Seal a document with your wallet. The file is hashed on this device and never uploaded. Signing and verifying are free. Anchoring puts proof on Base that your seals existed by a certain block: $0.02 in ETH per anchor transaction plus network gas, however many seals it carries.
1. Choose the document
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2. Sign
Each signer opens the link, signs, and passes it on. The seal travels in the link itself, not through a server.
Check a seal
Anchor seals on Base beta
One transaction carries a Merkle root of every seal you add. Each seal gets its own proof back.
Anchor from a regular wallet. Smart wallets, a Base Account for one, can sign seals but can't anchor them yet.
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Seal 🦭