Runa Sakuramochi
type: MusicGroup
genre: vocaloid
popularity: 3
followers: 39
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d21810a9866baed1eea58b3e7170ef53669365e074a41ea9975e396f55153a4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c67a10dd-06f1-4462-8656-60b3ee886afc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c67a10dd-06f1-4462-8656-60b3ee886afc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c67a10dd-06f1-4462-8656-60b3ee886afc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3d21810a9866baed1eea58b3e7170ef53669365e074a41ea9975e396f55153a4","name":"Runa Sakuramochi","registered_at":"2026-06-20T21:35:30Z","symbol":"NIM1718093","token_address":"0xdccfcf67c95846d5401fa15f9c18d8350656b92e","type":"artist","uuid":"c67a10dd-06f1-4462-8656-60b3ee886afc"}
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 0x3d21810a9866baed1eea58b3e7170ef53669365e074a41ea9975e396f55153a4. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c67a10dd-06f1-4462-8656-60b3ee886afc.json and https://artists.proofprofile.net/proofs/artist/c67a10dd-06f1-4462-8656-60b3ee886afc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x3d21810a9866baed1eea58b3e7170ef53669365e074a41ea9975e396f55153a4","name":"Runa Sakuramochi","registered_at":"2026-06-20T21:35:30Z","symbol":"NIM1718093","token_address":"0xdccfcf67c95846d5401fa15f9c18d8350656b92e","type":"artist","uuid":"c67a10dd-06f1-4462-8656-60b3ee886afc"}
album: mochi life
  type: MusicAlbum
  date published: 2022-06-01
  track: 5pm!
    type: MusicRecording
    duration: PT3M19S
    duration ms: 199384
    explicit: false
    by artist: Runa Sakuramochi
    in album: mochi life
      type: MusicAlbum
      date published: 2022-06-01
    genre: vocaloid
    isrc code: TCJPS2207389
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T21:13:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x31c2a2fea993c2e4f0bc2be237f5654bf275389cf6ef43832002cfbf9e077690
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2207389
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0x31c2a2fea993c2e4f0bc2be237f5654bf275389cf6ef43832002cfbf9e077690. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCJPS2207389.
      date published: 2026-07-06T01:26:17Z
    audio: 5pm!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.005
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.57
      additional property: Energy
        type: PropertyValue
        value: 0.775
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.005
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.846
      additional property: Liveness
        type: PropertyValue
        value: 0.288
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.438
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.932
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: mochi town
  type: MusicAlbum
  date published: 2023-09-08