Leyona
type: MusicGroup
genre: j-dance
genre: j-r&b
genre: kayokyoku
genre: shibuya-kei
description: is a Japanese singer and songwriter from Mihara city in Hiroshima Prefecture. She presently belongs to Cutting Edge. Discography Singles Orange (1999) Beat Goes On and The (1999) Town to Town (
popularity: 19
followers: 4949
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additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-15T11:57:35Z
album: One blooD
  type: MusicAlbum
  date published: 1999
album: Town to Town
  type: MusicAlbum
  date published: 2000
album: One blooD
  type: MusicAlbum
  date published: 2000
album: One blooD
  type: MusicAlbum
  date published: 2000-08-02
album: travellin' man
  type: MusicAlbum
  date published: 2001
album: Tone
  type: MusicAlbum
  date published: 2001
album: 風をあつめて
  type: MusicAlbum
  date published: 2001
album: 風をあつめて
  type: MusicAlbum
  date published: 2001-01-24
album: Tone
  type: MusicAlbum
  date published: 2001-06-06
album: travellin' man
  type: MusicAlbum
  date published: 2001-10-24
album: Niji
  type: MusicAlbum
  date published: 2002
  track: travellin'man
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    duration: PT5M4S
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    by artist: Leyona
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      date published: 2002
    genre: j-dance
    genre: j-r&b
    genre: kayokyoku
    genre: shibuya-kei
    isrc code: JPES00101321
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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: 2026-07-17T06:09:33Z
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  track: 風をあつめて
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      type: MusicAlbum
      date published: 2002
    genre: j-dance
    genre: j-r&b
    genre: kayokyoku
    genre: shibuya-kei
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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
    audio: 風をあつめて
album: Free wave / JOY TO THE WORLD
album: 500マイル/Love
album: SunRoad
album: ひかりのうた
album: Try to Fly
album: Leyona's Greatest Groovin'
album: MELODY
album: MUSICISMAGIC
album: PATCHWORK
album: わすれちゃうよ
album: Bittersweet / I KNOW
album: SMMR
album: 500マイル / 風をあつめて BESTタッグ

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c5799eacc1b17add3b65f965af85c8ff439d6f2910413655841a8f5c9d93d0. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/JPES00002981.
date published: 2026-07-02T21:01:51Z

風をあつめて
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Free wave / JOY TO THE WORLD
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date published: 2002

Niji
type: MusicAlbum
date published: 2002-01-23

500マイル/Love
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date published: 2003

SunRoad
type: MusicAlbum
date published: 2003
track: ひかりのうた
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  genre: j-dance
  genre: j-r&b
  genre: kayokyoku
  genre: shibuya-kei
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  additional property: OTSTimestamp
    type: PropertyValue
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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
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b64885d656070a0f9966ced12ae6b10c50162e39c40d78ec3231944b1b32656. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/JPES00300441.
    date published: 2026-07-21T04:29:05Z
  audio: ひかりのうた
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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track: 500マイル
  type: MusicRecording
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    type: MusicAlbum
    date published: 2003
  genre: j-dance
  genre: j-r&b
  genre: kayokyoku
  genre: shibuya-kei
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  additional property: OTSTimestamp
    type: PropertyValue
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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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa390455c96da8c12281d685fea900ae458222ba2bc46a6cf2c0020f2ec8bc114. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/JPES00301143.
    date published: 2026-07-20T17:58:04Z
  audio: 500マイル
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    additional property: Danceability
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ひかりのうた
type: MusicAlbum
date published: 2003-05-08

500マイル/Love
type: MusicAlbum
date published: 2003-07-24

SunRoad
type: MusicAlbum
date published: 2003-09-10

SunRoad
type: MusicAlbum
date published: 2003-09-10

Try to Fly
type: MusicAlbum
date published: 2004-06-30

Leyona's Greatest Groovin'
type: MusicAlbum
date published: 2004-07-28

Leyona's Greatest Groovin'
type: MusicAlbum
date published: 2004-07-28

MELODY
type: MusicAlbum
date published: 2009-01-28

MUSICISMAGIC
type: MusicAlbum
date published: 2009-05-13
track: デイドリーム・ビリーバー
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  duration: PT3M23S
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  genre: j-dance
  genre: j-r&b
  genre: kayokyoku
  genre: shibuya-kei
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  additional property: OTSTimestamp
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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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce95d3d8005b494e50c903c55534eac088e83d698bc008e40571439a6abf7d66. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPB600918402.
    date published: 2026-07-04T11:19:20Z
  audio: デイドリーム・ビリーバー
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Key Name
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PATCHWORK
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date published: 2010-03-17
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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
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    date published: 2026-07-19T22:55:52Z
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    additional property: Danceability
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わすれちゃうよ
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date published: 2016-08-03
track: 虹色のきらめき
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    date published: 2016-08-03
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  genre: j-r&b
  genre: kayokyoku
  genre: shibuya-kei
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    date published: 2026-07-19T06:04:14Z
  audio: 虹色のきらめき
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    additional property: Energy
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Bittersweet / I KNOW
type: MusicAlbum
date published: 2018-09-12

Bittersweet / I KNOW
type: MusicAlbum
date published: 2018-09-12

SMMR
type: MusicAlbum
date published: 2018-12-19

SMMR
type: MusicAlbum
date published: 2018-12-19

500マイル / 風をあつめて BESTタッグ
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date published: 2022-03-23