99 - Motivation and deployment of consensus rule changes ([soft/hard]forks)
BIP: 99 source Title: Motivation and deployment of consensus rule changes ([soft/hard]forks) Authors: Jorge Timón Status: Closed Type: Informational Assigned: 2015-06-20 License: PD Discussion: http://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-June/008936.html Table of ContentsAbstractMotivationDefinitionsTaxonomy of consensus forksAccidental consensus fork11/12 March 2013 Chain ForkUnilateral softforksSchism hardforksASIC-reset hardforkAnti-Block-creator hardforkAnti-cabal hardforkUncontroversial consensus upgradesUncontroversial softforksUncontroversial hardforksUncontroversial emergency hardforksCodeFootnotesAttributionCopyright Abstract This BIP attempts to create a taxonomy of the different types of consensus forks and proposes a deployment mechanism for each of them. Motivation The security assumptions of p2p consensus-based systems like Bitcoin are not always well-understood, and the best upgrade mechanisms to the consensus validation rules may vary de...
123 - BIP Classification
BIP: 123 source Title: BIP Classification Authors: Eric Lombrozo Status: Deployed Type: Process Assigned: 2015-08-26 License: CC0-1.0 OR FSFAP Table of ContentsAbstractCopyrightMotivationSpecification1. Consensus LayerSoft ForksHard Forks2. Peer Services Layer3. API/RPC Layer4. Applications LayerClassification of existing BIPs Abstract This document describes a classification scheme for BIPs. BIPs are classified by system layers with lower numbered layers involving more intricate interoperability requirements. The specification defines the layers and sets forth specific criteria for deciding to which layer a particular standards BIP belongs. Copyright This BIP is dual-licensed under the Creative Commons CC0 1.0 Universal and FSF All Permissive licenses. Motivation Bitcoin is a system involving a number of different standards. Some standards are absolute requirements for interoperability while others can be considered optional, giving implementers a choice of whether to su...