Yosuke Utsumi
type: MusicGroup
genre: acid jazz
genre: jazz rap
genre: lo-fi beats
genre: trip hop
popularity: 3
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x263bb78069543f430231074ffa8b102b271f8ebced965935074976e0b8466125
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954130
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954130
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7cd7d6bb-0e81-402a-b8df-87b44094a4c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7cd7d6bb-0e81-402a-b8df-87b44094a4c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7cd7d6bb-0e81-402a-b8df-87b44094a4c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:07:14Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x263bb78069543f430231074ffa8b102b271f8ebced965935074976e0b8466125","name":"Yosuke Utsumi","registered_at":"2026-06-17T09:06:18Z","symbol":"NIM1347372","token_address":"0x1e7149bc4832f079aad68e408472b314e3c2673d","type":"artist","uuid":"7cd7d6bb-0e81-402a-b8df-87b44094a4c7"}
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263bb78069543f430231074ffa8b102b271f8ebced965935074976e0b8466125. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cd7d6bb-0e81-402a-b8df-87b44094a4c7.json and https://artists.proofprofile.net/proofs/artist/7cd7d6bb-0e81-402a-b8df-87b44094a4c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:07:14Z
  text: {"copyright_id":"0x263bb78069543f430231074ffa8b102b271f8ebced965935074976e0b8466125","name":"Yosuke Utsumi","registered_at":"2026-06-17T09:06:18Z","symbol":"NIM1347372","token_address":"0x1e7149bc4832f079aad68e408472b314e3c2673d","type":"artist","uuid":"7cd7d6bb-0e81-402a-b8df-87b44094a4c7"}
album: Sensitive
  type: MusicAlbum
  date published: 2021-04-23
album: Cinematic
  type: MusicAlbum
  date published: 2021-12-28
album: Cinematic
  type: MusicAlbum
  date published: 2021-12-28
album: Neverland
  type: MusicAlbum
  date published: 2022-04-30
album: Neverland
  type: MusicAlbum
  date published: 2022-04-30
album: Curious
  type: MusicAlbum
  date published: 2023-03-28
album: Curious
  type: MusicAlbum
  date published: 2023-03-28
album: Stray Sheep
  type: MusicAlbum
  date published: 2025-03-31
album: Stray Sheep
  type: MusicAlbum
  date published: 2025-03-31
  track: Sugar
    type: MusicRecording
    duration: PT2M11S
    duration ms: 131158
    explicit: false
    by artist: Yosuke Utsumi
    in album: Stray Sheep
      type: MusicAlbum
      date published: 2025-03-31
    genre: acid jazz
    genre: jazz rap
    genre: lo-fi beats
    genre: trip hop
    isrc code: TCJPD2535778
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T13:13:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd9b63bbe4c3ebb65b7c6782ba4690016d580ad1c9168aa2ef7e5110cdc7338c9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPD2535778
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0xd9b63bbe4c3ebb65b7c6782ba4690016d580ad1c9168aa2ef7e5110cdc7338c9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPD2535778.
      date published: 2026-07-03T19:59:51Z
    audio: Sugar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 177.054
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.726
      additional property: Energy
        type: PropertyValue
        value: 0.588
      additional property: Speechiness
        type: PropertyValue
        value: 0.069
      additional property: Acousticness
        type: PropertyValue
        value: 0.087
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.861
      additional property: Liveness
        type: PropertyValue
        value: 0.058
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.626
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.492
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Cube
    type: MusicRecording
    duration: PT2M42S
    duration ms: 162199
    explicit: false
    by artist: Yosuke Utsumi
    in album: Stray Sheep
      type: MusicAlbum
      date published: 2025-03-31
    genre: acid jazz
    genre: jazz rap
    genre: lo-fi beats
    genre: trip hop
    isrc code: TCJPD2535782
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T00:41:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8008a1c3394968827dedcb8cdef1a2a01ad15bd4f0fa11d0348f9ee4e47e46e4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPD2535782
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T00:59:09Z
    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 0x8008a1c3394968827dedcb8cdef1a2a01ad15bd4f0fa11d0348f9ee4e47e46e4. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/TCJPD2535782.
      date published: 2026-07-18T00:59:09Z
    audio: Cube

Cube
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 174.547
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.616
additional property: Energy
  type: PropertyValue
  value: 0.64
additional property: Speechiness
  type: PropertyValue
  value: 0.082
additional property: Acousticness
  type: PropertyValue
  value: 0.066
additional property: Instrumentalness
  type: PropertyValue
  value: 0.96
additional property: Liveness
  type: PropertyValue
  value: 0.093
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.473
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.113
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major