Helge Kjekshus
type: MusicGroup
genre: chamber music
genre: choral
popularity: 8
followers: 111
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-21T07:29:20Z
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album: Grieg (The Very Best Of)
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  date published: 2006-04-18
  track: String Quartet No. 1 in G Minor, Op. 27: II. Romanze: Andantino - Allegro agitato
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    by artist: Edvard Grieg
    by artist: Oslo Quartet
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      type: MusicAlbum
      date published: 2006-04-18
    genre: classical
    genre: late-romantic-era
    genre: norwegian-classical
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    additional property: OTSVerifyInstructions
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      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:53:27Z
    audio: String Quartet No. 1 in G Minor, Op. 27: II. Romanze: Andantino - Allegro agitato
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album: A Guided Tour of the Romantic Era, Vol. 13
  type: MusicAlbum
  date published: 2013-03-12
album: A Guided Tour of Nationalism in the Romantic Era, Vol. 7
  type: MusicAlbum
  date published: 2013-03-19
album: Vita Nuova
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  date published: 2015-09-26
album: Dreamlike
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  track: The Tyger
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    by artist: Erik Westberg Vocal Ensemble
    by artist: Virve Karen
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      date published: 2026-07-02T11:38:34Z
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  track: Trois chansons bretonnes: No. 1, La nuit en mer
  track: Trois chansons bretonnes: No. 3, Soir d’été
  track: Drömmarne: No. 1, Stilla på himlen
  track: Drömmarne: No. 2, De till dalens hyddor smyga
  track: Drömmarne: No. 4, Ännu en dröm
  track: 4 Quartets, Op. 92: No. 1, O schöne Nacht!
  track: Drömmarne: No. 3, Till den gamles bädd de gå
  track: Drömmarne: No. 5, Och andra drömmar gå
  track: Drömmarne: No. 6, Vid sin lampa tänkar'n somnat
  track: Drömmarne: No. 7, Lärkan i skyn
  track: Drömmarne: No. 8, Med en barnbön på sin mun
album: Nordiska romanser
album: Irgens-Jensen · Halvorsen · Sinding
album: Hjalmar Borgstrøm Complete Works for Violin and Piano
album: Grieg: Violin Sonatas
album: Johan Halvorsen Chamber Music
album: Plagge ... In Circles
album: Grieg: Violin Sonatas Nos. 1-3
album: Fading Time
album: The Essential Henning Kraggerud
album: Grieg Violin Sonatas

Trois chansons bretonnes: No. 1, La nuit en mer
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by artist: Henk Badings
by artist: Erik Westberg Vocal Ensemble
by artist: Helge Kjekshus
by artist: Erik Westberg
in album: Dreamlike
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  date published: 2026-07-08T03:22:41Z
audio: Trois chansons bretonnes: No. 1, La nuit en mer
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Trois chansons bretonnes: No. 3, Soir d’été
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by artist: Erik Westberg Vocal Ensemble
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by artist: Erik Westberg
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  date published: 2026-07-08T08:56:20Z
audio: Trois chansons bretonnes: No. 3, Soir d’été
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Drömmarne: No. 1, Stilla på himlen
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by artist: Erik Westberg Vocal Ensemble
by artist: Helge Kjekshus
by artist: Erik Westberg
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genre: swedish-classical
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  date published: 2026-07-21T21:21:57Z
audio: Drömmarne: No. 1, Stilla på himlen
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Drömmarne: No. 2, De till dalens hyddor smyga
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additional property: OTSTimestamp
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  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 0xb0a81dc17c6134633ee511b4c1759b6cf4103093f8f705e1ced35cd54084b6d4. 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/SE2FO1300117.
  date published: 2026-07-08T03:53:27Z
audio: Drömmarne: No. 2, De till dalens hyddor smyga
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.331
  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: 0.472
  additional property: Energy
    type: PropertyValue
    value: 0.063
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.909
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.411
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.336
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Drömmarne: No. 4, Ännu en dröm
type: MusicRecording
duration: PT2M15S
duration ms: 135458
explicit: false
by artist: Adolf Fredrik Lindblad
by artist: Erik Westberg Vocal Ensemble
by artist: Helge Kjekshus
by artist: Erik Westberg
in album: Dreamlike
  type: MusicAlbum
  date published: 2013-05-02
genre: swedish-classical
isrc code: SE2FO1300119
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:33:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x65f6f90798b04c82e26abb8890103be5eef2ba561b01fc6012f7bdbe3d781fe6
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/SE2FO1300119
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f6f90798b04c82e26abb8890103be5eef2ba561b01fc6012f7bdbe3d781fe6. 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/SE2FO1300119.
  date published: 2026-07-08T03:20:19Z
audio: Drömmarne: No. 4, Ännu en dröm
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 159.184
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.263
  additional property: Energy
    type: PropertyValue
    value: 0.032
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.123
  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.301
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.598
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

4 Quartets, Op. 92: No. 1, O schöne Nacht!
type: MusicRecording
duration: PT3M5S
duration ms: 185734
explicit: false
by artist: Johannes Brahms
by artist: Erik Westberg Vocal Ensemble
by artist: Helge Kjekshus
by artist: Erik Westberg
in album: Dreamlike
  type: MusicAlbum
  date published: 2013-05-02
genre: classical
genre: german-romanticism
genre: late-romantic-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1795ee7e5906254d1f2ca865807b0d5abaf0d101349f05390ca72bd6b32336c. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/SE2FO1300107.
  date published: 2026-08-01T02:22:04Z
audio: 4 Quartets, Op. 92: No. 1, O schöne Nacht!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.167
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.207
  additional property: Energy
    type: PropertyValue
    value: 0.048
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.846
  additional property: Liveness
    type: PropertyValue
    value: 0.084
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.076
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.196
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: SE2FO1300107
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960497
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-08-01T02:22:04+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE2FO1300107
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960497
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960497
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T02:22:04+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

Drömmarne: No. 3, Till den gamles bädd de gå
type: MusicRecording
duration: PT2M53S
duration ms: 173337
explicit: false
by artist: Adolf Fredrik Lindblad
by artist: Erik Westberg Vocal Ensemble
by artist: Helge Kjekshus
by artist: Erik Westberg
in album: Dreamlike
  type: MusicAlbum
  date published: 2013-05-02
genre: swedish-classical
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d5725dafbb9dc93b86038b90fbd8953b9c7451e6a9bc4f0a016cae51ef4e39. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/SE2FO1300118.
  date published: 2026-07-30T01:34:28Z
audio: Drömmarne: No. 3, Till den gamles bädd de gå
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.283
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.211
  additional property: Energy
    type: PropertyValue
    value: 0.06
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.881
  additional property: Liveness
    type: PropertyValue
    value: 0.087
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.073
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.213
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: SE2FO1300118
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960187
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T01:34:28+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE2FO1300118
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960187
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960187
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:34:28+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

Drömmarne: No. 5, Och andra drömmar gå
type: MusicRecording
duration: PT1M57S
duration ms: 117553
explicit: false
by artist: Adolf Fredrik Lindblad
by artist: Erik Westberg Vocal Ensemble
by artist: Helge Kjekshus
by artist: Erik Westberg
in album: Dreamlike
  type: MusicAlbum
  date published: 2013-05-02
genre: swedish-classical
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27b53d20b137cfd599d40afeeb0024629005694b40851a8eb713cef74633c05. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/SE2FO1300120.
  date published: 2026-07-30T08:30:10Z
audio: Drömmarne: No. 5, Och andra drömmar gå
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.033
  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: 0.509
  additional property: Energy
    type: PropertyValue
    value: 0.103
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.89
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.492
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.177
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: SE2FO1300120
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960229
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T08:30:10+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE2FO1300120
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960229
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:30:10+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

Drömmarne: No. 6, Vid sin lampa tänkar'n somnat
type: MusicRecording
duration: PT2M47S
duration ms: 167856
explicit: false
by artist: Adolf Fredrik Lindblad
by artist: Erik Westberg Vocal Ensemble
by artist: Helge Kjekshus
by artist: Erik Westberg
in album: Dreamlike
  type: MusicAlbum
  date published: 2013-05-02
genre: swedish-classical
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932c565c7d550b35bf1fee61dc1e5e00d43d578d8cf3ee793855b0e69da13e0f. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/SE2FO1300121.
  date published: 2026-07-30T03:35:13Z
audio: Drömmarne: No. 6, Vid sin lampa tänkar'n somnat
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.316
  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: 0.009
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.776
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.137
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.988
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: SE2FO1300121
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960203
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T03:35:13+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE2FO1300121
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960203
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960203
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T03:35:13+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

Drömmarne: No. 7, Lärkan i skyn
type: MusicRecording
duration: PT1M54S
duration ms: 114769
explicit: false
by artist: Adolf Fredrik Lindblad
by artist: Erik Westberg Vocal Ensemble
by artist: Helge Kjekshus
by artist: Erik Westberg
in album: Dreamlike
  type: MusicAlbum
  date published: 2013-05-02
genre: swedish-classical
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8712e3fdcb7d65d557eca7e7f4eb638f2333952294fc135684f68d67f7f96af. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/SE2FO1300122.
  date published: 2026-07-29T13:09:35Z
audio: Drömmarne: No. 7, Lärkan i skyn
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.94
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.373
  additional property: Energy
    type: PropertyValue
    value: 0.055
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.874
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.216
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.702
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: SE2FO1300122
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960108
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T13:09:35+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE2FO1300122
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960108
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960108
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T13:09:35+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

Drömmarne: No. 8, Med en barnbön på sin mun
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audio: Drömmarne: No. 8, Med en barnbön på sin mun
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Suite für Violine Solo, Op. 123;I Introduction - Allegro risoluto
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Suite für Violine Solo, Op. 123;II Sarabande - Adagio
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Suite für Violine Solo, Op. 123;VI Minuetto I
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Violin Sonata No. 1 in F Major, Op. 8: II. Allegretto quasi andantino
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Violin Sonata No. 2 in G Major, Op. 13: III. Allegro animato
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Violin Sonata No. 3 in C Minor, Op. 45: II. Allegretto espressivo alla Romanza
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Violin Sonata No. 2 in G Major, Op. 13: I. Lento doloroso: Allegro vivace
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Nordiska romanser
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Irgens-Jensen · Halvorsen · Sinding
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track: Suite für Violine Solo, Op. 123;I Introduction - Allegro risoluto
track: Suite für Violine Solo, Op. 123;II Sarabande - Adagio
track: Suite für Violine Solo, Op. 123;VI Minuetto I

Hjalmar Borgstrøm Complete Works for Violin and Piano
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Grieg: Violin Sonatas
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Johan Halvorsen Chamber Music
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Plagge ... In Circles
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Grieg: Violin Sonatas Nos. 1-3
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Fading Time
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The Essential Henning Kraggerud
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A Guided Tour of Nationalism in the Romantic Era, Vol. 7
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Grieg Violin Sonatas
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