M. Arena
type: MusicGroup
popularity: 6
followers: 143
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8419aff0231d705543e8707e65e243cb540bd5bb9efc3a2523e1ee8b195dec0f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/77aa6d30-2262-4335-8056-4053caf87159.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/77aa6d30-2262-4335-8056-4053caf87159.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/77aa6d30-2262-4335-8056-4053caf87159
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8419aff0231d705543e8707e65e243cb540bd5bb9efc3a2523e1ee8b195dec0f","name":"M. Arena","registered_at":"2026-06-17T07:21:05Z","symbol":"NIM1322313","token_address":"0x69499dcaabd2511f6356ee90f83f5f7460f9907e","type":"artist","uuid":"77aa6d30-2262-4335-8056-4053caf87159"}
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 0x8419aff0231d705543e8707e65e243cb540bd5bb9efc3a2523e1ee8b195dec0f. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77aa6d30-2262-4335-8056-4053caf87159.json and https://artists.proofprofile.net/proofs/artist/77aa6d30-2262-4335-8056-4053caf87159.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T15:44:10Z
  text: {"copyright_id":"0x8419aff0231d705543e8707e65e243cb540bd5bb9efc3a2523e1ee8b195dec0f","name":"M. Arena","registered_at":"2026-06-17T07:21:05Z","symbol":"NIM1322313","token_address":"0x69499dcaabd2511f6356ee90f83f5f7460f9907e","type":"artist","uuid":"77aa6d30-2262-4335-8056-4053caf87159"}
album: Ngaka Li Kepane
  type: MusicAlbum
  date published: 2005-08-08
album: Ngaka Li Kepane
  type: MusicAlbum
  date published: 2005-08-08
  track: Notsi Tsa Semana
    type: MusicRecording
    duration: PT4M18S
    duration ms: 258693
    explicit: false
    by artist: M. Arena
    in album: Ngaka Li Kepane
      type: MusicAlbum
      date published: 2005-08-08
    isrc code: ZAA160500344
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T16:15:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3694ba1be068bf37808c5773a18736780ef98d55e4d6d750138e06e0bbf39ee7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958316
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958316
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ZAA160500344
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T23:08:50Z
    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 0x3694ba1be068bf37808c5773a18736780ef98d55e4d6d750138e06e0bbf39ee7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:08:50Z), 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/ZAA160500344.
      date published: 2026-07-16T23:08:50Z
    audio: Notsi Tsa Semana
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 171.881
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.543
      additional property: Energy
        type: PropertyValue
        value: 0.704
      additional property: Speechiness
        type: PropertyValue
        value: 0.131
      additional property: Acousticness
        type: PropertyValue
        value: 0.051
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.052
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.895
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.034
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Hey Mary
  type: MusicAlbum
  date published: 2016-04-15