小春めう
type: MusicGroup
popularity: 10
followers: 1030
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x45ea0643a08e47c89b9a6ef3989ca3a49dabf13fb91b84b29f2735813add2a76
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954593
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954593
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bd52a6f6-33e9-4f50-9b04-50038ce31125.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bd52a6f6-33e9-4f50-9b04-50038ce31125.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bd52a6f6-33e9-4f50-9b04-50038ce31125
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:46:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x45ea0643a08e47c89b9a6ef3989ca3a49dabf13fb91b84b29f2735813add2a76","name":"小春めう","registered_at":"2026-06-20T18:10:34Z","symbol":"NIM1673920","token_address":"0x412f815c34a7be732b88ce58832a911634b61a78","type":"artist","uuid":"bd52a6f6-33e9-4f50-9b04-50038ce31125"}
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 0x45ea0643a08e47c89b9a6ef3989ca3a49dabf13fb91b84b29f2735813add2a76. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd52a6f6-33e9-4f50-9b04-50038ce31125.json and https://artists.proofprofile.net/proofs/artist/bd52a6f6-33e9-4f50-9b04-50038ce31125.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:46:01Z
  text: {"copyright_id":"0x45ea0643a08e47c89b9a6ef3989ca3a49dabf13fb91b84b29f2735813add2a76","name":"小春めう","registered_at":"2026-06-20T18:10:34Z","symbol":"NIM1673920","token_address":"0x412f815c34a7be732b88ce58832a911634b61a78","type":"artist","uuid":"bd52a6f6-33e9-4f50-9b04-50038ce31125"}
album: Rhythmic Emotion
  type: MusicAlbum
  date published: 2016-08-26
album: una wave
  type: MusicAlbum
  date published: 2017-10-29
album: Reflect Authorize
  type: MusicAlbum
  date published: 2018-08-31
album: メモリー
  type: MusicAlbum
  date published: 2020-04-08
  track: メモリー
    type: MusicRecording
    duration: PT4M10S
    duration ms: 250000
    explicit: false
    by artist: 小春めう
    in album: メモリー
      type: MusicAlbum
      date published: 2020-04-08
    isrc code: TCJPK2089099
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T22:45:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1c35fc58070cb83cdcb45b92c5016bce210f815b8f84449292d1d7b109bf555c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958461
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958461
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPK2089099
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T23:18:11Z
    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 0x1c35fc58070cb83cdcb45b92c5016bce210f815b8f84449292d1d7b109bf555c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCJPK2089099.
      date published: 2026-07-17T23:18:11Z
    audio: メモリー
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 174.928
      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: 0.434
      additional property: Energy
        type: PropertyValue
        value: 0.977
      additional property: Speechiness
        type: PropertyValue
        value: 0.061
      additional property: Acousticness
        type: PropertyValue
        value: 0.033
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.123
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.69
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.829
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Clipper
  type: MusicAlbum
  date published: 2022-01-28
album: Reframing
  type: MusicAlbum
  date published: 2023-01-27