Updates to Blocks and ABCI #338
Description
-
Add these fields to Block.Header:
TotalTxs int64- total number of txs sent up until this block (ie TotalTxs(H) = TotalTxs(H-1) + NumTxs(H-1))LastResultsHash []byte- merkle hash of the{code, data}of the previous block's tx resultsEvidenceHash []byte- merkle hash of the evidence included in the Block.Data.
-
Add these fields to Block.Data:
Evidence []ProofOfMalice- list of proofs of double signing or lock violation
-
Save this structure with every block:
type BlockExtra struct {
Proposal *Proposal
TxResults Results
ValidatorChanges []*tmsp.Validator
}
-
Add a new rpc call at
/block_extra?block=X -
Modify BeginBlock to take a
VoteInfotype so the app can punish Byzantine validators and effect consequences when commits don't contain votes from all validators:BeginBlock(hash []byte, header Header, voteInfo VoteInfo)
type VoteInfo struct {
// list of addresses of validators in the block.Evidence
ByzantineValidators [][]byte
// bit-array of validators who do not have a vote in the LastCommit
AbsentValidators *BitArray
}