Yutaka Yamakawa
type: MusicGroup
genre: enka
genre: japanese classical
genre: kayokyoku
popularity: 34
followers: 15917
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb5cca3512f16dd060809dac3add42467d37ebc80a08f1842b8c90584cbff6556
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/fed67fa4-f97f-48f5-80d7-20eb9d440559.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fed67fa4-f97f-48f5-80d7-20eb9d440559.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fed67fa4-f97f-48f5-80d7-20eb9d440559
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb5cca3512f16dd060809dac3add42467d37ebc80a08f1842b8c90584cbff6556","name":"Yutaka Yamakawa","registered_at":"2026-06-12T14:38:58Z","symbol":"NIM0327985","token_address":"0x1eec0f4eae603a44b17b2f9fb040ca3356766c2c","type":"artist","uuid":"fed67fa4-f97f-48f5-80d7-20eb9d440559"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cca3512f16dd060809dac3add42467d37ebc80a08f1842b8c90584cbff6556. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fed67fa4-f97f-48f5-80d7-20eb9d440559.json and https://artists.proofprofile.net/proofs/artist/fed67fa4-f97f-48f5-80d7-20eb9d440559.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0xb5cca3512f16dd060809dac3add42467d37ebc80a08f1842b8c90584cbff6556","name":"Yutaka Yamakawa","registered_at":"2026-06-12T14:38:58Z","symbol":"NIM0327985","token_address":"0x1eec0f4eae603a44b17b2f9fb040ca3356766c2c","type":"artist","uuid":"fed67fa4-f97f-48f5-80d7-20eb9d440559"}
album: 歌カラ ベスト4 山川 豊
  type: MusicAlbum
  date published: 1998
album: アメリカ橋～男のららばい～
  type: MusicAlbum
  date published: 1998
album: 山川 豊 全曲集
  type: MusicAlbum
  date published: 1998
album: アメリカ橋～男のららばい～
  type: MusicAlbum
  date published: 1998-08-07
  track: 麦藁帽子
    type: MusicRecording
    duration: PT4M10S
    duration ms: 250293
    explicit: false
    by artist: Yutaka Yamakawa
    in album: アメリカ橋～男のららばい～
      type: MusicAlbum
      date published: 1998-08-07
    genre: enka
    genre: japanese classical
    genre: kayokyoku
    isrc code: JPTO09820100
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T23:30:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0d901c0d1137e5409ff60ab070834bba6a21aa49a26c1d9fb23792636531b58b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959076
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959076
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTO09820100
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T02:31:24Z
    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 0x0d901c0d1137e5409ff60ab070834bba6a21aa49a26c1d9fb23792636531b58b. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:31:24Z), 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/JPTO09820100.
      date published: 2026-07-22T02:31:24Z
    audio: 麦藁帽子
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.004
      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: 0.452
      additional property: Energy
        type: PropertyValue
        value: 0.368
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.377
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.16
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.418
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.305
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 山川 豊 全曲集
  type: MusicAlbum
  date published: 1998-10-21
  track: 酒は男の子守歌
    type: MusicRecording
    duration: PT4M4S
    duration ms: 244386
    explicit: false
    by artist: Yutaka Yamakawa
    in album: 山川 豊 全曲集
      type: MusicAlbum
      date published: 1998-10-21
    genre: enka
    genre: japanese classical
    genre: kayokyoku
    isrc code: JPTO09545860
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T18:20:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9cb605a0b472b9a27cdf2e144aa376a5aaa58371549f61cc8da7c10e157f0f8c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958771
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958771
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTO09545860
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T21:22:55Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb605a0b472b9a27cdf2e144aa376a5aaa58371549f61cc8da7c10e157f0f8c. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:22:55Z), 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/JPTO09545860.
      date published: 2026-07-19T21:22:55Z
    audio: 酒は男の子守歌
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 80.906
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.272
      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
  track: 放浪ごころ
  track: ときめきワルツ
  track: 愛待草より
album: こころ演歌
album: 山川 豊 全曲集２００１
album: 山川 豊 2001 全曲集
album: 山川 豊 2002 全曲集
album: わかれ雪 山川 豊 ミニベストアルバム
album: 山川 豊 2003 全曲集
album: 山川 豊 2004 全曲集
album: 海峡本線
album: 友情-とも-
album: ニューヨーク物語
album: ニューヨーク物語り/山川豊ダンスベスト
album: 霧雨のシアトル
album: 我が娘へ/喜びの日に
album: ３０周年記念ベストアルバム
album: ナイアガラ・フォールズ
album: 山川豊 全曲集 -忍ぶほど雨の行方に射す光-
album: 山川 豊 全曲集 -忍ぶほど雨の行方に射す光-
album: 優しい女に会いたい夜は/アーバン ボクサー
album: 螢子/神戸の落葉
album: 螢子－山川豊全曲集2015－
album: 再愛 / 蜃気楼の町から
album: 35周年記念ベストアルバム
album: 熱唱!カラオケBEST3 山川 豊
album: 黄昏
album: 黄昏 (スペシャル・パッケージ)
album: 今日という日に感謝して
album: 全曲集「今日という日に感謝して」
album: 拳
album: 男の昭和挽歌
album: デビュー40周年記念コンプリートベスト
album: 人生苦労坂／ふるさとは港町
album: 兄貴／別れのしぐれ宿

Energy
type: PropertyValue
value: 0.454

Speechiness
type: PropertyValue
value: 0.037

Acousticness
type: PropertyValue
value: 0.488

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.459

Valence (Positivity)
type: PropertyValue
value: 0.599

Loudness (dB)
type: PropertyValue
value: -11.675

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

放浪ごころ
type: MusicRecording
duration: PT3M49S
duration ms: 229413
explicit: false
by artist: Yutaka Yamakawa
in album: 山川 豊 全曲集
  type: MusicAlbum
  date published: 1998-10-21
genre: enka
genre: japanese classical
genre: kayokyoku
isrc code: JPTO08852040
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T21:51:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xefb517d49b80a245ebd8c8fc87a2df9a9cba30581d74e13e4558f9d36542992a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  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/JPTO08852040
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb517d49b80a245ebd8c8fc87a2df9a9cba30581d74e13e4558f9d36542992a. 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/JPTO08852040.
  date published: 2026-07-05T01:12:41Z
audio: 放浪ごころ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 176.922
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.262
  additional property: Energy
    type: PropertyValue
    value: 0.38
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.812
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.067
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.398
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.944
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

ときめきワルツ
type: MusicRecording
duration: PT4M19S
duration ms: 259240
explicit: false
by artist: Yutaka Yamakawa
in album: 山川 豊 全曲集
  type: MusicAlbum
  date published: 1998-10-21
genre: enka
genre: japanese classical
genre: kayokyoku
isrc code: JPTO08852060
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T20:06:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3fdf0c5b32b3680e58419b0eb66ed0bcfce4f38e345302fa44865f171293b88
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958489
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958489
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTO08852060
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T04:13:26Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fdf0c5b32b3680e58419b0eb66ed0bcfce4f38e345302fa44865f171293b88. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPTO08852060.
  date published: 2026-07-18T04:13:26Z
audio: ときめきワルツ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 171.347
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.24
  additional property: Energy
    type: PropertyValue
    value: 0.217
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.685
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.186
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.21
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.373
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

愛待草より
type: MusicRecording
duration: PT4M52S
duration ms: 292160
explicit: false
by artist: Yutaka Yamakawa
in album: 山川 豊 全曲集
  type: MusicAlbum
  date published: 1998-10-21
genre: enka
genre: japanese classical
genre: kayokyoku
isrc code: JPTO09078350
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T00:45:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbcbdbb808cbaf5b8c8b6f83be41287792b8a74ac1910b86c49802930dd0e8096
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956440
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956440
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTO09078350
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T04:03:57Z
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 0xbcbdbb808cbaf5b8c8b6f83be41287792b8a74ac1910b86c49802930dd0e8096. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/JPTO09078350.
  date published: 2026-07-03T04:03:57Z
audio: 愛待草より
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 73.573
  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: 0.233
  additional property: Energy
    type: PropertyValue
    value: 0.379
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.583
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.285
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.322
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.49
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

歌カラ ベスト4 山川 豊
type: MusicAlbum
date published: 1998-12-09

こころ演歌
type: MusicAlbum
date published: 1999-07-28

山川 豊 全曲集２００１
type: MusicAlbum
date published: 2000

山川 豊 2001 全曲集
type: MusicAlbum
date published: 2000-10-12

山川 豊 2002 全曲集
type: MusicAlbum
date published: 2001-10-06

わかれ雪 山川 豊 ミニベストアルバム
type: MusicAlbum
date published: 2002-01-30

山川 豊 2003 全曲集
type: MusicAlbum
date published: 2002-10-09

山川 豊 2004 全曲集
type: MusicAlbum
date published: 2003-09-10

海峡本線
type: MusicAlbum
date published: 2005-02-02

友情-とも-
type: MusicAlbum
date published: 2005-10-13

ニューヨーク物語
type: MusicAlbum
date published: 2007-01-31

ニューヨーク物語り/山川豊ダンスベスト
type: MusicAlbum
date published: 2007-12-05

霧雨のシアトル
type: MusicAlbum
date published: 2009-06-24

我が娘へ/喜びの日に
type: MusicAlbum
date published: 2010-09-08

３０周年記念ベストアルバム
type: MusicAlbum
date published: 2011-01-01

ナイアガラ・フォールズ
type: MusicAlbum
date published: 2012-01-06

ナイアガラ・フォールズ
type: MusicAlbum
date published: 2012-01-11

山川豊 全曲集 -忍ぶほど雨の行方に射す光-
type: MusicAlbum
date published: 2013-02-01

山川 豊 全曲集 -忍ぶほど雨の行方に射す光-
type: MusicAlbum
date published: 2013-02-06
track: メープル街道
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  genre: japanese classical
  genre: kayokyoku
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  additional property: OTSVerifyInstructions
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    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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4ad29d02ae124bc68019c8ccfe9073cd1e6d3499cf98d3deca31c066f18a68. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/JPTO01101664.
    date published: 2026-07-12T18:30:59Z
  audio: メープル街道
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    additional property: Musical Key
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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track: アメリカ橋
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  genre: japanese classical
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  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
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    date published: 2026-07-20T21:15:01Z
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track: 我が娘へ
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  genre: enka
  genre: japanese classical
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  subject of: OpenTimestamps Proof of Existence
  audio: 我が娘へ

OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
type: PropertyValue
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OTSVerificationAPI
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OTSTimestamp
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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 0xb1842fad61ff6220807244ea4202042d9d4fe5c860868397c9bb831cff1b19ff. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/JPTO01000675.
date published: 2026-07-16T06:29:25Z

我が娘へ
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Danceability
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additional property: Energy
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additional property: Valence (Positivity)
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優しい女に会いたい夜は/アーバン ボクサー
type: MusicAlbum
date published: 2013-05-22

螢子/神戸の落葉
type: MusicAlbum
date published: 2015-03-25

螢子－山川豊全曲集2015－
type: MusicAlbum
date published: 2015-07-01

再愛 / 蜃気楼の町から
type: MusicAlbum
date published: 2016-03-09

35周年記念ベストアルバム
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date published: 2016-07-20
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    date published: 2016-07-20
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T01:26:17Z
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熱唱!カラオケBEST3 山川 豊
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date published: 2017-03-15

黄昏
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date published: 2017-06-14

黄昏 (スペシャル・パッケージ)
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date published: 2017-12-01

今日という日に感謝して
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date published: 2018-04-18

全曲集「今日という日に感謝して」
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date published: 2018-10-10
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-05T18:48:28Z
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拳
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date published: 2020-06-24

男の昭和挽歌
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デビュー40周年記念コンプリートベスト
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-22T01:06:57Z
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTO09078300
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T15:22:58Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d10a2a1c833841592d36a3de980c72865fb383e069433256366c5236dc9ec3b. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTO09078300.
    date published: 2026-07-21T15:22:58Z
  audio: はぐれ雲
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 95.086
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.516
    additional property: Energy
      type: PropertyValue
      value: 0.438
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.619
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.251
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.65
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.584
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: 男の昭和挽歌
  type: MusicRecording
  duration: PT3M50S
  duration ms: 230933
  explicit: false
  by artist: Yutaka Yamakawa
  in album: デビュー40周年記念コンプリートベスト
    type: MusicAlbum
    date published: 2021-05-12
  genre: enka
  genre: japanese classical
  genre: kayokyoku
  isrc code: JPPO02002529
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T00:55:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9c0e6f9e153bb7411e4169b324731579fe4febd0825390d3f6e3a4d90c13cacd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958802
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 男の昭和挽歌

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958802

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02002529

OTSTimestamp
type: PropertyValue
value: 2026-07-20T01:04:02Z

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 0x9c0e6f9e153bb7411e4169b324731579fe4febd0825390d3f6e3a4d90c13cacd. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/JPPO02002529.
date published: 2026-07-20T01:04:02Z

男の昭和挽歌
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 141.825
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.454
additional property: Energy
  type: PropertyValue
  value: 0.794
additional property: Speechiness
  type: PropertyValue
  value: 0.035
additional property: Acousticness
  type: PropertyValue
  value: 0.035
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.333
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.588
additional property: Loudness (dB)
  type: PropertyValue
  value: -4.591
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Minor

人生苦労坂／ふるさとは港町
type: MusicAlbum
date published: 2023-07-05
track: 人生苦労坂
  type: MusicRecording
  duration: PT4M42S
  duration ms: 282920
  explicit: false
  by artist: Yutaka Yamakawa
  in album: 人生苦労坂／ふるさとは港町
    type: MusicAlbum
    date published: 2023-07-05
  genre: enka
  genre: japanese classical
  genre: kayokyoku
  isrc code: JPCR02302350
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T15:47:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdff5605e73c0245e07d7a4b67d53098ccefd931ee58e6207b2bedd1f34d9f288
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956728
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956728
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCR02302350
  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 0xdff5605e73c0245e07d7a4b67d53098ccefd931ee58e6207b2bedd1f34d9f288. 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/JPCR02302350.
    date published: 2026-07-05T01:43:49Z
  audio: 人生苦労坂
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 132.289
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.401
    additional property: Energy
      type: PropertyValue
      value: 0.793
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.517
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.088
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.669
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.138
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

兄貴／別れのしぐれ宿
type: MusicAlbum
date published: 2024-10-02
track: 別れのしぐれ宿
  type: MusicRecording
  duration: PT5M12S
  duration ms: 312066
  explicit: false
  by artist: Yutaka Yamakawa
  in album: 兄貴／別れのしぐれ宿
    type: MusicAlbum
    date published: 2024-10-02
  genre: enka
  genre: japanese classical
  genre: kayokyoku
  isrc code: JPCR02403480
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T22:23:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xefbd71c8313b7d023726056b44203d361e08f6f117a2f1a6f455e16b1004c16f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958943
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958943
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCR02403480
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T00:27:37Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbd71c8313b7d023726056b44203d361e08f6f117a2f1a6f455e16b1004c16f. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/JPCR02403480.
    date published: 2026-07-21T00:27:37Z
  audio: 別れのしぐれ宿
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.96
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.503
    additional property: Energy
      type: PropertyValue
      value: 0.643
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.83
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.157
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.575
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.559
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor