zhang

developer

About

I’m a computer vision algorithm engineer working at the intersection of models, systems, and real-world constraints. I care about: What works beyond benchmarks Robustness, deployment, and edge cases How AI systems behave in complex environments Here to share ideas, learn from builders, and ship thoughtful AI products.

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Tastemaker

Gone streaking 10

Gone streaking

Gone streaking 5

Maker History

Pixel ChainA pixel editor where SHA-256 decides your colors
Aug 2026

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Joined Product HuntDecember 12th, 2025

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2d ago

Pixel Chain - A pixel editor where SHA-256 decides your colors

Pixel Chain is a pixel-art editor with one rule: from the second cell on, a color is legal only if SHA-256 of everything you've painted plus that color ends in enough trailing zero bits. Level 1 needs 11, level 10 needs 20 — each level roughly halves what survives. Every stroke sweeps all 16,777,216 RGB values and hands you the nearest color the chain will accept. The seed is only width, height and level, so the same piece rebuilds the same chain on anyone's phone.