Miwa Nagato-Apthorp
type: MusicGroup
popularity: 2
followers: 31
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13dde3f595de2bb4535c4a3ada507727ec4d8dd143dc4bed803496fd26cddc7c
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/e35b5fd8-18e1-4437-9d21-54ae798a8922.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e35b5fd8-18e1-4437-9d21-54ae798a8922.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e35b5fd8-18e1-4437-9d21-54ae798a8922
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x13dde3f595de2bb4535c4a3ada507727ec4d8dd143dc4bed803496fd26cddc7c","name":"Miwa Nagato-Apthorp","registered_at":"2026-06-21T07:52:31Z","symbol":"NIM1867161","token_address":"0x901447141b7bdbbb19b9134a8334461763722bbf","type":"artist","uuid":"e35b5fd8-18e1-4437-9d21-54ae798a8922"}
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 0x13dde3f595de2bb4535c4a3ada507727ec4d8dd143dc4bed803496fd26cddc7c. 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/e35b5fd8-18e1-4437-9d21-54ae798a8922.json and https://artists.proofprofile.net/proofs/artist/e35b5fd8-18e1-4437-9d21-54ae798a8922.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x13dde3f595de2bb4535c4a3ada507727ec4d8dd143dc4bed803496fd26cddc7c","name":"Miwa Nagato-Apthorp","registered_at":"2026-06-21T07:52:31Z","symbol":"NIM1867161","token_address":"0x901447141b7bdbbb19b9134a8334461763722bbf","type":"artist","uuid":"e35b5fd8-18e1-4437-9d21-54ae798a8922"}
album: Hawthorn Song
  type: MusicAlbum
  date published: 2025-03-28
  track: Hawthorn Song
    type: MusicRecording
    duration: PT4M31S
    duration ms: 271426
    explicit: false
    by artist: Miwa Nagato-Apthorp
    in album: Hawthorn Song
      type: MusicAlbum
      date published: 2025-03-28
    isrc code: GXFDE2400003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T07:45:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x52c852ee379df7dc1d30dc7edc43ee9fe2db90a9120b10a9dcd9b79d2d081613
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958985
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958985
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXFDE2400003
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T10:47:51Z
    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 0x52c852ee379df7dc1d30dc7edc43ee9fe2db90a9120b10a9dcd9b79d2d081613. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:47:51Z), 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/GXFDE2400003.
      date published: 2026-07-21T10:47:51Z
    audio: Hawthorn Song
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.791
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.52
      additional property: Energy
        type: PropertyValue
        value: 0.125
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.955
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.196
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.903
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Noren
  type: MusicAlbum
  date published: 2025-05-02