Peter Schaap
type: MusicGroup
genre: nederpop
description: thumb|Peter Schaap Peter Schaap (24 October 1946 – 3 January 2025) was a Dutch singer and writer. Life and career Schaap was born in Groningen. He started his music career in 1974. He released four
popularity: 21
followers: 798
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-12T19:24:56Z
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a488301fd814b33d0005a9e121405baeaff334f46628637d0a93e04a9848528. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7110579-2564-4e62-ae24-c2b4fa6cac03.json and https://artists.proofprofile.net/proofs/artist/c7110579-2564-4e62-ae24-c2b4fa6cac03.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x8a488301fd814b33d0005a9e121405baeaff334f46628637d0a93e04a9848528","name":"Peter Schaap","registered_at":"2026-06-12T09:26:55Z","symbol":"NIM0255868","token_address":"0xaf5c4a45fb8482b85c7c9cdab21bc2d3401b4891","type":"artist","uuid":"c7110579-2564-4e62-ae24-c2b4fa6cac03"}
album: De Hoge Heren van 't Dorp
  type: MusicAlbum
  date published: 1974
album: Vliegen Als Een Vogel
  type: MusicAlbum
  date published: 1975
album: Als De Trein Rijdt Naar Het Westen
  type: MusicAlbum
  date published: 1975
  track: Vliegen Als Een Vogel
    type: MusicRecording
    duration: PT3M25S
    duration ms: 205013
    explicit: false
    by artist: Peter Schaap
    in album: Als De Trein Rijdt Naar Het Westen
      type: MusicAlbum
      date published: 1975
    genre: nederpop
    isrc code: NLA241700758
    additional property: CopyrightID
    additional property: CopyrightStatus
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      value: registered
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      value: https://blockstream.info/api/block-height/958300
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA241700758
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T16:14:30Z
    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 0x89bca9afde3cb389ac1a41b3b3d8eb5bf46059e580198d44108236e5bd8dfb7c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NLA241700758.
      date published: 2026-07-16T16:14:30Z
    audio: Vliegen Als Een Vogel
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.406
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.47
      additional property: Energy
        type: PropertyValue
        value: 0.431
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.432
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.047
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.638
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.545
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Als Een Kameleon
  type: MusicAlbum
  date published: 1975
album: Adem Mijn Adem
  type: MusicAlbum
  date published: 1975-12-09
album: Als Je Wist Hoe Lang Een Nacht Kan Duren
  type: MusicAlbum
  date published: 1976
album: Mensen Blijven Mensen
  type: MusicAlbum
  date published: 1981
album: Hollands Glorie
  type: MusicAlbum
  date published: 2006-06-26
  track: Adem Mijn Adem
    type: MusicRecording
    duration: PT2M58S
    duration ms: 178426
    explicit: false
    by artist: Peter Schaap
    in album: Hollands Glorie
      type: MusicAlbum
      date published: 2006-06-26
    genre: nederpop
    isrc code: NLA240000291
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    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      value: 2026-06-06T14:23:29+00:00
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      value: https://explorer.copyrightchains.com/tx/0x4d028c63eb835753b5c5a126cad4ff8ecc6ccfb021c7073ad5226140cea4bae1
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
      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
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d028c63eb835753b5c5a126cad4ff8ecc6ccfb021c7073ad5226140cea4bae1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA240000291.
      date published: 2026-07-03T19:59:51Z
    audio: Adem Mijn Adem
      type: AudioObject
      additional property: Tempo (BPM)
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        value: 101.012
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
track: Adem Mijn Adem

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.438

Energy
type: PropertyValue
value: 0.427

Speechiness
type: PropertyValue
value: 0.031

Acousticness
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value: 0.836

Instrumentalness
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value: 0.003

Liveness
type: PropertyValue
value: 0.064

Valence (Positivity)
type: PropertyValue
value: 0.562

Loudness (dB)
type: PropertyValue
value: -13.39

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Adem Mijn Adem
type: MusicRecording
duration: PT3M4S
duration ms: 184386
explicit: false
by artist: Peter Schaap
in album: Alle 100 Goed! Deel 2
  type: MusicAlbum
  date published: 2022-02-02
isrc code: NLA240000291
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additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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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  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA240000291
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
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 0x4d028c63eb835753b5c5a126cad4ff8ecc6ccfb021c7073ad5226140cea4bae1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLA240000291.
  date published: 2026-06-13T12:53:06Z
audio: Adem Mijn Adem
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 2
  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
    value: 0.033
  additional property: Acousticness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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