Huub Stapel
type: MusicGroup
description: Hubertus Wijnandus Jozef Marie (Huub) Stapel (born 2 December 1954, in Tegelen) is a Dutch actor. He is especially known from the films The Lift (1983), Flodder (1986) and Amsterdamned (1988) by Dick
popularity: 3
followers: 82
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xbabd73c8af44dacc147fae88305d7a36290c2d72ff0cdcc32dd35cbf571b5fb9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b706e5a7-3cb0-4b0b-9bd5-da86fcda29cc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b706e5a7-3cb0-4b0b-9bd5-da86fcda29cc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b706e5a7-3cb0-4b0b-9bd5-da86fcda29cc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0xbabd73c8af44dacc147fae88305d7a36290c2d72ff0cdcc32dd35cbf571b5fb9","name":"Huub Stapel","registered_at":"2026-06-20T15:31:45Z","symbol":"NIM1641763","token_address":"0x9fc0cb3f7b10d0e7b3355c9f6d5ce424715c48e6","type":"artist","uuid":"b706e5a7-3cb0-4b0b-9bd5-da86fcda29cc"}
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabd73c8af44dacc147fae88305d7a36290c2d72ff0cdcc32dd35cbf571b5fb9. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b706e5a7-3cb0-4b0b-9bd5-da86fcda29cc.json and https://artists.proofprofile.net/proofs/artist/b706e5a7-3cb0-4b0b-9bd5-da86fcda29cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xbabd73c8af44dacc147fae88305d7a36290c2d72ff0cdcc32dd35cbf571b5fb9","name":"Huub Stapel","registered_at":"2026-06-20T15:31:45Z","symbol":"NIM1641763","token_address":"0x9fc0cb3f7b10d0e7b3355c9f6d5ce424715c48e6","type":"artist","uuid":"b706e5a7-3cb0-4b0b-9bd5-da86fcda29cc"}
album: Ik Drink Niet Teveel
  type: MusicAlbum
  date published: 2024-02-02
track: Zeg Me Dat Het Niet Zo Is
  type: MusicRecording
  duration: PT2M31S
  duration ms: 151722
  explicit: false
  by artist: Huub Stapel
  in album: De Zevende Hemel (Officiële Soundtrack)
    type: MusicAlbum
    date published: 2016-11-14
  isrc code: NLUM71600637
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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  additional property: OTSHash
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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/NLUM71600637
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T21:09:47Z
  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 0xcd079056141999b0314e9b16a5d7f328b5f04951e0a5bf2fd00b583b6e581b6e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NLUM71600637.
    date published: 2026-07-29T21:09:47Z
  audio: Zeg Me Dat Het Niet Zo Is
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 6
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.06
    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.165
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.537
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor