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Burning destroys tokens permanently. Once burned, they’re gone forever.

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How it works

The issuer signs a burn transaction specifying which tokens to destroy. Operators validate and commit. Those tokens no longer exist. Total supply decreases.

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Why burn?

Redemptions. User wants to cash out $100 of stablecoin. You send them $100, burn their 100 tokens. Supply stays matched to reserves. Deflationary mechanics. Some tokens burn a portion of each transaction or do periodic buyback-and-burns. Mistakes. Minted too many? Burn the excess.

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Who can burn

Only the issuer can use the burn function directly. But there’s a workaround: anyone can burn tokens by sending them to the burn address.
Tokens sent here are gone. The address exists but nobody has the key. This lets regular users burn their own tokens if they want to.

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Irreversibility

Burning is permanent. There’s no undo. Double-check amounts before you burn. If an issuer burns tokens by mistake, the only fix is minting new ones (if max supply allows).

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Burning vs freezing

Freezing is temporary and reversible. Burning is permanent. If you’re not sure, freeze first. You can always burn later.