# Module ethcore::verification::verification [−] [src]

Block and transaction verification functions

Block verification is done in 3 steps 1. Quick verification upon adding to the block queue 2. Signatures verification done in the queue. 3. Final verification against the blockchain done before enactment.

## Structs

PreverifiedBlock | Preprocessed block data gathered in `verify_block_unordered` call

## Functions

verify_block_basic | Phase 1 quick block verification. Only does checks that are cheap. Operates on a single block
verify_block_family | Phase 3 verification. Check block information against parent and uncles.
verify_block_final | Phase 4 verification. Check block information against transaction enactment results,
verify_block_unordered | Phase 2 verification. Perform costly checks such as transaction signatures and block nonce for ethash. Still operates on a individual block Returns a `PreverifiedBlock` structure populated with transactions
verify_header_params | Check basic header parameters.

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