### What happened? In Ethereum, transaction Receipt Trie contains status and logs of a transaction organized in a trie structure. The receipt data resides in the state database and the root hash is stored in the block header. The logs in the trie are inserted in emision order. We have found an issue in the tracer where the logs where returned in a wrong order (not emision order). This issue directly affects the value of the hash of the Transactions Receipts Trie. The hash is computed the following way: ``` Hash(log_0, log_1, log_2) ``` If the logs are not correclty ordered, it directly affects the hash value. ### Solution After fixing the issue we have to resynch all the blockchain to recompute all the blockhash with the correct receipt root value. No balances or state values have been affected. Only the block hash computed by the nodes will change.