It is possible that Zapper is using a different source for their price feed than what is being used to generate the on-chain data. This could be due to a variety of factors, such as the exchange they are using to source the data, the data source they are using, or the frequency of updates. It is also possible that Zapper is using a different algorithm to calculate the prices, which could result in different values being displayed. It is important to note that the on-chain data should be the most accurate, as it is generated directly from the blockchain. Therefore, if there is a discrepancy between the values shown on Zapper and the on-chain data, it is likely that the Zapper values should be considered less reliable.
