Mobile Evidence Collection Tool


BlockChain Witness App

Mobile Evidence Collection Tool
Blockhain Witness App

Collect Digital Evidence from Mobile Devices

Collects evidence using built-in camera, voice recorder and also screen recording function; each evidence is complemented with timestamp and GPS location information, ensuring originality

Preserve Evidence on Blockchain

The evidence hash value is stored in blockchain utilizing its main attributes of being tamper-proof, non-repudiable, and permanent

Verify Digital Evidence from Blockchain

An App evidence, or alternatively an evidence imported from other devices, can be selected and verified for whether exists on blockchain


  • Website
  • Blockchain Witness App was launched with the aim of enabling users to store their digital evidence on blockchain. The App collects digital evidence such as photos, videos, voice and screen recordings via the built-in camera or microphone on a mobile device. It then automatically stores the evidence’s hash value on blockchain preventing any data tampering.

    Four major evidence collection functions: Photo, Video, Voice Recording and Screen Recording therefore, accommodates various types of evidence collection needs.

    ・Collection of Original Evidence:
    Our programs' design do not allow file modifications by other software products, ensuring the authenticity of the evidence is fully preserved.
    ・Personalized Memos:
    Record every detail about the collected evidence, not worrying about forgetting crucial details.
    ・Preserves to Blockchain:
    Select and preserve evidences' digital fingerprints to Blockchain; Blockchain, through its consensus mechanism, uses each of its nodes to maintain all your valuable evidence material
    ・Verification on Blockchain:
    Verify digital fingerprints to ensure the authenticity of the evidence material and to highly improve the confidence of the courts