9nine
type: MusicGroup
genre: anime
genre: c-pop
genre: funkot
genre: j-pop
description: 9nine (pronounced simply "nine") is a Japanese idol group formed of Uki Satake, Sayaka Nishiwaki, and Hirona Murata. Formed in 2005, they are managed by LesPros Entertainment and signed to SME Records
popularity: 26
followers: 10331
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6ad5cd11e901a329ac8fe69528a7a8d3bc3341963a7ae08c57bf645e6a3862c3
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/cdcb2ebe-7232-4b1e-8f11-27d8e253e741.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cdcb2ebe-7232-4b1e-8f11-27d8e253e741.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cdcb2ebe-7232-4b1e-8f11-27d8e253e741
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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 0x6ad5cd11e901a329ac8fe69528a7a8d3bc3341963a7ae08c57bf645e6a3862c3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cdcb2ebe-7232-4b1e-8f11-27d8e253e741.json and https://artists.proofprofile.net/proofs/artist/cdcb2ebe-7232-4b1e-8f11-27d8e253e741.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: first９
  type: MusicAlbum
  date published: 2007-03-21
album: Show TIME
  type: MusicAlbum
  date published: 2008-05-26
album: second ９
  type: MusicAlbum
  date published: 2008-07-09
album: Smile Again / 突然のラブコール
  type: MusicAlbum
  date published: 2009
album: Best9
  type: MusicAlbum
  date published: 2010
album: 9nine
  type: MusicAlbum
  date published: 2010
album: Cross Over
  type: MusicAlbum
  date published: 2010-12-01
  track: Cross Over
    type: MusicRecording
    duration: PT4M47S
    duration ms: 287186
    explicit: false
    by artist: 9nine
    in album: Cross Over
      type: MusicAlbum
      date published: 2010-12-01
    genre: anime
    genre: c-pop
    genre: funkot
    genre: j-pop
    isrc code: JPU901001521
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T17:56:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3ec3116b32742e592bc5adbc7c0af073b8a801fd6211310c7448c897b98b7878
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958316
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958316
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU901001521
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T19:42:29Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec3116b32742e592bc5adbc7c0af073b8a801fd6211310c7448c897b98b7878. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JPU901001521.
      date published: 2026-07-16T19:42:29Z
    audio: Cross Over
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.059
      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: 0.51
      additional property: Energy
        type: PropertyValue
        value: 0.946
      additional property: Speechiness
        type: PropertyValue
        value: 0.062
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.216
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.544
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.871
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Cross Over
  type: MusicAlbum
  date published: 2010-12-01
album: SHINING☆STAR
  type: MusicAlbum
  date published: 2011-03-09
album: SHINING☆STAR
  type: MusicAlbum
  date published: 2011-03-09
album: SHINING☆STAR
  type: MusicAlbum
  date published: 2011-03-09
album: 夏 wanna say love U
  type: MusicAlbum
  date published: 2011-07-20
album: 夏 wanna say love U
  type: MusicAlbum
  date published: 2011-07-20
album: チクタク☆２NITE
  type: MusicAlbum
  date published: 2011-12-21
album: チクタク☆２NITE
  type: MusicAlbum
  date published: 2011-12-21
album: 少女トラベラー
  type: MusicAlbum
  date published: 2012-01-25
album: 少女トラベラー
  type: MusicAlbum
  date published: 2012-01-25
album: 9nine
  type: MusicAlbum
  date published: 2012-03-07
album: SunSunSunrise / Yurutopia
  type: MusicAlbum
  date published: 2012-03-07
album: 9nine
  type: MusicAlbum
  date published: 2012-03-07
album: 流星のくちづけ
  type: MusicAlbum
  date published: 2012-06-20
album: 流星のくちづけ
  type: MusicAlbum
  date published: 2012-06-20
album: イーアル！キョンシー/ブレイブ
  type: MusicAlbum
  date published: 2012-11-14
album: イーアル！キョンシー/ブレイブ
  type: MusicAlbum
  date published: 2012-11-14
album: White Wishes
album: colorful
album: CUE
album: Cue
album: Evolution No.9
album: Re:
album: With You / With Me（TV Size）
album: With You / With Me
album: MAGI9 PLAYLAND
album: Magi9 Playland
album: HAPPY 7 DAYS
album: MY ONLY ONE（TV Size）
album: MY ONLY ONE
album: 愛 愛 愛
album: BEST9
album: Why Don't You Relax?
album: Why don't you RELAX?
album: SunSunSunrise（アニメ｢ザ・リフレクション｣ver.)
album: SunSunSunrise / ゆるとぴあ
album: 国道サマーラブ
album: 願いの花

イーアル！キョンシー/ブレイブ
type: MusicAlbum
date published: 2012-11-14

イーアル！キョンシー/ブレイブ
type: MusicAlbum
date published: 2012-11-14

White Wishes
type: MusicAlbum
date published: 2012-11-20

White Wishes
type: MusicAlbum
date published: 2012-12-12

White Wishes
type: MusicAlbum
date published: 2012-12-12

colorful
type: MusicAlbum
date published: 2013-02-06

colorful
type: MusicAlbum
date published: 2013-02-06

CUE
type: MusicAlbum
date published: 2013-03-13

Cue
type: MusicAlbum
date published: 2013-03-13

CUE
type: MusicAlbum
date published: 2013-03-13
track: colorful
  type: MusicRecording
  duration: PT4M33S
  duration ms: 273466
  explicit: false
  by artist: 9nine
  in album: CUE
    type: MusicAlbum
    date published: 2013-03-13
  genre: anime
  genre: c-pop
  genre: funkot
  genre: j-pop
  isrc code: JPU901202122
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T16:27:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7c2c33340ce04fea933f73b8e805d748167437d7aa5b914dd2f9c2990b42e317
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956738
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956738
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU901202122
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T04:47:21Z
  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 0x7c2c33340ce04fea933f73b8e805d748167437d7aa5b914dd2f9c2990b42e317. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPU901202122.
    date published: 2026-07-05T04:47:21Z
  audio: colorful
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 136.91
    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: 0.686
    additional property: Energy
      type: PropertyValue
      value: 0.894
    additional property: Speechiness
      type: PropertyValue
      value: 0.07
    additional property: Acousticness
      type: PropertyValue
      value: 0.018
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.086
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.693
    additional property: Loudness (dB)
      type: PropertyValue
      value: -2.919
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Evolution No.9
type: MusicAlbum
date published: 2013-06-12

Evolution No.9
type: MusicAlbum
date published: 2013-06-12

Re:
type: MusicAlbum
date published: 2013-11-13

Re:
type: MusicAlbum
date published: 2013-11-20

With You / With Me（TV Size）
type: MusicAlbum
date published: 2014-02-05

With You / With Me
type: MusicAlbum
date published: 2014-03-05

With You / With Me
type: MusicAlbum
date published: 2014-03-12

With You / With Me
type: MusicAlbum
date published: 2014-03-12

MAGI9 PLAYLAND
type: MusicAlbum
date published: 2014-06-18
track: Re:
  type: MusicRecording
  duration: PT4M56S
  duration ms: 296200
  explicit: false
  by artist: 9nine
  in album: MAGI9 PLAYLAND
    type: MusicAlbum
    date published: 2014-06-18
  genre: anime
  genre: c-pop
  genre: funkot
  genre: j-pop
  isrc code: JPU901301255
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-14T22:28:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9d157fa1bd5ba8db5364710a46cb2d6eadcfd7673d7571f819a3a45806c4812e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958074
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958074
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU901301255
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-14T22:45:25Z
  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 0x9d157fa1bd5ba8db5364710a46cb2d6eadcfd7673d7571f819a3a45806c4812e. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/JPU901301255.
    date published: 2026-07-14T22:45:25Z
  audio: Re:
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.513
    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: 0.56
    additional property: Energy
      type: PropertyValue
      value: 0.949
    additional property: Speechiness
      type: PropertyValue
      value: 0.096
    additional property: Acousticness
      type: PropertyValue
      value: 0.015
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.072
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.368
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.797
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

MAGI9 PLAYLAND
type: MusicAlbum
date published: 2014-06-18

Magi9 Playland
type: MusicAlbum
date published: 2014-06-18

HAPPY 7 DAYS
type: MusicAlbum
date published: 2015-06-17

HAPPY 7 DAYS
type: MusicAlbum
date published: 2015-06-17

MY ONLY ONE（TV Size）
type: MusicAlbum
date published: 2015-07-15

MY ONLY ONE
type: MusicAlbum
date published: 2015-08-26

MY ONLY ONE
type: MusicAlbum
date published: 2015-08-26

愛 愛 愛
type: MusicAlbum
date published: 2016-04-07

愛 愛 愛
type: MusicAlbum
date published: 2016-05-03

愛 愛 愛
type: MusicAlbum
date published: 2016-05-03

BEST9
type: MusicAlbum
date published: 2016-06-22

BEST9
type: MusicAlbum
date published: 2016-06-22

Why Don't You Relax?
type: MusicAlbum
date published: 2017-05-03

Why don't you RELAX?
type: MusicAlbum
date published: 2017-05-03

Why don't you RELAX?
type: MusicAlbum
date published: 2017-05-03

SunSunSunrise（アニメ｢ザ・リフレクション｣ver.)
type: MusicAlbum
date published: 2017-07-23

SunSunSunrise（アニメ｢ザ・リフレクション｣ver.)
type: MusicAlbum
date published: 2017-07-23

SunSunSunrise / ゆるとぴあ
type: MusicAlbum
date published: 2017-08-16

SunSunSunrise / ゆるとぴあ
type: MusicAlbum
date published: 2017-08-16

国道サマーラブ
type: MusicAlbum
date published: 2018-07-27

国道サマーラブ
type: MusicAlbum
date published: 2018-07-27

国道サマーラブ
type: MusicAlbum
date published: 2018-08-03

願いの花
type: MusicAlbum
date published: 2018-10-15

願いの花
type: MusicAlbum
date published: 2018-10-15

願いの花
type: MusicAlbum
date published: 2018-10-15