NFC PROOF OF MEETING
THE INSIGHT
In the crypto and web3 space, sybil attacks are everywhere. Bots farm airdrops, fake accounts inflate metrics, and trust is hard to establish. But there's one thing that's still very hard to fake: actually meeting someone in real life.
If we could prove that two people physically met, we'd have a powerful signal of authenticity. That proof-of-meeting could anchor a professional network where every connection represents a real interaction.
APPROACH
We built NFC cards that you'd tap against someone else's phone when meeting at events. The tap created a cryptographic proof that both parties were in the same physical location at the same time.
These proofs were stored onchain as verifiable credentials. Your network became a web of real-world meetings, resistant to the spam and fakery that plague traditional social networks.
WHAT WE LEARNED
The technology worked beautifully. The challenge was social: asking someone to tap phones is awkward and breaks the natural flow of meeting people. We needed the insight without the friction. This learning informed later pivots toward passive network discovery.
MY ROLE
STATUS
THE DESIGN
FarCon NFC card — testing proof-of-meeting concept at crypto's premier Farcaster event
Black edition cards — premium NFC cards for early adopters and VIP events