Jun Ishikawa
type: MusicGroup
description: Kiyoshi Ishikawa (石川 淳, Ishikawa Kiyoshi; 7 March 1899 – 29 December 1987), known by his pen name Jun Ishikawa (written in the same kanji), was a Japanese modernist author, translator and literary cri
popularity: 7
followers: 494
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: 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5aa6f7b6d552bba21e7fcb2f37b999b1ae8f4b3adf8a725f1b7bcf7bc3758a4. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c0a2ddac-17c6-4f3b-bc9b-571c6e7f1dbe.json and https://artists.proofprofile.net/proofs/artist/c0a2ddac-17c6-4f3b-bc9b-571c6e7f1dbe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
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album: Robo -Story of the Incomplete Robot and a Doctor-
  type: MusicAlbum
  date published: 2022-10-17
album: Green Greens Theme Orchestra (From "Kirby Super Star")
  type: MusicAlbum
  date published: 2022-11-15
album: Green Greens (From "Kirby's Dream Land")
  type: MusicAlbum
  date published: 2025-10-31
track: City Trial (From "Kirby Air Ride")

City Trial (From "Kirby Air Ride")
type: MusicRecording
duration: PT2M17S
duration ms: 137000
explicit: false
by artist: Shogo Sakai
by artist: Jun Ishikawa
by artist: Hirokazu Ando
by artist: Tadashi Ikegami
by artist: Akira Miyagawa
by artist: Will Pisani
in album: Aural Nostalgia, Vol. 2
  type: MusicAlbum
  date published: 2020-05-01
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additional property: OTSVerificationAPI
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: City Trial (From "Kirby Air Ride")
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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    value: 5
  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)
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  additional property: Loudness (dB)
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  additional property: Key Name
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    value: G
  additional property: Mode Name
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    value: Minor