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clarify slashing rules for double baking / endorsing.

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Arthur B 2018-11-23 13:49:04 +00:00
parent 4b6f471ead
commit 07a645069d
1 changed files with 16 additions and 9 deletions
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docs/whitedoc/proof_of_stake.rst
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@ -304,14 +304,21 @@ The seed of cycle ``(n-PRESERVED_CYCLES-2)`` is hashed with a constant
and then with each revelation of cycle ``(n-PRESERVED_CYCLES-1)``. and then with each revelation of cycle ``(n-PRESERVED_CYCLES-1)``.
Once computed, this new seed is stored and used during cycle ``n``. Once computed, this new seed is stored and used during cycle ``n``.
Denunciations Accusations
------------- -----------
If two endorsements are made for the same slot or two blocks at the same If two endorsements are made for the same slot or two blocks at the same
height by a delegate, this can be denounced. The denunciation would height by a delegate, the evidence can be collected by an accurser and included
typically be made by the baker, who includes it as a special operation. in a block for a period of PRESERVED_CYCLES, including the current cycle.
In a first time, denunciation will only forfeit the security deposit
for the doubly signed operation. However, over time, as the risk of This accusation forfeits the entirety of the safety deposit and future reward up
accidental double signing becomes small enough, denunciation will to that point in the cycle. Half is burned, half goes to the accuser in the form
forfeit the entirety of the safety deposits. Half is burned, and half is of a block reward.
added to the block reward.
In the current protocol, accusations for the *same* incident can be made several
times after the fact. This means that the deposits and rewards for the entire
cycle are forfeited, including any deposit made, or reward earned, after
he incident.
Pragmatically, any baker who either double bakes or endorses in a given cycle
should immediately stop both baking and endorsing for the rest of that cycle.