KAI.ZEN
type: MusicGroup
popularity: 13
followers: 121
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe116c856edb8a018051d225306962f2e886de35d21702fb5da70e52a5d47a902
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953697
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953697
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6bda8a79-0ecc-41ef-8d78-a5fc6fcc6305.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6bda8a79-0ecc-41ef-8d78-a5fc6fcc6305.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6bda8a79-0ecc-41ef-8d78-a5fc6fcc6305
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:49:28Z
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 0xe116c856edb8a018051d225306962f2e886de35d21702fb5da70e52a5d47a902. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6bda8a79-0ecc-41ef-8d78-a5fc6fcc6305.json and https://artists.proofprofile.net/proofs/artist/6bda8a79-0ecc-41ef-8d78-a5fc6fcc6305.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T21:49:28Z
album: dopamine
  type: MusicAlbum
  date published: 2025-03-07
album: see ya when i see ya.
  type: MusicAlbum
  date published: 2025-05-02
album: better now
  type: MusicAlbum
  date published: 2025-06-27
  track: better now
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222750
    explicit: false
    by artist: KAI.ZEN
    in album: better now
      type: MusicAlbum
      date published: 2025-06-27
    isrc code: QM7282554932
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T06:25:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x16d2c2330a3d883864d0e8b847de99d4f7886816255d791c516cafbb1feabe7d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282554932
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 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 0x16d2c2330a3d883864d0e8b847de99d4f7886816255d791c516cafbb1feabe7d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7282554932 — a six-check JSON result.
      date published: 2026-07-06T06:56:49Z
    audio: better now
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 159.665
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.497
      additional property: Energy
        type: PropertyValue
        value: 0.58
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.153
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.378
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.311
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.452
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: cygnus
  type: MusicAlbum
  date published: 2025-08-22
album: havelock
  type: MusicAlbum
  date published: 2025-09-26
  track: havelock
    type: MusicRecording
    duration: PT4M0S
    duration ms: 240335
    explicit: false
    by artist: KAI.ZEN
    in album: havelock
      type: MusicAlbum
      date published: 2025-09-26
    isrc code: QMFME2501652
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T21:35:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x59b686edc978a4e26abcb63113aadd62f5f98c54e9b102adef8c17812c2929f6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958331
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958331
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2501652
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T21:55:37Z
    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 0x59b686edc978a4e26abcb63113aadd62f5f98c54e9b102adef8c17812c2929f6. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2501652 — a six-check JSON result.
      date published: 2026-07-16T21:55:37Z
    audio: havelock
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.949
      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: 0.65
      additional property: Energy
        type: PropertyValue
        value: 0.62
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.178
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Liveness
type: PropertyValue
value: 0.087

Valence (Positivity)
type: PropertyValue
value: 0.293

Loudness (dB)
type: PropertyValue
value: -5.638

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major