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Greg Fitzgerald
2019-01-11 12:45:14 -07:00
parent 77a2f186ee
commit 3ab54b1591
1 changed files with 6 additions and 6 deletions
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book/src/block-confirmation.md
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@ -20,10 +20,10 @@ height of the block it is voting on. The account stores the 32 highest heights.
be baked into the fullnode code. The fullnode code queries the bank for all be baked into the fullnode code. The fullnode code queries the bank for all
accounts owned by the vote program. accounts owned by the vote program.
* Voting ballets do not contain a PoH hash. The validator is only voting that * Voting ballots do not contain a PoH hash. The validator is only voting that
it has observed an arbitrary block at some height. it has observed an arbitrary block at some height.
* Voting ballets do not contain a hash of the bank state. Without that hash, * Voting ballots do not contain a hash of the bank state. Without that hash,
there is no evidence that the validator executed the transactions and there is no evidence that the validator executed the transactions and
verified there were no double spends. verified there were no double spends.
@ -53,9 +53,9 @@ log the time since the NewBlock transaction was submitted.
Locktower is the proposed [fork selection](fork-selection.md) algorithm. It Locktower is the proposed [fork selection](fork-selection.md) algorithm. It
proposes that payment to miners be postponed until the *stack* of validator proposes that payment to miners be postponed until the *stack* of validator
votes reaches a certain depth, at which point rollback is not economically votes reaches a certain depth, at which point rollback is not economically
feasible. As it affects this proposal, it means that the vote program would feasible. The vote program may therefore implement locktower. Vote instructions
likely implement locktower. Vote instructions would need to reference a global would need to reference a global locktower account so that it can track
locktower account so that it can track cross-block state. cross-block state.
## Challenges ## Challenges
@ -74,5 +74,5 @@ we don't, then we have the option to allow stakes to float until a vote is
submitted. A validator could conceivably reference its own staking account, but submitted. A validator could conceivably reference its own staking account, but
that'd be the current account value instead of the account value of the most that'd be the current account value instead of the account value of the most
recently finalized bank state. The bank currently doesn't offer a means to recently finalized bank state. The bank currently doesn't offer a means to
referencing accounts from particular points in time. reference accounts from particular points in time.