NOTOK
type: MusicGroup
genre: future bass
genre: melodic bass
description: NOTOK is the eighth single by Japanese rock band Hitorie. The digital version was released on November 6, 2024, with the CD releasing on November 27. It is the first release since their fourth studio
popularity: 14
followers: 702
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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 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
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  date published: 2026-06-14T05:36:59Z
album: Show U How
  type: MusicAlbum
  date published: 2018-05-21
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  type: MusicAlbum
  date published: 2018-10-15
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  type: MusicAlbum
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  type: MusicAlbum
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album: Get Down
  type: MusicAlbum
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album: Get Down
  type: MusicAlbum
  date published: 2020-05-13
album: Last Night
  type: MusicAlbum
  date published: 2020-06-26
album: So High
  type: MusicAlbum
  date published: 2020-07-21
album: So High
  type: MusicAlbum
  date published: 2020-07-21
album: Pure Magic
  type: MusicAlbum
  date published: 2021-04-22
album: Frequency
  type: MusicAlbum
  date published: 2021-07-16
track: Dying Day - NOTOK Remix
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  duration: PT2M55S
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  by artist: William Black
  by artist: Prettyheartbreak
  by artist: NOTOK
  in album: Pages (The Remixes)
    type: MusicAlbum
    date published: 2020-02-20
  popularity: 18
  genre: pop-edm
  genre: melodic-dubstep
  isrc code: GBKPL2086535
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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 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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    date published: 2026-07-29T19:35:34Z
  audio: Dying Day - NOTOK Remix
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    additional property: Instrumentalness
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track: Blindspot (NOTOK Remix)
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  duration: PT3M39S
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  by artist: NURKO
  by artist: Devon Baldwin
  by artist: NOTOK
  in album: Blindspot (Remixes)
    type: MusicAlbum
    date published: 2021-02-25
  genre: pop-edm
  genre: melodic-dubstep
  isrc code: USA2P2107211
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  subject of: OpenTimestamps Proof of Existence
  audio: Blindspot (NOTOK Remix)

OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592a90b4d5239dd72d6fe4efbf6dc439626305c1b7f9a3088f75f8803209ee62. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA2P2107211.
date published: 2026-07-08T03:20:19Z

Blindspot (NOTOK Remix)
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