: Georg Stangelberger
  by artist: Thomas Henkes
  by artist: Peter Marschik
  in album: Christmas with the Vienna Boys Choir
  genre: classical
  genre: early-music
  genre: baroque
  genre: english-baroque
  genre: german-baroque
  isrc code: DEB261200990
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Joy to the World

George Frideric Handel
type: MusicGroup

Vienna Boys' Choir
type: MusicGroup

Edwin Sternberger
type: MusicGroup

Marie Wolf
type: MusicGroup

Michaela Kuchar
type: MusicGroup

Harald Ficke
type: MusicGroup

Alfred Staudigt
type: MusicGroup

Andreas Pfeifer
type: MusicGroup

Werner Schnner
type: MusicGroup

Harald Huemer
type: MusicGroup

Gerhard Preyer
type: MusicGroup

Helga Fischer-Kammerer
type: MusicGroup

Klaus Arbeiter
type: MusicGroup

Heinz Hromada
type: MusicGroup

Georg Stangelberger
type: MusicGroup

Thomas Henkes
type: MusicGroup

Peter Marschik
type: MusicGroup

Christmas with the Vienna Boys Choir
type: MusicAlbum
date published: 2012-11-06

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T12:20:29+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x78cf1f0b16d9f12fafe2d52020c9a51100d08806eeb41e514b9a8523038c76b6

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957124

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957124

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB261200990

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:53:27Z

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 0x78cf1f0b16d9f12fafe2d52020c9a51100d08806eeb41e514b9a8523038c76b6. 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/DEB261200990.
date published: 2026-07-08T03:53:27Z

Joy to the World
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 105.532
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: 0.395
additional property: Energy
  type: PropertyValue
  value: 0.06
additional property: Speechiness
  type: PropertyValue
  value: 0.047
additional property: Acousticness
  type: PropertyValue
  value: 0.99
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.098
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.317
additional property: Loudness (dB)
  type: PropertyValue
  value: -25.745
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

Christmas Favorites
type: MusicAlbum
date published: 1999-01-01
track: Frohliche Weihnacht uberall
  type: MusicRecording
  duration: PT1M47S
  duration ms: 107066
  explicit: false
  by artist: Traditional
  by artist: Vienna Boys' Choir
  by artist: Helmut Froschauer
  in album: Christmas Favorites
    type: MusicAlbum
    date published: 1999-01-01
  popularity: 0
  genre: bhajan
  genre: gregorian-chant
  genre: medieval
  genre: traditional-music
  isrc code: US2TL0923401
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T03:23:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x438097149dbfccb2fafe60ad0c160617d259725d9c5329cb1511540d71fe20a9
  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/US2TL0923401
  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 0x438097149dbfccb2fafe60ad0c160617d259725d9c5329cb1511540d71fe20a9. 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/US2TL0923401.
    date published: 2026-07-08T03:53:27Z
  audio: Frohliche Weihnacht uberall
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.811
    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: 0.406
    additional property: Energy
      type: PropertyValue
      value: 0.055
    additional property: Speechiness
      type: PropertyValue
      value: 0.051
    additional property: Acousticness
      type: PropertyValue
      value: 0.992
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.166
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.518
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.546
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: O Tannenbaum
  type: MusicRecording
  duration: PT1M38S
  duration ms: 98560
  explicit: false
  by artist: Traditional
  by artist: Vienna Boys' Choir
  by artist: Uwe Christian Harrer
  in album: Christmas Favorites
    type: MusicAlbum
    date published: 1999-01-01
  popularity: 6
  genre: bhajan
  genre: gregorian-chant
  genre: medieval
  genre: traditional-music
  isrc code: US2TL0923402
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T23:31:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x32caf00fffec16e9def728ecb1afe5795b35c1f97f1eef472801997bb29f602f
  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/US2TL0923402
  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 0x32caf00fffec16e9def728ecb1afe5795b35c1f97f1eef472801997bb29f602f. 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/US2TL0923402.
    date published: 2026-07-07T18:39:05Z
  audio: O Tannenbaum
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 115.793
    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: 0.328
    additional property: Energy
      type: PropertyValue
      value: 0.075
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.991
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.13
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.284
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.589
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Auf dem Berge, da wehet der Wind
track: Festgesang, MWV D4, "Gutenberg-Kantate": No. 2. (adap. W.H. Cummings as Hark! The Herald Angels Sing)
  type: MusicRecording
  duration: PT2M54S
  duration ms: 174733
  explicit: false
  by artist: Felix Mendelssohn
  by artist: Vienna Boys' Choir
  by artist: Peter Marschik
  in album: Christmas Favorites
    type: MusicAlbum
    date published: 1999-01-01
  popularity: 1
  genre: classical
  genre: early-romantic-era
  genre: german-romanticism
  isrc code: US2TL0923408
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Festgesang, MWV D4, "Gutenberg-Kantate": No. 2. (adap. W.H. Cummings as Hark! The Herald Angels Sing)
track: Nun sei gegrusst, o Jesulein
track: Ave Maria
track: Stille Nacht (Silent Night)
track: Hansel and Gretel: Abendsegen

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T16:21:04+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xc485aaf8abbd5b4d0cae21812e28776061c7f3b130c90bec0bd4743abcde6cbf

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957145

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957145

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0923408

OTSTimestamp
type: PropertyValue
value: 2026-07-08T08:56:20Z

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 0xc485aaf8abbd5b4d0cae21812e28776061c7f3b130c90bec0bd4743abcde6cbf. 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/US2TL0923408.
date published: 2026-07-08T08:56:20Z

Festgesang, MWV D4, "Gutenberg-Kantate": No. 2. (adap. W.H. Cummings as Hark! The Herald Angels Sing)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 112.05
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: 0.189
additional property: Energy
  type: PropertyValue
  value: 0.105
additional property: Speechiness
  type: PropertyValue
  value: 0.043
additional property: Acousticness
  type: PropertyValue
  value: 0.965
additional property: Instrumentalness
  type: PropertyValue
  value: 0.001
additional property: Liveness
  type: PropertyValue
  value: 0.157
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.11
additional property: Loudness (dB)
  type: PropertyValue
  value: -24.239
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Major

Nun sei gegrusst, o Jesulein
type: MusicRecording
duration: PT1M56S
duration ms: 116400
explicit: false
by artist: Traditional
by artist: Vienna Boys' Choir
by artist: Helmut Froschauer
in album: Christmas Favorites
  type: MusicAlbum
  date published: 1999-01-01
popularity: 0
genre: bhajan
genre: gregorian-chant
genre: medieval
genre: traditional-music
isrc code: US2TL0923409
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:35:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb36294629e991218f88186b3775569b8ba0c21f80c3830bfba23da2921cf3de5
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/US2TL0923409
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 0xb36294629e991218f88186b3775569b8ba0c21f80c3830bfba23da2921cf3de5. 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/US2TL0923409.
  date published: 2026-07-08T03:53:27Z
audio: Nun sei gegrusst, o Jesulein
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 171.158
  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: 0.278
  additional property: Energy
    type: PropertyValue
    value: 0.072
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.646
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.122
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ave Maria
type: MusicRecording
duration: PT3M0S
duration ms: 180666
explicit: false
by artist: Johann Sebastian Bach
by artist: Charles Gounod
by artist: Vincent Borrits
by artist: Vienna Boys' Choir
in album: Christmas Favorites
  type: MusicAlbum
  date published: 1999-01-01
popularity: 4
genre: classical
genre: classical-piano
isrc code: US2TL0923410
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:41:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2f68821f46ff5af804c5b2855c7ebdb7e61578d0e1881a5cf123d40d6d292cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957820
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957820
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2TL0923410
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-13T07:54:01Z
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
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Stille Nacht (Silent Night)
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Telemann: Sacred Choral Music
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Bach: Secular Cantatas, BWV 36c, 201, 206, 207, Quodlibet BWV 524
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Heinichen: Lamentationes / Passionsmusik
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Essential Opera: The Best Duets Ever
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Great Composers in Words & Music: George Frideric Handel
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G. F. Händel: Giulio Cesare in Egitto
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Midnight Lounge - Chill Out Classics and Meditation
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Top 50 Bach
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track: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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track: Wachet! Betet! Betet! Wachet!, BWV 70, Pt. 1: I. Coro. Wachet! Betet! Betet! Wachet!
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track: Italian Concerto in F Major, BWV 971: I. Allegro

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Violin Concerto in D Minor, BWV 1052: I. — (Reconstructed from the Harpsichord Concerto, BWV 1052)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
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Harpsichord Concerto No. 2 in E Major, BWV 1053: II. Siciliano
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by artist: New Bach Collegium Musicum Leipzig
by artist: Burkhard Glaetzner
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Harpsichord Concerto No. 2 in E Major, BWV 1053: II. Siciliano
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Brandenburg Concerto No. 2 in F Major, BWV 1047: I. —
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Brandenburg Concerto No. 2 in F Major, BWV 1047: I. —
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Partita No. 2 in C Minor, BWV 826: I. Sinfonia
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Partita No. 2 in C Minor, BWV 826: I. Sinfonia
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Concerto for Harpsichord No. 6 in F Major, BWV 1057: III. Allegro assai
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popularity: 27
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Concerto for Harpsichord No. 6 in F Major, BWV 1057: III. Allegro assai
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Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
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by artist: Musica Amphion
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popularity: 27
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
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Violin Partita No. 3 in E Major, BWV 1006: I. Preludio
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popularity: 27
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Violin Partita No. 3 in E Major, BWV 1006: I. Preludio
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
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Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
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Flute Sonata in E Major, BWV 1035: III. Siciliana
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:53:06Z
audio: Flute Sonata in E Major, BWV 1035: III. Siciliana
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Harpsichord Concerto No. 4 in A Major, BWV 1055: II. Larghetto
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popularity: 26
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:53:06Z
audio: Harpsichord Concerto No. 4 in A Major, BWV 1055: II. Larghetto
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Matthäus-Passion, BWV 244, Pt. 1: I. Chorus. Kommt, ihr Töchter, helft mir klagen
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popularity: 27
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:53:06Z
audio: Matthäus-Passion, BWV 244, Pt. 1: I. Chorus. Kommt, ihr Töchter, helft mir klagen
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Das wohltemperierte Klavier I, Prelude and Fugue No. 1 in C Major, BWV 845: I. Prelude
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by artist: Pieter-Jan Belder
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Das wohltemperierte Klavier I, Prelude and Fugue No. 1 in C Major, BWV 845: I. Prelude
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Goldberg Variations in G Major, BWV 988: I. Aria
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popularity: 25
genre: classical
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subject of: OpenTimestamps Proof of Existence
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Jesu, nun sei gepreiset, BWV 41: I. Coro. Jesu, nun sei gepreiset
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
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Ein' feste Burg ist unser Gott, BWV 80: I. Coro. Ein' Feste Burg ist unser Gott
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
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Matthäus-Passion, BWV 244, Pt. 2: XXXIX. Chorus. Wir setzen uns mit Tränen nieder
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Matthäus-Passion, BWV 244, Pt. 2: XXXIX. Chorus. Wir setzen uns mit Tränen nieder
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Herz und Mund und Tat und Leben, BWV 147, Pt. 1: I. Coro. Herz und Mund und Tat und Leben (Coro)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Herz und Mund und Tat und Leben, BWV 147, Pt. 1: I. Coro. Herz und Mund und Tat und Leben (Coro)
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Mass in B Minor, BWV 232, Pt. 1: II. Duet. Christe eleison (Two Sopranos)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Mass in B Minor, BWV 232, Pt. 1: II. Duet. Christe eleison (Two Sopranos)
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Johannes-Passion, BWV 245, Pt. 1: I. Chorus. Herr, unser Herrscher
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
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Toccata and Fugue in D Minor, BWV 565: I. Toccata
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subject of: OpenTimestamps Proof of Existence
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Toccata and Fugue in D Minor, BWV 565: II. Fugue
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
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Passacaglia in C Minor, BWV 582
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
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Orchestral Suite No. 4 in D Major, BWV 1069: I. Ouverture
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  date published: 2026-06-13T13:32:09Z
audio: Orchestral Suite No. 4 in D Major, BWV 1069: I. Ouverture
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Harpsichord Concerto No. 5 in F Minor, BWV 1056: II. Largo
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  date published: 2026-06-13T13:32:09Z
audio: Harpsichord Concerto No. 5 in F Minor, BWV 1056: II. Largo
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Violin Partita No. 2 in D Minor, BWV 1004: V. Ciaccona
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  date published: 2026-06-13T13:32:09Z
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Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
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Notenbüchlein für Anna Magdalena Bach: XXIV. Bist du bei mir, BWV 508 (Arr. J.S. Bach)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Notenbüchlein für Anna Magdalena Bach: XXIV. Bist du bei mir, BWV 508 (Arr. J.S. Bach)
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Partita No. 1 in B-Flat Major, BWV 825: I. Prelude
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by artist: Pieter-Jan Belder
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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: 2026-06-13T17:25:41Z
audio: Partita No. 1 in B-Flat Major, BWV 825: I. Prelude
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Violin Concerto in A Minor, BWV 1041: II. Andante
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duration: PT6M18S
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by artist: Thomas Zehetmair
by artist: Amsterdam Bach Soloists
by artist: Henk Rubingh
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popularity: 22
genre: classical
genre: classical-piano
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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: 2026-06-13T15:41:10Z
audio: Violin Concerto in A Minor, BWV 1041: II. Andante
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Chromatic Fantasy and Fugue in D Minor, BWV 903: I. Fantasie
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by artist: Pieter-Jan Belder
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popularity: 21
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Chromatic Fantasy and Fugue in D Minor, BWV 903: I. Fantasie
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Wie schön leuchtet der Morgenstern, BWV 1: I. Coro. Wie schön leuchtet der Morgenstern
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popularity: 21
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Wie schön leuchtet der Morgenstern, BWV 1: I. Coro. Wie schön leuchtet der Morgenstern
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Herz und Mund und Tat und Leben, BWV 147, Pt. 2: X. Coro. Jesu bleibet meine Freude
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by artist: Pieter Jan Leusink
by artist: Holland Boys Choir
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popularity: 22
genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Herz und Mund und Tat und Leben, BWV 147, Pt. 2: X. Coro. Jesu bleibet meine Freude
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Concerto in D Minor for Two Violins, BWV 1043: II. Largo ma non tanto
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by artist: Thomas Zehetmair
by artist: Amsterdam Bach Soloists
by artist: Henk Rubingh
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popularity: 22
genre: classical
genre: classical-piano
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Concerto in D Minor for Two Violins, BWV 1043: II. Largo ma non tanto
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Wachet! Betet! Betet! Wachet!, BWV 70, Pt. 1: I. Coro. Wachet! Betet! Betet! Wachet!
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popularity: 21
genre: classical
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f751ece49e981140f106d46df5a177e2b3fee283874855d4203d941864ab811. 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/NLY331408081.
  date published: 2026-06-13T15:41:10Z
audio: Wachet! Betet! Betet! Wachet!, BWV 70, Pt. 1: I. Coro. Wachet! Betet! Betet! Wachet!
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Mass in B Minor, BWV 232, Pt. 1: VIII. Duet. Domine Deus (Soprano, Tenor)
type: MusicRecording
duration: PT5M28S
duration ms: 328693
explicit: false
by artist: Johann Sebastian Bach
by artist: Hillevi Martinpelto
by artist: Akademie für Alte Musik Berlin
by artist: René Jacobs
by artist: Christoph Prégardien
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 21
genre: classical
genre: classical-piano
isrc code: NLY331408880
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331408880
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1200f0f6b3c110b47bd626dcdb264a18f8adc4fd14af50f5a4998c4664e4bb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLY331408880.
  date published: 2026-06-13T17:25:41Z
audio: Mass in B Minor, BWV 232, Pt. 1: VIII. Duet. Domine Deus (Soprano, Tenor)
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Erbarm dich mein, o Herre Gott, BWV 721
type: MusicRecording
duration: PT3M37S
duration ms: 217000
explicit: false
by artist: Johann Sebastian Bach
by artist: Stefano Molardi
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 21
genre: classical
genre: classical-piano
isrc code: NLY331409731
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
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331409731
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ceb4d04adf4d25c6c9fc118f63fda0d52455a5a4eef5da51771e2ea2ac559ac. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLY331409731.
  date published: 2026-06-13T13:32:09Z
audio: Erbarm dich mein, o Herre Gott, BWV 721
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Komm, Jesu, komm, BWV 229
type: MusicRecording
duration: PT8M52S
duration ms: 532226
explicit: false
by artist: Johann Sebastian Bach
by artist: Chamber Choir Of Europe
by artist: European Chamber Soloists
by artist: Nicol Matt
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 21
genre: classical
genre: classical-piano
isrc code: NLY331408960
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331408960
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed5a1ca2d33759e6d3cde6cf3f10924c967c74e05d2579cc1c4671063aa173b. 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/NLY331408960.
  date published: 2026-06-13T15:41:10Z
audio: Komm, Jesu, komm, BWV 229
  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
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  additional property: Danceability
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Harpsichord Concerto No. 3 in D Major, BWV 1054: II. Adagio e piano sempre
type: MusicRecording
duration: PT5M12S
duration ms: 312960
explicit: false
by artist: Johann Sebastian Bach
by artist: Christine Schornsheim
by artist: New Bach Collegium Musicum Leipzig
by artist: Burkhard Glaetzner
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 21
genre: classical
genre: classical-piano
isrc code: NLY331406841
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-06-09T08:52:35+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331406841
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4689be03c4cea7ae68158b74f644296aa544b633542648a0cc96f7a9f684d0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLY331406841.
  date published: 2026-06-13T13:32:09Z
audio: Harpsichord Concerto No. 3 in D Major, BWV 1054: II. Adagio e piano sempre
  type: AudioObject
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Matthäus-Passion, BWV 244, Pt. 1: VIII. Aria. Blute nur, du liebes Herz! (Soprano)
type: MusicRecording
duration: PT4M44S
duration ms: 284400
explicit: false
by artist: Johann Sebastian Bach
by artist: Gewandhausorchester
by artist: Rudolf Mauersberger
by artist: Erhard Mauersberger
by artist: Adele Stolte
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 21
genre: classical
genre: classical-piano
isrc code: NLY331409168
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: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8e1d205fe1da2e377426cb180d48580cd41ce384f920b5df70b7590ebf703f. 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/NLY331409168.
  date published: 2026-06-13T15:41:10Z
audio: Matthäus-Passion, BWV 244, Pt. 1: VIII. Aria. Blute nur, du liebes Herz! (Soprano)
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Matthäus-Passion, BWV 244, Pt. 2: XX. Aria. Aus Liebe will mein Heiland sterben (Soprano)
type: MusicRecording
duration: PT4M21S
duration ms: 261133
explicit: false
by artist: Johann Sebastian Bach
by artist: Gewandhausorchester
by artist: Rudolf Mauersberger
by artist: Erhard Mauersberger
by artist: Adele Stolte
in album: Top 50 Bach
  type: MusicAlbum
  date published: 2014-05-17
popularity: 21
genre: classical
genre: classical-piano
isrc code: NLY331409209
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: 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 0xd542c37498519a2a1e123bbc2226d87b9a73b93c8e1e7660e23eda7fd9cfec0f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLY331409209.
  date published: 2026-06-13T13:32:09Z
audio: Matthäus-Passion, BWV 244, Pt. 2: XX. Aria. Aus Liebe will mein Heiland sterben (Soprano)
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Italian Concerto in F Major, BWV 971: I. Allegro
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Hasse: La Conversione di Sant'Agostino
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100 Christmas Classics
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Christmas Meditation
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Christmas Festive Concert - Bach, J.S. / Handel, G.F. / Praetorius, M. / Manfredini, F.O. / Mendelssohn, Felix / Gabrieli, G.
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Music for the Dresden Court
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100 Christmas Meditation
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J.S. Bach: Complete Edition, Vol. 8/10
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Cantate d'amore: Italian Love Cantatas
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Handel, G.F.: Solo Cantatas / Opera Arias
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Vocal Music (Sacred) - Tunder, F. / Buxtehude, D. / Rosenmuller, J. / Bach, J.M. / Franck, J.W.
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In Dulci Jubilo
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Handel, G.F.: Arias
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Musical Table Entertainment - Reusner, E. / Brade, W. / Praetorius, B. / Eccard, J. / Zangius, N.
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Concerto for Flute and 2 Violins in D Major, RV 89: I. Allegro assai
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Brandenburg Concerto No. 4 In G Major, BWV 1049: 2. Andante
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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: Brandenburg Concerto No. 4 In G Major, BWV 1049: 2. Andante
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Brandenburg Concerto No. 4 In G Major, BWV 1049: 3. Presto
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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: Brandenburg Concerto No. 4 In G Major, BWV 1049: 3. Presto
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Brandenburg Concerto No. 2 in F Major, BWV 1047: I. (Allegro)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Brandenburg Concerto No. 2 in F Major, BWV 1047: I. (Allegro)
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Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
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Brandenburg Concerto No. 1 in F Major, BWV 1046: I. (Allegro)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Brandenburg Concerto No. 1 in F Major, BWV 1046: I. (Allegro)
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Brandenburg Concerto No. 1 in F Major, BWV 1046: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Brandenburg Concerto No. 1 in F Major, BWV 1046: II. Adagio
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Brandenburg Concerto No. 1 in F Major, BWV 1046: III. Allegro
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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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Brandenburg Concerto No. 1 in F Major, BWV 1046: IV. Menuet - V. Trio - VI. Polonaise - VII. Trio
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Musical Offering, BWV 1079: 4b. Canon 2 a 2 violini in unisono
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Musical Offering, BWV 1079: 4d. Canon 4 a 2 per augmentationem, contrario motu
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Musical Offering, BWV 1079: 4g. Canon perpetuus super thema regium
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Musical Offering, BWV 1079: Sonata a 3 - III Andante
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Musical Offering, BWV 1079: Sonata a 3 - IV Allegro
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Christmas with the Vienna Boys Choir
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    date published: 2026-07-08T03:20:19Z
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track: The First Noel
track: Tauet Himmel den Gerechten: Trauet Himmel den Gerechten
track: Judas Maccabaeus, HWV 63: Judas Maccabaeus, HWV 63: Tochter Zion, freue dich (Sung in German) [Sung in German]

The First Noel
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: The First Noel
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Tauet Himmel den Gerechten: Trauet Himmel den Gerechten
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by artist: Michaela Kuchar
by artist: Harald Ficke
by artist: Alfred Staudigt
by artist: Andreas Pfeifer
by artist: Werner Schnner
by artist: Harald Huemer
by artist: Gerhard Preyer
by artist: Helga Fischer-Kammerer
by artist: Klaus Arbeiter
by artist: Heinz Hromada
by artist: Georg Stangelberger
by artist: Thomas Henkes
by artist: Peter Marschik
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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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Judas Maccabaeus, HWV 63: Judas Maccabaeus, HWV 63: Tochter Zion, freue dich (Sung in German) [Sung in German]
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by artist: Harald Huemer
by artist: Gerhard Preyer
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  date published: 2026-07-08T03:20:19Z
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Festlicher Weihnachtszauber
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date published: 2005-10-01