Hirosi Kano
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 7
followers: 201
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ed3482ab66dbf7ffa28c38f777071877251a03589c35c68656844a30292b3b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4f6fb8f1-a460-4edc-8eb3-0b25ce375518.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4f6fb8f1-a460-4edc-8eb3-0b25ce375518.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4f6fb8f1-a460-4edc-8eb3-0b25ce375518
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9ed3482ab66dbf7ffa28c38f777071877251a03589c35c68656844a30292b3b1","name":"Hirosi Kano","registered_at":"2026-06-16T17:14:57Z","symbol":"NIM1120421","token_address":"0x4cc52a04bf852c1349097be343eab9d9f37a1e39","type":"artist","uuid":"4f6fb8f1-a460-4edc-8eb3-0b25ce375518"}
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 0x9ed3482ab66dbf7ffa28c38f777071877251a03589c35c68656844a30292b3b1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f6fb8f1-a460-4edc-8eb3-0b25ce375518.json and https://artists.proofprofile.net/proofs/artist/4f6fb8f1-a460-4edc-8eb3-0b25ce375518.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x9ed3482ab66dbf7ffa28c38f777071877251a03589c35c68656844a30292b3b1","name":"Hirosi Kano","registered_at":"2026-06-16T17:14:57Z","symbol":"NIM1120421","token_address":"0x4cc52a04bf852c1349097be343eab9d9f37a1e39","type":"artist","uuid":"4f6fb8f1-a460-4edc-8eb3-0b25ce375518"}
album: プラットホームの人々
  type: MusicAlbum
  date published: 2019-06-19
album: 荒木とよひさ作品集
  type: MusicAlbum
  date published: 2019-07-17
  track: 心凍らせて
    type: MusicRecording
    duration: PT4M12S
    duration ms: 252773
    explicit: false
    by artist: Hirosi Kano
    in album: 荒木とよひさ作品集
      type: MusicAlbum
      date published: 2019-07-17
    genre: enka
    genre: kayokyoku
    isrc code: JPTE01904880
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T16:03:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbd568fb6f94ce5b1a1987d4bb18d9e5156aa073573a54a5b4dbf081d056fc0ac
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958300
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958300
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE01904880
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T16:14:30Z
    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 0xbd568fb6f94ce5b1a1987d4bb18d9e5156aa073573a54a5b4dbf081d056fc0ac. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPTE01904880.
      date published: 2026-07-16T16:14:30Z
    audio: 心凍らせて
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.694
      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: 0.517
      additional property: Energy
        type: PropertyValue
        value: 0.645
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.407
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.346
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.41
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.018
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: ふたたびのめぐり逢い
  type: MusicAlbum
  date published: 2020-09-16
album: あなたへのセレナーデ
  type: MusicAlbum
  date published: 2024-06-19
album: 最後のサムライ
  type: MusicAlbum
  date published: 2025-05-21
  track: 最後のサムライ
    type: MusicRecording
    duration: PT4M2S
    duration ms: 242333
    explicit: false
    by artist: Hirosi Kano
    in album: 最後のサムライ
      type: MusicAlbum
      date published: 2025-05-21
    genre: enka
    genre: kayokyoku
    isrc code: JPTE02500790
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T08:31:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbcb1f13cfd530233e8a511575f4abeee71513bb5589ddaccb651a1a8ebac8150
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958853
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958853
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE02500790
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T11:34:13Z
    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 0xbcb1f13cfd530233e8a511575f4abeee71513bb5589ddaccb651a1a8ebac8150. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:34:13Z), 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/JPTE02500790.
      date published: 2026-07-20T11:34:13Z
    audio: 最後のサムライ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.199
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.45
      additional property: Energy
        type: PropertyValue
        value: 0.532
      additional property: Speechiness
      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

Speechiness
type: PropertyValue
value: 0.032

Acousticness
type: PropertyValue
value: 0.258

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.18

Valence (Positivity)
type: PropertyValue
value: 0.464

Loudness (dB)
type: PropertyValue
value: -5.995

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Minor