What Is Crypto Dust? A Practical Guide on zkSync
Learn what crypto dust is, why small balances accumulate, and how to identify useful versus risky tokens in a wallet.
Why this matters on zkSync
Crypto dust is usually the leftover balance created after swaps, transfers, rewards, or old positions. The important distinction is between a small legitimate balance and an unsolicited token that should never be touched.
zkSync is an Ethereum scaling ecosystem with its own network context and token representations.
zkSync is part of the Ethereum scaling ecosystem. The same ticker can exist on Ethereum and on zkSync as separate token contracts, so a balance seen on one network cannot be assumed to exist, or to be redeemable at the same value, on the other.
zkSync: what to pay attention to
- Assets and tokens: Verify the asset contract on zkSync before assuming it matches another network.
- Costs: Compare network fees with bridge and liquidity costs for the complete route.
- Security: Check the active network, contract and destination before signing.
A zkSync checklist for this topic
- Never enter a seed phrase or private key into a scanning or recovery site, including for zkSync.
- Leave a balance alone when the cost of moving it from zkSync exceeds what you would receive.
- Confirm the wallet address and that you are viewing zkSync before interpreting any balance.
- List every asset visible on zkSync and mark unfamiliar tokens for research instead of interacting with them.
Bridge from zkSync
Compare network fees with bridge and liquidity costs for the complete route. On the Linea side: verify the token contract on Linea before moving it.
The bridge guide below is informational; any transaction depends on current network conditions and the route shown in the bridge interface.
zkSync → Linea BRIDGE GUIDE