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popularity: 9
followers: 64
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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album: The 99 Most Essential Bach Masterpieces
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  date published: 2009-06-09
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    by artist: Camerata Antonio Lucio
    by artist: Emmy Verhey
    by artist: Alun Francis
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      date published: 2009-06-09
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    genre: classical-piano
    genre: early-music
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      date published: 2026-07-29T21:09:47Z
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  track: Concerto No. 5 in F Minor for Harpsichord and Orchestra, BWV 1056: II. Arioso: Largo
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    by artist: Christiane Jaccottet
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      date published: 2026-07-30T09:37:10Z
    audio: Concerto No. 5 in F Minor for Harpsichord and Orchestra, BWV 1056: II. Arioso: Largo
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album: Baroque Trumpet (The Art Of The), Vol. 2
album: Art & Music: Rembrandt - Music of His Time
album: Bach Hits
album: Ballads - Bach
album: Christmas Music for Your Holiday
album: Bach Unlimited
album: Bach: For Relaxation and Meditation
album: Bach 50 Best
album: The Spirit of a Classical Christmas
album: Concertos pour une, Deux & trois trompettes
album: Treppe Ins Glueck
album: Arcade
album: A Classical Encyclopedia: B as in Bach
album: Baroque Brass
album: Bach
album: My First Bach Album
album: Classical Christmas Traditions
album: International Voyage
album: 50 Essential Bach
album: Ruhe bei klassischer Musik
album: 100 Christmas Classics
album: Kindergarten Classics - Relax and Play
album: Summer Magic
album: The Sacred Music of Bach
album: Expeditions
album: Christmas Music for Your Xmas Dinner
track: Trumpet Sonata No. 2
track: Trumpet Sonata No. 3, "Detta del Niccolini"

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Baroque Trumpet (The Art Of The), Vol. 2
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date published: 1997-11-10
track: Trumpet Sonata No. 2
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  by artist: Giovanni Buonaventura Viviani
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T15:20:15Z
  audio: Trumpet Sonata No. 2
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track: Trumpet Sonata No. 69
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  by artist: Niklas Eklund
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: Trumpet Sonata No. 69
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Art & Music: Rembrandt - Music of His Time
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Bach Hits
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date published: 2012-10-23
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2026c698ba77be4ad3d93069e7f94ca96d09d715fe92446caad1611737df2c50. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9750014.
    date published: 2026-07-08T03:22:41Z
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    value: https://explorer.copyrightchains.com/tx/0xfd1f07048e7fb781ba0a360496c3f15a1c31b3cdc7b7f1df799e9d6134c2962e
  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/SEWDL9750009
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1f07048e7fb781ba0a360496c3f15a1c31b3cdc7b7f1df799e9d6134c2962e. 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/SEWDL9750009.
    date published: 2026-07-08T03:20:19Z
  audio: Orchestral Suite No. 3 in D Major, BWV 1068: Air
    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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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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track: The Well-Tempered Clavier: Prelude No. 1 in C Major, BWV 846
  type: MusicRecording
  duration: PT2M28S
  duration ms: 148740
  explicit: false
  by artist: Johann Sebastian Bach
  by artist: Henrik Måwe
  in album: Bach Hits
    type: MusicAlbum
    date published: 2012-10-23
  genre: classical
  genre: classical-piano
  genre: early-music
  genre: baroque
  genre: chamber-music
  genre: concerto
  isrc code: SEWDL6018029
  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: The Well-Tempered Clavier: Prelude No. 1 in C Major, BWV 846
track: Cello Suite No. 3 in C Major, BWV 1009: V. Bourée 1 & 2
track: Concerto in G Minor for Violin and Strings, BWV 1056R: II. Arioso: Largo
track: Chorale Preludes, Book 2, "Schübler Chorales": Wachet Auf, Ruft Uns Die Stimme, BWV 645
track: Double Concerto in D Minor for Two Violins, BWV 1043: Vivace

CopyrightID
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CopyrightStatus
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value: registered

CopyrightRegisteredAt
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value: 2026-06-19T09:08:40+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x6f678c5d377cdee9ec5db0b3f8f7660daf959ed6ebe612fbee4508f6856119cb

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL6018029

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f678c5d377cdee9ec5db0b3f8f7660daf959ed6ebe612fbee4508f6856119cb. 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/SEWDL6018029.
date published: 2026-07-08T03:20:19Z

The Well-Tempered Clavier: Prelude No. 1 in C Major, BWV 846
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
  type: PropertyValue
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additional property: Mode (Major/Minor)
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additional property: Time Signature
  type: PropertyValue
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additional property: Danceability
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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: 0.985
additional property: Instrumentalness
  type: PropertyValue
  value: 0.949
additional property: Liveness
  type: PropertyValue
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additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.303
additional property: Loudness (dB)
  type: PropertyValue
  value: -21.735
additional property: Key Name
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additional property: Mode Name
  type: PropertyValue
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Cello Suite No. 3 in C Major, BWV 1009: V. Bourée 1 & 2
type: MusicRecording
duration: PT4M17S
duration ms: 257706
explicit: false
by artist: Johann Sebastian Bach
by artist: Victor Yoran
in album: Bach Hits
  type: MusicAlbum
  date published: 2012-10-23
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: SEWDL0712705
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:41:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x06f623f8fbb03c576bb722a7a96abb2c77edb5425a00ad485f94b4731256e622
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/SEWDL0712705
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f623f8fbb03c576bb722a7a96abb2c77edb5425a00ad485f94b4731256e622. 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/SEWDL0712705.
  date published: 2026-07-08T03:53:27Z
audio: Cello Suite No. 3 in C Major, BWV 1009: V. Bourée 1 & 2
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.984
  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: 0.469
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.949
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.47
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Concerto in G Minor for Violin and Strings, BWV 1056R: II. Arioso: Largo
type: MusicRecording
duration: PT3M14S
duration ms: 194893
explicit: false
by artist: Johann Sebastian Bach
by artist: Camerata Antonio Lucio
by artist: Emmy Verhey
in album: Bach Hits
  type: MusicAlbum
  date published: 2012-10-23
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: SEWDL0727002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:06:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x366d0c4b9229662c568bab055e8fcc53d99d245c44738412f1af69075418d573
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/SEWDL0727002
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366d0c4b9229662c568bab055e8fcc53d99d245c44738412f1af69075418d573. 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/SEWDL0727002.
  date published: 2026-07-08T03:53:27Z
audio: Concerto in G Minor for Violin and Strings, BWV 1056R: II. Arioso: Largo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.893
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.21
  additional property: Energy
    type: PropertyValue
    value: 0.153
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.299
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.564
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Chorale Preludes, Book 2, "Schübler Chorales": Wachet Auf, Ruft Uns Die Stimme, BWV 645
type: MusicRecording
duration: PT4M46S
duration ms: 286093
explicit: false
by artist: Johann Sebastian Bach
by artist: Marc Ullrich
by artist: Basel Brass Quintet
in album: Bach Hits
  type: MusicAlbum
  date published: 2012-10-23
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: SEWDL0733813
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T13:39:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0fc030c62445e0818e1bd7aa0559089e597c68cd7524aa9cd67e0ceece8e13fd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960410
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960410
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0733813
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:50:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc030c62445e0818e1bd7aa0559089e597c68cd7524aa9cd67e0ceece8e13fd. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0733813.
  date published: 2026-07-31T13:50:38Z
audio: Chorale Preludes, Book 2, "Schübler Chorales": Wachet Auf, Ruft Uns Die Stimme, BWV 645
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.885
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.306
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.729
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Double Concerto in D Minor for Two Violins, BWV 1043: Vivace
type: MusicRecording
duration: PT3M38S
duration ms: 218693
explicit: false
by artist: Johann Sebastian Bach
by artist: London Philharmonic Orchestra
by artist: Pieter Schoeman
by artist: Vesselin Gellev
in album: Bach Hits
  type: MusicAlbum
  date published: 2012-10-23
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: SEWDL9750042
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T21:06:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x972cfaa55eec06213fc386165420c4987b0980d1e9abd6684641414bb9bc3165
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/SEWDL9750042
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972cfaa55eec06213fc386165420c4987b0980d1e9abd6684641414bb9bc3165. 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/SEWDL9750042.
  date published: 2026-07-08T03:20:19Z
audio: Double Concerto in D Minor for Two Violins, BWV 1043: Vivace
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.331
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.609
  additional property: Energy
    type: PropertyValue
    value: 0.289
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.926
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.031
  additional property: Liveness
    type: PropertyValue
    value: 0.245
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.767
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.214
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Ballads - Bach
type: MusicAlbum
date published: 2019-08-17
track: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
  type: MusicRecording
  duration: PT4M14S
  duration ms: 254426
  explicit: false
  by artist: Johann Sebastian Bach
  by artist: David Parry
  by artist: London Philharmonic Orchestra
  in album: Ballads - Bach
    type: MusicAlbum
    date published: 2019-08-17
  genre: classical
  genre: classical-piano
  genre: early-music
  genre: baroque
  genre: chamber-music
  genre: concerto
  isrc code: SEWDL9750009
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T15:04:51+00:00
  additional property: CopyrightChainExplorerURL
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  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/SEWDL9750009
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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  by artist: Camerata Antonio Lucio
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: Violin Concerto in G Minor, BWV 1056R: II. Arioso: Largo
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track: Goldberg Variations, BWV 988: Aria
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  by artist: Henrik Måwe
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  subject of: OpenTimestamps Proof of Existence
  audio: Goldberg Variations, BWV 988: Aria
track: Herz und Mund und Tat und Leben, BWV 147, Pt. 2: X. Chorale, Jesu bleibet meine Freude (Jesu, Joy of Man's Desiring) (Arr. for Organ)
track: Cello Suite No. 1 in G Major, BWV 1007: I. Prélude
track: Suite in G Minor, BWV 995: II. Allemande

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OTSVerificationAPI
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

Goldberg Variations, BWV 988: Aria
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Herz und Mund und Tat und Leben, BWV 147, Pt. 2: X. Chorale, Jesu bleibet meine Freude (Jesu, Joy of Man's Desiring) (Arr. for Organ)
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by artist: Susanne Doll
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genre: classical
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genre: baroque
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: Herz und Mund und Tat und Leben, BWV 147, Pt. 2: X. Chorale, Jesu bleibet meine Freude (Jesu, Joy of Man's Desiring) (Arr. for Organ)
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Cello Suite No. 1 in G Major, BWV 1007: I. Prélude
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duration: PT1M47S
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by artist: Victor Yoran
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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: 2026-07-08T03:20:19Z
audio: Cello Suite No. 1 in G Major, BWV 1007: I. Prélude
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Suite in G Minor, BWV 995: II. Allemande
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duration: PT4M57S
duration ms: 297960
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by artist: Johann Sebastian Bach
by artist: Sonja Prunnbauer
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genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Suite in G Minor, BWV 995: II. Allemande
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Christmas Music for Your Holiday
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date published: 2012-10-23
track: Christmas Oratorio, BWV 248, Part 1: IX. Chorale: Ach, mein herzliebes Jesulein!
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: Christmas Oratorio, BWV 248, Part 1: IX. Chorale: Ach, mein herzliebes Jesulein!
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Bach Unlimited
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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Bach: For Relaxation and Meditation
type: MusicAlbum
date published: 2009-05-05

Bach 50 Best
type: MusicAlbum
date published: 2017-01-05

The Spirit of a Classical Christmas
type: MusicAlbum
date published: 2012-11-27

Art & Music: Rembrandt - Music of His Time
type: MusicAlbum
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Concertos pour une, Deux & trois trompettes
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  by artist: Ensemble La Follia
  by artist: Miguel de La Fuente
  by artist: Marc Ullrich
  by artist: Gilbert Petit
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    date published: 2026-07-02T03:55:08Z
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Treppe Ins Glueck
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Arcade
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A Classical Encyclopedia: B as in Bach
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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Baroque Brass
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date published: 2009-01-01

Bach
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date published: 2011-01-17

My First Bach Album
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  by artist: Royal Philharmonic Orchestra
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  genre: chamber-music
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T17:29:52Z
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Classical Christmas Traditions
type: MusicAlbum
date published: 2012-10-30

International Voyage
type: MusicAlbum
date published: 2023-03-31

50 Essential Bach
type: MusicAlbum
date published: 2009-01-01

Ruhe bei klassischer Musik
type: MusicAlbum
date published: 2022-01-22

100 Christmas Classics
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date published: 2010-01-01

Kindergarten Classics - Relax and Play
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date published: 2024-09-18

Summer Magic
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The Sacred Music of Bach
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Expeditions
type: MusicAlbum
date published: 2016-04-22

Christmas Music for Your Xmas Dinner
type: MusicAlbum
date published: 2024-10-01

Trumpet Sonata No. 2
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by artist: Giovanni Buonaventura Viviani
by artist: Tormod Dalen
by artist: Niklas Eklund
by artist: Knut Johannessen
by artist: Mats Klingfors
by artist: Marc Ullrich
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
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Trumpet Sonata No. 3, "Detta del Niccolini"
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by artist: Tormod Dalen
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by artist: Mats Klingfors
by artist: Marc Ullrich
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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