ugumugu
type: MusicGroup
genre: shibuya-kei
popularity: 5
followers: 590
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b1409c0d03fa5e0634fca04efd4d201846c398592813e06835d9e16db4d7412
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf18f531-65fb-41c3-8a46-e757270efca9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf18f531-65fb-41c3-8a46-e757270efca9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bf18f531-65fb-41c3-8a46-e757270efca9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
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 0x9b1409c0d03fa5e0634fca04efd4d201846c398592813e06835d9e16db4d7412. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf18f531-65fb-41c3-8a46-e757270efca9.json and https://artists.proofprofile.net/proofs/artist/bf18f531-65fb-41c3-8a46-e757270efca9.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
album: まほうさ☆MUSICBOX
  type: MusicAlbum
  date published: 2018-04-29
album: Mahousa Musicbox
  type: MusicAlbum
  date published: 2018-04-29
album: さかさま☆TOYBOX
  type: MusicAlbum
  date published: 2019-01-29
album: Ginger Cookie Story
  type: MusicAlbum
  date published: 2019-04-15
album: Ugu-tte! Mugu-tte!
  type: MusicAlbum
  date published: 2019-07-25
album: まんぷく☆LUNCHBOX
  type: MusicAlbum
  date published: 2019-10-27
album: Tomodachi Jukebox
  type: MusicAlbum
  date published: 2020-10-25
album: ともだち☆JUKEBOX
  type: MusicAlbum
  date published: 2020-10-25
album: きまぐれ☆TOOLBOX
  type: MusicAlbum
  date published: 2021-10-31
album: Kimagure Toolbox
  type: MusicAlbum
  date published: 2021-10-31
album: おさかなキッチンシンフォニー
  type: MusicAlbum
  date published: 2022-11-25
album: ぱくぱく☆PLANET
  type: MusicAlbum
  date published: 2023-10-29
album: PAKU PAKU PLANET
  type: MusicAlbum
  date published: 2023-10-29
album: はんがくシールだいぼうけん
  type: MusicAlbum
  date published: 2025-03-05
  track: はんがくシールだいぼうけん
    type: MusicRecording
    duration: PT1M58S
    duration ms: 118000
    explicit: false
    by artist: ugumugu
    in album: はんがくシールだいぼうけん
      type: MusicAlbum
      date published: 2025-03-05
    genre: shibuya-kei
    isrc code: JP92J2402267
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T13:11:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9a41b2d0015d61c339e4888530f2a5ed6f22d22a73f56c209ece301a070365b8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959010
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959010
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92J2402267
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T13:22:35Z
    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 0x9a41b2d0015d61c339e4888530f2a5ed6f22d22a73f56c209ece301a070365b8. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/JP92J2402267 — a six-check JSON result.
      date published: 2026-07-21T13:22:35Z
    audio: はんがくシールだいぼうけん
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 78.012
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.601
      additional property: Energy
        type: PropertyValue
        value: 0.834
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.012
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.246
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.896
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.153
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 花から牛乳
  type: MusicAlbum
  date published: 2025-08-27
album: Milk From Flowers
  type: MusicAlbum
  date published: 2025-08-27