Freeze authority
The power to freeze tokens in someone else's wallet. Frozen tokens cannot be sold.
Why it matters
A classic scheme: buyers are allowed to buy, then their wallets are frozen and only the creator can sell. From outside the chart looks alive, but there is no exit.
What it looks like in practice
SPL and Token-2022 tokens have a freeze authority field. Empty means nothing can be frozen. Stablecoins usually keep it — issuers freeze stolen funds. A memecoin has almost no reason to. In EVM contracts an address blacklist plays a similar role.
How QUVR Pulse checks it
QUVR Pulse reads the freeze authority straight from the mint account and separately flags the Token-2022 “default frozen” extension, which freezes new wallets by default.
FAQ
Do pump.fun tokens have a freeze authority?
No: pump.fun creates tokens with mint and freeze authority already revoked. If you see them on a token, it was not launched via pump.fun.