民謡ガールズ
type: MusicGroup
genre: enka
popularity: 3
followers: 326
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb98f2820bb901089d7b3b8f10f3a7e6c94aac8e0ed8a49bf3faf8fe2dbffe203
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eaa81cff-ced2-455a-bfda-a74d34a59b9b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eaa81cff-ced2-455a-bfda-a74d34a59b9b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eaa81cff-ced2-455a-bfda-a74d34a59b9b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb98f2820bb901089d7b3b8f10f3a7e6c94aac8e0ed8a49bf3faf8fe2dbffe203","name":"民謡ガールズ","registered_at":"2026-06-21T10:44:49Z","symbol":"NIM1898293","token_address":"0x1f75dc85baceb44e0c07786726c3875da4217f61","type":"artist","uuid":"eaa81cff-ced2-455a-bfda-a74d34a59b9b"}
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 0xb98f2820bb901089d7b3b8f10f3a7e6c94aac8e0ed8a49bf3faf8fe2dbffe203. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eaa81cff-ced2-455a-bfda-a74d34a59b9b.json and https://artists.proofprofile.net/proofs/artist/eaa81cff-ced2-455a-bfda-a74d34a59b9b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xb98f2820bb901089d7b3b8f10f3a7e6c94aac8e0ed8a49bf3faf8fe2dbffe203","name":"民謡ガールズ","registered_at":"2026-06-21T10:44:49Z","symbol":"NIM1898293","token_address":"0x1f75dc85baceb44e0c07786726c3875da4217f61","type":"artist","uuid":"eaa81cff-ced2-455a-bfda-a74d34a59b9b"}
album: キラリ☆夢音頭
  type: MusicAlbum
  date published: 2018-05-16
album: キラリ☆夢音頭
  type: MusicAlbum
  date published: 2018-06-27
  track: キラリ☆夢音頭
    type: MusicRecording
    duration: PT4M11S
    duration ms: 251920
    explicit: false
    by artist: 民謡ガールズ
    in album: キラリ☆夢音頭
      type: MusicAlbum
      date published: 2018-06-27
    genre: enka
    isrc code: JPZ921805134
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T01:30:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2f65bad92864b5f9a7663bf38afd3192fad88315e31cf52fab14baf69ac56575
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ921805134
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → 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 0x2f65bad92864b5f9a7663bf38afd3192fad88315e31cf52fab14baf69ac56575. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ921805134.
      date published: 2026-07-06T01:25:57Z
    audio: キラリ☆夢音頭
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 148.053
      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: 0.524
      additional property: Energy
        type: PropertyValue
        value: 0.973
      additional property: Speechiness
        type: PropertyValue
        value: 0.085
      additional property: Acousticness
        type: PropertyValue
        value: 0.009
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.005
      additional property: Liveness
        type: PropertyValue
        value: 0.152
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.759
      additional property: Loudness (dB)
        type: PropertyValue
        value: -1.336
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: ミライ
  type: MusicAlbum
  date published: 2018-10-17
album: ミライ (ガールズ盤)
  type: MusicAlbum
  date published: 2018-11-28
album: ミライ (民謡盤)
  type: MusicAlbum
  date published: 2018-11-28
album: ミライ (みんがる盤)
  type: MusicAlbum
  date published: 2018-11-28
album: ハッピーデイズ！！！
  type: MusicAlbum
  date published: 2019-07-10
album: ハッピーデイズ！！！ (ガールズバージョン)
  type: MusicAlbum
  date published: 2019-07-31
album: ハッピーデイズ！！！
  type: MusicAlbum
  date published: 2019-07-31
album: ハッピーデイズ！！！ (民謡バージョン)
  type: MusicAlbum
  date published: 2019-07-31
  track: ハッピーデイズ!!!
    type: MusicRecording
    duration: PT4M13S
    duration ms: 253453
    explicit: false
    by artist: 民謡ガールズ
    in album: ハッピーデイズ！！！ (民謡バージョン)
      type: MusicAlbum
      date published: 2019-07-31
    genre: enka
    isrc code: JPZ921906039
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T12:24:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe36b8d076b5931d003cdf23b1ebaf960fef5cdf6add93a5b149ec57d1e629766
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958880
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958880
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ921906039
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T15:27:56Z
    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 → 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 0xe36b8d076b5931d003cdf23b1ebaf960fef5cdf6add93a5b149ec57d1e629766. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:27:56Z), 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/JPZ921906039.
      date published: 2026-07-20T15:27:56Z
    audio: ハッピーデイズ!!!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 148.953
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      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: ハッピーデイズ!!!

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.409

Energy
type: PropertyValue
value: 0.94

Speechiness
type: PropertyValue
value: 0.058

Acousticness
type: PropertyValue
value: 0.035

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.102

Valence (Positivity)
type: PropertyValue
value: 0.492

Loudness (dB)
type: PropertyValue
value: -0.215

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

ハッピーデイズ!!!
type: MusicAlbum
date published: 2019-07-31