Kaija Koo
type: MusicGroup
genre: finnish pop
genre: finnish rock
genre: iskelmä
description: Kaija Kokkola (born 10 September 1962), better known by her stage name Kaija Koo, is a Finnish singer. Kokkola began her career when she was 17 years old, as a member of the band Steel City, later kn
popularity: 47
followers: 163434
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x52fb32c04ed30a5896ce6a8b2492d66217fe408213f0a21dcb9de3e362dc8bd7
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/09f673d7-77fc-4dfb-b871-4cf40562742d.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
  type: PropertyValue
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fb32c04ed30a5896ce6a8b2492d66217fe408213f0a21dcb9de3e362dc8bd7. 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/09f673d7-77fc-4dfb-b871-4cf40562742d.json and https://artists.proofprofile.net/proofs/artist/09f673d7-77fc-4dfb-b871-4cf40562742d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x52fb32c04ed30a5896ce6a8b2492d66217fe408213f0a21dcb9de3e362dc8bd7","name":"Kaija Koo","registered_at":"2026-06-11T11:26:34Z","symbol":"NIM0013462","token_address":"0x8c61a246755edbf68530c642ad160df061b83832","type":"artist","uuid":"09f673d7-77fc-4dfb-b871-4cf40562742d"}
album: Tanssii kuin John Travolta (Vain elämää kausi 7)
  type: MusicAlbum
  date published: 2017-09-15
track: Tinakenkätyttö
  type: MusicRecording
  duration: PT4M29S
  duration ms: 269026
  explicit: false
  by artist: Kaija Koo
  in album: Iskelmä Suomi - Kymmenen tarinaa kaihosta, kilometreistä ja iskelmästä
    type: MusicAlbum
    date published: 2013-11-29
  popularity: 46
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIPFP9900128
  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 0x4567663896abe9ee934a9b829da2694e4341cd1e2cb952bbf61d84a92609fcfc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIPFP9900128.
    date published: 2026-06-13T12:47:07Z
  audio: Tinakenkätyttö
    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
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    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
      type: PropertyValue
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    additional property: Liveness
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    additional property: Valence (Positivity)
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      value: 0.628
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.114
    additional property: Key Name
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      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor