Peter Goodspeed-Niklaus
49be0579db
* Add PJR challenge functions - Updates the PJR check to return a counterexample if one exists - Adds functions to cheaply check counterexamples This is in support of off-chain PJR challenges: if a miner discovers that an accepted election solution does not satisfy PJR, it will be eligible for substantial rewards. This helps ensure that validator elections have an absolute quality floor, so even if someone manages to censor well-behaved solutions to give themselves unfair representation, we can catch them in the act and penalize them. * counterexample -> counter_example * reorganize: high -> low abstraction * reorganize challenges high -> low abstraction * add note justifying linear search * Simplify max_pre_score validation Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com> * add minor test of pjr challenge validation Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Substrate · 
Substrate is a next-generation framework for blockchain innovation 🚀.
Trying it out
Simply go to substrate.dev and follow the installation instructions. You can also try out one of the tutorials.
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Please follow the contributions guidelines as outlined in docs/CONTRIBUTING.adoc. In all communications and contributions, this project follows the Contributor Covenant Code of Conduct.
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sp-*), Frame (frame-*) and the pallets (pallets-*), binaries (/bin) and all other utilities are licensed under Apache 2.0. - Substrate Client (
/client/*/sc-*) is licensed under GPL v3.0 with a classpath linking exception.
The reason for the split-licensing is to ensure that for the vast majority of teams using Substrate to create feature-chains, then all changes can be made entirely in Apache2-licensed code, allowing teams full freedom over what and how they release and giving licensing clarity to commercial teams.
In the interests of the community, we require any deeper improvements made to Substrate's core logic (e.g. Substrate's internal consensus, crypto or database code) to be contributed back so everyone can benefit.