Gustav Lorentzen
type: MusicGroup
genre: norwegian pop
description: Gustav Lorentzen (28 September 1947 – 21 April 2010), also known by his stage name Ludvigsen, was a Norwegian singer-songwriter, best known from being half of the successful duo Knutsen & Ludvigsen, a
popularity: 13
followers: 1263
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/ee90effd-066f-426a-8063-6318d137efb9.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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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  date published: 2026-06-15T16:39:18Z
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album: Ludvigsens Hostesaft
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  date published: 1987-01-01
  track: Forrest i køen
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    by artist: Gustav Lorentzen
    in album: Ludvigsens Hostesaft
      type: MusicAlbum
      date published: 1987-01-01
    genre: norwegian pop
    isrc code: NOUM70600414
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:15:01Z
    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 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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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d5308d8df7337834ce121332898afec427c0b0263e0a06f907b18810ce2960. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NOUM70600414.
      date published: 2026-07-20T21:15:01Z
    audio: Forrest i køen
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      additional property: Valence (Positivity)
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album: 1.Klasse
  type: MusicAlbum
  date published: 1994-09-22
album: 1.Klasse
  type: MusicAlbum
  date published: 1994-09-22
album: Kanskje Kommer Kongen
  type: MusicAlbum
  date published: 1995-09-22
album: Kanskje Kommer Kongen
  type: MusicAlbum
  date published: 1995-09-22
album: Amadeus
  type: MusicAlbum
  date published: 1997-09-22
album: Amadeus
  type: MusicAlbum
  date published: 1997-09-22
track: Grevling i taket
  type: MusicRecording
  duration: PT2M58S
  duration ms: 178720
  explicit: false
  by artist: Øystein Dolmen
  by artist: Gustav Lorentzen
  by artist: Noteservice Wind Band
  by artist: Reid Gilje
  in album: Momentum Sequences - New Music for Concert Band 2023-2024
    type: MusicAlbum
    date published: 2023-06-26
  popularity: 5
  isrc code: NODGN2303030
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NODGN2303030
  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 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 0x0f53ce19662d4ee0b019a6dd79b7f917a34bd8f42c3b9b1f52ffdd4a9acad69c. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/NODGN2303030.
    date published: 2026-07-30T00:53:20Z
  audio: Grevling i taket
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
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track: Bestefarvise
track: Godmorgen Norge (Good Morning Norway)
track: Kanskje kommer Kongen - Perhaps the King is Coming

Time Signature
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value: 5

Danceability
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Energy
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Speechiness
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Acousticness
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Instrumentalness
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value: 0.862

Liveness
type: PropertyValue
value: 0.13

Valence (Positivity)
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value: 0.705

Loudness (dB)
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value: -18.975

Key Name
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value: F

Mode Name
type: PropertyValue
value: Major

Bestefarvise
type: MusicRecording
duration: PT2M45S
duration ms: 165114
explicit: false
by artist: Øystein Dolmen
by artist: Gustav Lorentzen
by artist: Noteservice Concert Band
by artist: Reid Gilje
in album: Time for Celebration - New Music for Concert Band - Demo Tracks 2021-2022
  type: MusicAlbum
  date published: 2021-07-16
isrc code: NODGN2107090
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34Z
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 0x885c95c226284bce475fde62e794f5aff6def8e57a63deeffacec345516c6fd1. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NODGN2107090.
  date published: 2026-07-29T19:35:34Z
audio: Bestefarvise
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.841
  additional property: Musical Key
    type: PropertyValue
    value: 10
  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
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  additional property: Acousticness
    type: PropertyValue
    value: 0.837
  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
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Godmorgen Norge (Good Morning Norway)
type: MusicRecording
duration: PT2M7S
duration ms: 127663
explicit: false
by artist: Øystein Dolmen
by artist: Gustav Lorentzen
by artist: Dolmen
by artist: Lorentzen
by artist: Elisabeth Vannebo
by artist: Noteservice Wind Ensemble
in album: 25 or 6 to 4 - New Music for Flexible Instrumentation - Demo Tracks 2015-2016
  type: MusicAlbum
  date published: 2015-07-06
isrc code: NODGN1503200
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
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NODGN1503200
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12Z
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 0x6aafcd0e178e222a2ddfc91c78926cce558949c418c40f1f0aed6fad9edce3e0. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NODGN1503200.
  date published: 2026-07-31T18:48:12Z
audio: Godmorgen Norge (Good Morning Norway)
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    type: PropertyValue
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  additional property: Acousticness
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Kanskje kommer Kongen - Perhaps the King is Coming
type: MusicRecording
duration: PT2M22S
duration ms: 142923
explicit: false
by artist: Øystein Dolmen
by artist: Gustav Lorentzen
by artist: Norwegian Naval Forces' Band
by artist: Reid Gilje
in album: Omnia - New Music for Concert Band 2024-2025
  type: MusicAlbum
  date published: 2024-06-26
isrc code: QM6P42448033
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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  value: 2026-07-07T08:45:47+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
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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 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 0x624e7aad0afe3f2dd76babb24e58263996383a536f4bbc8c68e5bf1512135fa5. 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/QM6P42448033.
  date published: 2026-07-08T03:20:19Z
audio: Kanskje kommer Kongen - Perhaps the King is Coming
  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
    value: 5
  additional property: Danceability
    type: PropertyValue
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    type: PropertyValue
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    type: PropertyValue
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  additional property: Acousticness
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  additional property: Liveness
    type: PropertyValue
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