古泉一樹 (CV.小野大輔)
type: MusicGroup
popularity: 11
followers: 757
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x95da8bc21b5faf00243ef393375493865f5cd1f57474bb883a43e2b342be3349
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953714
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953714
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/81196f4b-7c4b-4860-be85-af2750b9dfb9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/81196f4b-7c4b-4860-be85-af2750b9dfb9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/81196f4b-7c4b-4860-be85-af2750b9dfb9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T00:43:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x95da8bc21b5faf00243ef393375493865f5cd1f57474bb883a43e2b342be3349","name":"古泉一樹 (CV.小野大輔)","registered_at":"2026-06-14T18:01:41Z","symbol":"NIM0532504","token_address":"0x486ebde41f41935cc802e1e349e30cb6b68d3c4d","type":"artist","uuid":"81196f4b-7c4b-4860-be85-af2750b9dfb9"}
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 0x95da8bc21b5faf00243ef393375493865f5cd1f57474bb883a43e2b342be3349. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81196f4b-7c4b-4860-be85-af2750b9dfb9.json and https://artists.proofprofile.net/proofs/artist/81196f4b-7c4b-4860-be85-af2750b9dfb9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T00:43:59Z
  text: {"copyright_id":"0x95da8bc21b5faf00243ef393375493865f5cd1f57474bb883a43e2b342be3349","name":"古泉一樹 (CV.小野大輔)","registered_at":"2026-06-14T18:01:41Z","symbol":"NIM0532504","token_address":"0x486ebde41f41935cc802e1e349e30cb6b68d3c4d","type":"artist","uuid":"81196f4b-7c4b-4860-be85-af2750b9dfb9"}
album: 涼宮ハルヒの憂鬱 キャラクターソング (Vol.8 古泉一樹)
  type: MusicAlbum
  date published: 2007-02-21
  track: ハレ晴レユカイ - Ver.古泉一樹
    type: MusicRecording
    duration: PT5M8S
    duration ms: 308333
    explicit: false
    by artist: 古泉一樹 (CV.小野大輔)
    in album: 涼宮ハルヒの憂鬱 キャラクターソング (Vol.8 古泉一樹)
      type: MusicAlbum
      date published: 2007-02-21
    isrc code: JPI100700083
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T13:31:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe9aca975c4c37739a4852d37585d44c5c1a45b79207484b3b1f1196934c09ba3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI100700083
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xe9aca975c4c37739a4852d37585d44c5c1a45b79207484b3b1f1196934c09ba3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPI100700083.
      date published: 2026-07-05T19:27:56Z
    audio: ハレ晴レユカイ - Ver.古泉一樹
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.02
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.726
      additional property: Energy
        type: PropertyValue
        value: 0.763
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.018
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.066
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.545
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.642
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 涼宮ハルヒの憂鬱 新キャラクターソング (Vol.4 古泉一樹)
  type: MusicAlbum
  date published: 2009-11-18
  track: 「つまらない話ですよ」と僕は言う
    type: MusicRecording
    duration: PT4M25S
    duration ms: 265266
    explicit: false
    by artist: 古泉一樹 (CV.小野大輔)
    in album: 涼宮ハルヒの憂鬱 新キャラクターソング (Vol.4 古泉一樹)
      type: MusicAlbum
      date published: 2009-11-18
    isrc code: JPI100902670
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T22:25:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x08bb9bd985215c9359b2d0a94bd3b6a9cab38eb794b78ee2f2c809bc8ee24e05
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958621
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958621
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI100902670
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T22:59:44Z
    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 0x08bb9bd985215c9359b2d0a94bd3b6a9cab38eb794b78ee2f2c809bc8ee24e05. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/JPI100902670.
      date published: 2026-07-18T22:59:44Z
    audio: 「つまらない話ですよ」と僕は言う
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.014
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.649
      additional property: Energy
        type: PropertyValue
        value: 0.823
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.316
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.635
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Loudness (dB)
type: PropertyValue
value: -5.177

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Minor