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Updated phase 1: fork choice rule #586

Merged
merged 2 commits into from
Feb 10, 2019
Merged

Updated phase 1: fork choice rule #586

merged 2 commits into from
Feb 10, 2019

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vbuterin
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@vbuterin vbuterin commented Feb 8, 2019

Adds the crosslink committee to the fork choice rule. This is useful because it means that even if a proposal committee is byzantine and attempts to prevent a crosslink via a "balance attack" (alternating between chain A and chain B being the canonical chain), the crosslink committee can force the equilibrium to flip to one side or the other.

Adds the crosslink committee to the fork choice rule. This is useful because it means that even if a proposal committee is byzantine and attempts to prevent a crosslink via a "balance attack" (alternating between chain A and chain B being the canonical chain), the crosslink committee can force the equilibrium to flip to one side or the other.
@djrtwo
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djrtwo commented Feb 8, 2019

Is this saying to use the shard-attestations from the persistent committee + use the beaconchain-attestations from the current crosslink committee? It is not super clear in the current description that the fork choice would be using votes from these two separate sources (and data structures).

nitpick: We should use the term "persistent committee" imo rather than "proposal committee"

@vbuterin
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vbuterin commented Feb 8, 2019

Is this saying to use the shard-attestations from the persistent committee + use the beaconchain-attestations from the current crosslink committee?

Yes.

@djrtwo djrtwo added the phase1 label Feb 8, 2019
@JustinDrake JustinDrake merged commit abed5ff into dev Feb 10, 2019
@hwwhww hwwhww deleted the vbuterin-patch-10 branch March 29, 2019 06:02
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3 participants