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Robert Habermeier
ec98120f0e
* disputes module skeleton and storage * implement dispute module initialization logic * implement disputes session change logic * provide dispute skeletons * deduplication & ancient check * fix a couple of warnings * begin provide_dispute_data impl * flesh out statement set import somewhat * move ApprovalVote to shared primitives * add a signing-payload API to explicit dispute statements * implement statement signature checking * some bitflags glue for observing changes in disputes * implement dispute vote import logic * flesh out everything except slashing * guide: tweaks * declare and use punishment trait * punish validators for inconclusive disputes * guide: tiny fix * guide: update docs * add disputes getter fn * guide: small change to spam slots handling * improve spam slots handling and fix some bugs * finish API of disputes runtime * define and deposit `RevertTo` log * begin integrating disputes into para_inherent * use precomputed slash_for/against * return candidate hash from process_bitfields * implement inclusion::collect_disputed * finish integration into rest of runtime * add Disputes to initializer * address suggestions * use pallet macro * fix typo * Update runtime/parachains/src/disputes.rs * add test: fix pruning * document specific behavior * deposit events on dispute changes * add an allow(unused) on fn disputes * add a dummy PunishValidators implementation * add disputes module to Rococo * add disputes module to westend runtime * add disputes module to test runtime * add disputes module to kusama runtime * guide: prepare for runtime API for checking frozenness * remove revert digests in favor of state variable * merge reversions * Update runtime/parachains/src/disputes.rs Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com> * Update runtime/parachains/src/disputes.rs Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com> * Update runtime/parachains/src/disputes.rs Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com> * add byzantine_threshold and supermajority_threshold utilities to primitives * use primitive helpers * deposit revert event when freezing chain * deposit revert log when freezing chain * test revert event and log are generated when freezing * add trait to decouple disputes handling from paras inherent handling * runtime: fix compilation and setup dispute handler * disputes: add hook for filtering out dispute statements * disputes: add initializer hooks to DisputesHandler * runtime: remove disputes pallet from all runtimes * tag TODOs * don't import any dispute statements just yet... * address grumbles * fix spellcheck, hopefully * maybe now? * last spellcheck round * fix runtime tests * fix test-runtime Co-authored-by: thiolliere <gui.thiolliere@gmail.com> Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com> Co-authored-by: André Silva <andrerfosilva@gmail.com>
Preamble
This document aims to describe the purpose, functionality, and implementation of the host for Polkadot's parachains functionality - that is, the software which provides security and advancement for constituent parachains. It is not for the implementer of a specific parachain but rather for the implementer of the Parachain Host. In practice, this is for the implementers of Polkadot in general.
There are a number of other documents describing the research in more detail. All referenced documents will be linked here and should be read alongside this document for the best understanding of the full picture. However, this is the only document which aims to describe key aspects of Polkadot's particular instantiation of much of that research down to low-level technical details and software architecture.