KAGEN
type: MusicGroup
description: was a after Kengen and before Tokuji. This period spanned the years from August 1303 through December 1306.Nussbaum, Louis-Frédéric. (2005). "Kagen" in ; n.b., Louis-Frédéric is pseudonym of Louis-
popularity: 3
followers: 241
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfbf0284fced19fd93af9db45c0cfbee1d8ba2ab4cd9e014f484bd07aafdf65e0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30192d40-d59a-41db-b68d-ede9e4b86c4a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30192d40-d59a-41db-b68d-ede9e4b86c4a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/30192d40-d59a-41db-b68d-ede9e4b86c4a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
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 0xfbf0284fced19fd93af9db45c0cfbee1d8ba2ab4cd9e014f484bd07aafdf65e0. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30192d40-d59a-41db-b68d-ede9e4b86c4a.json and https://artists.proofprofile.net/proofs/artist/30192d40-d59a-41db-b68d-ede9e4b86c4a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:04:35Z
album: Intertwined
  type: MusicAlbum
  date published: 2016-12-25
album: Shine
  type: MusicAlbum
  date published: 2017-07-12
album: Shine
  type: MusicAlbum
  date published: 2017-07-17
album: Fallen
  type: MusicAlbum
  date published: 2018-03-06
album: Fallen
  type: MusicAlbum
  date published: 2018-03-06
album: Sentiment
  type: MusicAlbum
  date published: 2019-03-07
album: Ikigai
  type: MusicAlbum
  date published: 2019-09-23
album: Ikigai
  type: MusicAlbum
  date published: 2019-09-23
album: Together Apart
  type: MusicAlbum
  date published: 2020-04-28
album: Memoirs
  type: MusicAlbum
  date published: 2020-05-16
album: Semper Fi
  type: MusicAlbum
  date published: 2020-06-05
  track: Semper Fi
    type: MusicRecording
    duration: PT3M7S
    duration ms: 187600
    explicit: false
    by artist: KAGEN
    in album: Semper Fi
      type: MusicAlbum
      date published: 2020-06-05
    isrc code: QZHN52095005
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T21:06:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6f8b86e6cf1e61a30091c91620ac7c138dc8d2885bf9a9b94bfa549642062d77
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN52095005
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0x6f8b86e6cf1e61a30091c91620ac7c138dc8d2885bf9a9b94bfa549642062d77. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZHN52095005.
      date published: 2026-07-06T01:26:17Z
    audio: Semper Fi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.003
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.7
      additional property: Energy
        type: PropertyValue
        value: 0.876
      additional property: Speechiness
        type: PropertyValue
        value: 0.349
      additional property: Acousticness
        type: PropertyValue
        value: 0.058
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.359
      additional property: Liveness
        type: PropertyValue
        value: 0.247
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.389
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.883
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Follow Me
  type: MusicAlbum
  date published: 2021-02-06
album: Sublime
  type: MusicAlbum
  date published: 2022-01-14
album: Lost
  type: MusicAlbum
  date published: 2023-04-06
album: Distant Shores
  type: MusicAlbum
  date published: 2023-12-21