ひとなつおもい
type: MusicGroup
popularity: 5
followers: 390
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x346edfb0d1aea159c44f7fac137787fa2a5e6de76c9590c0406f3b7aeadb57b0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4bb7b00-9928-4528-bbb4-f122bd90a55c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d4bb7b00-9928-4528-bbb4-f122bd90a55c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d4bb7b00-9928-4528-bbb4-f122bd90a55c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T03:45:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x346edfb0d1aea159c44f7fac137787fa2a5e6de76c9590c0406f3b7aeadb57b0","name":"ひとなつおもい","registered_at":"2026-06-21T02:11:13Z","symbol":"NIM1786607","token_address":"0x593ee85c8a52812f54e2abdda6af2a4f82b3ba79","type":"artist","uuid":"d4bb7b00-9928-4528-bbb4-f122bd90a55c"}
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 0x346edfb0d1aea159c44f7fac137787fa2a5e6de76c9590c0406f3b7aeadb57b0. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4bb7b00-9928-4528-bbb4-f122bd90a55c.json and https://artists.proofprofile.net/proofs/artist/d4bb7b00-9928-4528-bbb4-f122bd90a55c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T03:45:44Z
  text: {"copyright_id":"0x346edfb0d1aea159c44f7fac137787fa2a5e6de76c9590c0406f3b7aeadb57b0","name":"ひとなつおもい","registered_at":"2026-06-21T02:11:13Z","symbol":"NIM1786607","token_address":"0x593ee85c8a52812f54e2abdda6af2a4f82b3ba79","type":"artist","uuid":"d4bb7b00-9928-4528-bbb4-f122bd90a55c"}
album: パジャマパーティー
  type: MusicAlbum
  date published: 2022-06-30
album: Unplaned Summer
  type: MusicAlbum
  date published: 2022-08-31
album: 冷凍夏眠
  type: MusicAlbum
  date published: 2023-09-30
album: 1-7-2
  type: MusicAlbum
  date published: 2024-04-28
  track: ポメラニアンは元気 - Full ver.
    type: MusicRecording
    duration: PT3M13S
    duration ms: 193000
    explicit: true
    by artist: ひとなつおもい
    in album: 1-7-2
      type: MusicAlbum
      date published: 2024-04-28
    isrc code: TCJPA2438153
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T22:28:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x26d70f308f643c0eb8fc4fe2fb1c3654d66ef9e2d60bf8f4aca75d90473ee1c7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958335
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958335
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2438153
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T22:37:47Z
    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 0x26d70f308f643c0eb8fc4fe2fb1c3654d66ef9e2d60bf8f4aca75d90473ee1c7. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCJPA2438153.
      date published: 2026-07-16T22:37:47Z
    audio: ポメラニアンは元気 - Full ver.
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.995
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.85
      additional property: Energy
        type: PropertyValue
        value: 0.477
      additional property: Speechiness
        type: PropertyValue
        value: 0.272
      additional property: Acousticness
        type: PropertyValue
        value: 0.32
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.012
      additional property: Liveness
        type: PropertyValue
        value: 0.134
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.142
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.027
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: TALK ABOUT ME
  type: MusicAlbum
  date published: 2025-06-30
album: アストロクラフト
  type: MusicAlbum
  date published: 2025-08-02
  track: アストロクラフト
    type: MusicRecording
    duration: PT2M25S
    duration ms: 145804
    explicit: false
    by artist: ひとなつおもい
    in album: アストロクラフト
      type: MusicAlbum
      date published: 2025-08-02
    isrc code: JP92A2507751
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T02:34:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6755f3c3c3127f3bac2e79806b45f12d9b91ff7f03b384dd094a126fa8ec204c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92A2507751
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x6755f3c3c3127f3bac2e79806b45f12d9b91ff7f03b384dd094a126fa8ec204c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JP92A2507751.
      date published: 2026-07-05T10:01:46Z
    audio: アストロクラフト
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 160.072
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.563
      additional property: Energy
        type: PropertyValue
        value: 0.956
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Acousticness
type: PropertyValue
value: 0.003

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.137

Valence (Positivity)
type: PropertyValue
value: 0.553

Loudness (dB)
type: PropertyValue
value: -3.269

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major