Ulla Billquist
type: MusicGroup
genre: swedish ballads
description: Ulla Ebba Ingegerd Billquist, (née Schönström 14 August 1907 – 6 July 1946), was a Swedish female schlager singer. She was successful during the early 1940s. Personal life Ulla Billquist married thre
popularity: 24
followers: 3852
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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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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  date published: 2026-06-12T19:24:56Z
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album: Ulla Billquist / Melodier som bedåra
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  date published: 1995-01-01
album: Ulla Billquist
  type: MusicAlbum
  date published: 2003
album: Ulla Billquist
  type: MusicAlbum
  date published: 2003
  track: En Månskenspromenad
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    genre: swedish ballads
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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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6545ea4aa64779f57980e1228cbf9ab6ce1b2e273bfcc217904463812e26276e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOX9X3742807 — a six-check JSON result.
      date published: 2026-07-03T19:59:51Z
    audio: En Månskenspromenad
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  track: Säg Det Med Ett Leende
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    genre: swedish ballads
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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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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62abbe94845d18a79031d860d43c4fe299258cbe74b08ebf83becbdbe4071623. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOX9X3742809 — a six-check JSON result.
      date published: 2026-07-16T08:56:51Z
    audio: Säg Det Med Ett Leende
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  track: Kring De Små Husen Vid Gränderna I Hamnen (Under Der Roten Laterne Von St. Pauli)
  track: Jag Har En Liten Melodi
album: Ulla Billquist: Viklen melodi det skall bli – 21 Original Recordings (Recorded 1939-1940)
album: Vilken melodi det skall bli
album: Vilken melodi det skall bli - 21 originalinspelningar från åren 1939-1940
album: Den Kompletta Ulla Billquist 1929-1932
album: Den Kompletta Ulla Billquist 1936-1938
album: Den Kompletta Ulla Billquist 1941
album: Den Kompletta Ulla Billquist 1939-1941
album: Den Kompletta Ulla Billquist 1938-1939
album: Den Kompletta Ulla Billquist 1935-1936
album: Den Kompletta Ulla Billquist 1934-1935
album: Den Kompletta Ulla Billquist 1933-1934
album: Den Kompletta Ulla Billquist 1932-1933
album: Den Kompletta Ulla Billquist 1941-1942
album: Den Kompletta Ulla Billquist 1931-1941 (Bonus Version)
album: Den Kompletta Ulla Billquist 1943-1944
album: Den Kompletta Ulla Billquist 1944
album: Den Kompletta Ulla Billquist 1942-1943
album: Den Kompletta Ulla Billquist 1931-1941 (Bonus)
album: Den Kompletta Ulla Billquist 1941-1943 (Bonus)
album: Den Kompletta Ulla Billquist 1941-1943 (Bonus Version)
album: Den Kompletta Ulla Billquist 1944-1946
album: Den Kompletta Ulla Billquist 1943-1945 (Bonus Version)
album: Den Kompletta Ulla Billquist 1943-1945 (Bonus)
album: Ulla Billquist sjunger Jules Sylvain, vol 1
album: Ulla Billquist sjunger Jules Sylvain, vol 2
album: Min soldat
album: Öppna ditt fönster
track: Julens Vackra Stjarna
track: Nyarshalsning
track: En sommardag
track: Min Soldat
track: Räkna de lyckliga stunderna blott
track: Under takåsarna i Paris

Instrumentalness
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Liveness
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Valence (Positivity)
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Loudness (dB)
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Mode Name
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Kring De Små Husen Vid Gränderna I Hamnen (Under Der Roten Laterne Von St. Pauli)
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duration: PT3M12S
duration ms: 192546
explicit: false
by artist: Ulla Billquist
in album: Ulla Billquist
  type: MusicAlbum
  date published: 2003
genre: swedish ballads
isrc code: NOX9X3742815
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-07-20T11:48:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xe63945c6646f2e8c8882fa98d851dbb5be4ec29169cb5ced695b34c4af7f891f. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOX9X3742815 — a six-check JSON result.
  date published: 2026-07-20T11:48:10Z
audio: Kring De Små Husen Vid Gränderna I Hamnen (Under Der Roten Laterne Von St. Pauli)
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Jag Har En Liten Melodi
type: MusicRecording
duration: PT3M7S
duration ms: 187586
explicit: false
by artist: Ulla Billquist
in album: Ulla Billquist
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  date published: 2003
genre: swedish ballads
isrc code: NOX9X3742819
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additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x010848bd2abe57f18d4ffdd0307d4d6756261e9d6f8529c76c854075da45c4d5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOX9X3742819 — a six-check JSON result.
  date published: 2026-07-05T01:12:41Z
audio: Jag Har En Liten Melodi
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Ulla Billquist: Viklen melodi det skall bli – 21 Original Recordings (Recorded 1939-1940)
type: MusicAlbum
date published: 2004-01-01

Vilken melodi det skall bli
type: MusicAlbum
date published: 2004-03-15

Vilken melodi det skall bli - 21 originalinspelningar från åren 1939-1940
type: MusicAlbum
date published: 2004-03-15

Den Kompletta Ulla Billquist 1929-1932
type: MusicAlbum
date published: 2010-11-01

Den Kompletta Ulla Billquist 1929-1932
type: MusicAlbum
date published: 2010-11-01

Den Kompletta Ulla Billquist 1936-1938
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1941
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1939-1941
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1938-1939
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1936-1938
type: MusicAlbum
date published: 2010-11-02
track: Nu Ska Vi Opp, Opp, Opp
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    date published: 2010-11-02
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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    value: 2026-07-03T19:59:51Z
  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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    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-03T19:59:51Z
  audio: Nu Ska Vi Opp, Opp, Opp
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Den Kompletta Ulla Billquist 1935-1936
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1934-1935
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1933-1934
type: MusicAlbum
date published: 2010-11-02
track: En Stilla Flirt
  type: MusicRecording
  duration: PT2M45S
  duration ms: 165880
  explicit: false
  by artist: Ulla Billquist
  in album: Den Kompletta Ulla Billquist 1933-1934
    type: MusicAlbum
    date published: 2010-11-02
  genre: swedish ballads
  isrc code: SEVCE1000516
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T02:30:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8945accc5b3655e7028db5e3ee0dd4593b675d9551613263f560c24757b1326f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956474
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVCE1000516
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T08:56:35Z
  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 0x8945accc5b3655e7028db5e3ee0dd4593b675d9551613263f560c24757b1326f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVCE1000516 — a six-check JSON result.
    date published: 2026-07-03T08:56:35Z
  audio: En Stilla Flirt
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
      value: 0.434
    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: Valence (Positivity)
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Den Kompletta Ulla Billquist 1932-1933
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1933-1934
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1941
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1938-1939
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1939-1941
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1935-1936
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1932-1933
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1934-1935
type: MusicAlbum
date published: 2010-11-02

Den Kompletta Ulla Billquist 1941-1942
type: MusicAlbum
date published: 2010-11-03
track: Godnatt-Valsen (Auld Lang Syne/The Farewell Waltz)
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181653
  explicit: false
  by artist: Ulla Billquist
  in album: Den Kompletta Ulla Billquist 1941-1942
    type: MusicAlbum
    date published: 2010-11-03
  genre: swedish ballads
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVCE1001208
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  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 0x152f335c8600b1bf116ab7fd374fd1c60aa50a835fd3b19a9b59f01ae26ee268. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVCE1001208 — a six-check JSON result.
    date published: 2026-07-05T10:01:46Z
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
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    additional property: Key Name
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Den Kompletta Ulla Billquist 1931-1941 (Bonus Version)
type: MusicAlbum
date published: 2010-11-03

Den Kompletta Ulla Billquist 1941-1942
type: MusicAlbum
date published: 2010-11-03

Den Kompletta Ulla Billquist 1943-1944
type: MusicAlbum
date published: 2010-11-03

Den Kompletta Ulla Billquist 1944
type: MusicAlbum
date published: 2010-11-03

Den Kompletta Ulla Billquist 1942-1943
type: MusicAlbum
date published: 2010-11-03

Den Kompletta Ulla Billquist 1931-1941 (Bonus)
type: MusicAlbum
date published: 2010-11-03

Den Kompletta Ulla Billquist 1941-1943 (Bonus)
type: MusicAlbum
date published: 2010-11-03

Den Kompletta Ulla Billquist 1944
type: MusicAlbum
date published: 2010-11-03

Den Kompletta Ulla Billquist 1943-1944
type: MusicAlbum
date published: 2010-11-03

Den Kompletta Ulla Billquist 1942-1943
type: MusicAlbum
date published: 2010-11-03

Den Kompletta Ulla Billquist 1941-1943 (Bonus Version)
type: MusicAlbum
date published: 2010-11-03

Den Kompletta Ulla Billquist 1944-1946
type: MusicAlbum
date published: 2010-11-04

Den Kompletta Ulla Billquist 1944-1946
type: MusicAlbum
date published: 2010-11-04

Den Kompletta Ulla Billquist 1943-1945 (Bonus Version)
type: MusicAlbum
date published: 2010-11-04

Den Kompletta Ulla Billquist 1943-1945 (Bonus)
type: MusicAlbum
date published: 2010-11-04

Ulla Billquist sjunger Jules Sylvain, vol 1
type: MusicAlbum
date published: 2022-04-29

Ulla Billquist sjunger Jules Sylvain, vol 2
type: MusicAlbum
date published: 2022-05-13

Min soldat
type: MusicAlbum
date published: 2022-12-15

Öppna ditt fönster
type: MusicAlbum
date published: 2023-02-23

Öppna ditt fönster
type: MusicAlbum
date published: 2023-02-23

Julens Vackra Stjarna
type: MusicRecording
duration: PT3M29S
duration ms: 209200
explicit: false
by artist: Einar Westling
by artist: Ulla Billquist
in album: Jultoner från förr - Originalinspelningar från 30-, 40- och 50-talet
  type: MusicAlbum
  date published: 2005-11-16
isrc code: HKI190615202
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
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190615202
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0x8861c33b77699c1f38e2f68aa0e611fd380a67d5eef8e32bd59704051c6152f9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190615202 — a six-check JSON result.
  date published: 2026-06-13T12:47:07Z
audio: Julens Vackra Stjarna
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 183.42
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.267
  additional property: Energy
    type: PropertyValue
    value: 0.179
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.353
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Nyarshalsning
type: MusicRecording
duration: PT3M19S
duration ms: 199906
explicit: false
by artist: Einar Westling
by artist: S.Runo
by artist: Ulla Billquist
in album: Jultoner från förr - Originalinspelningar från 30-, 40- och 50-talet
  type: MusicAlbum
  date published: 2005-11-16
isrc code: HKI190615242
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-01-28T19:31:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaebbe1430288fb98d7e96b7ed2f4958fc05e33667f0d1d2d795a66054d631f3a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190615242
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0xaebbe1430288fb98d7e96b7ed2f4958fc05e33667f0d1d2d795a66054d631f3a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190615242 — a six-check JSON result.
  date published: 2026-06-13T12:47:07Z
audio: Nyarshalsning
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.318
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.357
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.249
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.178
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
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En sommardag
type: MusicRecording
duration: PT3M14S
duration ms: 194000
explicit: false
by artist: Ulla Billquist
by artist: Walter Larsson
in album: Sommartoner från förr - originalinspelningar från 30-, 40- och 50-talen
  type: MusicAlbum
  date published: 2005-06-23
isrc code: QMDA61872433
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-01-28T22:08:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa4d28bc4ffe028a63d31fa2c383ede554201c9a394e1862f40ea87e39cc0db25
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61872433
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0xa4d28bc4ffe028a63d31fa2c383ede554201c9a394e1862f40ea87e39cc0db25. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61872433 — a six-check JSON result.
  date published: 2026-06-13T12:47:07Z
audio: En sommardag
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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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: 4
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  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: 0.334
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.134
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Min Soldat
type: MusicRecording
duration: PT3M16S
duration ms: 196400
explicit: false
by artist: Ulla Billquist
in album: Minnenas Musik Vol.1
  type: MusicAlbum
  date published: 2000-01-01
isrc code: SEAZE9412010
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T02:55:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2a01a5707dff52d9cf045f15ba8a6855134cf880635b03bbbd35a58ff22a2a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAZE9412010
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0xc2a01a5707dff52d9cf045f15ba8a6855134cf880635b03bbbd35a58ff22a2a5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAZE9412010 — a six-check JSON result.
  date published: 2026-06-13T13:32:09Z
audio: Min Soldat
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.167
  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
    type: PropertyValue
    value: 0.561
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.005
  additional property: Liveness
    type: PropertyValue
    value: 0.134
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.527
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Räkna de lyckliga stunderna blott
type: MusicRecording
duration: PT3M10S
duration ms: 190573
explicit: false
by artist: Ulla Billquist
in album: Melodier som bedåra 1944
  type: MusicAlbum
  date published: 2007-01-01
isrc code: SEAZE9411040
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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/SEAZE9411040
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
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 0xe2ad5160c7437d08597b7c97d51e5eafca0e420007cf41ae7cd3bed5c2259503. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAZE9411040 — a six-check JSON result.
  date published: 2026-07-31T17:29:52Z
audio: Räkna de lyckliga stunderna blott
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  additional property: Musical Key
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    value: 1
  additional property: Time Signature
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    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.295
  additional property: Energy
    type: PropertyValue
    value: 0.2
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.347
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.959
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Under takåsarna i Paris
type: MusicRecording
duration: PT3M7S
duration ms: 187733
explicit: false
by artist: Ulla Billquist
in album: Melodier som bedåra 1944
  type: MusicAlbum
  date published: 2007-01-01
isrc code: SEAZE9411090
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
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959132
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAZE9411090
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T13:20:46Z
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 0x86a53cf1d7a726de735c4395a1b6d4de58f8aaddf5654af8196cdb564e8e7bb0. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAZE9411090 — a six-check JSON result.
  date published: 2026-07-22T13:20:46Z
audio: Under takåsarna i Paris
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  additional property: Musical Key
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  additional property: Time Signature
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    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
    value: 0.168
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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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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