
21st.dev
Github + Pinterest to make your AI websites look beautiful

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.
yousaidthat.org made its debut on June 16, 2026 — recently. yousaidthat.org is positioned within the GitHub, Developer Tools, Encryption, and Bitcoin sectors. Considered an emerging startup, it has gathered 63 votes and 2 comments from the community.
Browse all startups in GitHub, Developer Tools, Encryption, Bitcoin.
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