MACK JACK
type: MusicGroup
genre: j-rap
popularity: 15
followers: 725
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa8ba1980313f29c10c808d6814522cac791d85c82b779ff9ce9fdeb8caad1e12
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953707
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953707
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7cf42fb8-ac73-4f0d-a49d-380eda7bc50b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7cf42fb8-ac73-4f0d-a49d-380eda7bc50b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7cf42fb8-ac73-4f0d-a49d-380eda7bc50b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T23:22:21Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa8ba1980313f29c10c808d6814522cac791d85c82b779ff9ce9fdeb8caad1e12","name":"MACK JACK","registered_at":"2026-06-14T17:36:25Z","symbol":"NIM0526515","token_address":"0x12ffe87386e7e6d506dc3dd486fdd245ce3a7cbe","type":"artist","uuid":"7cf42fb8-ac73-4f0d-a49d-380eda7bc50b"}
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ba1980313f29c10c808d6814522cac791d85c82b779ff9ce9fdeb8caad1e12. Chain 2 (Bitcoin): anchored in block 953707 (2026-06-14T23:22:21Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cf42fb8-ac73-4f0d-a49d-380eda7bc50b.json and https://artists.proofprofile.net/proofs/artist/7cf42fb8-ac73-4f0d-a49d-380eda7bc50b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T23:22:21Z
  text: {"copyright_id":"0xa8ba1980313f29c10c808d6814522cac791d85c82b779ff9ce9fdeb8caad1e12","name":"MACK JACK","registered_at":"2026-06-14T17:36:25Z","symbol":"NIM0526515","token_address":"0x12ffe87386e7e6d506dc3dd486fdd245ce3a7cbe","type":"artist","uuid":"7cf42fb8-ac73-4f0d-a49d-380eda7bc50b"}
album: Bellyas
  type: MusicAlbum
  date published: 2017-02-23
album: ヨルハコレカラ/Never Ending Story
  type: MusicAlbum
  date published: 2018-07-25
album: ふたりなら…
  type: MusicAlbum
  date published: 2019-02-08
album: ENERGY
  type: MusicAlbum
  date published: 2019-08-16
album: This is me feat. NATURAL VYBZ
  type: MusicAlbum
  date published: 2019-12-20
album: 空振りエブリデイ (feat. 強)
  type: MusicAlbum
  date published: 2020-12-16
album: 泥だらけドリーマー
  type: MusicAlbum
  date published: 2021-07-02
album: 原点
  type: MusicAlbum
  date published: 2021-11-10
album: 心に太陽
  type: MusicAlbum
  date published: 2022-07-01
  track: 心に太陽
    type: MusicRecording
    duration: PT4M48S
    duration ms: 288919
    explicit: false
    by artist: MACK JACK
    in album: 心に太陽
      type: MusicAlbum
      date published: 2022-07-01
    genre: j-rap
    isrc code: JPP302200335
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T00:58:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xef77642f55c22637c5569d90f3b964fc756af4caf5d9abefeadc010dacb4730a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPP302200335
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T01:18:30Z
    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 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 0xef77642f55c22637c5569d90f3b964fc756af4caf5d9abefeadc010dacb4730a. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/JPP302200335.
      date published: 2026-07-19T01:18:30Z
    audio: 心に太陽
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 165.911
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.475
      additional property: Energy
        type: PropertyValue
        value: 0.803
      additional property: Speechiness
        type: PropertyValue
        value: 0.091
      additional property: Acousticness
        type: PropertyValue
        value: 0.218
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.14
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.613
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.556
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: BAKA VIBES / 翔んでWi-Fi (feat.ジャガ先輩)
  type: MusicAlbum
  date published: 2022-12-02
album: マイメン
  type: MusicAlbum
  date published: 2023-02-10
  track: マイメン
    type: MusicRecording
    duration: PT4M41S
    duration ms: 281225
    explicit: false
    by artist: MACK JACK
    in album: マイメン
      type: MusicAlbum
      date published: 2023-02-10
    genre: j-rap
    isrc code: JPP302300005
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T19:38:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x60022fb80319acc6563e9cd2eb0b5bf06f8ac58c18318dd71ead130844e64fe0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958607
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958607
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPP302300005
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T21:01:11Z
    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 0x60022fb80319acc6563e9cd2eb0b5bf06f8ac58c18318dd71ead130844e64fe0. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/JPP302300005.
      date published: 2026-07-18T21:01:11Z
    audio: マイメン
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 84.011
      additional property: Musical Key
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      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
album: アンセム / 走り出せ
album: Vibes Brother Z feat.CORONA
album: Atty!Atty!(熱!熱!) feat.KOPERU & teppei
album: 風林火山
album: Vibes Wonderland EP
album: NEVA LAND feat.テークエム
album: Run The Tune
album: STAY GOLD / 三宮マンマミーア
album: STAY GOLD / Sannomiya Mamma Mia

Musical Key
type: PropertyValue
value: 10

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.623

Energy
type: PropertyValue
value: 0.649

Speechiness
type: PropertyValue
value: 0.083

Acousticness
type: PropertyValue
value: 0.104

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.152

Valence (Positivity)
type: PropertyValue
value: 0.719

Loudness (dB)
type: PropertyValue
value: -6.831

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Major

アンセム / 走り出せ
type: MusicAlbum
date published: 2023-07-01

Vibes Brother Z feat.CORONA
type: MusicAlbum
date published: 2023-12-09

Atty!Atty!(熱!熱!) feat.KOPERU & teppei
type: MusicAlbum
date published: 2024-05-31
track: Atty!Atty!(熱!熱!) feat.KOPERU & teppei
  type: MusicRecording
  duration: PT3M59S
  duration ms: 239491
  explicit: false
  by artist: MACK JACK
  in album: Atty!Atty!(熱!熱!) feat.KOPERU & teppei
    type: MusicAlbum
    date published: 2024-05-31
  genre: j-rap
  isrc code: JPP302400345
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T20:42:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xec6914c9040a8e3fb8a046d4038106018b9b81ed94516d270d4a1e3b526103f5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958324
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958324
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPP302400345
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T21:05:52Z
  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 0xec6914c9040a8e3fb8a046d4038106018b9b81ed94516d270d4a1e3b526103f5. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/JPP302400345.
    date published: 2026-07-16T21:05:52Z
  audio: Atty!Atty!(熱!熱!) feat.KOPERU & teppei
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.305
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.706
    additional property: Energy
      type: PropertyValue
      value: 0.857
    additional property: Speechiness
      type: PropertyValue
      value: 0.256
    additional property: Acousticness
      type: PropertyValue
      value: 0.031
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.341
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.363
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.918
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

風林火山
type: MusicAlbum
date published: 2024-08-10

Vibes Wonderland EP
type: MusicAlbum
date published: 2024-11-01
track: マイメン'91 feat.KOPERU
  type: MusicRecording
  duration: PT5M17S
  duration ms: 317684
  explicit: false
  by artist: MACK JACK
  in album: Vibes Wonderland EP
    type: MusicAlbum
    date published: 2024-11-01
  genre: j-rap
  isrc code: JPP302400710
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T00:34:55+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6b1bcb1b0ef9955b600cbdc2b7a65752dda2bef15853defd54915642f7da6b22
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959084
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959084
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPP302400710
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T00:50:00Z
  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 0x6b1bcb1b0ef9955b600cbdc2b7a65752dda2bef15853defd54915642f7da6b22. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/JPP302400710.
    date published: 2026-07-22T00:50:00Z
  audio: マイメン'91 feat.KOPERU
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 168.034
    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: 0.484
    additional property: Energy
      type: PropertyValue
      value: 0.907
    additional property: Speechiness
      type: PropertyValue
      value: 0.223
    additional property: Acousticness
      type: PropertyValue
      value: 0.028
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.087
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.574
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.625
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major

NEVA LAND feat.テークエム
type: MusicAlbum
date published: 2025-02-28

Run The Tune
type: MusicAlbum
date published: 2025-04-30

STAY GOLD / 三宮マンマミーア
type: MusicAlbum
date published: 2025-10-01

STAY GOLD / Sannomiya Mamma Mia
type: MusicAlbum
date published: 2025-10-01