Posts

Why Does My Token Balance Change After Bridging?

A bridged token balance can differ because the bridge limits precision, charges a token-denominated relayer fee, or delivers a wrapped representation with different decimals. For an integration, compare the raw amount delivered with the amount requested, then convert each using the decimals of the actual token contract on its own chain. A matching symbol alone does not prove the two balances represent the same asset. That distinction matters when comparing a general bridge transfer with Portal Bridge cross-chain transfers : the displayed amount is only useful when you know which token contract was received and how the transfer encoded its quantity. Portal Bridge uses Wormhole’s token-transfer mechanism, whose whitepaper describes an eight-decimal precision limit. The limit can leave a small remainder for tokens with more than eight decimals. Precision and fees explain most amount differences Wormhole normalizes transfer amounts to at most eight decimal places before encoding them. For ...
Post a Comment
Read more

How to Fund a Wallet Purchase on Another Chain

Check which chain and token the asset seller accepts before moving funds. This comes first because the same token name can refer to different assets on different chains. What token and network do you need? You need funds on the buyer app’s network, in a form that app accepts. A wallet can hold the same-looking token on several networks, but those balances are separate. Open the buying app and note its network and payment token. Check the network name and, if shown, the token’s contract address. A contract address is the token’s unique on-chain identifier. Check which wallet holds your funds and on which network. For example, Maya has USDC on Ethereum and wants to buy an item from an app on Solana. She must confirm the app accepts the exact USDC version she plans to send. Keep some of the network’s own coin for fees. You need it to pay for transactions on the source chain; you may also need it on the destination chain to make the purchase. On Ethereum, that means ETH; on Solana, SOL....
Post a Comment
Read more

Why Does Polygon Bridge Need Two Withdrawal Steps?

A Polygon Bridge withdrawal needs two steps because Ethereum must verify the Polygon transaction before releasing your tokens. You start the withdrawal on Polygon, wait for a checkpoint, then claim the tokens on Ethereum. If this is your first time, the gap between those steps can make a normal transfer look stuck. The first transaction burns your bridged tokens on Polygon. A checkpoint lets Ethereum verify that burn; it often takes around 30 minutes to a few hours. You must submit a second transaction on Ethereum, which needs ETH for its network fee. What happens after you start? First, the bridge burns the tokens on Polygon. “Burn” means the bridge removes those tokens from circulation on that network. After the burn, your wallet no longer shows them there, but the Ethereum tokens are not ready yet. On Polygon Bridge, the next step depends on a checkpoint. Validators group recent Polygon blocks and submit a checkpoint to Ethereum. A checkpoint is a record that lets Ethereum check tha...
Post a Comment
Read more

Why Can a Partial Fill Leave Dust in Your Wallet?

A partial fill can leave tokens behind because the remaining amount may be too small to settle economically, or the market may no longer meet your limit price. The unfilled tokens stay in your wallet; the order may remain open until it expires or you cancel it. What does a partial fill leave behind? A partial fill means only part of your order traded. For example, if you place a limit order to sell 100 tokens and 63 are sold, you receive the agreed buy tokens for those 63, and 37 sell tokens remain. The order can still be available for further fills if it is open and the price conditions are met. Think of the order like a standing request to sell from a basket: each successful fill takes some tokens out, while the rest stays in the basket. In this case, the basket is your wallet. The tokens are not locked in a contract while the order waits, though the order gives the protocol permission to use the specified amount if it settles. Your wallet tells you how many tokens remain, while the ...
Post a Comment
Read more

Biswap slippage: set a safer limit for your first swap

For a routine swap, start with 0.5% slippage tolerance: if the quote is 1,000 tokens, this sets roughly 995 as the minimum you will accept. A low limit can make a trade fail if the price moves before it is processed; a high one can let it complete at a worse price. Treasury swaps and pooled liquidity explain how a venue supports trading; what Biswap does with treasury swaps covers that side, while slippage tolerance protects the amount in your own trade. If you are used to a centralised exchange, think of it as a price boundary attached to your order. Slippage tolerance sets your minimum output Slippage tolerance is the largest difference you will accept between the quoted output and the output when the swap executes. A smart contract, the code that carries out the trade, checks this limit before sending your tokens. For example, if the quote is 1,000 tokens and your tolerance is 0.5%, the minimum output is 995. If the pool can provide only 994 by the time the trade runs, it rejects t...
Post a Comment
Read more

How to Estimate Cross-Chain Fees Before You Send

Add the source fee, bridge fee, and destination fee. A quote may combine some of them, so check what it includes before comparing routes. What fees make up the total? The source fee pays to start the transfer. It is usually a network fee, called gas: the cost of processing a transaction on a blockchain. The destination fee pays to complete it there, and may be charged in the destination chain’s token. A bridge or relayer may also charge a service fee. A relayer is a service that carries transfer instructions between chains. If your route swaps tokens, add the swap fee and slippage—the difference between the quoted and final exchange rate. For example, say a route shows $1.20 for the source transaction, $0.80 for the bridge service, and $0.50 to complete the destination transaction. Your total is about $2.50, before any separate swap fee or price change. How do you compare routes fairly? Compare the amount you will receive, not just the headline fee. Check whether the quote includes des...
Post a Comment
Read more