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* Replace the old blockSubsidy parameters with the new ones. * Return subsidyGenesisReward if blockHash is the genesis hash. * Traverse a block's past for the subsidy calculation. * Partially implement SubsidyStore. * Refer to SubsidyStore from CoinbaseManager. * Wrap calcBlockSubsidy in getBlockSubsidy, which first checks the database. * Fix finalityStore not calling GenerateShardingID. * Implement calculateAveragePastSubsidy. * Implement calculateMergeSetSubsidySum. * Implement calculateSubsidyRandomVariable. * Implement calcBlockSubsidy. * Add a TODO about floats. * Update the calcBlockSubsidy TODO. * Use binary.LittleEndian in calculateSubsidyRandomVariable. * Fix bad range in calculateSubsidyRandomVariable. * Replace float64 with big.Rat everywhere except for subsidyRandomVariable. * Fix a nil dereference. * Use a random walk to approximate the normal distribution. * In order to avoid unsupported fractional results from powInt64, flip the numerator and the denominator manually. * Set standardDeviation to 0.25, MaxSompi to 10_000_000_000 * SompiPerKaspa and defaultSubsidyGenesisReward to 1_000. * Set the standard deviation to 0.2. * Use a binomial distribution instead of trying to estimate the normal distribution. * Change some values around. * Clamp the block subsidy. * Remove the fake duplicate constants in the util package. * Reduce MaxSompi to only 100m Kaspa to avoid hitting the uint64 ceiling. * Lower MaxSompi further to avoid new and exciting ways for the uint64 ceiling to be hit. * Remove debug logs. * Fix a couple of failing tests. * Fix TestBlockWindow. * Fix limitTransactionCount sometimes crashing on index-out-of-bounds. * In TrustedDataDataDAABlock, replace BlockHeader with DomainBlock * In calculateAveragePastSubsidy, use blockWindow instead of doing a BFS manually. * Remove the reference to DAGTopologyManager in coinbaseManager. * Add subsidy to the coinbase payload. * Get rid of the subsidy store and extract subsidies out of coinbase transactions. * Keep a blockWindow amount of blocks under the virtual for IBD purposes. * Manually remove the virtual genesis from the merge set. * Fix simnet genesis. * Fix TestPruning. * Fix TestCheckBlockIsNotPruned. * Fix TestBlockWindow. * Fix TestCalculateSignatureHashSchnorr. * Fix TestCalculateSignatureHashECDSA. * Fix serializing the wrong value into the coinbase payload. * Rename coinbaseOutputForBlueBlock to coinbaseOutputAndSubsidyForBlueBlock. * Add a TODO about optimizing trusted data DAA window blocks. * Expand on a comment in TestCheckBlockIsNotPruned. * In calcBlockSubsidy, divide the big.Int numerator by the big.Int denominator instead of converting to float64. * Clarify a comment. * Rename SubsidyMinGenesisReward to MinSubsidy. * Properly handle trusted data blocks in calculateMergeSetSubsidySum. * Use the first two bytes of the selected parent's hash for randomness instead of math/rand. * Restore maxSompi to what it used to be. * Fix TestPruning. * Fix TestAmountCreation. * Fix TestBlockWindow. * Fix TestAmountUnitConversions. * Increase the timeout in many-tips to 30 minutes. * Check coinbase subsidy for every block * Re-rename functions * Use shift instead of powInt64 to determine subsidyRandom Co-authored-by: Ori Newman <orinewman1@gmail.com>
Kaspad
Warning: This is pre-alpha software. There's no guarantee anything works.
Kaspad is the reference full node Kaspa implementation written in Go (golang).
This project is currently under active development and is in a pre-Alpha state. Some things still don't work and APIs are far from finalized. The code is provided for reference only.
What is kaspa
Kaspa is an attempt at a proof-of-work cryptocurrency with instant confirmations and sub-second block times. It is based on the PHANTOM protocol, a generalization of Nakamoto consensus.
Requirements
Go 1.16 or later.
Installation
Build from Source
-
Install Go according to the installation instructions here: http://golang.org/doc/install
-
Ensure Go was installed properly and is a supported version:
$ go version
- Run the following commands to obtain and install kaspad including all dependencies:
$ git clone https://github.com/kaspanet/kaspad
$ cd kaspad
$ go install . ./cmd/...
- Kaspad (and utilities) should now be installed in
$(go env GOPATH)/bin. If you did not already add the bin directory to your system path during Go installation, you are encouraged to do so now.
Getting Started
Kaspad has several configuration options available to tweak how it runs, but all of the basic operations work with zero configuration.
$ kaspad
Discord
Join our discord server using the following link: https://discord.gg/YNYnNN5Pf2
Issue Tracker
The integrated github issue tracker is used for this project.
Issue priorities may be seen at https://github.com/orgs/kaspanet/projects/4
Documentation
The documentation is a work-in-progress
License
Kaspad is licensed under the copyfree ISC License.