Duke Aces
type: MusicGroup
genre: choral
genre: enka
genre: kayokyoku
popularity: 18
followers: 3402
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953691
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6bf60674-6801-49cc-8bac-f5c90246afe9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6bf60674-6801-49cc-8bac-f5c90246afe9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6bf60674-6801-49cc-8bac-f5c90246afe9
additional property: OTSTimestamp
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  value: 2026-06-14T20:39:17Z
additional property: OTSCanonicalRecord
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0006658ed416c5391bd7f68f8db5152b2534a09eb7c17b42adc940008165bd0. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6bf60674-6801-49cc-8bac-f5c90246afe9.json and https://artists.proofprofile.net/proofs/artist/6bf60674-6801-49cc-8bac-f5c90246afe9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:00:24Z
  text: {"copyright_id":"0xa0006658ed416c5391bd7f68f8db5152b2534a09eb7c17b42adc940008165bd0","name":"Duke Aces","registered_at":"2026-06-14T15:44:22Z","symbol":"NIM0499779","token_address":"0x71edc115d6fc7ca3db8a5d16ea0d8b8b42ba9646","type":"artist","uuid":"6bf60674-6801-49cc-8bac-f5c90246afe9"}
album: にほんのうた 第２集
  type: MusicAlbum
  date published: 1967
album: にほんのうた 第３集
  type: MusicAlbum
  date published: 1969
album: にほんのうた 第４集
  type: MusicAlbum
  date published: 1969
album: 焼跡のジャズVol.2
  type: MusicAlbum
  date published: 1975-08-05
album: 焼跡のジャズ Vol.1
  type: MusicAlbum
  date published: 1979-08-05
album: DUKE MEETS CONCORD JAZZ ALL STARS
  type: MusicAlbum
  date published: 1981
album: WONDERFUL TIME -OLD AMERICAN FAVORITE SONGS-
  type: MusicAlbum
  date published: 1988
album: GOLDEN BEST20 DUKE ACES
  type: MusicAlbum
  date published: 1988-01-25
album: BIG ARTIST Best COLLECTION デューク・エイセス
  type: MusicAlbum
  date published: 1989-07-12
album: Wonderhul Time "U.K.Yesterday and Today
  type: MusicAlbum
  date published: 1990
album: ベスト ナウ
  type: MusicAlbum
  date published: 1990-08-08
album: にほんのうた 第1集
  type: MusicAlbum
  date published: 1992-07-29
album: Kani-doraku Theme Song
  type: MusicAlbum
  date published: 1992-11-21
album: DUKE BOX'95 40周年記念アルバム
  type: MusicAlbum
  date published: 1995-09-06
album: デューク・エイセス オリジナル・パレード
  type: MusicAlbum
  date published: 1997
album: デューク・エイセス コーラス図鑑
  type: MusicAlbum
  date published: 1997-10-29
album: 新世界
  type: MusicAlbum
  date published: 1999-10-08
  track: 遠くへ行きたい - 1992 Re-Recording
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182066
    explicit: false
    by artist: Duke Aces
    in album: 新世界
      type: MusicAlbum
      date published: 1999-10-08
    genre: choral
    genre: enka
    genre: kayokyoku
    isrc code: JPTO09230880
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
      value: 2026-07-04T16:08:57+00:00
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      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe27fb18230984530abeee3d2a820da874bb65edf96c2726fd18cfcaaa9cd7d4c
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    additional property: OTSBitcoinBlock
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:43:49Z
    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 0xe27fb18230984530abeee3d2a820da874bb65edf96c2726fd18cfcaaa9cd7d4c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPTO09230880.
      date published: 2026-07-05T01:43:49Z
    audio: 遠くへ行きたい - 1992 Re-Recording
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      additional property: Tempo (BPM)
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      additional property: Musical Key
        type: PropertyValue
        value: 0
      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: 0.3
      additional property: Energy
        type: PropertyValue
        value: 0.28
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.847
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.006
      additional property: Liveness
        type: PropertyValue
        value: 0.116
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.133
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.644
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: デューク・エイセス45
  type: MusicAlbum
  date published: 2000-09-27
album: デューク・エイセス ５５周年記念盤
  type: MusicAlbum
  date published: 2010-01-20
album: 世界のうた デューク・エイセス スタンダードを歌う - プレミアム・ツイン・ベスト・シリーズ
  type: MusicAlbum
  date published: 2012-07-25
album: にほんのうた デューク・エイセス - プレミアム・ツイン・ベスト・シリーズ
  type: MusicAlbum
  date published: 2012-07-25
  track: 女ひとり
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202733
    explicit: false
    by artist: Duke Aces
    in album: にほんのうた デューク・エイセス - プレミアム・ツイン・ベスト・シリーズ
      type: MusicAlbum
      date published: 2012-07-25
    genre: choral
    genre: enka
    genre: kayokyoku
    isrc code: JPTO07715810
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: OTSBitcoinBlock
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    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: 女ひとり
album: 生きるものの歌／友よさらば
album: 感謝還暦
album: 60周年記念盤
album: ゴールデン☆ベスト デューク・エイセス

CopyrightID
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CopyrightStatus
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value: registered

CopyrightRegisteredAt
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value: 2026-07-17T11:42:38+00:00

CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x96f477e71c74ded0ffe7c91c9aee2dbbad645a4e3fdf02069bb01ad066f123e8

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958410

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958410

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTO07715810

OTSTimestamp
type: PropertyValue
value: 2026-07-17T12:18:07Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f477e71c74ded0ffe7c91c9aee2dbbad645a4e3fdf02069bb01ad066f123e8. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/JPTO07715810.
date published: 2026-07-17T12:18:07Z

女ひとり
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 83.065
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.409
additional property: Energy
  type: PropertyValue
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additional property: Speechiness
  type: PropertyValue
  value: 0.034
additional property: Acousticness
  type: PropertyValue
  value: 0.809
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.2
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.334
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.636
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

生きるものの歌／友よさらば
type: MusicAlbum
date published: 2014-10-08

感謝還暦
type: MusicAlbum
date published: 2014-10-22

60周年記念盤
type: MusicAlbum
date published: 2015-07-15

ゴールデン☆ベスト デューク・エイセス
type: MusicAlbum
date published: 2017-11-22