横浜純情小町☆
type: MusicGroup
popularity: 4
followers: 100
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe3db67c41af42fb3b0c820ac0d3e13cfe526e424e8d9dadd3d36ee5c3ff67829
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/94d01e8f-3227-4a78-9e0e-aa062aedd9e7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/94d01e8f-3227-4a78-9e0e-aa062aedd9e7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/94d01e8f-3227-4a78-9e0e-aa062aedd9e7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe3db67c41af42fb3b0c820ac0d3e13cfe526e424e8d9dadd3d36ee5c3ff67829","name":"横浜純情小町☆","registered_at":"2026-06-17T17:55:54Z","symbol":"NIM1473674","token_address":"0x773878b10ebdc0b63cd24f9fd5e97e0bfea2fdc6","type":"artist","uuid":"94d01e8f-3227-4a78-9e0e-aa062aedd9e7"}
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 0xe3db67c41af42fb3b0c820ac0d3e13cfe526e424e8d9dadd3d36ee5c3ff67829. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94d01e8f-3227-4a78-9e0e-aa062aedd9e7.json and https://artists.proofprofile.net/proofs/artist/94d01e8f-3227-4a78-9e0e-aa062aedd9e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xe3db67c41af42fb3b0c820ac0d3e13cfe526e424e8d9dadd3d36ee5c3ff67829","name":"横浜純情小町☆","registered_at":"2026-06-17T17:55:54Z","symbol":"NIM1473674","token_address":"0x773878b10ebdc0b63cd24f9fd5e97e0bfea2fdc6","type":"artist","uuid":"94d01e8f-3227-4a78-9e0e-aa062aedd9e7"}
album: Yokohama Chinatown
  type: MusicAlbum
  date published: 2020-05-19
  track: 横浜市歌
    type: MusicRecording
    duration: PT2M57S
    duration ms: 177600
    explicit: false
    by artist: 横浜純情小町☆
    in album: Yokohama Chinatown
      type: MusicAlbum
      date published: 2020-05-19
    isrc code: JPP702000125
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T08:09:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x334825654011fca53796505381b2298cb10b718f46528d05b7228d524ed2fc69
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958384
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958384
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPP702000125
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T08:27:02Z
    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 0x334825654011fca53796505381b2298cb10b718f46528d05b7228d524ed2fc69. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/JPP702000125.
      date published: 2026-07-17T08:27:02Z
    audio: 横浜市歌
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.981
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.631
      additional property: Energy
        type: PropertyValue
        value: 0.878
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.121
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.079
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.704
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.544
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: この街のどこかで
  type: MusicAlbum
  date published: 2021-02-28
album: この街のどこかで
  type: MusicAlbum
  date published: 2021-02-28