A BNB Chain candle can change later when the chart corrects which trades belong in its time period. If you trade from your own wallet, the chart is a summary of on-chain records, and that summary can update as records settle or get reprocessed.
What does a candle actually measure?
A candle groups trades for one token pair over a set time, such as one minute or one hour. It shows the first, highest, lowest, and last price in that period, plus often the traded volume.
On a decentralised exchange, a trade changes the token amounts held by a trading pool, which is a contract that swaps between two tokens. The pool’s relative balances set its price. The trade’s transaction can emit a log, a small record of what the contract did. A chart service reads those logs and turns swaps into prices.
That means a candle is calculated from records; it is not itself a permanent on-chain object. If a log is missing, duplicated, or later marked as removed, the calculated candle may change even though your wallet history looks unchanged.
Why can the underlying records change?
A transaction first enters a block, but a block may not be final straight away. Finality means the network has settled on that block as part of its lasting history. In a rare chain reorganisation, a competing block replaces a recent one, and transactions from the displaced block may be included again or left out.
BNB Chain’s documentation describes fast finality within two blocks when enough validators vote normally; at the documented 0.45-second block time, that is about 1.125 seconds. If votes are insufficient, the chain can rely on probabilistic finality, where more confirmations increase confidence. The Ethereum JSON-RPC standard, which BNB Smart Chain follows closely, also defines a “removed” log flag for logs displaced by a reorganisation.
There is a second route to a correction: the chain record stays the same, but a data service catches up or fixes its indexing. An indexer is software that collects and organises blockchain records. It may add a missed swap, discard a duplicate, or recalculate a token amount before redrawing the candle.
How do you trace a changed candle?
Start with the candle’s time window and the exact token pair. Then compare the chart’s price move with the swaps in that window. PooCoin is one way to inspect BNB Smart Chain token charts and wallet activity; its chart can help you spot the time and size of a move before you check the underlying transactions.
For example, suppose a one-minute candle briefly shows a token rising from $0.10 to $0.14, then later closes at $0.11. A large swap may have landed near the minute boundary, then been removed during a reorganisation. Or the chart may have initially counted the swap twice and corrected its data afterward.
- Write down the token pair and candle interval shown on the chart.
- Note the candle’s start and end time, including the time zone if available.
- Find the swaps recorded during that period, using each transaction’s time and hash, its unique identifier.
- Compare the swap amounts and pool balances with the candle’s high, low, and volume.
- Check whether the relevant blocks are finalized, then refresh the chart after the indexer has had time to catch up.
For a useful comparison, match the same pair, time interval, and time zone. A chart can look different simply because its candles start at different minute boundaries. A wallet view can confirm that your own swap occurred, but it does not show every trade that shaped the pair’s candle.
When should you trust the revised candle?
Give more weight to a candle supported by finalized blocks and transaction logs that remain valid. If the candle changes again, or its volume does not match the underlying swaps, treat it as provisional and recheck later.
A corrected candle explains what the recorded trades show; it does not prove a token is safe. If you are doing a rug check—a review for signs that a token or its creators may be unsafe—also examine liquidity and who controls the token contract. PooCoin can provide useful chart and wallet context, but the on-chain evidence should decide whether the candle reflects a real trade.
Decision rule: trust the revised candle when its price and volume match valid swaps in finalized blocks.