uhash-core

UniversalHash v4 algorithm - a democratic proof-of-work hash function designed for mobile-friendly mining.

Features

• Mobile-optimized: 4 parallel chains match typical phone core count
• Memory-hard: 2MB scratchpad (4x512KB) prevents GPU advantage
• ASIC-resistant: Triple primitive rotation (AES + SHA256 + BLAKE3)
• No-std compatible: Works in WASM and CosmWasm environments
• Hardware accelerated: Uses ARM/x86 intrinsics when available

Performance

Phone-to-desktop ratio: 1:1.09 (far exceeds target of 1:3-5)

Usage

use uhash_core::{UniversalHash, meets_difficulty};

// Create a reusable hasher (allocates 2MB scratchpad)
let mut hasher = UniversalHash::new();

// Compute hash
let input = b"epoch_seed || miner_address || timestamp || nonce";
let hash = hasher.hash(input);

// Check if hash meets difficulty (number of leading zero bits)
if meets_difficulty(&hash, 20) {
    println!("Found valid proof!");
}

Algorithm Parameters

Features

• std (default): Enable standard library support
• parallel (default): Enable parallel chain processing via rayon

For no_std environments (WASM, CosmWasm):

[dependencies]
uhash-core = { version = "0.1", default-features = false }

License

Unlicense - Public Domain