Goka
type: MusicGroup
description: thumb|right|260px|Nakanoshima Park is a town located in Ibaraki Prefecture, Japan. , the town had an estimated population of 8,162 in 2987 households and a population density of 353 persons per km2.
popularity: 2
followers: 9
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additional property: OTSVerifyInstructions
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  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 0x3862fe523344dadfe484cccfb80b6f81dda532472859e04de9694394fe690069. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce638ca8-279b-4944-bd13-5d61a32f59aa.json and https://artists.proofprofile.net/proofs/artist/ce638ca8-279b-4944-bd13-5d61a32f59aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
album: Nights of Love
  type: MusicAlbum
  date published: 2024-03-22
album: Password
  type: MusicAlbum
  date published: 2025-01-31
  track: Password
    type: MusicRecording
    duration: PT2M15S
    duration ms: 135429
    explicit: false
    by artist: Goka
    in album: Password
      type: MusicAlbum
      date published: 2025-01-31
    isrc code: QT3F32458632
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    subject of: OpenTimestamps Proof of Existence
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eccf63c8bb5e58015a45087c7bec589fc5900e57670f4035a6e24faf546e383. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QT3F32458632.
      date published: 2026-07-06T01:25:57Z
    audio: Password
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Musical Key
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        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
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        value: 4
      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
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      additional property: Liveness
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      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.237
      additional property: Loudness (dB)
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      additional property: Key Name
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        value: F
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album: Prince
  type: MusicAlbum
  date published: 2025-03-07