Rare Git Hashes

A web tool explores the rarity of seven-byte Git commit hashes by defining readable or interesting patterns - English words (including leetspeak), repeated characters or sequences, palindromes, ascending/descending digit runs, and tiled motifs - and assigning rarity tiers by observed drop rates. Hashes are scored by scanning every run of 3-7 characters and stacking non-overlapping pattern matches; the probability of the rarest stack divided by 16^7 yields its frequency. An interactive 268,435,456-square hex map visualizes the space, sample hashes are scored (e.g., baaabbb matches multiple repeat and palindrome patterns), and a forge function generates commits at chosen rarity tiers from common up to mythic.

The implementation runs fully in the browser: a Web Worker recounts all 16^7 possibilities and records stacks in a 2^28-bit table so tier thresholds can be adjusted without recounting, and rules compile to a GLSL shader to compute scores on the GPU for visible regions. The pattern set includes repeat(k,n), tile(m,n), palindrome(n), steps(n), and word(w,n) with a wordlist of 44 plain and 143 leet words (294 spellings). Tier sizes are concrete: mythic 507, legendary 8,319, epic 167,411, rare 2,068,053, uncommon 15,060,151, and common the remaining 251,131,015 hashes.