Every coin on pump.fun has two halves that behave in opposite ways. One half is locked the moment the coin is created and stays fixed for good. The other half can change at any time, and often does. A lot of bad calls come from trusting the locked half to vouch for the half that is still moving. Knowing which parts of a coin's identity are actually fixed is what keeps you out of that trap. For the wider picture of what a launched coin even is, see coins launched on pump.fun.
The part that stays fixed: the metadata
When a coin is created, its core identity is written once and then frozen. That means the name, the ticker symbol, and the image. Once a coin exists, "the info cannot be changed, added, or removed" (source: Pump.fun help center). These live in a small metadata file, fixed at launch, that also holds the description and any social links the creator typed in at that moment. Which fields even exist is set by the create form itself, covered in pump.fun creation settings.
The reason it is permanent is technical, and worth knowing. On Solana, a token's metadata can only be edited by whoever holds its update authority, and only if the token was created as a changeable one in the first place. A token made immutable at creation keeps that metadata locked for good (source: Metaplex documentation). Pump.fun launches coins with that authority given up, which is what its help center means by the metadata being immutable. The mechanics of how the coin is minted around this sit in how coins are created on pump.fun.
So the fixed half is real, and you can lean on it for one narrow thing: a coin's name, ticker, and image today are the same ones it was born with. The image you see is the exact one uploaded at launch, and it has stayed that same image since. That is the entire guarantee, and it is smaller than it sounds.
The part that changes constantly
Everything that tells you whether a coin is worth holding sits in the other half, and all of it stays in motion.
The holder set changes with every trade. Who owns the coin, how concentrated it is, whether the creator is quietly selling, all of that moves block by block, independent of the frozen metadata. Reading it is a separate skill, and the first place to look is what the creator's wallet does next.
The socials and the story stay editable too, even though they feel like part of the coin. The logo and links you see on a tracker like DexScreener are submitted to that tracker by the project and live on the tracker's own site, where they can be updated later. They sit apart from the coin's on-chain metadata (source: DexScreener token-info). A Telegram group can be renamed, abandoned, or handed to someone else. The narrative a coin launched with can flip in a day. The creator's intentions are the least fixed thing of all.
The standard mistake
Put the two halves together and the trap is easy to see. The metadata being permanent proves that the name and picture stayed the same. The guarantee stops there, and it leaves the real questions open: whether the coin is safe, whether the team is real, and whether the people behind it are who you think. A locked-in image is still whatever image the creator uploaded, including a logo copied from a real project. Because the fixed half looks official, buyers let it vouch for the moving half, and that is exactly backward. Sorting real coins from impersonations and copied tickers is its own topic, handled in honeypots and fake tickers.
There is one more layer buyers miss. The metadata file itself lists the fields a coin was born with, including its name, symbol, image, and the social links set at creation (source: pump.fun coin metadata reference). Those launch-time links are frozen like everything else, which reassures less than it seems. A frozen link only means the address stayed the same, while the account behind it may sit abandoned.
If you decide to trade the pump.fun token itself, PUMP, weighing what a position costs is the practical next step: the PUMP/USDT market on BloFin shows the live price, and the fee schedule lists the maker and taker rates that apply to it.
Reading a coin the right way
Say you find a coin with a clean logo, a believable name, and a Telegram link, and it all looks legitimate. The right read is narrow: those three things are locked and have stayed unaltered since launch. That is all you have confirmed. To judge the coin you still have to check the moving half, who holds it, what the creator's wallet is doing, and whether the community is real, all of which sit beyond what the frozen metadata can tell you. Treat the permanent parts as a fingerprint, not a character reference.
Looking to trade PUMP? To get started, you'll need to first create a BloFin account, fund your account with cryptocurrency, and navigate to the PUMP/USDT Spot trading page or PUMPUSDT Perpetual page.
Frequently asked questions
Which parts of a pump.fun coin are fixed at creation?
The coin's metadata, which is its name, ticker symbol, and image, plus the description and social links set at creation. Pump.fun creates coins with the update authority given up, so this information is immutable and cannot be edited, added to, or removed after launch.
Can a creator change a coin's name or picture later?
Once the coin is created, its metadata is locked on-chain and there is no settings page to edit it. A creator who wants a different name or image would have to launch a new coin, which would be a separate token with its own address.
If the metadata is fixed, does that mean the coin is safe?
Immutable metadata only proves the name, ticker, and image have not changed since launch. It says nothing about who holds the coin, whether the creator is selling, or whether the team is real. Those are the parts that decide whether a coin is worth holding, and they are not fixed.
Why can I still see socials get added to a coin on DexScreener?
Because those socials live on DexScreener, not on the coin. Trackers let a project submit a logo and links that display on the tracker's own site, and those can be updated there. They are separate from the coin's frozen on-chain metadata.
Are the social links on a coin permanent?
The links typed into the create form at launch are part of the immutable metadata, so that text is frozen. That is not a safety signal, though. A frozen link only means the address has not changed, not that the account still exists or is run by the original team.
Researched and written by the BloFin Academy editorial team with AI-assisted drafting. Primary sources are Pump.fun's own published documentation and help center, Metaplex's token documentation, and DexScreener's token-info page. All facts independently verified against cited documentation current as of September 2026.
This article is for informational and educational purposes only. It is not financial, investment, or trading advice. Digital assets are volatile and many newly launched tokens lose all value. Do your own research and consider your own circumstances before trading.