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Proof of History - Concepts in Go

 ________  ________  ___  ___         
|\   __  \|\   __  \|\  \|\  \        
\ \  \|\  \ \  \|\  \ \  \\\  \       
 \ \   ____\ \  \\\  \ \   __  \      
  \ \  \___|\ \  \\\  \ \  \ \  \ ___ 
   \ \__\    \ \_______\ \__\ \__\\__\
    \|__|     \|_______|\|__|\|__\|__| go!

Objective

Provide source-code concepts from the Solana whitepaper in Golang to understand proof-of-history and the mechanics behind Solana further.

Used as an exercise to understand Proof of History further by writing a simple implementation as described in the whitepaper.

Usage

make build

Build from source

./bin/poh-golang

Run a proof-of-history to generate the hashrate on a single core, and validate the results on all available CPU cores

CPU Cores 8
Generate Hashrate 1482625 p/sec (1-core)
Verify Hashrate 4701530 p/sec (8-cores)
Verify Hashrate 587691 p/core

Benchmarks

make bench

Simulate benchmarks to generate proof-of-history (POH) using a single core, and verify the output on multiple cores.

Roadmap

  • Calculate hashrate for POH generation (single core)
  • Calculate hashrate for POH validation (multiple cores)
  • Implement Solana hash table indexes for user addresses and packet payloads described in the whitepaper.
  • Add GPU support via Cuda implementation of SHA256
  • Synchronize multiple POH validators on the local network
  • Implement event signatures
  • Add basic Proof of Stake implementation as per the Solana whitepaper
  • Implement vote support for PoS implementation
  • Implement election for PoS and simulate PoH generator failure
  • Add PoH election support and secondary validator promotion
  • Implement Streaming proof of Replication using basic CBC encryption and XOR inputs