Internal tool. Unlock to generate and decode seals. Recommended: serve over HTTPS (crypto.subtle requires a secure context).
Incorrect password.
Cipher 17
Generate and decode TOC seals. Encodes date in center hex, project ID and revision in ring markers.
Unlocked
Encoding:
• Center hex encodes date: R=0x10+YY, G=0x10+MM, B=0x10+DD
• Project ID P encoded as two ticks on 17-grid: hi=floor(P/17), lo=P mod 17
• Revision encoded as 1–4 dots at 6 o'clock
• Optional discipline encoded as a dot snapped to 17-grid on orbit ring
Decoding assumes the original exported seal image. If the seal was flattened onto a background or resized with heavy compression, results can drift.