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path: root/src/consensus/params.h
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2017-01-27[trivial] Fix typos in commentspracticalswift
2017-01-13Introduce assumevalid setting to skip presumed valid scripts.Gregory Maxwell
This disentangles the script validation skipping from checkpoints. A new option is introduced "assumevalid" which specifies a block whos ancestors we assume all have valid scriptsigs and so we do not check them when they are also burried under the best header by two weeks worth of work. Unlike checkpoints this has no influence on consensus unless you set it to a block with an invalid history. Because of this it can be easily be updated without risk of influencing the network consensus. This results in a massive IBD speedup. This approach was independently recommended by Peter Todd and Luke-Jr since POW based signature skipping (see PR#9180) does not have the verifiable properties of a specific hash and may create bad incentives. The downside is that, like checkpoints, the defaults bitrot and older releases will sync slower. On the plus side users can provide their own value here, and if they set it to something crazy all that will happen is more time will be spend validating signatures. Checkblocks and checklevel are also moved to the hidden debug options: Especially now that checkblocks has a low default there is little need to change these settings, and users frequently misunderstand them as influencing security or IBD speed. By hiding them we offset the space added by this new option.
2016-12-31Increment MIT Licence copyright header year on files modified in 2016isle2983
Edited via: $ contrib/devtools/copyright_header.py update .
2016-11-02IBD check uses minimumchain work instead of checkpoints.Gregory Maxwell
This introduces a 'minimum chain work' chainparam which is intended to be the known amount of work in the chain for the network at the time of software release. If you don't have this much work, you're not yet caught up. This is used instead of the count of blocks test from checkpoints. This criteria is trivial to keep updated as there is no element of subjectivity, trust, or position dependence to it. It is also a more reliable metric of sync status than a block count.
2016-10-17Define start and end time for segwit deploymentPieter Wuille
2016-07-23Consensus: Remove ISMNicolasDorier
2016-06-22BIP141: Commitment structure and deploymentPieter Wuille
Includes a fix by Suhas Daftuar and LongShao007
2016-06-06Implement BIP 9 GBT changesLuke Dashjr
- BIP9DeploymentInfo struct for static deployment info - VersionBitsDeploymentInfo: Avoid C++11ism by commenting parameter names - getblocktemplate: Make sure to set deployments in the version if it is LOCKED_IN - In this commit, all rules are considered required for clients to support
2016-03-18Add CHECKSEQUENCEVERIFY softfork through BIP9Pieter Wuille
2016-03-15Add testing of ComputeBlockVersionSuhas Daftuar
2016-03-15BIP9 ImplementationPieter Wuille
Inspired by former implementations by Eric Lombrozo and Rusty Russell, and based on code by Jorge Timon.
2015-12-13Bump copyright headers to 2015MarcoFalke
2015-11-02Make skipping BIP30 check chain agnosticAlex Morcos
2015-10-19Added fPowNoRetargeting field to Consensus::Params that disables nBits ↵Eric Lombrozo
recalculation.
2015-04-20ensure consistent header comment naming conventionsPhilip Kaufmann
- BITCOIN_FOLDER_SUBFOLDER_FILENAME_H
2015-04-10consensus: don't use arith_uint256 in consensus.hCory Fields
Requiring arith_uint256 at such a base level is not good for modularity.
2015-03-25Consensus: Refactor: Introduce Consensus::Params classJorge Timón