KSK
type: MusicGroup
genre: j-rap
popularity: 13
followers: 206
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ad0975cb01c5b6928f87ffafb0519c57239ec5087aaecf5182cfc5966b49897
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953768
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953768
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c214a766-e9a7-46fa-b7a5-a9debce86043.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c214a766-e9a7-46fa-b7a5-a9debce86043.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c214a766-e9a7-46fa-b7a5-a9debce86043
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:30:06Z
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 0x9ad0975cb01c5b6928f87ffafb0519c57239ec5087aaecf5182cfc5966b49897. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c214a766-e9a7-46fa-b7a5-a9debce86043.json and https://artists.proofprofile.net/proofs/artist/c214a766-e9a7-46fa-b7a5-a9debce86043.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
album: Kataka Forme
  type: MusicAlbum
  date published: 2019-12-06
album: Jack Sparrow
  type: MusicAlbum
  date published: 2020-12-11
album: 22' summer
  type: MusicAlbum
  date published: 2022-08-06
album: 22' summer
  type: MusicAlbum
  date published: 2022-08-06
album: Honest
  type: MusicAlbum
  date published: 2022-10-16
album: Honest
  type: MusicAlbum
  date published: 2022-10-16
album: Planet City
  type: MusicAlbum
  date published: 2023-05-26
album: Planet City
  type: MusicAlbum
  date published: 2023-05-26
album: 星期天不休息
  type: MusicAlbum
  date published: 2023-07-07
album: Revolution EP
  type: MusicAlbum
  date published: 2023-08-19
album: Kyoto
  type: MusicAlbum
  date published: 2023-12-16
album: Kyoto
  type: MusicAlbum
  date published: 2023-12-16
album: In My Zone
  type: MusicAlbum
  date published: 2024-01-15
album: In My Zone
  type: MusicAlbum
  date published: 2024-01-15
album: KURAMA
  type: MusicAlbum
  date published: 2024-06-13
  track: KURAMA
    type: MusicRecording
    duration: PT2M11S
    duration ms: 131259
    explicit: true
    by artist: KSK
    in album: KURAMA
      type: MusicAlbum
      date published: 2024-06-13
    genre: j-rap
    isrc code: TCJPA2474964
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T09:40:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x51cdadff32fbac0b99ba84b6b1c2c9735a33c68d14a09be52930869c67ef82e2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2474964
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T09:45:25Z
    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 0x51cdadff32fbac0b99ba84b6b1c2c9735a33c68d14a09be52930869c67ef82e2. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/TCJPA2474964.
      date published: 2026-07-20T09:45:25Z
    audio: KURAMA
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 142.919
      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: 0.745
      additional property: Energy
        type: PropertyValue
        value: 0.941
      additional property: Speechiness
        type: PropertyValue
        value: 0.354
      additional property: Acousticness
        type: PropertyValue
        value: 0.228
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.045
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.724
      additional property: Loudness (dB)
        type: PropertyValue
        value: -0.971
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: KURAMA
  type: MusicAlbum
  date published: 2024-06-13
album: Band-Aid
  type: MusicAlbum
  date published: 2024-09-28
album: Band-Aid
  type: MusicAlbum
  date published: 2024-09-28
  track: Band-Aid (feat. ILL Fine & 京 kei)
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237124
    explicit: true
    by artist: KSK
    in album: Band-Aid
      type: MusicAlbum
      date published: 2024-09-28
    genre: j-rap
    isrc code: TCJPB2496505
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T12:30:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe9bd8d1be0772a42c82280f98da385c430bfecf868181432a6e263c10d46067b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Band-Aid (feat. ILL Fine & 京 kei)
album: R2E4
album: Backyard
album: Noise

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2496505

OTSTimestamp
type: PropertyValue
value: 2026-07-05T19:27:56Z

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 0xe9bd8d1be0772a42c82280f98da385c430bfecf868181432a6e263c10d46067b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCJPB2496505.
date published: 2026-07-05T19:27:56Z

Band-Aid (feat. ILL Fine & 京 kei)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 139.933
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: 0.624
additional property: Energy
  type: PropertyValue
  value: 0.822
additional property: Speechiness
  type: PropertyValue
  value: 0.108
additional property: Acousticness
  type: PropertyValue
  value: 0.069
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.311
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.457
additional property: Loudness (dB)
  type: PropertyValue
  value: -2.858
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Major

R2E4
type: MusicAlbum
date published: 2024-12-26

R2E4
type: MusicAlbum
date published: 2024-12-26

Backyard
type: MusicAlbum
date published: 2025-05-30

Backyard
type: MusicAlbum
date published: 2025-05-30

Noise
type: MusicAlbum
date published: 2025-10-29

Noise
type: MusicAlbum
date published: 2025-10-29