ROCKY CHACK
type: MusicGroup
genre: anime
description: Rocky Chack (Japanese: ロッキー・チャック Rokkī Chakku, sometimes stylized as ROCKY CHACK) is a Japanese band founded in 1998 and composed of Taro Yamashita (as "Taro") and Noe Arima (as "noe"). History Ro
popularity: 20
followers: 2614
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSVerificationAPI
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  value: 2026-06-14T19:07:16Z
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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
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  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993a5c512b392dad23fcbdb1404dcc941c8ae36dec904d2b96ae6353a24c5961. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61469ba1-2e5b-4957-864a-ee00816eb42d.json and https://artists.proofprofile.net/proofs/artist/61469ba1-2e5b-4957-864a-ee00816eb42d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T19:07:16Z
  text: {"copyright_id":"0x993a5c512b392dad23fcbdb1404dcc941c8ae36dec904d2b96ae6353a24c5961","name":"ROCKY CHACK","registered_at":"2026-06-14T14:37:51Z","symbol":"NIM0483902","token_address":"0x0d1c41066bd3c3795fe4ae64a683c273c326a775","type":"artist","uuid":"61469ba1-2e5b-4957-864a-ee00816eb42d"}
album: 「ゼーガペイン」エンディングテーマ リトルグッバイ
  type: MusicAlbum
  date published: 2006-05-24
album: 「狼と香辛料」エンディングテーマ リンゴ日和～The Wolf Whistling Song
  type: MusicAlbum
  date published: 2008-02-06
  track: 生意気なぼくら
    type: MusicRecording
    duration: PT3M51S
    duration ms: 231029
    explicit: false
    by artist: ROCKY CHACK
    in album: 「狼と香辛料」エンディングテーマ リンゴ日和～The Wolf Whistling Song
      type: MusicAlbum
      date published: 2008-02-06
    genre: anime
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG750700278
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T09:09:53Z
    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 0x640d5e90f012f94b090ee46656f67b72c3531fee41772bca844f345e6483342c. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG750700278 — a six-check JSON result.
      date published: 2026-07-18T09:09:53Z
    audio: 生意気なぼくら
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 101.032
      additional property: Musical Key
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        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
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        value: 4
      additional property: Danceability
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        value: 0.703
      additional property: Energy
        type: PropertyValue
        value: 0.515
      additional property: Speechiness
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        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.752
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.033
      additional property: Liveness
        type: PropertyValue
        value: 0.176
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.787
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.152
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 「狼と香辛料 II」エンディングテーマ Perfect World
  type: MusicAlbum
  date published: 2009-08-05
  track: 君と僕
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217355
    explicit: false
    by artist: ROCKY CHACK
    in album: 「狼と香辛料 II」エンディングテーマ Perfect World
      type: MusicAlbum
      date published: 2009-08-05
    genre: anime
    isrc code: JPG750900456
    additional property: CopyrightID
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      value: registered
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T15:22:58Z
    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 0x8e0f58f1e19b4c0196361b84096aba13525c5f84db4d730b564b0a917074ca72. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG750900456 — a six-check JSON result.
      date published: 2026-07-21T15:22:58Z
    audio: 君と僕
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
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      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
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        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.354
      additional property: Energy
        type: PropertyValue
        value: 0.313
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.606
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.238

Valence (Positivity)
type: PropertyValue
value: 0.437

Loudness (dB)
type: PropertyValue
value: -11.302

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor