OnChain.Bio
The first decentralized social bio tool
OnChain.Bio launched on December 20, 2021 with 78 votes, #630 of 2,707 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 4 years on.
What it does
With OnChain.bio, your social profile data is stored as an NFT on the Polygon network. You own the token that represents your profile and all metadata is kept in decentralized storage. You can view your profile on the ledger, or trade and sell on OpenSea.
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