Definition
A token burn is a process intended to remove token units from usable supply. In a smart contract system, a dedicated burn operation may decrease a holder's balance and the contract's recorded total supply. Another approach sends assets to a demonstrably unspendable destination, although this may not change the supply figure reported by the token contract. These mechanisms should be distinguished from temporarily locking tokens or moving them into an issuer-controlled treasury. A burn can be part of redemption, fee processing, migration, or an economic policy, but reducing units does not guarantee higher market value. The effect depends on demand, remaining supply, future minting powers, and the credibility of the removal mechanism. Users should also distinguish intended burns from accidental loss of keys, which can make assets inaccessible without producing a verifiable supply-reduction event. The exact contract or protocol determines what a burn actually changes.
Source references
References accompanying this glossary entry:
- https://docs.openzeppelin.com/contracts/5.x/api/token/erc20
- https://github.com/bitcoin/bitcoin/blob/master/src/script/script.h
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