Rent Help

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  Example of successful verification

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  For antigravity track

Inspiration

As a first year student, the process of renting property is one of the new challenges I'm facing. I've found that the knowledge gap between landlords and students is especially wide, making students particularly vulerable to malicious renters. The specific problem I'm aiming to solve is rental property damage fraud, where one party false claims the other to be responsible for the damages.

What it does

Rent Help uses cryptographic principles and the blockchain to guarentee that a pdf of images of a property were taken exactly when they were claimed to be taken.

A pdf signed by a blockchain hash guarentees it was not generated before the claimed date. Mathematically, it is impossible to predict a future blockchain hash, meaning signing a pdf guarentees a timestamp floor.

This app guarentees a ceiling time (through generating a bundle of signature, pdf, and certificate which the user can email to the other party), and a floor time (taking a photo in app and immediately signing the latest blockchain hash to it).

How I built it

This app was heavily developed using Google's Antigravity IDE and Gemini, as I'm submitting this project to the Antigravity track and worked solo on this project.

Built With

• android-studio
• antigravity
• blockchain
• bouncycastle
• java