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Update eip-draft-returndata.md

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Nick Johnson 2017-10-09 08:40:53 +01:00 committed by GitHub
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EIPS/eip-draft-returndata.md
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@ -22,7 +22,7 @@ Full nodes can provide RPCs to get a transaction return status and value by repl
Instead, we propose to replace the intermediate state root, already obsoleted by EIP98, with the return status (1 for success, 0 for failure). This both allows callers to determine success status, and remedies the previous omission of return data from the receipt.
## Specification
For blocks where block.number >= METROPOLIS_FORK_BLKNUM, the intermediate state root is replaced by a status code, a single byte with 0 indicating failure (due to any operation that can cause the transaction or top-level call to revert) and 1 indicating success.
For blocks where block.number >= METROPOLIS_FORK_BLKNUM, the intermediate state root is replaced by a status code, 0 indicating failure (due to any operation that can cause the transaction or top-level call to revert) and 1 indicating success.
## Rationale
This constitutes a minimal possible change that permits fetching the success/failure state of transactions, preserving existing capabilities with minimum disruption or additional work for Metropolis.