Giulio Parrinello

Giulio Parrinello

Engineer, founder and AI enthusiast :))
#99191912 followers5 following
>10,000All time
183 KP

About

I study Management Engineering. I like watching green leaves turn brown and crisp. I work at the intersection of design and technology, building digital products that combine visual simplicity with technical robustness. I founded Agro, a marketplace aimed at transforming the Italian agricultural sector, and I’m developing YouSaidThat, an open-source cryptographic notarization platform. Among smaller projects is Julify, which turns Spotify listening data into a constantly updated ranking.

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Tastemaker
Tastemaker

Maker History

  • yousaidthat.org
    yousaidthat.orgProve that you said things before anyone else
    Jun 2026
    • 🎉
    Joined Product HuntJune 15th, 2026

Forums

Giulio Parrinello•

5h ago

yousaidthat.org - Prove that you said things before anyone else

YouSaidThat lets you seal any prediction. A market call, a hot take, a thesis — with SHA-256 hashing, AES-256-GCM encryption, and RFC 3161 timestamps. No one can see it until you reveal it. Once you do, anyone can verify you wrote it exactly then, without trusting you or any platform. Built on open cryptographic standards. No accounts needed. Fully auditable. Your proof lives outside any server.
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