いつかのネモフィラ
type: MusicGroup
popularity: 13
followers: 2357
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x622a80ca1b6e8fce685c2e0ee84aa5c32f192947bafb989c051c58aece26435e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953691
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953691
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6aaf9414-6102-475b-b2ef-ebf7bc1b1664.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6aaf9414-6102-475b-b2ef-ebf7bc1b1664.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6aaf9414-6102-475b-b2ef-ebf7bc1b1664
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T20:39:17Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x622a80ca1b6e8fce685c2e0ee84aa5c32f192947bafb989c051c58aece26435e","name":"いつかのネモフィラ","registered_at":"2026-06-14T15:42:22Z","symbol":"NIM0499302","token_address":"0xb98f6c4eb5119483e9d6b4935adb7bb284e4d9ea","type":"artist","uuid":"6aaf9414-6102-475b-b2ef-ebf7bc1b1664"}
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 0x622a80ca1b6e8fce685c2e0ee84aa5c32f192947bafb989c051c58aece26435e. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6aaf9414-6102-475b-b2ef-ebf7bc1b1664.json and https://artists.proofprofile.net/proofs/artist/6aaf9414-6102-475b-b2ef-ebf7bc1b1664.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T20:39:17Z
  text: {"copyright_id":"0x622a80ca1b6e8fce685c2e0ee84aa5c32f192947bafb989c051c58aece26435e","name":"いつかのネモフィラ","registered_at":"2026-06-14T15:42:22Z","symbol":"NIM0499302","token_address":"0xb98f6c4eb5119483e9d6b4935adb7bb284e4d9ea","type":"artist","uuid":"6aaf9414-6102-475b-b2ef-ebf7bc1b1664"}
album: 眠らないこの街の片隅より
  type: MusicAlbum
  date published: 2020-04-27
album: 終電はあるのに歩いて帰ろう
  type: MusicAlbum
  date published: 2020-04-27
  track: ブルーアワー
    type: MusicRecording
    duration: PT5M22S
    duration ms: 322146
    explicit: false
    by artist: いつかのネモフィラ
    in album: 終電はあるのに歩いて帰ろう
      type: MusicAlbum
      date published: 2020-04-27
    isrc code: TCJPL2009711
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T05:20:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdabf32906ada7bfbc770ec2ab6f3dcd7630c84e2bb740d18cfb35d033c0f184f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956776
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956776
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPL2009711
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:59:37Z
    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 0xdabf32906ada7bfbc770ec2ab6f3dcd7630c84e2bb740d18cfb35d033c0f184f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCJPL2009711.
      date published: 2026-07-05T10:59:37Z
    audio: ブルーアワー
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.03
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.596
      additional property: Energy
        type: PropertyValue
        value: 0.643
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.08
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.2
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.546
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.626
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: こころのかたちが変わる日々
  type: MusicAlbum
  date published: 2020-04-27
album: 青い瞳
  type: MusicAlbum
  date published: 2020-09-07
album: ひゅるりら
  type: MusicAlbum
  date published: 2020-09-24
album: 伝えることすらできない
  type: MusicAlbum
  date published: 2021-07-27
  track: リタ
    type: MusicRecording
    duration: PT5M24S
    duration ms: 324970
    explicit: false
    by artist: いつかのネモフィラ
    in album: 伝えることすらできない
      type: MusicAlbum
      date published: 2021-07-27
    isrc code: TCJPP2127015
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T01:46:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x58a2e348b6d6c06ed2ed986d1c7cc376d13e009624bc212260471bc1e2ac6cd4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      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/TCJPP2127015
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T00:09:46Z
    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 0x58a2e348b6d6c06ed2ed986d1c7cc376d13e009624bc212260471bc1e2ac6cd4. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:09:46Z), 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/TCJPP2127015.
      date published: 2026-07-20T00:09:46Z
    audio: リタ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.892
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.595
      additional property: Energy
        type: PropertyValue
        value: 0.699
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      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: それでもいいよ
album: マーガレット
album: ペトリコール
album: 夜更東京
album: ちょっと思い出しただけ
album: オフィーリア
album: 君の瞳に映りたい
album: 春霞
album: Ayah
album: 微熱
album: ビーナス / レイク

Acousticness
type: PropertyValue
value: 0.652

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.119

Valence (Positivity)
type: PropertyValue
value: 0.512

Loudness (dB)
type: PropertyValue
value: -4.624

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

それでもいいよ
type: MusicAlbum
date published: 2021-09-27

マーガレット
type: MusicAlbum
date published: 2022-07-20
track: マーガレット
  type: MusicRecording
  duration: PT3M54S
  duration ms: 234473
  explicit: false
  by artist: いつかのネモフィラ
  in album: マーガレット
    type: MusicAlbum
    date published: 2022-07-20
  isrc code: TCJPS2246199
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T20:44:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x41a850a72e645be2471e5ac9d5344218fd9e8ff7ea1bfb2c2332e2b43ae8c86f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956639
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956639
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2246199
  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 → 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 0x41a850a72e645be2471e5ac9d5344218fd9e8ff7ea1bfb2c2332e2b43ae8c86f. 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/TCJPS2246199.
    date published: 2026-07-04T11:19:20Z
  audio: マーガレット
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 76.085
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.466
    additional property: Energy
      type: PropertyValue
      value: 0.629
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.074
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.149
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.39
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.304
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

ペトリコール
type: MusicAlbum
date published: 2022-08-31

夜更東京
type: MusicAlbum
date published: 2023-02-07

ちょっと思い出しただけ
type: MusicAlbum
date published: 2023-05-25

オフィーリア
type: MusicAlbum
date published: 2023-06-23

君の瞳に映りたい
type: MusicAlbum
date published: 2024-04-24

春霞
type: MusicAlbum
date published: 2024-05-08

Ayah
type: MusicAlbum
date published: 2024-06-16

微熱
type: MusicAlbum
date published: 2024-06-19

ビーナス / レイク
type: MusicAlbum
date published: 2024-11-20