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asynchronous rob fc4b04db20 Prepare for network protocol version upgrades (#5084 )

* explicitly tag network requests with version

* fmt

* make PeerSet more aware of versioning

* some generalization of the network bridge to support upgrades

* walk back some renaming

* walk back some version stuff

* extract version from fallback

* remove V1 from NetworkBridgeUpdate

* add accidentally-removed timer

* implement focusing for versioned messages

* fmt

* fix up network bridge & tests

* remove inaccurate version check in bridge

* remove some TODO [now]s

* fix fallout in statement distribution

* fmt

* fallout in gossip-support

* fix fallout in collator-protocol

* fix fallout in bitfield-distribution

* fix fallout in approval-distribution

* fmt

* use never!

* fmt

2022-04-21 16:34:59 +00:00

availability-distribution.md

Revert loop prevention (#4472 )

2021-12-13 12:20:49 +01:00

availability-recovery.md

Prepare for network protocol version upgrades (#5084 )

2022-04-21 16:34:59 +00:00

bitfield-distribution.md

Network Bridge Refactoring (#1535 )

2020-08-05 09:04:05 +00:00

bitfield-signing.md

Revert loop prevention (#4472 )

2021-12-13 12:20:49 +01:00

README.md

I am dumb and can't spell (#1366 )

2020-07-07 10:10:36 -04:00

README.md

Availability Subsystems

The availability subsystems are responsible for ensuring that Proofs of Validity of backed candidates are widely available within the validator set, without requiring every node to retain a full copy. They accomplish this by broadly distributing erasure-coded chunks of the PoV, keeping track of which validator has which chunk by means of signed bitfields. They are also responsible for reassembling a complete PoV when required, e.g. when a fisherman reports a potentially invalid block.