Sakuragakuin
type: MusicGroup
genre: j-pop
popularity: 25
followers: 17725
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7c37cfd4ecc6d6c18ac3e703b33e15e8cdba8bc41ad9e2269cae58910a90564
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f75358bc-46ca-47b1-9ef1-d98f302729bd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f75358bc-46ca-47b1-9ef1-d98f302729bd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f75358bc-46ca-47b1-9ef1-d98f302729bd
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 → block must exist at that height 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 0xf7c37cfd4ecc6d6c18ac3e703b33e15e8cdba8bc41ad9e2269cae58910a90564. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f75358bc-46ca-47b1-9ef1-d98f302729bd.json and https://artists.proofprofile.net/proofs/artist/f75358bc-46ca-47b1-9ef1-d98f302729bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: 夢に向かって / Hello ! IVY
  type: MusicAlbum
  date published: 2010-12-08
album: ベリシュビッッ
  type: MusicAlbum
  date published: 2011-01-01
  track: ベリシュビッッ
    type: MusicRecording
    duration: PT4M36S
    duration ms: 276586
    explicit: false
    by artist: Sakuragakuin
    in album: ベリシュビッッ
      type: MusicAlbum
      date published: 2011-01-01
    genre: j-pop
    isrc code: JPPO01158170
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T00:49:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x14d08f013dc358cde1f2ae5f7e9f968a5c870c76d3ffcc34e0aaa61603eb97ee
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO01158170
    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 → block OTSBitcoinBlock must exist at that height 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 0x14d08f013dc358cde1f2ae5f7e9f968a5c870c76d3ffcc34e0aaa61603eb97ee. 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/JPPO01158170.
      date published: 2026-07-04T11:19:20Z
    audio: ベリシュビッッ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 172.062
      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: 0.529
      additional property: Energy
        type: PropertyValue
        value: 0.948
      additional property: Speechiness
        type: PropertyValue
        value: 0.098
      additional property: Acousticness
        type: PropertyValue
        value: 0.172
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.228
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.658
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.079
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: さくら学院 2010年度 ～message～
  type: MusicAlbum
  date published: 2011-04-27
  track: FLY AWAY
    type: MusicRecording
    duration: PT4M25S
    duration ms: 265040
    explicit: false
    by artist: Sakuragakuin
    in album: さくら学院 2010年度 ～message～
      type: MusicAlbum
      date published: 2011-04-27
    genre: j-pop
    isrc code: JPTF01100901
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T11:34:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x12b3c627a091286d59d320e5d1e22cd43cddbe9f15d3969a1486778a61392462
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTF01100901
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 → block OTSBitcoinBlock must exist at that height 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 0x12b3c627a091286d59d320e5d1e22cd43cddbe9f15d3969a1486778a61392462. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPTF01100901.
      date published: 2026-07-05T18:48:28Z
    audio: FLY AWAY
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.042
      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: 0.448
      additional property: Energy
        type: PropertyValue
        value: 0.936
      additional property: Speechiness
        type: PropertyValue
        value: 0.174
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.458
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Hello ! IVY
  track: ハッピーバースデー [クッキング部 ミニパティ]
  track: Dear Mr.Socrates [バトン部 Twinklestars]
  track: ド・キ・ド・キ☆モーニング [重音部 BABYMETAL]
  track: 夢に向かって
album: 旅立ちの日に
album: WONDERFUL JOURNEY
album: さくら学院2011年度 ～FRIENDS～
album: オトメゴコロ。
album: 3.a.m [卒業生 武藤彩未、三吉彩花、松井愛莉]
album: See you ．．．
album: よくばりフィーユ [クッキング部 ミニパティ]
album: ピクトグラム
album: ラピカム [バトン部 Twinklestars]
album: 走れ正直者 [帰宅部 sleepiece]
album: FRIENDS
album: WONDERFUL JOURNEY（初回限定盤A）
album: My Graduation Toss
album: My Graduation Toss（初回限定盤B）
album: さくら学院 2012年度 ～My Generation～
album: 顔笑れ！！（初回盤B）
album: 顔笑れ！！
album: 顔笑れ！！（初回盤A）
album: Jump Up ～ちいさな勇気～ （初回盤B）
album: Jump Up ～ちいさな勇気～
album: Jump Up ～ちいさな勇気～ （初回盤A）
album: さくら学院2013年度 ～絆～
album: ハートの地球
album: Heart No Hoshi
album: さくら学院2014年度 ～君に届け～
album: SakuraGakuin 2015 - Kirameki no Kakera -
album: さくら学院 2015年度 ～キラメキの雫～
album: SakuraGakuin 2016 - Yakusoku -
album: さくら学院 2016年度 ～約束～
album: さくら学院 2017年度 ～My Road～
album: SakuraGakuin 2017 - My Road -
album: SakuraGakuin 2018 - Life Iroasenai Hibi -
album: さくら学院 2018年度 ～Life 色褪せない日々～
album: SakuraGakuin 2019 - Story -
album: さくら学院 2019年度 ～ Story ～
album: Thank you…
album: SakuraGakuin 2020 - Thank you -
album: さくら学院 2020年度 ～ Thank you ～

Valence (Positivity)
type: PropertyValue
value: 0.37

Loudness (dB)
type: PropertyValue
value: -2.774

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Hello ! IVY
type: MusicRecording
duration: PT3M32S
duration ms: 212506
explicit: false
by artist: Sakuragakuin
in album: さくら学院 2010年度 ～message～
  type: MusicAlbum
  date published: 2011-04-27
genre: j-pop
isrc code: JPTF01008802
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T23:14:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x962b6d478771f6c9149c8b7061598959e2f61a4e43c54ca6de66d9da55523bd1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958489
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/958489
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTF01008802
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 → block OTSBitcoinBlock must exist at that height 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 0x962b6d478771f6c9149c8b7061598959e2f61a4e43c54ca6de66d9da55523bd1. 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/JPTF01008802.
  date published: 2026-07-18T04:13:26Z
audio: Hello ! IVY
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.016
  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: 0.599
  additional property: Energy
    type: PropertyValue
    value: 0.838
  additional property: Speechiness
    type: PropertyValue
    value: 0.076
  additional property: Acousticness
    type: PropertyValue
    value: 0.002
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.173
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.499
  additional property: Loudness (dB)
    type: PropertyValue
    value: -2.753
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

ハッピーバースデー [クッキング部 ミニパティ]
type: MusicRecording
duration: PT2M55S
duration ms: 175840
explicit: false
by artist: Sakuragakuin
in album: さくら学院 2010年度 ～message～
  type: MusicAlbum
  date published: 2011-04-27
genre: j-pop
isrc code: JPTF01100903
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T03:50:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe6a007aff4995fc010ae8f4c48cf3b25e56002415b02e3bfed7fcaaec0a309d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958362
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/958362
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTF01100903
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T04:32:48Z
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 → block OTSBitcoinBlock must exist at that height 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 0xbe6a007aff4995fc010ae8f4c48cf3b25e56002415b02e3bfed7fcaaec0a309d. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/JPTF01100903.
  date published: 2026-07-17T04:32:48Z
audio: ハッピーバースデー [クッキング部 ミニパティ]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 184.973
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.49
  additional property: Energy
    type: PropertyValue
    value: 0.988
  additional property: Speechiness
    type: PropertyValue
    value: 0.071
  additional property: Acousticness
    type: PropertyValue
    value: 0.132
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.419
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.742
  additional property: Loudness (dB)
    type: PropertyValue
    value: -2.519
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Dear Mr.Socrates [バトン部 Twinklestars]
type: MusicRecording
duration: PT4M1S
duration ms: 241560
explicit: false
by artist: Sakuragakuin
in album: さくら学院 2010年度 ～message～
  type: MusicAlbum
  date published: 2011-04-27
genre: j-pop
isrc code: JPA961000379
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T23:24:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x637b5e2cc04304ad603e9d5bbe2acf70bc20489caf8fa83177f31dc634d0ff8b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956856
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956856
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPA961000379
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 → block OTSBitcoinBlock must exist at that height 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 0x637b5e2cc04304ad603e9d5bbe2acf70bc20489caf8fa83177f31dc634d0ff8b. 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/JPA961000379.
  date published: 2026-07-06T01:25:57Z
audio: Dear Mr.Socrates [バトン部 Twinklestars]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 182.128
  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: 0.403
  additional property: Energy
    type: PropertyValue
    value: 0.938
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.002
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.087
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.854
  additional property: Loudness (dB)
    type: PropertyValue
    value: -2.652
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

ド・キ・ド・キ☆モーニング [重音部 BABYMETAL]
type: MusicRecording
duration: PT3M45S
duration ms: 225840
explicit: false
by artist: Sakuragakuin
in album: さくら学院 2010年度 ～message～
  type: MusicAlbum
  date published: 2011-04-27
genre: j-pop
isrc code: JPTF01100906
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T22:00:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x82490ef24c72ddd97049119afffcbf982bb0cc85ab0093cec596589f3d5e60c0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958461
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/958461
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTF01100906
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T23:18:11Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 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 0x82490ef24c72ddd97049119afffcbf982bb0cc85ab0093cec596589f3d5e60c0. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPTF01100906.
  date published: 2026-07-17T23:18:11Z
audio: ド・キ・ド・キ☆モーニング [重音部 BABYMETAL]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 82.993
  additional property: Musical Key
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夢に向かって
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subject of: OpenTimestamps Proof of Existence
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旅立ちの日に
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WONDERFUL JOURNEY
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さくら学院2011年度 ～FRIENDS～
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    date published: 2026-07-05T18:48:28Z
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オトメゴコロ。
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date published: 2012-04-18

3.a.m [卒業生 武藤彩未、三吉彩花、松井愛莉]
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See you ．．．
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よくばりフィーユ [クッキング部 ミニパティ]
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ピクトグラム
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ラピカム [バトン部 Twinklestars]
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date published: 2012-04-18

走れ正直者 [帰宅部 sleepiece]
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date published: 2012-04-18

FRIENDS
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  subject of: OpenTimestamps Proof of Existence
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WONDERFUL JOURNEY（初回限定盤A）
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My Graduation Toss
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My Graduation Toss（初回限定盤B）
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さくら学院 2012年度 ～My Generation～
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さくら学院 2012年度 ～My Generation～
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  subject of: OpenTimestamps Proof of Existence
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track: ミラクル♪パティフル♪ハンバーガー
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track: マシュマロ色の君と
track: 旅立ちの日に～J－MIX 2012～

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OpenTimestamps Proof of Existence
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date published: 2026-07-05T01:43:49Z

ミラクル♪パティフル♪ハンバーガー
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マシュマロ色の君と
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subject of: OpenTimestamps Proof of Existence
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旅立ちの日に～J－MIX 2012～
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subject of: OpenTimestamps Proof of Existence
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audio: 旅立ちの日に～J－MIX 2012～
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顔笑れ！！（初回盤B）
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date published: 2013-10-09

顔笑れ！！
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date published: 2013-10-09

顔笑れ！！（初回盤A）
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Jump Up ～ちいさな勇気～ （初回盤B）
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Jump Up ～ちいさな勇気～
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Jump Up ～ちいさな勇気～ （初回盤A）
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さくら学院2013年度 ～絆～
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    date published: 2026-07-18T19:27:02Z
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track: 未完成シルエット
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    date published: 2026-07-18T16:22:28Z
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track: Jump Up ～ちいさな勇気～
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OpenTimestamps Proof of Existence
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date published: 2026-07-17T19:47:19Z

Jump Up ～ちいさな勇気～
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さくら学院2013年度 ～絆～
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ハートの地球
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Heart No Hoshi
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さくら学院2014年度 ～君に届け～
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SakuraGakuin 2015 - Kirameki no Kakera -
type: MusicAlbum
date published: 2016-03-03

さくら学院 2015年度 ～キラメキの雫～
type: MusicAlbum
date published: 2016-03-03

SakuraGakuin 2016 - Yakusoku -
type: MusicAlbum
date published: 2017-03-03

さくら学院 2016年度 ～約束～
type: MusicAlbum
date published: 2017-03-03

さくら学院 2017年度 ～My Road～
type: MusicAlbum
date published: 2018-03-03

SakuraGakuin 2017 - My Road -
type: MusicAlbum
date published: 2018-03-03

SakuraGakuin 2018 - Life Iroasenai Hibi -
type: MusicAlbum
date published: 2019-03-03

さくら学院 2018年度 ～Life 色褪せない日々～
type: MusicAlbum
date published: 2019-03-03

SakuraGakuin 2019 - Story -
type: MusicAlbum
date published: 2020-03-03

さくら学院 2019年度 ～ Story ～
type: MusicAlbum
date published: 2020-03-03

Thank you…
type: MusicAlbum
date published: 2020-12-08

Thank you…
type: MusicAlbum
date published: 2020-12-08

SakuraGakuin 2020 - Thank you -
type: MusicAlbum
date published: 2021-08-07

さくら学院 2020年度 ～ Thank you ～
type: MusicAlbum
date published: 2021-08-07