Kareki Kashiwagi
type: MusicGroup
genre: vocaloid
popularity: 15
followers: 1814
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x11d9baad93f885a74c6c5ebcb2dae3255547feea301910b91207bc6706b6dce3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/776b8d97-280f-43f7-99c8-2a79dcab2a72.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/776b8d97-280f-43f7-99c8-2a79dcab2a72.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/776b8d97-280f-43f7-99c8-2a79dcab2a72
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x11d9baad93f885a74c6c5ebcb2dae3255547feea301910b91207bc6706b6dce3","name":"Kareki Kashiwagi","registered_at":"2026-06-14T16:59:08Z","symbol":"NIM0517613","token_address":"0xa4ca895436cbbed6540a691b14076e32a2d241db","type":"artist","uuid":"776b8d97-280f-43f7-99c8-2a79dcab2a72"}
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 0x11d9baad93f885a74c6c5ebcb2dae3255547feea301910b91207bc6706b6dce3. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/776b8d97-280f-43f7-99c8-2a79dcab2a72.json and https://artists.proofprofile.net/proofs/artist/776b8d97-280f-43f7-99c8-2a79dcab2a72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0x11d9baad93f885a74c6c5ebcb2dae3255547feea301910b91207bc6706b6dce3","name":"Kareki Kashiwagi","registered_at":"2026-06-14T16:59:08Z","symbol":"NIM0517613","token_address":"0xa4ca895436cbbed6540a691b14076e32a2d241db","type":"artist","uuid":"776b8d97-280f-43f7-99c8-2a79dcab2a72"}
album: Papagena
  type: MusicAlbum
  date published: 2022-08-12
album: Hetero
  type: MusicAlbum
  date published: 2022-11-08
  track: Hetero
    type: MusicRecording
    duration: PT2M5S
    duration ms: 125940
    explicit: false
    by artist: Kareki Kashiwagi
    in album: Hetero
      type: MusicAlbum
      date published: 2022-11-08
    genre: vocaloid
    isrc code: TCJPT2260072
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T01:43:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd7760487a9823a8c35269e9272363a844fd1200a11b8ad538b35ee733d1978b5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPT2260072
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0xd7760487a9823a8c35269e9272363a844fd1200a11b8ad538b35ee733d1978b5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCJPT2260072.
      date published: 2026-07-04T10:04:33Z
    audio: Hetero
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.996
      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: 0.623
      additional property: Energy
        type: PropertyValue
        value: 0.814
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.153
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.241
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.914
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.378
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ikayaki-Wristed Girl
  type: MusicAlbum
  date published: 2023-03-25
album: Yaba-Ichigo
  type: MusicAlbum
  date published: 2023-09-02
album: Parabolas (feat. HATSUNE MIKU)
  type: MusicAlbum
  date published: 2024-01-17
album: MITEKURE
  type: MusicAlbum
  date published: 2024-01-19
  track: MITEKURE
    type: MusicRecording
    duration: PT2M13S
    duration ms: 133846
    explicit: false
    by artist: Kareki Kashiwagi
    in album: MITEKURE
      type: MusicAlbum
      date published: 2024-01-19
    genre: vocaloid
    isrc code: TCJPY2483992
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T12:40:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc6a25f870d865265938e6fe7238cecd1d48b5375130b51b4225f485fac41d740
    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/TCJPY2483992
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a25f870d865265938e6fe7238cecd1d48b5375130b51b4225f485fac41d740. 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/TCJPY2483992.
      date published: 2026-07-05T01:12:41Z
    audio: MITEKURE
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.499
      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
        type: PropertyValue
        value: 0.54
      additional property: Energy
        type: PropertyValue
        value: 0.919
      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: Let me hear your ASMR at my funeral
album: Akai Hanabi (feat. Chis-A)
album: Recipe
album: Raishu Wa Umi Ni (feat. Chis-A)
album: Kareki's Recipe
album: Raincoat (feat. Ui)
album: Missing! (feat. KASANE TETO & Chis-A)

Speechiness
type: PropertyValue
value: 0.052

Acousticness
type: PropertyValue
value: 0

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.05

Valence (Positivity)
type: PropertyValue
value: 0.952

Loudness (dB)
type: PropertyValue
value: -6.038

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Major

Let me hear your ASMR at my funeral
type: MusicAlbum
date published: 2024-06-09

Akai Hanabi (feat. Chis-A)
type: MusicAlbum
date published: 2024-06-15

Recipe
type: MusicAlbum
date published: 2024-07-12

Raishu Wa Umi Ni (feat. Chis-A)
type: MusicAlbum
date published: 2025-02-27

Kareki's Recipe
type: MusicAlbum
date published: 2025-02-28

Raincoat (feat. Ui)
type: MusicAlbum
date published: 2025-07-25

Missing! (feat. KASANE TETO & Chis-A)
type: MusicAlbum
date published: 2025-08-26
track: Missing! (feat. KASANE TETO & Chis-A)
  type: MusicRecording
  duration: PT3M16S
  duration ms: 196000
  explicit: false
  by artist: Kareki Kashiwagi
  in album: Missing! (feat. KASANE TETO & Chis-A)
    type: MusicAlbum
    date published: 2025-08-26
  genre: vocaloid
  isrc code: TCJPL2548439
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T19:19:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9ac4524b3c9742895748e3d3977c4a259aad9ac37dc2f60a7769cba79304a707
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958194
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958194
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPL2548439
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T22:22:16Z
  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 0x9ac4524b3c9742895748e3d3977c4a259aad9ac37dc2f60a7769cba79304a707. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:22:16Z), 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/TCJPL2548439.
    date published: 2026-07-15T22:22:16Z
  audio: Missing! (feat. KASANE TETO & Chis-A)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 89.995
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.706
    additional property: Energy
      type: PropertyValue
      value: 0.609
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.125
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.088
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.929
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.735
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major