Robert Habermeier
e2960c383e
* more clear randomness API for BABE * babe: move randomness utilities to its own file * node: use babe::RandomnessFromOneEpochAgo in random_seed implementation * frame-support: annotate randomness trait with block number * pallet-randomness-collective-flip: fix for new randomness trait * pallet-society: fix randomness usage * pallet-lottery: fix randomness usage * pallet-contracts: fix randomness usage * pallet-babe: fix randomness usage we need to track when the current and previous epoch started so that we know the block number by each existing on-chain was known * node: fix random_seed * node-template: fix random_seed * frame-support: extend docs * babe: add test for epoch starting block number tracking * babe: fix epoch randomness docs * frame: add todos for dealing with randomness api changes Co-authored-by: André Silva <andrerfosilva@gmail.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.
Contributions & Code of Conduct
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.
Security
The security policy and procedures can be found in docs/SECURITY.md.
License
- Substrate Primitives (
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.