ひかりのなかに
type: MusicGroup
genre: japanese indie
genre: j-rock
popularity: 13
followers: 5493
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x849daa581642a4bb5e06332cd21efc94549902fc820a9e3bd89113b73700efee
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3aa610a-6ab3-4005-bd7e-7ad763b2bd20.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d3aa610a-6ab3-4005-bd7e-7ad763b2bd20.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d3aa610a-6ab3-4005-bd7e-7ad763b2bd20
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additional property: OTSCanonicalRecord
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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 0x849daa581642a4bb5e06332cd21efc94549902fc820a9e3bd89113b73700efee. Chain 2 (Bitcoin): anchored in block 953780 (2026-06-15T12:02:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3aa610a-6ab3-4005-bd7e-7ad763b2bd20.json and https://artists.proofprofile.net/proofs/artist/d3aa610a-6ab3-4005-bd7e-7ad763b2bd20.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T12:02:32Z
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album: 冴えない僕らに灯火を
  type: MusicAlbum
  date published: 2019-05-29
album: 放課後大戦争
  type: MusicAlbum
  date published: 2019-06-26
album: ロンググッドバイ
  type: MusicAlbum
  date published: 2020-02-28
album: ナイトライダー
  type: MusicAlbum
  date published: 2020-04-01
  track: ナイトライダー
    type: MusicRecording
    duration: PT3M52S
    duration ms: 232109
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    by artist: ひかりのなかに
    in album: ナイトライダー
      type: MusicAlbum
      date published: 2020-04-01
    genre: japanese indie
    genre: j-rock
    isrc code: JPJ221901379
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ221901379
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T06:48:00Z
    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 0x69237a6d26c92c2bec8bdcb11f9f1672070aaa7eb4b8596f54e508acbe659661. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPJ221901379.
      date published: 2026-07-17T06:48:00Z
    audio: ナイトライダー
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 187.976
      additional property: Musical Key
        type: PropertyValue
        value: 7
      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: 0.923
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
        type: PropertyValue
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      additional property: Loudness (dB)
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      additional property: Key Name
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album: トーキョー最前線
  type: MusicAlbum
  date published: 2020-04-22
album: ブルーユース
  type: MusicAlbum
  date published: 2020-07-29
  track: ブルーユース
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    duration: PT1M48S
    duration ms: 108424
    explicit: false
    by artist: ひかりのなかに
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      type: MusicAlbum
      date published: 2020-07-29
    genre: japanese indie
    genre: j-rock
    isrc code: JPJ222001505
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    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
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      type: PropertyValue
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T10:47:44Z
    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 0x6e131b67a5afc48d5275be026370b631477680c3ffecb20fbb906dc28b660b3f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPJ222001505.
      date published: 2026-07-03T10:47:44Z
    audio: ブルーユース
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 199.988
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 1
      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: 夏休みのテーマ
album: ムーンライト
album: タイムマシン
album: MOVE ON!
album: まっすぐなままでいい
album: すてきなひとりぼっち
album: pray
album: .demo project
album: 二〇〇一
album: 十九才
album: 彼女
album: 矛と盾
album: Charm
album: ミューズをしんじてる
album: 七月

Energy
type: PropertyValue
value: 0.914

Speechiness
type: PropertyValue
value: 0.037

Acousticness
type: PropertyValue
value: 0

Instrumentalness
type: PropertyValue
value: 0.461

Liveness
type: PropertyValue
value: 0.304

Valence (Positivity)
type: PropertyValue
value: 0.763

Loudness (dB)
type: PropertyValue
value: -3.432

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

夏休みのテーマ
type: MusicAlbum
date published: 2020-08-12

ムーンライト
type: MusicAlbum
date published: 2020-09-02
track: ムーンライト
  type: MusicRecording
  duration: PT3M51S
  duration ms: 231202
  explicit: false
  by artist: ひかりのなかに
  in album: ムーンライト
    type: MusicAlbum
    date published: 2020-09-02
  genre: japanese indie
  genre: j-rock
  isrc code: JPJ222001529
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958955
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    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T03:03:40Z
  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 0x9a990dd72485861ee6813185e535e3b1576c63a1d6c80a0218052c216b8b63fb. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/JPJ222001529.
    date published: 2026-07-21T03:03:40Z
  audio: ムーンライト
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 183.08
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.404
    additional property: Energy
      type: PropertyValue
      value: 0.852
    additional property: Speechiness
      type: PropertyValue
      value: 0.064
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.004
    additional property: Liveness
      type: PropertyValue
      value: 0.188
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.544
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.309
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

タイムマシン
type: MusicAlbum
date published: 2020-10-14

MOVE ON!
type: MusicAlbum
date published: 2021-01-15
track: MOVE ON!
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  duration: PT4M5S
  duration ms: 245959
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  by artist: ひかりのなかに
  in album: MOVE ON!
    type: MusicAlbum
    date published: 2021-01-15
  genre: japanese indie
  genre: j-rock
  isrc code: JPJ222001595
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T16:17:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x87a4d53035b4505d6fd07c129a8a451572cb70452188b91f4a2e1ca4cb763cfc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 956790
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956790
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ222001595
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T12:31:54Z
  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 0x87a4d53035b4505d6fd07c129a8a451572cb70452188b91f4a2e1ca4cb763cfc. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPJ222001595.
    date published: 2026-07-05T12:31:54Z
  audio: MOVE ON!
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.409
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.074
    additional property: Acousticness
      type: PropertyValue
      value: 0.003
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.077
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.699
    additional property: Loudness (dB)
      type: PropertyValue
      value: -2.412
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
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まっすぐなままでいい
type: MusicAlbum
date published: 2021-02-03

すてきなひとりぼっち
type: MusicAlbum
date published: 2023-09-04

pray
type: MusicAlbum
date published: 2023-11-22

.demo project
type: MusicAlbum
date published: 2024-01-13

二〇〇一
type: MusicAlbum
date published: 2024-02-28

十九才
type: MusicAlbum
date published: 2024-04-17

彼女
type: MusicAlbum
date published: 2024-05-01

矛と盾
type: MusicAlbum
date published: 2024-05-29

Charm
type: MusicAlbum
date published: 2024-06-12

ミューズをしんじてる
type: MusicAlbum
date published: 2025-01-11

七月
type: MusicAlbum
date published: 2025-07-29