K E I_H A Y A S H I
type: MusicGroup
genre: city pop
genre: japanese indie
genre: j-r&b
popularity: 15
followers: 5309
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7ba803ad124474c4affbc93ae3da8da3c7512eb11a2cdc911882e47b845bcf08
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953827
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953827
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbc4e4db-c478-4aa1-a7d0-376e89245a1f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbc4e4db-c478-4aa1-a7d0-376e89245a1f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dbc4e4db-c478-4aa1-a7d0-376e89245a1f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T19:59:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7ba803ad124474c4affbc93ae3da8da3c7512eb11a2cdc911882e47b845bcf08","name":"K E I_H A Y A S H I","registered_at":"2026-06-15T03:30:54Z","symbol":"NIM0668366","token_address":"0x5124d9331ebceefb68254d82d4b542e3579e65df","type":"artist","uuid":"dbc4e4db-c478-4aa1-a7d0-376e89245a1f"}
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 0x7ba803ad124474c4affbc93ae3da8da3c7512eb11a2cdc911882e47b845bcf08. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbc4e4db-c478-4aa1-a7d0-376e89245a1f.json and https://artists.proofprofile.net/proofs/artist/dbc4e4db-c478-4aa1-a7d0-376e89245a1f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
  text: {"copyright_id":"0x7ba803ad124474c4affbc93ae3da8da3c7512eb11a2cdc911882e47b845bcf08","name":"K E I_H A Y A S H I","registered_at":"2026-06-15T03:30:54Z","symbol":"NIM0668366","token_address":"0x5124d9331ebceefb68254d82d4b542e3579e65df","type":"artist","uuid":"dbc4e4db-c478-4aa1-a7d0-376e89245a1f"}
album: Enough Love
  type: MusicAlbum
  date published: 2019-05-29
album: Enough Love
  type: MusicAlbum
  date published: 2019-05-29
album: Short of Love?
  type: MusicAlbum
  date published: 2019-06-12
album: Short of Love?
  type: MusicAlbum
  date published: 2019-06-12
album: Don't Leave Me Alone
  type: MusicAlbum
  date published: 2019-10-09
album: Don't Leave Me Alone
  type: MusicAlbum
  date published: 2019-10-09
  track: Don't Leave Me Alone
    type: MusicRecording
    duration: PT5M12S
    duration ms: 312545
    explicit: false
    by artist: K E I_H A Y A S H I
    in album: Don't Leave Me Alone
      type: MusicAlbum
      date published: 2019-10-09
    genre: city pop
    genre: japanese indie
    genre: j-r&b
    isrc code: TCJPJ1969678
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T20:53:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x84fd771eb1b70d285720c7617b6f348f318fe674bb07f5ea276153213fcec3f7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPJ1969678
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x84fd771eb1b70d285720c7617b6f348f318fe674bb07f5ea276153213fcec3f7. 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/TCJPJ1969678.
      date published: 2026-07-04T11:19:20Z
    audio: Don't Leave Me Alone
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.971
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.597
      additional property: Energy
        type: PropertyValue
        value: 0.479
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.619
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.085
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.093
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.707
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Step into Love
  type: MusicAlbum
  date published: 2020-02-12
  track: Step into Love
    type: MusicRecording
    duration: PT4M32S
    duration ms: 272598
    explicit: false
    by artist: K E I_H A Y A S H I
    in album: Step into Love
      type: MusicAlbum
      date published: 2020-02-12
    genre: city pop
    genre: japanese indie
    genre: j-r&b
    isrc code: JPS801854315
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T16:42:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x77cf951b6d5660186ad0eb547bcf761a73d97934cd2274fd2ab74e229d922ba0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPS801854315
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T17:49:48Z
    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 0x77cf951b6d5660186ad0eb547bcf761a73d97934cd2274fd2ab74e229d922ba0. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/JPS801854315.
      date published: 2026-07-19T17:49:48Z
    audio: Step into Love
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 92.978
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Just Believe
album: KEI_HAYASH1
album: Love In The Mirror
album: Wasurechaou
album: 忘れちゃおう
album: CANVAS
album: Ichiban chikaku ni iru hito
album: 一番近くにいる人
album: What If
album: Stay Gold
album: 昨日より今日を好きになった
album: アフロディジアック
album: one summer love
album: LOVE
album: 大逆転
album: Night Owl
album: Overthinker

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.634

Energy
type: PropertyValue
value: 0.558

Speechiness
type: PropertyValue
value: 0.034

Acousticness
type: PropertyValue
value: 0.524

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.1

Valence (Positivity)
type: PropertyValue
value: 0.534

Loudness (dB)
type: PropertyValue
value: -7.225

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Just Believe
type: MusicAlbum
date published: 2020-03-25

KEI_HAYASH1
type: MusicAlbum
date published: 2020-04-22
track: Just Believe
  type: MusicRecording
  duration: PT4M19S
  duration ms: 259334
  explicit: false
  by artist: K E I_H A Y A S H I
  in album: KEI_HAYASH1
    type: MusicAlbum
    date published: 2020-04-22
  genre: city pop
  genre: japanese indie
  genre: j-r&b
  isrc code: JPS802000389
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T00:59:50+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x55fe5e09dee385a846d69f205cf31d8d5b7db9e473a5d61c11cea1c0bf5144b9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  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/JPS802000389
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fe5e09dee385a846d69f205cf31d8d5b7db9e473a5d61c11cea1c0bf5144b9. 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/JPS802000389.
    date published: 2026-07-04T10:04:33Z
  audio: Just Believe
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 123.974
    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: 0.739
    additional property: Energy
      type: PropertyValue
      value: 0.694
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.505
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.165
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.676
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.632
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Serenade
  type: MusicRecording
  duration: PT4M26S
  duration ms: 266060
  explicit: false
  by artist: K E I_H A Y A S H I
  in album: KEI_HAYASH1
    type: MusicAlbum
    date published: 2020-04-22
  genre: city pop
  genre: japanese indie
  genre: j-r&b
  isrc code: JPS802000390
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T21:37:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb016ee82aa6512154ea44e274ae1363734d3a3fdf8187987001099820aea78ab
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956856
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956856
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPS802000390
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:25:57Z
  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 0xb016ee82aa6512154ea44e274ae1363734d3a3fdf8187987001099820aea78ab. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPS802000390.
    date published: 2026-07-06T01:25:57Z
  audio: Serenade
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 147.779
    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: 0.558
    additional property: Energy
      type: PropertyValue
      value: 0.356
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.762
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.104
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.316
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.97
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major

Love In The Mirror
type: MusicAlbum
date published: 2020-08-19

Love In The Mirror
type: MusicAlbum
date published: 2020-08-19

Wasurechaou
type: MusicAlbum
date published: 2020-12-09

忘れちゃおう
type: MusicAlbum
date published: 2020-12-09

CANVAS
type: MusicAlbum
date published: 2021-06-02

CANVAS
type: MusicAlbum
date published: 2021-06-02

Ichiban chikaku ni iru hito
type: MusicAlbum
date published: 2021-12-17

一番近くにいる人
type: MusicAlbum
date published: 2021-12-17

What If
type: MusicAlbum
date published: 2022-06-08

What If
type: MusicAlbum
date published: 2022-06-08

Stay Gold
type: MusicAlbum
date published: 2022-07-20

昨日より今日を好きになった
type: MusicAlbum
date published: 2022-08-31

アフロディジアック
type: MusicAlbum
date published: 2023-05-31

one summer love
type: MusicAlbum
date published: 2023-08-02

LOVE
type: MusicAlbum
date published: 2024-01-24

大逆転
type: MusicAlbum
date published: 2025-02-26

Night Owl
type: MusicAlbum
date published: 2025-05-28

Overthinker
type: MusicAlbum
date published: 2025-10-01
track: Overthinker
  type: MusicRecording
  duration: PT3M38S
  duration ms: 218600
  explicit: false
  by artist: K E I_H A Y A S H I
  in album: Overthinker
    type: MusicAlbum
    date published: 2025-10-01
  genre: city pop
  genre: japanese indie
  genre: j-r&b
  isrc code: QMFME2529600
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T13:33:55+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9a6aad051d7ef9fddbc1cf6977843f91be46469db24c17d7cea16a8df9ff68cd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958300
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958300
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2529600
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T16:14:30Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6aad051d7ef9fddbc1cf6977843f91be46469db24c17d7cea16a8df9ff68cd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2529600.
    date published: 2026-07-16T16:14:30Z
  audio: Overthinker
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.946
    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: 0.711
    additional property: Energy
      type: PropertyValue
      value: 0.738
    additional property: Speechiness
      type: PropertyValue
      value: 0.085
    additional property: Acousticness
      type: PropertyValue
      value: 0.036
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.104
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.908
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.556
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major