KELUN
type: MusicGroup
genre: anime
genre: j-rock
description: Kelun is a Japanese rock band signed by Sony Music Entertainment Japan. Kelun was originally a band named UTARI, formed in 2006. Their first album, "UTARI", was released in April. It took the indie c
popularity: 31
followers: 3748
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x68bd7a8f208fb63e4a85122ed55208bc5a29966c2d3ea87661d6da5ce262a96b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2f35ccc8-a3f7-4a22-a38f-4ce84cfc990d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2f35ccc8-a3f7-4a22-a38f-4ce84cfc990d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2f35ccc8-a3f7-4a22-a38f-4ce84cfc990d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bd7a8f208fb63e4a85122ed55208bc5a29966c2d3ea87661d6da5ce262a96b. 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/2f35ccc8-a3f7-4a22-a38f-4ce84cfc990d.json and https://artists.proofprofile.net/proofs/artist/2f35ccc8-a3f7-4a22-a38f-4ce84cfc990d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Astral Lamp
  type: MusicAlbum
  date published: 2007-11-14
album: Astral Lamp
  type: MusicAlbum
  date published: 2007-11-21
album: SIXTEEN GIRL
  type: MusicAlbum
  date published: 2008-02-13
album: SIXTEEN GIRL
  type: MusicAlbum
  date published: 2008-02-13
album: CHU-BURA
  type: MusicAlbum
  date published: 2008-06-11
  track: CHU-BURA
    type: MusicRecording
    duration: PT4M34S
    duration ms: 274138
    explicit: false
    by artist: KELUN
    in album: CHU-BURA
      type: MusicAlbum
      date published: 2008-06-11
    genre: anime
    genre: j-rock
    isrc code: JPU900801221
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T05:12:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7c75e4f35afea1e1c542500375c7e92f48d0c1b72193b58d23c052136648071c
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    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958670
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958670
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU900801221
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T05:26:23Z
    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 0x7c75e4f35afea1e1c542500375c7e92f48d0c1b72193b58d23c052136648071c. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/JPU900801221.
      date published: 2026-07-19T05:26:23Z
    audio: CHU-BURA
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 180.244
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.311
      additional property: Energy
        type: PropertyValue
        value: 0.961
      additional property: Speechiness
        type: PropertyValue
        value: 0.069
      additional property: Acousticness
        type: PropertyValue
        value: 0.021
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.068
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.41
      additional property: Loudness (dB)
        type: PropertyValue
        value: -1.897
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: KELUN
  type: MusicAlbum
  date published: 2008-09-03
album: KELUN
  type: MusicAlbum
  date published: 2008-10-01
  track: Boy's Don't Cry
    type: MusicRecording
    duration: PT3M44S
    duration ms: 224840
    explicit: false
    by artist: KELUN
    in album: KELUN
      type: MusicAlbum
      date published: 2008-10-01
    genre: anime
    genre: j-rock
    isrc code: JPU900802068
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T15:16:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7d1b2e3c3e38e0003b1f196b24b856130c114cba972a8e0586251333a7f50d96
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU900802068
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x7d1b2e3c3e38e0003b1f196b24b856130c114cba972a8e0586251333a7f50d96. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPU900802068.
      date published: 2026-07-05T01:12:41Z
    audio: Boy's Don't Cry
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.077
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: 一人分の愛

Danceability
type: PropertyValue
value: 0.376

Energy
type: PropertyValue
value: 0.965

Speechiness
type: PropertyValue
value: 0.075

Acousticness
type: PropertyValue
value: 0

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.275

Valence (Positivity)
type: PropertyValue
value: 0.175

Loudness (dB)
type: PropertyValue
value: -4.109

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Major

一人分の愛
type: MusicAlbum
date published: 2009-06-24