De Limburgse Zusjes
type: MusicGroup
genre: nederpop
popularity: 7
followers: 228
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: 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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909fcca8390d422db90dae2dec6afcf9e0dfdefbb3bba6c1ebd197f2fc9f636e. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a095248-ecc1-426d-8e1e-0fe11747b48a.json and https://artists.proofprofile.net/proofs/artist/3a095248-ecc1-426d-8e1e-0fe11747b48a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
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album: De Jodelende Postillon
  type: MusicAlbum
  date published: 1963-10-02
album: Haar Verdriet
  type: MusicAlbum
  date published: 1964-12-09
album: Tirolerbal
  type: MusicAlbum
  date published: 1966-10-02
album: Zij Die Vergeten Zijn
  type: MusicAlbum
  date published: 1967-12-09
album: Ga Met Me Mee
  type: MusicAlbum
  date published: 1968-02-12
album: Ik wacht op jou
  type: MusicAlbum
  date published: 2015-12-11
track: Hollandse Hitmedley: Ik Sta op Wacht / Poen, Poen, Poen, Poen / Wenen / 't Huiske / De Trappelzak - Boogie ......
track: Hollandse Hitmedley: Vrij en Blij / Hoor, De Muzikanten / Als Een Wilde Orchidee / Kijk Eens in de Poppetjes van Mijn....

Hollandse Hitmedley: Ik Sta op Wacht / Poen, Poen, Poen, Poen / Wenen / 't Huiske / De Trappelzak - Boogie ......
type: MusicRecording
duration: PT12M45S
duration ms: 765143
explicit: false
by artist: The Ramblers
by artist: Willem Parel
by artist: Joop De Knegt
by artist: Drie Kleine Kleutertjes
by artist: Max Van Praag
by artist: The Butterflies
by artist: Black & White
by artist: De Kleine Heleentje
by artist: The Juke Box Sisters
by artist: De Limburgse Zusjes
by artist: Frits Rademacher
by artist: Annie De Reuver
in album: Hollandse Hits Van Toen, Deel 1
  type: MusicAlbum
  date published: 2007-01-13
isrc code: NLHR51273993
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d4ad7214eb460e4a7ea8f51596cad7da0e87217893c581f994942d5ea1e589. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR51273993.
  date published: 2026-07-02T03:55:08Z
audio: Hollandse Hitmedley: Ik Sta op Wacht / Poen, Poen, Poen, Poen / Wenen / 't Huiske / De Trappelzak - Boogie ......
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  additional property: Tempo (BPM)
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    value: 113.312
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
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    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.49
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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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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    value: 0.558
  additional property: Loudness (dB)
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    value: -10.191
  additional property: Key Name
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    value: C
  additional property: Mode Name
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Hollandse Hitmedley: Vrij en Blij / Hoor, De Muzikanten / Als Een Wilde Orchidee / Kijk Eens in de Poppetjes van Mijn....
type: MusicRecording
duration: PT12M22S
duration ms: 742300
explicit: false
by artist: Willem Parel
by artist: Helma & Selma
by artist: Willy Alberti
by artist: Black & White
by artist: Orkest Zonder Naam
by artist: Vrij En Blij
by artist: De Limburgse Zusjes
by artist: Toby Rix
by artist: Annie De Reuver
in album: Hollandse Hits van Toen, Deel 2
  type: MusicAlbum
  date published: 2007-01-13
isrc code: NLHR51273975
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
  type: PropertyValue
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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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f27bcacc796c5d40f51aefa725da07f638cfaf4404ce815ec26d65dc76aaff1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR51273975.
  date published: 2026-07-02T03:55:08Z
audio: Hollandse Hitmedley: Vrij en Blij / Hoor, De Muzikanten / Als Een Wilde Orchidee / Kijk Eens in de Poppetjes van Mijn....
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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: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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