A cryptographic file verification platform that proves digital integrity using mathematics — not trust, not blockchain, not AI. Zero-custody by design.
Digital files are trivially easy to alter. PDFs, contracts, certificates — anyone can modify them without a visible trace. Existing solutions require uploading files to third-party servers (privacy risk), rely on centralized authorities (single point of failure), or overcomplicate verification with blockchain overhead nobody needed.
VerixID computes a SHA-256 hash of a file locally — the file never leaves the user's device. It issues a signed verification receipt using Ed25519. The result is deterministic: anyone using any standard cryptographic tool can independently verify the receipt without depending on VerixID's infrastructure.
Four steps. No file leaves the device.
SHA-256 hash computed in-browser. Zero bytes sent to server. Zero-custody by design, not by policy.
Only the mathematical fingerprint is sent — not the file, not metadata, not identity information.
Ed25519 signed verification receipt generated. Tamper-evident. Timestamped. Permanent.
Anyone can verify using OpenSSL, Python, or any standard tool. No VerixID dependency required.
Client-side SHA-256 hashing — all computation in-browser. No file upload architecture. Privacy-first by design, not by configuration.
Cryptographically signed verification receipts, independently verifiable. Any tampering — to the file or receipt — is mathematically detectable.
Anyone can validate a receipt independently. No account required. No VerixID dependency for the verification process itself.
PSE Komdigi registration supported. Legal framework aligned with Indonesian electronic system regulations.
"Mathematical witness" as a distinct category — not blockchain, not cloud storage, not AI. Positioning that separates VerixID from every common misclassification.
Built with a 10-year TTL, this system preserves digital records with deterministic integrity, precision indexing, and long-term verifiability across evolving technologies.
Category precision matters. STUDIO designed the positioning to eliminate misclassification from day one.
Built on STUDIO's production infrastructure with cryptographic precision at the core.
STUDIO works with founders and operators building serious platforms. Tell us what you're building.