One address is not one balance
2 min read
The same EVM address holds different assets on every chain it has ever touched, which is why a tracker that reads one network quietly reports a number that is too low.
An Ethereum address is not an account on Ethereum. It is a keypair, and the same keypair controls a different account, with different holdings, on every EVM network that exists. Paste 0xabc… into a block explorer for Ethereum and you see one set of balances. Paste the same string into an explorer for Arbitrum and you see another. Neither is wrong and neither is complete.
This is the single most common way a self-assembled portfolio total comes out low. Someone checks their main address on the network they think of as their main network, writes the figure down, and never learns about the position they bridged to Base eighteen months ago and left there.
Why the gap is so easy to miss
Bridging is the normal way to move value between EVM networks, and it is deliberately frictionless. The address does not change. The wallet interface usually shows one network at a time and remembers whichever you last selected. Nothing anywhere tells you that you now hold assets in two places, because from the chain’s point of view you do not — you hold assets in one place on each of two entirely separate ledgers that happen to accept the same signature.
The failure is silent and it is directional. It never invents value you do not have; it only omits value you do. That makes it hard to notice, because the number it produces looks plausible.
What checking properly involves
The mechanical answer is to query every network the address could have touched, not the one you remember using. That is a per-network call, per address, every time you want a current figure — which is exactly the sort of tedious, easily-skipped work that a tool should be doing instead of a person.
This tracker takes one address and checks it across every supported EVM network at once, so adding a wallet is a single paste rather than one paste per chain. Non-EVM chains are different keypairs with different address formats, so those are added separately — but within the EVM family, one address means one entry.
The practical rule
If you have ever bridged, used an L2, claimed an airdrop, or clicked "switch network" in a wallet prompt, your address holds value on more than one chain. Any total that came from looking at one explorer is a floor, not a figure.