EnKrypto

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Inspiration

During startup due diligence, founders are asked to prove when data existed, whether it changed, and who controlled it. Existing answers rely on internal logs and cloud audits, which are self-reported and non-independent. This gap inspired EnKrypto.

What it does

EnKrypto acts as a digital notary for data. It creates cryptographic proof that specific data existed at a specific time and has not been modified since—without storing files or accessing content.

How we built it

Data is hashed using SHA-256, time-anchored on an immutable public ledger (Polygon), and recorded in an append-only proof registry. A public API allows anyone to independently verify proofs.

Challenges we ran into

The main challenge was building trust without custody—providing strong guarantees while avoiding file storage, content access, or subjective judgment.