Kujira Yumemi
type: MusicGroup
genre: anime
popularity: 12
followers: 127
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x94807fffc02ae54a48119fc5d980a53fae8758c7868c57bcab16fcb854aa1526
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953721
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953721
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8a708a71-62cf-4524-bcc6-b982dc9552e6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8a708a71-62cf-4524-bcc6-b982dc9552e6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8a708a71-62cf-4524-bcc6-b982dc9552e6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T01:12:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x94807fffc02ae54a48119fc5d980a53fae8758c7868c57bcab16fcb854aa1526","name":"Kujira Yumemi","registered_at":"2026-06-14T19:04:38Z","symbol":"NIM0547525","token_address":"0x3bad88485230646d260c1872db3efe65520d8e29","type":"artist","uuid":"8a708a71-62cf-4524-bcc6-b982dc9552e6"}
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 0x94807fffc02ae54a48119fc5d980a53fae8758c7868c57bcab16fcb854aa1526. Chain 2 (Bitcoin): anchored in block 953721 (2026-06-15T01:12:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a708a71-62cf-4524-bcc6-b982dc9552e6.json and https://artists.proofprofile.net/proofs/artist/8a708a71-62cf-4524-bcc6-b982dc9552e6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T01:12:01Z
  text: {"copyright_id":"0x94807fffc02ae54a48119fc5d980a53fae8758c7868c57bcab16fcb854aa1526","name":"Kujira Yumemi","registered_at":"2026-06-14T19:04:38Z","symbol":"NIM0547525","token_address":"0x3bad88485230646d260c1872db3efe65520d8e29","type":"artist","uuid":"8a708a71-62cf-4524-bcc6-b982dc9552e6"}
album: Kubo Won't Let Me Be Invisible Original Soundtrack
  type: MusicAlbum
  date published: 2023-06-07
  track: Bless the Two
    type: MusicRecording
    duration: PT4M6S
    duration ms: 246093
    explicit: false
    by artist: Kujira Yumemi
    in album: Kubo Won't Let Me Be Invisible Original Soundtrack
      type: MusicAlbum
      date published: 2023-06-07
    genre: anime
    isrc code: JPPC02310980
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T03:29:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x74d7f68ad510c859bbb2d6aaa92fd88e1db058c9b373f0684af9f067722e3d7d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958487
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958487
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC02310980
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T03:43:59Z
    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 0x74d7f68ad510c859bbb2d6aaa92fd88e1db058c9b373f0684af9f067722e3d7d. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/JPPC02310980.
      date published: 2026-07-18T03:43:59Z
    audio: Bless the Two
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.035
      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: 0.723
      additional property: Energy
        type: PropertyValue
        value: 0.694
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.429
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.09
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.685
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.921
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Chillin' in Another World with Lv2 Super Cheat Powers Original Soundtrack
  type: MusicAlbum
  date published: 2024-06-17
  track: Love Love Love Song - Piano ver.
    type: MusicRecording
    duration: PT2M34S
    duration ms: 154853
    explicit: false
    by artist: Kujira Yumemi
    in album: Chillin' in Another World with Lv2 Super Cheat Powers Original Soundtrack
      type: MusicAlbum
      date published: 2024-06-17
    genre: anime
    isrc code: JPPC02411254
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T22:29:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcefe6bf7337edcca9ca5c26015d7bd892a5c5436e74f32a51810b08fbaa768d4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC02411254
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0xcefe6bf7337edcca9ca5c26015d7bd892a5c5436e74f32a51810b08fbaa768d4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPPC02411254.
      date published: 2026-07-04T10:04:33Z
    audio: Love Love Love Song - Piano ver.
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 78.734
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.39
      additional property: Energy
        type: PropertyValue
        value: 0.034
      additional property: Speechiness
        type: PropertyValue
        value: 0.046
      additional property: Acousticness
        type: PropertyValue
        value: 0.99
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.935
      additional property: Liveness
        type: PropertyValue
        value: 0.139
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Valence (Positivity)
type: PropertyValue
value: 0.237

Loudness (dB)
type: PropertyValue
value: -24.94

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Major