Eisaku Okawa
type: MusicGroup
genre: enka
genre: kayokyoku
popularity: 31
followers: 11554
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb9f25b8137be2f74a5e292cfbeba7bf84360179ed7fc069a7834a8fce1a09080
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0707e375-18ee-45ca-aa7c-7a2d45f7525d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0707e375-18ee-45ca-aa7c-7a2d45f7525d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0707e375-18ee-45ca-aa7c-7a2d45f7525d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb9f25b8137be2f74a5e292cfbeba7bf84360179ed7fc069a7834a8fce1a09080","name":"Eisaku Okawa","registered_at":"2026-06-11T11:11:24Z","symbol":"NIM0009785","token_address":"0x87727e6be5d423155607b17e98b85f5fbfdcc051","type":"artist","uuid":"0707e375-18ee-45ca-aa7c-7a2d45f7525d"}
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 0xb9f25b8137be2f74a5e292cfbeba7bf84360179ed7fc069a7834a8fce1a09080. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0707e375-18ee-45ca-aa7c-7a2d45f7525d.json and https://artists.proofprofile.net/proofs/artist/0707e375-18ee-45ca-aa7c-7a2d45f7525d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
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album: 東京流転笠 大川栄策 男の世界
  type: MusicAlbum
  date published: 1986-12-21
album: 夢化粧〜演歌の源流を訪ねて〜
  type: MusicAlbum
  date published: 1987-06-21
album: 舞酔（まよ）い雪／おんな舟
  type: MusicAlbum
  date published: 1988-04-21
album: 夢もどき／大川栄策〜韓国メロディを唄う〜
  type: MusicAlbum
  date published: 1988-06-21
album: 栄ちゃんの十八番（おはこ）集
  type: MusicAlbum
  date published: 1988-09-21
album: 夢ひと夜／雪ぼたる
  type: MusicAlbum
  date published: 1989-02-21
album: 夢もどき／春じたく
  type: MusicAlbum
  date published: 1989-02-21
album: 大川栄策 昭和をうたう
  type: MusicAlbum
  date published: 1989-03-21
album: さざんかの宿／恋吹雪
  type: MusicAlbum
  date published: 1989-03-25
album: 舞酔（まよ）い雪／江差・追分・風の街
  type: MusicAlbum
  date published: 1989-03-25
album: わたしのソウル／星降る京釜線（キョンプセン）
  type: MusicAlbum
  date published: 1990-06-21
album: みれん雨／すみだがわ
  type: MusicAlbum
  date published: 1991-03-21
album: 栄ちゃんの民謡十八番集
  type: MusicAlbum
  date published: 1991-07-21
album: おけさ宿／ロマンチック佐渡航路
  type: MusicAlbum
  date published: 1991-07-21
album: 絆川（きずながわ）／みちづれ酒場
  type: MusicAlbum
  date published: 1992-03-01
album: 絆川 〜大川栄策オリジナル曲集〜
  type: MusicAlbum
  date published: 1992-03-21
album: スーパー・セレクト・シリーズ 赤い酒
  type: MusicAlbum
  date published: 1992-05-21
album: 小諸情歌 ／ 炎（ひ）の螢
  type: MusicAlbum
  date published: 1992-08-21
album: 酔いぐれすずめ
  type: MusicAlbum
  date published: 1993-02-21
album: 女の一生／恋夢情
  type: MusicAlbum
  date published: 1993-02-21
album: 25周年記念オリジナルアルバム 酔いぐれすずめ
  type: MusicAlbum
  date published: 1993-06-21
album: 雪国本線
  type: MusicAlbum
  date published: 1993-10-01
album: 夢の露
  type: MusicAlbum
  date published: 1993-10-01
album: 日本の歌謡名曲選
  type: MusicAlbum
  date published: 1993-12-21
album: 出で湯橋
  type: MusicAlbum
  date published: 1994-04-21
album: オリジナル・アルバム 出で湯橋
  type: MusicAlbum
  date published: 1994-09-21
album: わかれ恋歌
  type: MusicAlbum
  date published: 1995-02-21
album: おんな・恋歌・こころうた 吉岡治作品集
  type: MusicAlbum
  date published: 1995-02-21
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    duration: PT4M35S
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    explicit: false
    by artist: Eisaku Okawa
    in album: おんな・恋歌・こころうた 吉岡治作品集
      type: MusicAlbum
      date published: 1995-02-21
    genre: enka
    genre: kayokyoku
    isrc code: JPCO08206690
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T03:58:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO08206690
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x403b13bc825e1bf4872936954ba0270418c19f75d7214dafcd150a52d6d4d0d0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPCO08206690.
      date published: 2026-07-04T10:04:33Z
    audio: さざんかの宿
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 75.042
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.495
      additional property: Energy
        type: PropertyValue
        value: 0.288
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.73
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.082
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.365
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.823
      additional property: Key Name
      additional property: Mode Name
album: 縁歌・旅歌・こころうた
album: 想い定めて
album: 恋の細道
album: 夢一天
album: 能登の恋歌
album: 歌手生活30周年記念アルバム・能登の恋歌
album: 男の喝采
album: 風の宿／泪橋
album: 炎（ひ）の蛍／愛炎
album: 海峡酒場／雨の田原坂
album: 海峡ふたりぽっち／筑後川
album: 男春秋／無情な人
album: 哀愁平野／裏町しぐれ
album: 新道／望郷恋唄
album: 大川栄策歌手生活35周年記念・古賀政男生誕100周年記念 女が生きる人生の愁いを唄う「赤い酒」
album: 大川栄策歌手生活35周年記念 筑紫竜平作品集「新道」
album: 刑事／正義に燃えて
album: 赤い酒／夜の詩
album: 寒椿／はぐれ雨
album: 路傍の花／あなたあじさい人の妻
album: 雨の港／舞酔（まよ）い雪
album: 木枯紋次郎／落城の賦
album: 大川栄策歌手生活35周年記念・古賀政男生誕100年記念 目ン無い千鳥
album: 湯の町エレジー／春まだ浅く
album: 大川栄策歌手生活35周年記念・古賀政男生誕100年記念特別企画 男の純情
album: 大川栄策歌手生活35周年記念 流し唄
album: 港雨／雀のお宿
album: 大川栄策全曲集 / 港雨
album: 夜明け前／露地あかり
album: 駅／あの愛をもう一度
album: 大川栄策全曲集 駅
album: 大川栄策全曲集 / 風港
album: 昭和浪漫
album: 名残りの桜
album: 歌手生活40周年記念オリジナルアルバム 「旅路」

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Minor

縁歌・旅歌・こころうた
type: MusicAlbum
date published: 1996-02-21

想い定めて
type: MusicAlbum
date published: 1996-09-21

恋の細道
type: MusicAlbum
date published: 1997-06-21

夢一天
type: MusicAlbum
date published: 1998-01-21
track: 夢一天
  type: MusicRecording
  duration: PT4M44S
  duration ms: 284000
  explicit: false
  by artist: Eisaku Okawa
  in album: 夢一天
    type: MusicAlbum
    date published: 1998-01-21
  genre: enka
  genre: kayokyoku
  isrc code: JPCO09757560
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T21:11:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0e0591e8c6dc560d69825011f14c1e85dfc744416a26d9b3e0cb24ef1528681b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959061
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959061
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO09757560
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T00:12:29Z
  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 0x0e0591e8c6dc560d69825011f14c1e85dfc744416a26d9b3e0cb24ef1528681b. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:12:29Z), 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/JPCO09757560.
    date published: 2026-07-22T00:12:29Z
  audio: 夢一天
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.934
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.392
    additional property: Energy
      type: PropertyValue
      value: 0.43
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.596
    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Mode Name
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能登の恋歌
type: MusicAlbum
date published: 1998-09-19

歌手生活30周年記念アルバム・能登の恋歌
type: MusicAlbum
date published: 1998-09-19
track: 能登の恋歌
  type: MusicRecording
  duration: PT4M28S
  duration ms: 268093
  explicit: false
  by artist: Eisaku Okawa
  in album: 歌手生活30周年記念アルバム・能登の恋歌
    type: MusicAlbum
    date published: 1998-09-19
  genre: enka
  genre: kayokyoku
  isrc code: JPCO09845380
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T15:28:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x508a1ec0eabd6b40d7ab888da52cf522fc831f136b44201519402d9a67278dd9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO09845380
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  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 0x508a1ec0eabd6b40d7ab888da52cf522fc831f136b44201519402d9a67278dd9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPCO09845380.
    date published: 2026-07-05T01:12:41Z
  audio: 能登の恋歌
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
      value: 0.376
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.027
    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.337
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.195
    additional property: Loudness (dB)
      type: PropertyValue
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    additional property: Key Name
      type: PropertyValue
      value: D
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男の喝采
type: MusicAlbum
date published: 1999-02-20

風の宿／泪橋
type: MusicAlbum
date published: 1999-09-18

炎（ひ）の蛍／愛炎
type: MusicAlbum
date published: 2000-04-21

海峡酒場／雨の田原坂
type: MusicAlbum
date published: 2000-10-21

海峡ふたりぽっち／筑後川
type: MusicAlbum
date published: 2001-06-21

男春秋／無情な人
type: MusicAlbum
date published: 2001-11-21

哀愁平野／裏町しぐれ
type: MusicAlbum
date published: 2002-05-18

新道／望郷恋唄
type: MusicAlbum
date published: 2003-01-18

大川栄策歌手生活35周年記念・古賀政男生誕100周年記念 女が生きる人生の愁いを唄う「赤い酒」
type: MusicAlbum
date published: 2003-06-18

大川栄策歌手生活35周年記念 筑紫竜平作品集「新道」
type: MusicAlbum
date published: 2003-06-18

刑事／正義に燃えて
type: MusicAlbum
date published: 2003-07-23

赤い酒／夜の詩
type: MusicAlbum
date published: 2003-08-20

寒椿／はぐれ雨
type: MusicAlbum
date published: 2003-09-25

路傍の花／あなたあじさい人の妻
type: MusicAlbum
date published: 2003-10-22

雨の港／舞酔（まよ）い雪
type: MusicAlbum
date published: 2003-11-19

木枯紋次郎／落城の賦
type: MusicAlbum
date published: 2003-12-17

大川栄策歌手生活35周年記念・古賀政男生誕100年記念 目ン無い千鳥
type: MusicAlbum
date published: 2004-02-18

湯の町エレジー／春まだ浅く
type: MusicAlbum
date published: 2004-03-17

大川栄策歌手生活35周年記念・古賀政男生誕100年記念特別企画 男の純情
type: MusicAlbum
date published: 2004-04-21

大川栄策歌手生活35周年記念 流し唄
type: MusicAlbum
date published: 2004-05-19

港雨／雀のお宿
type: MusicAlbum
date published: 2004-06-23

大川栄策全曲集 / 港雨
type: MusicAlbum
date published: 2004-11-25

夜明け前／露地あかり
type: MusicAlbum
date published: 2005-02-23

駅／あの愛をもう一度
type: MusicAlbum
date published: 2005-08-31

大川栄策全曲集 駅
type: MusicAlbum
date published: 2005-10-19

大川栄策全曲集 / 風港
type: MusicAlbum
date published: 2007-11-21

昭和浪漫
type: MusicAlbum
date published: 2007-12-05

名残りの桜
type: MusicAlbum
date published: 2008-01-30

名残りの桜
type: MusicAlbum
date published: 2008-05-21

歌手生活40周年記念オリジナルアルバム 「旅路」
type: MusicAlbum
date published: 2008-10-08

二人の旅路
type: MusicAlbum
date published: 2008-10-22
track: 二人の旅路
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  duration: PT4M16S
  duration ms: 256106
  explicit: false
  by artist: Eisaku Okawa
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    type: MusicAlbum
    date published: 2008-10-22
  genre: enka
  genre: kayokyoku
  isrc code: JPCO00824610
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T04:58:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb9c6db3567b902cdaf699f402341bed354c9ff09393fb4ae79b5a673f12b7d3d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959100
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959100
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO00824610
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T05:29:55Z
  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 0xb9c6db3567b902cdaf699f402341bed354c9ff09393fb4ae79b5a673f12b7d3d. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/JPCO00824610.
    date published: 2026-07-22T05:29:55Z
  audio: 二人の旅路
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 93.098
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.485
    additional property: Energy
      type: PropertyValue
      value: 0.534
    additional property: Speechiness
      type: PropertyValue
      value: 0.026
    additional property: Acousticness
      type: PropertyValue
      value: 0.627
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.274
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.316
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.106
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor

大川栄策全曲集 二人の旅路
type: MusicAlbum
date published: 2008-11-19

名曲カバー傑作撰
type: MusicAlbum
date published: 2009-02-18
track: みちのくひとり旅
  type: MusicRecording
  duration: PT3M53S
  duration ms: 233786
  explicit: false
  by artist: Eisaku Okawa
  in album: 名曲カバー傑作撰
    type: MusicAlbum
    date published: 2009-02-18
  genre: enka
  genre: kayokyoku
  isrc code: JPCO08107720
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T08:10:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x20d89f12e247ed023f904f83c00b51161b12341774024f36ccdb02a07ae31ebf
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956474
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956474
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO08107720
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T08:56:35Z
  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 0x20d89f12e247ed023f904f83c00b51161b12341774024f36ccdb02a07ae31ebf. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPCO08107720.
    date published: 2026-07-03T08:56:35Z
  audio: みちのくひとり旅
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.293
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.344
    additional property: Energy
      type: PropertyValue
      value: 0.381
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.412
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.139
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.296
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.788
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

浪花ことぶき
type: MusicAlbum
date published: 2009-07-01
track: 高山の女
  type: MusicRecording
  duration: PT4M26S
  duration ms: 266506
  explicit: false
  by artist: Eisaku Okawa
  in album: 浪花ことぶき
    type: MusicAlbum
    date published: 2009-07-01
  genre: enka
  genre: kayokyoku
  isrc code: JPCO08831540
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T06:31:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x97c63865e54c63060c7c97c66e34d958b4c92dfb9f31b2e78c93b3c5ff4bacb7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958838
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958838
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO08831540
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T09:34:35Z
  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 0x97c63865e54c63060c7c97c66e34d958b4c92dfb9f31b2e78c93b3c5ff4bacb7. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:34:35Z), 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/JPCO08831540.
    date published: 2026-07-20T09:34:35Z
  audio: 高山の女
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.607
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.382
    additional property: Energy
      type: PropertyValue
      value: 0.407
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.743
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.069
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.374
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.683
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Minor

浪花ことぶき / 昭和浪漫
type: MusicAlbum
date published: 2009-10-21

大川栄策全曲集 浪花ことぶき
type: MusicAlbum
date published: 2009-11-18

あの日の君を恋うる歌
type: MusicAlbum
date published: 2010-03-10
track: あの日の君を恋うる歌
  type: MusicRecording
  duration: PT4M24S
  duration ms: 264386
  explicit: false
  by artist: Eisaku Okawa
  in album: あの日の君を恋うる歌
    type: MusicAlbum
    date published: 2010-03-10
  genre: enka
  genre: kayokyoku
  isrc code: JPCO00935460
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T02:24:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x714b66890789b0c0d6b40b1a2f2cbfb9b6151c66c9bd8357033524de16654942
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958823
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958823
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO00935460
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T05:27:53Z
  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 0x714b66890789b0c0d6b40b1a2f2cbfb9b6151c66c9bd8357033524de16654942. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:27:53Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO00935460.
    date published: 2026-07-20T05:27:53Z
  audio: あの日の君を恋うる歌
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 81.019
    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: 0.409
    additional property: Energy
      type: PropertyValue
      value: 0.448
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.712
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.133
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.479
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.869
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

大川栄策ヒット曲集 2010
type: MusicAlbum
date published: 2010-06-23

“極上演歌特盛”シリーズ 大川栄策
type: MusicAlbum
date published: 2010-10-20

高山の女 (ひと) 〜新録音〜
type: MusicAlbum
date published: 2011-04-06

大川栄策全曲集 高山の女 〜新録音〜
type: MusicAlbum
date published: 2011-11-23

昭和放浪記
type: MusicAlbum
date published: 2012-02-01

古賀メロディスーパーベスト 〜思い出の記〜
type: MusicAlbum
date published: 2012-05-09

古賀メロディ スーパーベスト II 〜無法松の一生 (度胸千両入り)〜
type: MusicAlbum
date published: 2013-08-28

大川栄策全曲集 湯の町月夜
type: MusicAlbum
date published: 2013-10-23

男一途
type: MusicAlbum
date published: 2013-11-27

大川栄策 プレミアム・ベスト 2014
type: MusicAlbum
date published: 2014-06-18

大川栄策全曲集 男一途、あばれ舟唄
type: MusicAlbum
date published: 2014-11-19

古賀政男生誕110年記念 古賀メロディ スーパーベスト III 〜影を慕いて〜
type: MusicAlbum
date published: 2014-11-19

究極ベスト / 大川栄策
type: MusicAlbum
date published: 2015-02-18

大川栄策 ダブル・ベスト☆オリジナル & カバーズ
type: MusicAlbum
date published: 2015-07-22

みれん舟
type: MusicAlbum
date published: 2016-03-02

スーパー・カップリング・シリーズ さざんかの宿 / 駅
type: MusicAlbum
date published: 2016-04-27

一途な女
type: MusicAlbum
date published: 2016-08-10

大川栄策 全曲集 みれん舟 / 一途な女
type: MusicAlbum
date published: 2016-11-23

忍ぶの乱れ
type: MusicAlbum
date published: 2017-03-08

大川栄策全曲集 忍ぶの乱れ
type: MusicAlbum
date published: 2017-11-22
track: 目ン無い千鳥
  type: MusicRecording
  duration: PT3M42S
  duration ms: 222653
  explicit: false
  by artist: Eisaku Okawa
  in album: 大川栄策全曲集 忍ぶの乱れ
    type: MusicAlbum
    date published: 2017-11-22
  genre: enka
  genre: kayokyoku
  isrc code: JPCO06909450
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T06:56:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x65e613689f04d4ae1693636c535e5a869511c91b0d802b6f04afbf7b25aebcfb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958842
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958842
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO06909450
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T09:58:04Z
  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 0x65e613689f04d4ae1693636c535e5a869511c91b0d802b6f04afbf7b25aebcfb. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:58:04Z), 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/JPCO06909450.
    date published: 2026-07-20T09:58:04Z
  audio: 目ン無い千鳥
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 186.952
    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: 0.267
    additional property: Energy
      type: PropertyValue
      value: 0.351
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.505
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.081
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.511
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.574
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 雨の港
  type: MusicRecording
  duration: PT4M26S
  duration ms: 266720
  explicit: false
  by artist: Eisaku Okawa
  in album: 大川栄策全曲集 忍ぶの乱れ
    type: MusicAlbum
    date published: 2017-11-22
  genre: enka
  genre: kayokyoku
  isrc code: JPCO08523750
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T10:56:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa9b73813b4000c889a3182d0a7c724b31aab56afe560d9048d14ea67176d0c6f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958286
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958286
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO08523750
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T12:43:37Z
  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 0xa9b73813b4000c889a3182d0a7c724b31aab56afe560d9048d14ea67176d0c6f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPCO08523750.
    date published: 2026-07-16T12:43:37Z
  audio: 雨の港
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.33
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.377
    additional property: Energy
      type: PropertyValue
      value: 0.319
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.803
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.28
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.406
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.768
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: 駅
  type: MusicRecording
  duration: PT4M34S
  duration ms: 274386
  explicit: false
  by artist: Eisaku Okawa
  in album: 大川栄策全曲集 忍ぶの乱れ
    type: MusicAlbum
    date published: 2017-11-22
  genre: enka
  genre: kayokyoku
  isrc code: JPCO00511960
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T06:06:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8ac8aee3796d6610585bbfa0f027b712a650c73610a6d8384e4e2760403ecd3b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 駅
track: 路傍の花
track: 女のグラス

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956772

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO00511960

OTSTimestamp
type: PropertyValue
value: 2026-07-05T10:01:46Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac8aee3796d6610585bbfa0f027b712a650c73610a6d8384e4e2760403ecd3b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPCO00511960.
date published: 2026-07-05T10:01:46Z

駅
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 77.049
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.493
additional property: Energy
  type: PropertyValue
  value: 0.439
additional property: Speechiness
  type: PropertyValue
  value: 0.028
additional property: Acousticness
  type: PropertyValue
  value: 0.692
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.222
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.438
additional property: Loudness (dB)
  type: PropertyValue
  value: -7.14
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Minor

路傍の花
type: MusicRecording
duration: PT3M44S
duration ms: 224013
explicit: false
by artist: Eisaku Okawa
in album: 大川栄策全曲集 忍ぶの乱れ
  type: MusicAlbum
  date published: 2017-11-22
genre: enka
genre: kayokyoku
isrc code: JPCO00322100
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T12:18:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaa4a69d85f29f98376a0ffad4a86a6e1ecf8523a534740a0993be5241a706a4a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958157
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958157
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO00322100
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T13:14:32Z
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 0xaa4a69d85f29f98376a0ffad4a86a6e1ecf8523a534740a0993be5241a706a4a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/JPCO00322100.
  date published: 2026-07-15T13:14:32Z
audio: 路傍の花
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 88.702
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.55
  additional property: Energy
    type: PropertyValue
    value: 0.449
  additional property: Speechiness
    type: PropertyValue
    value: 0.027
  additional property: Acousticness
    type: PropertyValue
    value: 0.668
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.513
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.333
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

女のグラス
type: MusicRecording
duration: PT4M14S
duration ms: 254960
explicit: false
by artist: Eisaku Okawa
in album: 大川栄策全曲集 忍ぶの乱れ
  type: MusicAlbum
  date published: 2017-11-22
genre: enka
genre: kayokyoku
isrc code: JPCO08925400
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-22T09:10:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xecd864f9ac55b5b065b3375779adb44cf46bf580a1218e5dbc42ee1c0de85c18
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO08925400
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T10:01:58Z
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 0xecd864f9ac55b5b065b3375779adb44cf46bf580a1218e5dbc42ee1c0de85c18. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO08925400.
  date published: 2026-07-22T10:01:58Z
audio: 女のグラス
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 147.255
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.46
  additional property: Energy
    type: PropertyValue
    value: 0.392
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.731
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.35
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.384
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.4
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

大川栄策全曲集 男の火花
type: MusicAlbum
date published: 2018-11-21
track: 男の火花
  type: MusicRecording
  duration: PT5M3S
  duration ms: 303093
  explicit: false
  by artist: Eisaku Okawa
  in album: 大川栄策全曲集 男の火花
    type: MusicAlbum
    date published: 2018-11-21
  genre: enka
  genre: kayokyoku
  isrc code: JPCO01820260
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T02:04:32+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe4bd062346d12723f09604183830403ca523b14b589af3859eabdbaea5c0c581
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959088
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959088
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO01820260
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T05:04:17Z
  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 0xe4bd062346d12723f09604183830403ca523b14b589af3859eabdbaea5c0c581. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T05:04:17Z), 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/JPCO01820260.
    date published: 2026-07-22T05:04:17Z
  audio: 男の火花
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 151.939
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.408
    additional property: Energy
      type: PropertyValue
      value: 0.514
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.664
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.081
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.528
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.443
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 風港
  type: MusicRecording
  duration: PT4M50S
  duration ms: 290346
  explicit: false
  by artist: Eisaku Okawa
  in album: 大川栄策全曲集 男の火花
    type: MusicAlbum
    date published: 2018-11-21
  genre: enka
  genre: kayokyoku
  isrc code: JPCO00717920
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T12:02:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x878498d3d354368634a1df5194aa75eb0107d999817296e1de086f5214fa203a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959128
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959128
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO00717920
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T15:03:17Z
  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 0x878498d3d354368634a1df5194aa75eb0107d999817296e1de086f5214fa203a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:03:17Z), 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/JPCO00717920.
    date published: 2026-07-22T15:03:17Z
  audio: 風港
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.846
    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: 0.462
    additional property: Energy
      type: PropertyValue
      value: 0.483
    additional property: Speechiness
      type: PropertyValue
      value: 0.027
    additional property: Acousticness
      type: PropertyValue
      value: 0.668
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.22
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.571
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.582
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

思い出の記 / 筑後川エレジー / みやまみかん小唄
type: MusicAlbum
date published: 2019-09-04

大川栄策全曲集 未練なんだぜ
type: MusicAlbum
date published: 2019-10-23

雪ノ花
type: MusicAlbum
date published: 2019-11-13

面影しぐれ
type: MusicAlbum
date published: 2020-08-26

大川栄策全曲集 雪ノ花、面影しぐれ
type: MusicAlbum
date published: 2020-11-18

北の慕情
type: MusicAlbum
date published: 2021-04-28

大川栄策全曲集 北の慕情
type: MusicAlbum
date published: 2021-11-17

男泣かせの雨が降る
type: MusicAlbum
date published: 2021-12-08

なごり雨
type: MusicAlbum
date published: 2022-08-24
track: なごり雨
  type: MusicRecording
  duration: PT4M19S
  duration ms: 259760
  explicit: false
  by artist: Eisaku Okawa
  in album: なごり雨
    type: MusicAlbum
    date published: 2022-08-24
  genre: enka
  genre: kayokyoku
  isrc code: JPCO02217950
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T22:55:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdbd3805f128798dbd154c68c1c632406b3e19e525b0a2b8307dc006fc05ecef8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958340
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958340
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO02217950
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T00:53:26Z
  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 0xdbd3805f128798dbd154c68c1c632406b3e19e525b0a2b8307dc006fc05ecef8. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/JPCO02217950.
    date published: 2026-07-17T00:53:26Z
  audio: なごり雨
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 133.734
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.334
    additional property: Energy
      type: PropertyValue
      value: 0.538
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.649
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.1
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.371
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.583
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Minor

大川栄策全曲集 男泣かせの雨が降る
type: MusicAlbum
date published: 2022-10-19

きたみなと
type: MusicAlbum
date published: 2023-04-05

大川栄策 古賀政男を唄う 〜古賀メロディ50選-Vol.1-〜
type: MusicAlbum
date published: 2023-06-21

大川栄策全曲集 なごり雨、きたみなと
type: MusicAlbum
date published: 2023-11-22

命かさねて
type: MusicAlbum
date published: 2024-02-28
track: 命かさねて
  type: MusicRecording
  duration: PT4M40S
  duration ms: 280600
  explicit: false
  by artist: Eisaku Okawa
  in album: 命かさねて
    type: MusicAlbum
    date published: 2024-02-28
  genre: enka
  genre: kayokyoku
  isrc code: JPCO02400930
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T21:54:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf189abcbcd16fc5fc86651d741891a1c9ac7ae5c9367d42feb8028f5ce73f5d4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958461
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958461
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO02400930
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T23:18:11Z
  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
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