れん
type: MusicGroup
genre: j-pop
popularity: 51
followers: 88842
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe0a772f8d4e7d0adfce8f7459a1910260a7208c005d26ff14881fd305841ebdb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c543909c-221b-4005-9f27-9b50e0336562.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c543909c-221b-4005-9f27-9b50e0336562.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c543909c-221b-4005-9f27-9b50e0336562
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe0a772f8d4e7d0adfce8f7459a1910260a7208c005d26ff14881fd305841ebdb","name":"れん","registered_at":"2026-06-12T09:15:36Z","symbol":"NIM0253245","token_address":"0x9d2bda0fb9af49df641d021faa2d059a9c3ae20d","type":"artist","uuid":"c543909c-221b-4005-9f27-9b50e0336562"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a772f8d4e7d0adfce8f7459a1910260a7208c005d26ff14881fd305841ebdb. 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/c543909c-221b-4005-9f27-9b50e0336562.json and https://artists.proofprofile.net/proofs/artist/c543909c-221b-4005-9f27-9b50e0336562.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xe0a772f8d4e7d0adfce8f7459a1910260a7208c005d26ff14881fd305841ebdb","name":"れん","registered_at":"2026-06-12T09:15:36Z","symbol":"NIM0253245","token_address":"0x9d2bda0fb9af49df641d021faa2d059a9c3ae20d","type":"artist","uuid":"c543909c-221b-4005-9f27-9b50e0336562"}
album: 嫌いになれない
  type: MusicAlbum
  date published: 2021-09-15
album: Promise
  type: MusicAlbum
  date published: 2021-12-01
album: 赤
  type: MusicAlbum
  date published: 2022-01-19
album: きみのうた
  type: MusicAlbum
  date published: 2022-03-23
album: 氷解
  type: MusicAlbum
  date published: 2022-05-04
album: First Love
  type: MusicAlbum
  date published: 2022-06-15
album: ゆらせ
  type: MusicAlbum
  date published: 2022-08-24
album: 最低
  type: MusicAlbum
  date published: 2022-10-12
album: 空っぽ
  type: MusicAlbum
  date published: 2022-12-07
album: 緋寒桜
  type: MusicAlbum
  date published: 2023-02-01
album: 変わりゆく季節
  type: MusicAlbum
  date published: 2023-04-05
album: フシアワセ
  type: MusicAlbum
  date published: 2023-05-31
album: 正論さん
  type: MusicAlbum
  date published: 2023-07-12
album: マジックアワー
  type: MusicAlbum
  date published: 2023-09-06
album: セルフライナーノーツ
  type: MusicAlbum
  date published: 2023-10-18
album: 最低 (Acoustic ver.)
  type: MusicAlbum
  date published: 2023-10-18
album: 通り雨
  type: MusicAlbum
  date published: 2023-11-22
album: 雪庇
  type: MusicAlbum
  date published: 2024-03-27
album: 泡沫雪(Awayuki)
  type: MusicAlbum
  date published: 2024-05-10
album: FLASH BACK
  type: MusicAlbum
  date published: 2024-07-17
album: 一切合切
  type: MusicAlbum
  date published: 2024-09-25
album: Dulcet
  type: MusicAlbum
  date published: 2024-11-13
album: 淡色の幸せ
  type: MusicAlbum
  date published: 2025-04-17
  track: 淡色の幸せ
    type: MusicRecording
    duration: PT3M5S
    duration ms: 185001
    explicit: false
    by artist: れん
    in album: 淡色の幸せ
      type: MusicAlbum
      date published: 2025-04-17
    genre: j-pop
    isrc code: JPTF02508401
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T22:38:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x425485d52f01b790377b497ba6f6f337020a1324f13d2bebf8387483a0cdca87
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957770
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957770
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTF02508401
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T23:17:00Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425485d52f01b790377b497ba6f6f337020a1324f13d2bebf8387483a0cdca87. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPTF02508401.
      date published: 2026-07-12T23:17:00Z
    audio: 淡色の幸せ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.996
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.612
      additional property: Energy
        type: PropertyValue
        value: 0.863
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.019
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.353
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.598
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.629
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 盾愛
  type: MusicAlbum
  date published: 2025-06-06
album: Last Parade
  type: MusicAlbum
  date published: 2025-11-14
track: 好きだから。
track: bathroom

好きだから。
type: MusicRecording
duration: PT4M58S
duration ms: 298663
explicit: false
by artist: 『ユイカ』
by artist: れん
in album: 好きだから。
  type: MusicAlbum
  date published: 2021-11-12
genre: japanese-teen-pop
isrc code: JPPO02103762
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T00:35:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4ba82e829ba4593b0a59aecadd0aa9a774e521bd321cee2f558a5bbb5f997d76
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO02103762
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 → 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba82e829ba4593b0a59aecadd0aa9a774e521bd321cee2f558a5bbb5f997d76. 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/JPPO02103762.
  date published: 2026-06-13T13:32:09Z
audio: 好きだから。
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 162.199
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.603
  additional property: Energy
    type: PropertyValue
    value: 0.481
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.173
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.329
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.698
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.79
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

bathroom
type: MusicRecording
duration: PT3M31S
duration ms: 211266
explicit: false
by artist: MAISONdes
by artist: れん
by artist: maeshima soshi
in album: bathroom
  type: MusicAlbum
  date published: 2023-09-27
genre: japanese-teen-pop
isrc code: JPU902303829
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T16:27:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xadf77d7bb59ff33f8ebc99d087db153fd8e20e977343da8edd66090a5f4ffb53
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU902303829
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf77d7bb59ff33f8ebc99d087db153fd8e20e977343da8edd66090a5f4ffb53. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPU902303829.
  date published: 2026-06-13T12:47:07Z
audio: bathroom
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.226
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.635
  additional property: Energy
    type: PropertyValue
    value: 0.619
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.025
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.31
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.729
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.918
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major