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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 → block must exist at that height 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 0x785319f5e416fd295b1e14f586d67ade17860a5db8db7557885aece9581355f1. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a63988a0-051f-4533-a02e-7b65ead2e447.json and https://artists.proofprofile.net/proofs/artist/a63988a0-051f-4533-a02e-7b65ead2e447.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
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album: Between The Lines
album: Self-Portrait 9th Anniversary Single
album: 拡散希望
album: 唯一の人
album: Primal Union
album: Odhikar
album: 花
album: ノンフィクションをくれ
album: AT FIRST
album: MIRAI MATERIAL
album: 未来マテリアル
album: home sweet home
album: dorodoro
album: 泥々
album: HONTOUNO KOTOWO
album: 本当のことを
album: NAKED
album: ネイキッド
album: Reversal Bunny
album: 戦うあなたは誰よりも輝いて
album: Tatakauanatawadareyorimokagayaite
album: HIRYUJOUN
album: 飛竜乗雲
album: tie break
album: タイブレーク
album: VIPER
album: ヴァイパー

Self Portrait
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また一つ年を重ねて
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Self-Portrait 9th Anniversary Single
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track: Save My Seat
track: March On
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I Got This
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Corduroy Caviar & the Whiskey Pillow
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Save My Seat
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The Chase
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Purgatory
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Fugazi
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Valiant
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Odhikar
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track: Neel
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track: Notun Diner Gaan
track: Maya
track: Rod Brishti
track: Ucchasher Ghran
track: Upashona

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Notun Diner Gaan
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Maya
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Rod Brishti
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Ucchasher Ghran
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Upashona
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花
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ノンフィクションをくれ
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AT FIRST
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track: ライブハウスで逢えたら
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track: 掌
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track: ノンフィクションをくれ
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声
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此処に居たいと願う事
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SHITAGOKORO
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未来マテリアル
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dorodoro
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泥々
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HONTOUNO KOTOWO
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本当のことを
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NAKED
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ネイキッド
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Reversal Bunny
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date published: 2023-12-06
track: Reversal Bunny
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Reversal Bunny
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戦うあなたは誰よりも輝いて
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date published: 2024-04-06
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Tatakauanatawadareyorimokagayaite
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date published: 2024-04-06
track: Tatakauanatawadareyorimokagayaite
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HIRYUJOUN
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date published: 2024-05-01
track: Insomnia
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track: MadorimiGroove
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track: Reversal Bunny
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track: Kiseki
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track: Chiheisen
track: Dorodoro
track: song for you
track: Akogarewokoete
track: Tatakauanatawadareyorimokagayaite
track: Hontounokotowo
track: Naked
track: Mikanseino Lovesong
track: Syonen
track: home sweet home

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Chiheisen
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Dorodoro
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song for you
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Akogarewokoete
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Tatakauanatawadareyorimokagayaite
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Hontounokotowo
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Naked
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Mikanseino Lovesong
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Syonen
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home sweet home
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飛竜乗雲
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track: 微睡Groove
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track: Reversal Bunny
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track: 軌跡
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track: 地平線
track: 泥々
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track: 憧れを越えて
track: 戦うあなたは誰よりも輝いて
track: 本当のことを
track: ネイキッド
track: 未完成のラブソング
track: 少年
track: home sweet home

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地平線
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泥々
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song for you
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憧れを越えて
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戦うあなたは誰よりも輝いて
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本当のことを
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ネイキッド
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未完成のラブソング
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少年
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home sweet home
type: MusicRecording
duration: PT3M53S
duration ms: 233018
explicit: false
by artist: Self Portrait
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  date published: 2024-05-01
audio: home sweet home
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tie break
type: MusicAlbum
date published: 2025-03-22
track: tie break
  type: MusicRecording
  duration: PT3M27S
  duration ms: 207569
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    date published: 2025-03-22
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タイブレーク
type: MusicAlbum
date published: 2025-03-22
track: タイブレーク
  type: MusicRecording
  duration: PT3M27S
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    type: MusicAlbum
    date published: 2025-03-22
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      value: F
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VIPER
type: MusicAlbum
date published: 2025-09-01
track: VIPER
  type: MusicRecording
  duration: PT3M11S
  duration ms: 191850
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    type: MusicAlbum
    date published: 2025-09-01
  audio: VIPER
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      value: -3.082
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      value: B
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ヴァイパー
type: MusicAlbum
date published: 2025-09-01
track: ヴァイパー
  type: MusicRecording
  duration: PT3M11S
  duration ms: 191850
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    date published: 2025-09-01
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