Leo CS
type: MusicGroup
popularity: 4
followers: 99
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe87def66255cefb5188659022344c7d0b7f42814f08960dd6948da0e2b38f6ed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953885
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953885
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0c420820-a290-44e6-9e3d-eb23eab4e26d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0c420820-a290-44e6-9e3d-eb23eab4e26d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0c420820-a290-44e6-9e3d-eb23eab4e26d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:12:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe87def66255cefb5188659022344c7d0b7f42814f08960dd6948da0e2b38f6ed","name":"Leo CS","registered_at":"2026-06-15T17:51:07Z","symbol":"NIM0785373","token_address":"0x1a8f77bfd9b6f083f4f81c28f6ce9b7553f269bd","type":"artist","uuid":"0c420820-a290-44e6-9e3d-eb23eab4e26d"}
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 0xe87def66255cefb5188659022344c7d0b7f42814f08960dd6948da0e2b38f6ed. Chain 2 (Bitcoin): anchored in block 953885 (2026-06-16T04:12:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0c420820-a290-44e6-9e3d-eb23eab4e26d.json and https://artists.proofprofile.net/proofs/artist/0c420820-a290-44e6-9e3d-eb23eab4e26d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T04:12:47Z
  text: {"copyright_id":"0xe87def66255cefb5188659022344c7d0b7f42814f08960dd6948da0e2b38f6ed","name":"Leo CS","registered_at":"2026-06-15T17:51:07Z","symbol":"NIM0785373","token_address":"0x1a8f77bfd9b6f083f4f81c28f6ce9b7553f269bd","type":"artist","uuid":"0c420820-a290-44e6-9e3d-eb23eab4e26d"}
album: 遊泳 (Yuuei)
  type: MusicAlbum
  date published: 2024-11-15
album: 遊泳 (Yuuei)
  type: MusicAlbum
  date published: 2024-11-15
  track: 遊泳 (Yuuei)
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217800
    explicit: false
    by artist: Leo CS
    in album: 遊泳 (Yuuei)
      type: MusicAlbum
      date published: 2024-11-15
    isrc code: QZVEM1813888
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T01:46:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe8f57d6b0b82d9af7ecc345afe676538181faf9391ab7135f3e5686bd446d63b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956861
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956861
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZVEM1813888
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:57:57Z
    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 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 0xe8f57d6b0b82d9af7ecc345afe676538181faf9391ab7135f3e5686bd446d63b. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/QZVEM1813888.
      date published: 2026-07-06T01:57:57Z
    audio: 遊泳 (Yuuei)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 75.005
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.56
      additional property: Energy
        type: PropertyValue
        value: 0.48
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.567
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.446
      additional property: Liveness
        type: PropertyValue
        value: 0.085
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.164
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.655
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Flying
  type: MusicAlbum
  date published: 2025-01-10
album: Trees And Grass
  type: MusicAlbum
  date published: 2025-03-07