NGT48
type: MusicGroup
genre: c-pop
genre: j-pop
popularity: 26
followers: 40281
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f7e08c43dd019dda2c70d8a23a74891a0b8c34fa004b44bd26b7b828026327a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953423
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953423
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c0a5601-b70f-4c31-99d7-d999270d5080.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4c0a5601-b70f-4c31-99d7-d999270d5080.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4c0a5601-b70f-4c31-99d7-d999270d5080
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T21:20:00Z
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 0x9f7e08c43dd019dda2c70d8a23a74891a0b8c34fa004b44bd26b7b828026327a. 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/4c0a5601-b70f-4c31-99d7-d999270d5080.json and https://artists.proofprofile.net/proofs/artist/4c0a5601-b70f-4c31-99d7-d999270d5080.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
album: 一瞬の花火 (Special Edition)
  type: MusicAlbum
  date published: 2024-08-28
  track: 一瞬の花火
    type: MusicRecording
    duration: PT4M49S
    duration ms: 289119
    explicit: false
    by artist: NGT48
    in album: 一瞬の花火 (Special Edition)
      type: MusicAlbum
      date published: 2024-08-28
    isrc code: JPPO02403277
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-11T23:02:55+00:00
  track: 季節外れのアイスレモネード
    type: MusicRecording
    duration: PT4M50S
    duration ms: 290919
    explicit: false
    by artist: NGT48
    in album: 一瞬の花火 (Special Edition)
      type: MusicAlbum
      date published: 2024-08-28
    isrc code: JPPO02403278
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-26T10:14:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe2714dba9719f4151ae6054463bdbbff226b747d5cf138f42058bad3f48164b2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956349
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/956349
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02403278
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T11:34:59Z
    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 0xe2714dba9719f4151ae6054463bdbbff226b747d5cf138f42058bad3f48164b2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPPO02403278.
      date published: 2026-07-02T11:34:59Z
  track: もう一度 手を繋ぎたい
    type: MusicRecording
    duration: PT4M17S
    duration ms: 257538
    explicit: false
    by artist: NGT48
    in album: 一瞬の花火 (Special Edition)
      type: MusicAlbum
      date published: 2024-08-28
    isrc code: JPPO02403279
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-28T00:38:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbe43a2e0c87957dd94e7ef98c35c686d061b80f3bed694976b09aa752ff3bd7d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/956375
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02403279
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    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 0xbe43a2e0c87957dd94e7ef98c35c686d061b80f3bed694976b09aa752ff3bd7d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPPO02403279.
      date published: 2026-07-02T16:51:38Z
  track: 涙が枯れるまでそばにいる
    type: MusicRecording
    duration: PT4M5S
    duration ms: 245107
    explicit: false
    by artist: NGT48
    in album: 一瞬の花火 (Special Edition)
      type: MusicAlbum
      date published: 2024-08-28
    isrc code: JPPO02403280
album: 一瞬の花火
  type: MusicAlbum
  date published: 2024-07-22
  track: 一瞬の花火
    type: MusicRecording
    duration: PT4M48S
    duration ms: 288119
    explicit: false
    by artist: NGT48
    in album: 一瞬の花火
      type: MusicAlbum
      date published: 2024-07-22
    isrc code: JPPO02403277
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-11T23:02:55+00:00
album: あのさ、いや別に… (Special Edition)
  type: MusicAlbum
  date published: 2023-08-02
  track: あのさ、いや別に…
    type: MusicRecording
    duration: PT4M28S
    duration ms: 268453
    explicit: false
    by artist: NGT48
    in album: あのさ、いや別に… (Special Edition)
      type: MusicAlbum
      date published: 2023-08-02
    isrc code: JPPO02302242
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-09T02:05:53+00:00
  track: 僕はもう少年ではなくなった
    type: MusicRecording
    duration: PT5M21S
    duration ms: 321020
    explicit: false
    by artist: NGT48
    in album: あのさ、いや別に… (Special Edition)
      type: MusicAlbum
      date published: 2023-08-02
    isrc code: JPPO02302243
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
  track: 角田浜にて
  track: 命を懸けろ！
album: あのさ、いや別に…
album: 渡り鳥たちに空は見えない (Special Edition)
album: 渡り鳥たちに空は見えない
album: 未完成の未来 (New Songs Edition)
album: しそうでしないキス
album: ポンコツな君が好きだ (Special Edition)
album: ポンコツな君が好きだ
album: Awesome (Special Edition)
album: Awesome
album: シャーベットピンク (Special Edition)
album: 世界の人へ（happy machine Remix）
album: 春はどこから来るのか？ (Type-C)
album: 春はどこから来るのか？ (Type-B)
album: 春はどこから来るのか？ (Type-A)
album: 春はどこから来るのか？
album: 世界の人へ (Special Edition)
album: 春はどこから来るのか？ (Special Edition)
album: 世界はどこまで青空なのか？ (Type-C)
album: 世界はどこまで青空なのか？ (Type-B)
album: 世界はどこまで青空なのか？ (Type-A)
album: 世界はどこまで青空なのか？
album: 青春時計（Type-C）
album: 青春時計（Type-B）
album: 青春時計（Type-A）
album: 青春時計
album: 世界はどこまで青空なのか？（Special Edition）
album: 青春時計（フランスパン Remix by happy machine）
album: 青春時計（豆腐メンタル Remix by tofubeats）
album: 青春時計 (Special Edition)
album: 君はメロディー<Type D>(初回限定盤)
album: シュートサイン<Type D>
album: 翼はいらない<劇場盤>
album: ジャーバージャ Type D

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T00:58:08+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x54b85a1b2edf5a7d76c526f6d049a3760e3892cc65dcccc05acf0e742cdfedcf

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02302243

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b85a1b2edf5a7d76c526f6d049a3760e3892cc65dcccc05acf0e742cdfedcf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPPO02302243.
date published: 2026-07-08T03:20:19Z

角田浜にて
type: MusicRecording
duration: PT4M59S
duration ms: 299640
explicit: false
by artist: NGT48
in album: あのさ、いや別に… (Special Edition)
  type: MusicAlbum
  date published: 2023-08-02
isrc code: JPPO02302244

命を懸けろ！
type: MusicRecording
duration: PT3M34S
duration ms: 214915
explicit: false
by artist: NGT48
in album: あのさ、いや別に… (Special Edition)
  type: MusicAlbum
  date published: 2023-08-02
isrc code: JPPO02302245

あのさ、いや別に…
type: MusicAlbum
date published: 2023-07-26
track: あのさ、いや別に…
  type: MusicRecording
  duration: PT4M28S
  duration ms: 268453
  explicit: false
  by artist: NGT48
  in album: あのさ、いや別に…
    type: MusicAlbum
    date published: 2023-07-26
  isrc code: JPPO02302242
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T02:05:53+00:00

渡り鳥たちに空は見えない (Special Edition)
type: MusicAlbum
date published: 2022-12-28
track: 渡り鳥たちに空は見えない
  type: MusicRecording
  duration: PT4M53S
  duration ms: 293613
  explicit: false
  by artist: NGT48
  in album: 渡り鳥たちに空は見えない (Special Edition)
    type: MusicAlbum
    date published: 2022-12-28
  isrc code: JPPO02204775
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-12T00:15:11+00:00
track: やさしさの重さ
  type: MusicRecording
  duration: PT4M12S
  duration ms: 252088
  explicit: false
  by artist: NGT48
  in album: 渡り鳥たちに空は見えない (Special Edition)
    type: MusicAlbum
    date published: 2022-12-28
  isrc code: JPPO02204776
track: キスをちょうだい
  type: MusicRecording
  duration: PT4M8S
  duration ms: 248475
  explicit: false
  by artist: NGT48
  in album: 渡り鳥たちに空は見えない (Special Edition)
    type: MusicAlbum
    date published: 2022-12-28
  isrc code: JPPO02204781
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T19:41:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb0b08581b8ea2d93db00d72ebf3ef790e44f7ac14f7355e140a6ffa09f0f7ebb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02204781
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0xb0b08581b8ea2d93db00d72ebf3ef790e44f7ac14f7355e140a6ffa09f0f7ebb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPPO02204781.
    date published: 2026-07-08T03:20:19Z
track: チョコレートで眠れない
  type: MusicRecording
  duration: PT4M48S
  duration ms: 288415
  explicit: false
  by artist: NGT48
  in album: 渡り鳥たちに空は見えない (Special Edition)
    type: MusicAlbum
    date published: 2022-12-28
  isrc code: JPPO02204779
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T19:02:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x15ffb60bf964269cdd05d53003570ea6db4e67314714c0f21ca81a2c4fd93364
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02204779
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0x15ffb60bf964269cdd05d53003570ea6db4e67314714c0f21ca81a2c4fd93364. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPPO02204779.
    date published: 2026-07-08T03:20:19Z

渡り鳥たちに空は見えない
type: MusicAlbum
date published: 2022-12-12
track: 渡り鳥たちに空は見えない
  type: MusicRecording
  duration: PT4M53S
  duration ms: 293613
  explicit: false
  by artist: NGT48
  in album: 渡り鳥たちに空は見えない
    type: MusicAlbum
    date published: 2022-12-12
  isrc code: JPPO02204775
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-12T00:15:11+00:00

未完成の未来 (New Songs Edition)
type: MusicAlbum
date published: 2022-06-29
track: しそうでしないキス
  type: MusicRecording
  duration: PT4M23S
  duration ms: 263283
  explicit: false
  by artist: NGT48
  in album: 未完成の未来 (New Songs Edition)
    type: MusicAlbum
    date published: 2022-06-29
  isrc code: JPPO02202209
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-19T01:07:53+00:00
track: 昨日よりも今日 今日よりも明日
  type: MusicRecording
  duration: PT4M13S
  duration ms: 253155
  explicit: false
  by artist: NGT48
  in album: 未完成の未来 (New Songs Edition)
    type: MusicAlbum
    date published: 2022-06-29
  isrc code: JPPO02202212
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T09:15:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5de6cd61d0174f40154683106d6fcaa3d324230512807d422a8325f5ddfb1d4f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957048
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957048
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02202212
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T14:18:56Z
  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 0x5de6cd61d0174f40154683106d6fcaa3d324230512807d422a8325f5ddfb1d4f. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/JPPO02202212.
    date published: 2026-07-07T14:18:56Z
track: どうしようもないこと
  type: MusicRecording
  duration: PT4M12S
  duration ms: 252768
  explicit: false
  by artist: NGT48
  in album: 未完成の未来 (New Songs Edition)
    type: MusicAlbum
    date published: 2022-06-29
  isrc code: JPPO02202213
track: 自然渋滞
  type: MusicRecording
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d44855fd0678c7cea8b95b8ceaddbfd32b94a53a0b028322919b28418bd54b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPPO02202214.
    date published: 2026-07-02T16:51:38Z
track: 好きなんて・・・
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track: 片想いのままじゃ終われない
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しそうでしないキス
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track: しそうでしないキス
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ポンコツな君が好きだ (Special Edition)
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track: ポンコツな君が好きだ
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track: 私が一番言いたかったこと
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track: 僕らのトチオンガー
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track: 情熱の電源
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ポンコツな君が好きだ
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track: ポンコツな君が好きだ
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    type: MusicAlbum
    date published: 2021-12-14
  isrc code: JPPO02104435
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    type: PropertyValue
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Awesome (Special Edition)
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track: Awesome
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track: はっきり言って欲しい
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track: ラーメンワンダーランド
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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 → 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
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    date published: 2026-07-08T03:22:41Z
track: 踵を鳴らせ！
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Awesome
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シャーベットピンク (Special Edition)
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T13:32:09Z
track: 絶望の後で
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2083f0e36a5a53bddfa98715949e3bbfe4d56d6749de8244b2b0c8c4df485c0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPPO02001809.
    date published: 2026-07-02T11:34:59Z
track: 後悔ばっかり
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:20:19Z
track: 嫌いなのかもしれない
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世界の人へ（happy machine Remix）
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    date published: 2018-12-28
  isrc code: JPU901803959

春はどこから来るのか？ (Type-C)
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date published: 2018-10-02
track: 春はどこから来るのか？
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track: 蒸発した水分
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track: Whatcha Gonna Do
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track: 春はどこから来るのか？off vocal ver.
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track: 蒸発した水分 off vocal ver.
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track: Whatcha Gonna Do off vocal ver.
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  duration ms: 260532
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春はどこから来るのか？ (Type-B)
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date published: 2018-10-02
track: 春はどこから来るのか？
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track: 蒸発した水分
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track: あとで
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track: 春はどこから来るのか？off vocal ver.
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track: 蒸発した水分 off vocal ver.
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track: あとで off vocal ver.
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    date published: 2018-10-02

春はどこから来るのか？ (Type-A)
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track: 春はどこから来るのか？
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track: 蒸発した水分
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track: 私のために
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  isrc code: JPU901800872
track: 春はどこから来るのか？off vocal ver.
  type: MusicRecording
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track: 蒸発した水分 off vocal ver.
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track: 私のために off vacal ver.
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春はどこから来るのか？
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date published: 2018-10-02
track: 春はどこから来るのか？
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track: 反省ソーダ
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track: 春はどこから来るのか？off vocal ver.
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春はどこから来るのか？ (Special Edition)
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世界はどこまで青空なのか？ (Type-C)
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track: 空き缶パンク off vocal ver.
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    date published: 2017-12-13
track: 純情よろしく off vocal ver.
  type: MusicRecording
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  duration ms: 293506
  explicit: false
  by artist: NGT48
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    type: MusicAlbum
    date published: 2017-12-13

青春時計（Type-A）
type: MusicAlbum
date published: 2017-12-13
track: 青春時計
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  explicit: false
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    date published: 2017-12-13
track: 空き缶パンク
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  by artist: NGT48
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    date published: 2017-12-13
track: 出陣
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    date published: 2017-12-13
track: 青春時計 off vocal ver.
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track: 空き缶パンク off vocal ver.
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    date published: 2017-12-13
track: 出陣 off vocal ver.
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    date published: 2017-12-13

青春時計
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date published: 2017-12-13
track: 青春時計
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track: 空き缶パンク
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    type: MusicAlbum
    date published: 2017-12-13
track: 下の名で呼べたのは・・・
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    type: MusicAlbum
    date published: 2017-12-13
track: 青春時計 off vocal ver.
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  in album: 青春時計
    type: MusicAlbum
    date published: 2017-12-13
track: 空き缶パンク off vocal ver.
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  by artist: NGT48
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    type: MusicAlbum
    date published: 2017-12-13
track: 下の名で呼べたのは・・・ off vocal ver.
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    date published: 2017-12-13

世界はどこまで青空なのか？（Special Edition）
type: MusicAlbum
date published: 2017-12-05
track: 世界はどこまで青空なのか？
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    date published: 2017-12-05
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track: 僕の涙は流れない
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    type: MusicAlbum
    date published: 2017-12-05
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  additional property: OTSVerificationAPI
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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 → 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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597d65fd13584be724a1d93b0ee256a6992a20606cb7f4a6b3fddba3473bdf55. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPU901703514.
    date published: 2026-07-02T16:51:38Z
track: 大人になる前に
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    type: MusicAlbum
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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 → 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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab1ff3f2e3215ba998331ccaa46739ef4459e84221642051a9946df5c91881a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPU901703515.
    date published: 2026-07-06T07:16:32Z
track: 抱いてやっちゃ桜木町
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  isrc code: JPU901703519
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bfea2e8d38778899954afb9772806e500230a13971ddb55c5d31d05ef7e9e3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPU901703519.
    date published: 2026-07-08T08:56:20Z
track: ナニカガイル
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  isrc code: JPU901703521
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track: ぎこちない通学電車
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  isrc code: JPU901703523

青春時計（フランスパン Remix by happy machine）
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date published: 2017-08-23
track: 青春時計（フランスパン Remix by happy machine）
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    type: MusicAlbum
    date published: 2017-08-23
  isrc code: JPU901702354

青春時計（豆腐メンタル Remix by tofubeats）
type: MusicAlbum
date published: 2017-07-24
track: 青春時計（豆腐メンタル Remix by tofubeats）
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  duration: PT4M13S
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    date published: 2017-07-24
  isrc code: JPU901702214

青春時計 (Special Edition)
type: MusicAlbum
date published: 2017-04-11
track: 青春時計
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  by artist: NGT48
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    type: MusicAlbum
    date published: 2017-04-11
  isrc code: JPU901700791
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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track: 空き缶パンク
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  duration ms: 269026
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    type: MusicAlbum
    date published: 2017-04-11
  isrc code: JPU901700792
track: 出陣
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  duration ms: 348000
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  by artist: NGT48
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    type: MusicAlbum
    date published: 2017-04-11
  isrc code: JPU901700793
track: 純情よろしく
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  duration: PT4M54S
  duration ms: 294786
  explicit: false
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    type: MusicAlbum
    date published: 2017-04-11
  isrc code: JPU901700797
track: 暗闇求む
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  explicit: false
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    type: MusicAlbum
    date published: 2017-04-11
  isrc code: JPU901700799
track: 下の名で呼べたのは・・・
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  duration: PT4M51S
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  explicit: false
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    type: MusicAlbum
    date published: 2017-04-11
  isrc code: JPU901700801
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  additional property: OTSVerificationAPI
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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 → 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 0x978f8b14e0c9efb844d8e830ae8b87e11b675e5ed3591d937d334ae6ea0435c2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPU901700801.
    date published: 2026-07-08T03:22:41Z

君はメロディー<Type D>(初回限定盤)
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date published: 2016-03-09
track: 君はメロディー
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
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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 → 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 0xe36f37d25c273ecec441fa7286b21b824301e457e5e26cb53d3a37f1987b542b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPKI01610771.
    date published: 2026-07-02T05:09:12Z
track: LALALAメッセージ
  type: MusicRecording
  duration: PT5M12S
  duration ms: 312853
  explicit: false
  by artist: AKB48
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    type: MusicAlbum
    date published: 2016-03-09
track: Maxとき315号
  type: MusicRecording
  duration: PT4M45S
  duration ms: 285373
  explicit: false
  by artist: NGT48
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    type: MusicAlbum
    date published: 2016-03-09
  isrc code: JPKI01610783
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T00:21:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbf20720e272bc3df389ab672538e93ff467915e48e62f697182d466b9ebbb50a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  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 0xbf20720e272bc3df389ab672538e93ff467915e48e62f697182d466b9ebbb50a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPKI01610783.
    date published: 2026-06-13T13:32:09Z
track: 君はメロディー off vocal ver.
  type: MusicRecording
  duration: PT4M44S
  duration ms: 284893
  explicit: false
  by artist: AKB48
  in album: 君はメロディー<Type D>(初回限定盤)
    type: MusicAlbum
    date published: 2016-03-09
track: LALALAメッセージ off vocal ver.
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  duration ms: 312840
  explicit: false
  by artist: AKB48
  in album: 君はメロディー<Type D>(初回限定盤)
    type: MusicAlbum
    date published: 2016-03-09
track: Maxとき315号 off vocal ver.
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  duration: PT4M43S
  duration ms: 283680
  explicit: false
  by artist: NGT48
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    type: MusicAlbum
    date published: 2016-03-09
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKI01610784
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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 → 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 0xc205cf8927b1cd6a26cc457dd0e30003a6fb75943189f22035380f348c81267a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPKI01610784.
    date published: 2026-07-08T03:22:41Z

シュートサイン<Type D>
type: MusicAlbum
date published: 2017-03-15
track: シュートサイン
  type: MusicRecording
  duration: PT4M37S
  duration ms: 277493
  explicit: false
  by artist: AKB48
  in album: シュートサイン<Type D>
    type: MusicAlbum
    date published: 2017-03-15
  isrc code: JPKI01710976
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T14:57:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x67fea3919d221312885c545c0440f87030cafd66fe521cbce278c79a6bfd1bba
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKI01710976
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  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 0x67fea3919d221312885c545c0440f87030cafd66fe521cbce278c79a6bfd1bba. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPKI01710976.
    date published: 2026-07-08T08:56:20Z
track: アクシデント中
  type: MusicRecording
  duration: PT4M47S
  duration ms: 287533
  explicit: false
  by artist: AKB48
  in album: シュートサイン<Type D>
    type: MusicAlbum
    date published: 2017-03-15
  isrc code: JPKI01710994
track: みどりと森の運動公園
  type: MusicRecording
  duration: PT4M19S
  duration ms: 259786
  explicit: false
  by artist: NGT48
  in album: シュートサイン<Type D>
    type: MusicAlbum
    date published: 2017-03-15
  isrc code: JPKI01710995
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-26T06:03:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x56d6454e173fe27bb76a3c3f0486ea5d407b2d2a283441ae4a28e437af406544
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKI01710995
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x56d6454e173fe27bb76a3c3f0486ea5d407b2d2a283441ae4a28e437af406544. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPKI01710995.
    date published: 2026-07-02T03:55:08Z
track: シュートサイン off vocal ver.
  type: MusicRecording
  duration: PT4M37S
  duration ms: 277280
  explicit: false
  by artist: AKB48
  in album: シュートサイン<Type D>
    type: MusicAlbum
    date published: 2017-03-15
track: アクシデント中 off vocal ver.
  type: MusicRecording
  duration: PT4M47S
  duration ms: 287120
  explicit: false
  by artist: AKB48
  in album: シュートサイン<Type D>
    type: MusicAlbum
    date published: 2017-03-15
track: みどりと森の運動公園 off vocal ver.
  type: MusicRecording
  duration: PT4M18S
  duration ms: 258120
  explicit: false
  by artist: NGT48
  in album: シュートサイン<Type D>
    type: MusicAlbum
    date published: 2017-03-15

翼はいらない<劇場盤>
type: MusicAlbum
date published: 2016-06-01
track: 翼はいらない
  type: MusicRecording
  duration: PT4M35S
  duration ms: 275546
  explicit: false
  by artist: AKB48
  in album: 翼はいらない<劇場盤>
    type: MusicAlbum
    date published: 2016-06-01
  isrc code: JPKI01612752
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-23T20:37:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x12855a66cbc7a19ffa59214a81662d79ef48f4406bd912c8560c00be9be306f1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKI01612752
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0x12855a66cbc7a19ffa59214a81662d79ef48f4406bd912c8560c00be9be306f1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPKI01612752.
    date published: 2026-07-08T03:20:19Z
track: 哀愁のトランペッター(Team K)
  type: MusicRecording
  duration: PT4M17S
  duration ms: 257333
  explicit: false
  by artist: AKB48
  in album: 翼はいらない<劇場盤>
    type: MusicAlbum
    date published: 2016-06-01
  isrc code: JPKI01612761
track: 君はどこにいる?
  type: MusicRecording
  duration: PT4M21S
  duration ms: 261933
  explicit: false
  by artist: NGT48
  in album: 翼はいらない<劇場盤>
    type: MusicAlbum
    date published: 2016-06-01
  isrc code: JPKI01612765
track: 翼はいらない off vocal ver.
  type: MusicRecording
  duration: PT4M35S
  duration ms: 275346
  explicit: false
  by artist: AKB48
  in album: 翼はいらない<劇場盤>
    type: MusicAlbum
    date published: 2016-06-01
track: 哀愁のトランペッター(Team K) off vocal ver.
  type: MusicRecording
  duration: PT4M17S
  duration ms: 257333
  explicit: false
  by artist: AKB48
  in album: 翼はいらない<劇場盤>
    type: MusicAlbum
    date published: 2016-06-01
track: 君はどこにいる? off vocal ver.
  type: MusicRecording
  duration: PT4M20S
  duration ms: 260266
  explicit: false
  by artist: NGT48
  in album: 翼はいらない<劇場盤>
    type: MusicAlbum
    date published: 2016-06-01

ジャーバージャ Type D
type: MusicAlbum
date published: 2018-03-14
track: ジャーバージャ
  type: MusicRecording
  duration: PT4M17S
  duration ms: 257613
  explicit: false
  by artist: AKB48
  in album: ジャーバージャ Type D
    type: MusicAlbum
    date published: 2018-03-14
track: Position
  type: MusicRecording
  duration: PT4M53S
  duration ms: 293306
  explicit: false
  by artist: AKB48
  in album: ジャーバージャ Type D
    type: MusicAlbum
    date published: 2018-03-14
  isrc code: JPKI01812086
track: 友達でいましょう
  type: MusicRecording
  duration: PT4M4S
  duration ms: 244853
  explicit: false
  by artist: NGT48
  in album: ジャーバージャ Type D
    type: MusicAlbum
    date published: 2018-03-14
  isrc code: JPKI01812087
track: ジャーバージャ off vocal ver.
  type: MusicRecording
  duration: PT4M17S
  duration ms: 257613
  explicit: false
  by artist: AKB48
  in album: ジャーバージャ Type D
    type: MusicAlbum
    date published: 2018-03-14
track: Position off vocal ver.
  type: MusicRecording
  duration: PT4M53S
  duration ms: 293320
  explicit: false
  by artist: AKB48
  in album: ジャーバージャ Type D
    type: MusicAlbum
    date published: 2018-03-14
track: 友達でいましょう off vocal ver.
  type: MusicRecording
  duration: PT4M3S
  duration ms: 243280
  explicit: false
  by artist: NGT48
  in album: ジャーバージャ Type D
    type: MusicAlbum
    date published: 2018-03-14