SPV-256 — Seed Phrase Visualizer 256 bit

SPV-256 is the world's first visualizer for BIP39 seed phrases.
A visual tool that transforms cryptographic entropy into pixel art.
Each PNG is the 64-character hex entropy of 
a 24-word BIP39 Seed Phrase.
Instructions
Draw your 256-bit entropy using the pixel grid. 
You can choose colors for 1, 0, and the grid; 1 must be darker than 0.
Input a 64-character hex to visualize the entropy and seed phrase.
Or enter a 24-word BIP39 seed phrase to visualize its entropy.
Invalid seed phrases will not be visualized.
PNG (323×323 px) export doesn’t work on the blockchain.
Exported PNG file is only 6–7 KB and can be losslessly compressed 
to ~350 bytes (–95%).
Visit the website to save PNG or download full code
from this inscription.
Airgap-ready
Works fully offline — no internet required.
The BIP39 wordlist is integrated.
You can generate a secure Seed Phrase by flipping a coin 256 times.

Website: www.crownspv.com
Twitter: @crownspv
GitHub: github.com/crownspv/seed-phrase-visualizer-256
License: CC BY 4.0 — creativecommons.org
License for "Complete Metamorphosis": www.crownspv.com/licenses
Manifest "Complete Metamorphosis": 
www.crownspv.com/manifest-complete-metamorphosis

Contact: [email protected]

BTC: bc1pgzuavsxadgudktkl8wjt9jqlxy2srh4cwgsa8s2cu4a9yuv97nqstzpuj4
  
Author: Aleksandr Yashchuk (2025)