kousei
type: MusicGroup
genre: j-rap
genre: j-r&b
popularity: 9
followers: 246
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x122a7ca7938936576f9f612c813b30511c5d43514135bcbc469db3a1862f452a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f5a32d6d-4069-4c7c-b59d-2f2a4c6ed3e3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f5a32d6d-4069-4c7c-b59d-2f2a4c6ed3e3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f5a32d6d-4069-4c7c-b59d-2f2a4c6ed3e3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122a7ca7938936576f9f612c813b30511c5d43514135bcbc469db3a1862f452a. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5a32d6d-4069-4c7c-b59d-2f2a4c6ed3e3.json and https://artists.proofprofile.net/proofs/artist/f5a32d6d-4069-4c7c-b59d-2f2a4c6ed3e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
album: REBUILD
  type: MusicAlbum
  date published: 2022-05-30
album: DONPACHI
  type: MusicAlbum
  date published: 2022-05-30
album: DONPACHI
  type: MusicAlbum
  date published: 2022-05-30
album: REBUILD
  type: MusicAlbum
  date published: 2022-05-30
album: ASSASSIN
  type: MusicAlbum
  date published: 2022-10-23
album: ASSASSIN
  type: MusicAlbum
  date published: 2022-10-23
album: PUSSY (feat. Captain Noah)
  type: MusicAlbum
  date published: 2023-01-11
album: PUSSY (feat. Captain Noah)
  type: MusicAlbum
  date published: 2023-01-11
album: TRAIN
  type: MusicAlbum
  date published: 2023-02-01
album: CHEDDAR (feat. 136youngboss)
  type: MusicAlbum
  date published: 2023-05-11
album: CHEDDAR (feat. 136youngboss)
  type: MusicAlbum
  date published: 2023-05-11
album: SHAVER (feat. Captain Noah)
  type: MusicAlbum
  date published: 2023-06-08
album: SHAVER (feat. Captain Noah)
  type: MusicAlbum
  date published: 2023-06-08
  track: SHAVER (feat. Captain Noah)
    type: MusicRecording
    duration: PT2M20S
    duration ms: 140970
    explicit: true
    by artist: kousei
    in album: SHAVER (feat. Captain Noah)
      type: MusicAlbum
      date published: 2023-06-08
    genre: j-rap
    genre: j-r&b
    isrc code: TCJPW2325261
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T22:48:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x96b6b89021be529bc3207d20723c9510bb31b69522827df2ea744d923384eba0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPW2325261
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:43:49Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b6b89021be529bc3207d20723c9510bb31b69522827df2ea744d923384eba0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCJPW2325261.
      date published: 2026-07-05T01:43:49Z
    audio: SHAVER (feat. Captain Noah)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.005
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.866
      additional property: Energy
        type: PropertyValue
        value: 0.817
      additional property: Speechiness
        type: PropertyValue
        value: 0.059
      additional property: Acousticness
        type: PropertyValue
        value: 0.116
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.125
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.336
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.724
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Clumsy Man
  type: MusicAlbum
  date published: 2023-12-29
album: Clumsy Man
  type: MusicAlbum
  date published: 2023-12-29
album: ASOBO
  type: MusicAlbum
  date published: 2024-03-22
album: ASOBO
  type: MusicAlbum
  date published: 2024-03-22
album: Are you KING?
  type: MusicAlbum
  date published: 2024-03-30
album: White shoes
  type: MusicAlbum
  date published: 2024-05-12
album: White shoes
  type: MusicAlbum
  date published: 2024-05-12
album: NOWHERE
  type: MusicAlbum
  date published: 2024-06-07
  track: ASOBO (feat. Captain Noah)
    type: MusicRecording
    duration: PT2M41S
    duration ms: 161142
    explicit: true
    by artist: kousei
    in album: NOWHERE
      type: MusicAlbum
      date published: 2024-06-07
    genre: j-rap
    genre: j-r&b
    isrc code: TCJPA2468065
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: ASOBO (feat. Captain Noah)
album: BAKUCHI
album: One time (feat. Draco Gana)

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-16T22:15:02+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xacd23e577dfb5372ee8ba695628f963d5fa05b7195bfe5f52396963a332140fd

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958335

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958335

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2468065

OTSTimestamp
type: PropertyValue
value: 2026-07-16T22:37:47Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd23e577dfb5372ee8ba695628f963d5fa05b7195bfe5f52396963a332140fd. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCJPA2468065.
date published: 2026-07-16T22:37:47Z

ASOBO (feat. Captain Noah)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 101.987
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.907
additional property: Energy
  type: PropertyValue
  value: 0.794
additional property: Speechiness
  type: PropertyValue
  value: 0.114
additional property: Acousticness
  type: PropertyValue
  value: 0.041
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.093
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.374
additional property: Loudness (dB)
  type: PropertyValue
  value: -4.874
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

NOWHERE
type: MusicAlbum
date published: 2024-06-07

BAKUCHI
type: MusicAlbum
date published: 2024-07-02

BAKUCHI
type: MusicAlbum
date published: 2024-07-02

One time (feat. Draco Gana)
type: MusicAlbum
date published: 2025-10-28

One time (feat. Draco Gana)
type: MusicAlbum
date published: 2025-10-28