Kzin 77
type: MusicGroup
popularity: 5
followers: 38
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4785e55da39e0f8d5216154eb8a064f0b566c8364a4ef65ddf11f475c0e36985
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d74c4494-505c-4053-b792-abaf4e20f137.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d74c4494-505c-4053-b792-abaf4e20f137.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d74c4494-505c-4053-b792-abaf4e20f137
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4785e55da39e0f8d5216154eb8a064f0b566c8364a4ef65ddf11f475c0e36985","name":"Kzin 77","registered_at":"2026-06-21T03:06:51Z","symbol":"NIM1800052","token_address":"0xfe35ab285429bcd0d65894b9340b29dbfbb00196","type":"artist","uuid":"d74c4494-505c-4053-b792-abaf4e20f137"}
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 0x4785e55da39e0f8d5216154eb8a064f0b566c8364a4ef65ddf11f475c0e36985. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d74c4494-505c-4053-b792-abaf4e20f137.json and https://artists.proofprofile.net/proofs/artist/d74c4494-505c-4053-b792-abaf4e20f137.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
  text: {"copyright_id":"0x4785e55da39e0f8d5216154eb8a064f0b566c8364a4ef65ddf11f475c0e36985","name":"Kzin 77","registered_at":"2026-06-21T03:06:51Z","symbol":"NIM1800052","token_address":"0xfe35ab285429bcd0d65894b9340b29dbfbb00196","type":"artist","uuid":"d74c4494-505c-4053-b792-abaf4e20f137"}
album: Aprendi Com a Solidao
  type: MusicAlbum
  date published: 2022-01-17
album: Sigo Forte
  type: MusicAlbum
  date published: 2022-07-16
album: Cachê
  type: MusicAlbum
  date published: 2022-07-27
album: Prada
  type: MusicAlbum
  date published: 2022-08-18
album: Pandora
  type: MusicAlbum
  date published: 2022-10-01
  track: Pandora
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179866
    explicit: true
    by artist: Kzin 77
    in album: Pandora
      type: MusicAlbum
      date published: 2022-10-01
    isrc code: QZW9L2241243
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T15:39:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9ad2c9bf5d4fa9a73358cfb581bd689da6a5ff96cc1eb85d0d5a2a6064107f02
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958170
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958170
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2241243
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T16:21:50Z
    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 0x9ad2c9bf5d4fa9a73358cfb581bd689da6a5ff96cc1eb85d0d5a2a6064107f02. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZW9L2241243.
      date published: 2026-07-15T16:21:50Z
    audio: Pandora
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.029
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.75
      additional property: Energy
        type: PropertyValue
        value: 0.216
      additional property: Speechiness
        type: PropertyValue
        value: 0.121
      additional property: Acousticness
        type: PropertyValue
        value: 0.57
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.634
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.213
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor