Floortje Smit
type: MusicGroup
description: thumb|right |220px |Floortje Smit (2010) Floortje Smit (born 16 July 1983, in Amsterdam) is a Dutch singer. Career In Idols Smit's career started in season three of the Dutch TV talent show Idols, t
popularity: 5
followers: 1545
additional property: CopyrightID
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: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690af4c7c8f7fe5be26ecc7e87fe266349f9873e54923a8922b77497bb485f02. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d25ec12-973f-49b2-8bd3-3bf02f49cd16.json and https://artists.proofprofile.net/proofs/artist/8d25ec12-973f-49b2-8bd3-3bf02f49cd16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x690af4c7c8f7fe5be26ecc7e87fe266349f9873e54923a8922b77497bb485f02","name":"Floortje Smit","registered_at":"2026-06-17T14:56:04Z","symbol":"NIM1430713","token_address":"0xd3551c1c346adb69a3f9166ef6e66cea0b445987","type":"artist","uuid":"8d25ec12-973f-49b2-8bd3-3bf02f49cd16"}
album: Alone
  type: MusicAlbum
  date published: 2012-09-08
  track: Alone - From The voice of Holland
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198930
    explicit: false
    by artist: Floortje Smit
    in album: Alone
      type: MusicAlbum
      date published: 2012-09-08
    isrc code: NLZ291200170
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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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc573059bce744756037b7efc66415af34ad0428dee42f9c11c2537d21a30ceec. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NLZ291200170.
      date published: 2026-07-18T04:13:26Z
    audio: Alone - From The voice of Holland
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 87.928
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.515
      additional property: Energy
        type: PropertyValue
        value: 0.422
      additional property: Speechiness
        type: PropertyValue
        value: 0.024
      additional property: Acousticness
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        value: 0.535
      additional property: Instrumentalness
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      additional property: Liveness
        type: PropertyValue
        value: 0.103
      additional property: Valence (Positivity)
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        value: 0.205
      additional property: Loudness (dB)
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        value: -6.431
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Alone (From The Voice Of Holland)
  type: MusicAlbum
  date published: 2012-09-08
album: Heavy Cross
  type: MusicAlbum
  date published: 2012-11-17
album: Heavy Cross
  type: MusicAlbum
  date published: 2012-11-17
album: She Wolf
  type: MusicAlbum
  date published: 2012-11-28
album: She Wolf (From The Voice Of Holland)
  type: MusicAlbum
  date published: 2012-11-28
album: Let Her Go (From The Voice Of Holland)
  type: MusicAlbum
  date published: 2012-12-01
album: Let Her Go
  type: MusicAlbum
  date published: 2012-12-01
album: Every Breath You Take
  type: MusicAlbum
  date published: 2012-12-08
album: Every Breath You Take
  type: MusicAlbum
  date published: 2012-12-08