東京クラリネット・アンサンブル
type: MusicGroup
popularity: 7
followers: 251
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e014a062480dad52a8b893901d7aa3ba29754a8789282d6220d59b447bda0b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a00528f0-99f8-4ba3-a5bc-567cfe65f05e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a00528f0-99f8-4ba3-a5bc-567cfe65f05e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a00528f0-99f8-4ba3-a5bc-567cfe65f05e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7e014a062480dad52a8b893901d7aa3ba29754a8789282d6220d59b447bda0b6","name":"東京クラリネット・アンサンブル","registered_at":"2026-06-20T05:22:45Z","symbol":"NIM1524885","token_address":"0x7389206b5163fc13f5e15bf593419792e746cc41","type":"artist","uuid":"a00528f0-99f8-4ba3-a5bc-567cfe65f05e"}
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 0x7e014a062480dad52a8b893901d7aa3ba29754a8789282d6220d59b447bda0b6. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a00528f0-99f8-4ba3-a5bc-567cfe65f05e.json and https://artists.proofprofile.net/proofs/artist/a00528f0-99f8-4ba3-a5bc-567cfe65f05e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x7e014a062480dad52a8b893901d7aa3ba29754a8789282d6220d59b447bda0b6","name":"東京クラリネット・アンサンブル","registered_at":"2026-06-20T05:22:45Z","symbol":"NIM1524885","token_address":"0x7389206b5163fc13f5e15bf593419792e746cc41","type":"artist","uuid":"a00528f0-99f8-4ba3-a5bc-567cfe65f05e"}
album: クラリネット・アンサンブル名曲集
  type: MusicAlbum
  date published: 1984
  track: 《アイネ・クライネ・ナハトムジーク》: 第1楽章：Allegro
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237946
    explicit: false
    by artist: 東京クラリネット・アンサンブル
    in album: クラリネット・アンサンブル名曲集
      type: MusicAlbum
      date published: 1984
    isrc code: JPPO08460110
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T23:56:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc37b74e16e1e950dfdc75f8fc9d42e943886f9b9b90305a07d2d72ed3c2642b2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO08460110
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0xc37b74e16e1e950dfdc75f8fc9d42e943886f9b9b90305a07d2d72ed3c2642b2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPPO08460110.
      date published: 2026-07-04T11:19:20Z
    audio: 《アイネ・クライネ・ナハトムジーク》: 第1楽章：Allegro
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 143.191
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.648
      additional property: Energy
        type: PropertyValue
        value: 0.23
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.98
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.855
      additional property: Liveness
        type: PropertyValue
        value: 0.077
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.636
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.944
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: クラリネット・ポルカ
    type: MusicRecording
    duration: PT2M5S
    duration ms: 125866
    explicit: false
    by artist: 東京クラリネット・アンサンブル
    in album: クラリネット・アンサンブル名曲集
      type: MusicAlbum
      date published: 1984
    isrc code: JPPO08460190
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T05:44:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x28f6e46259703016c0a53979010bd70a8bcf6cbd3147f8dc6bc1dca18dbff104
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958508
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958508
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO08460190
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T06:27:01Z
    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 0x28f6e46259703016c0a53979010bd70a8bcf6cbd3147f8dc6bc1dca18dbff104. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/JPPO08460190.
      date published: 2026-07-18T06:27:01Z
    audio: クラリネット・ポルカ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.668
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.562
      additional property: Energy
        type: PropertyValue
        value: 0.375
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.988
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.939
      additional property: Liveness
        type: PropertyValue
        value: 0.07
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.851
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.092
      additional property: Key Name
      additional property: Mode Name

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Major