Full XOR · 512 bytes

L2.X512.xor-1-len512

Native verification status · ○ open

What this result establishes

256-value first-byte sweep. Every first-byte value is tested for each of 1 cases over 256 epochs. The remaining input bytes are public deterministic samples. This does not exhaust all input strings or prove suffix independence.

Placement: New, uncalibrated milestone. A program passing a tighter XOR size cap also passes every looser cap with the same input sweep and step limit. How rank is interpreted.

Challenge

ladder rank: #34 (historical identifier L2)
family / transform: Transform / XorMask
cases: 1 case, 1 output byte each
limits: program ≤ 512 bytes, ≤ 2048 steps/case
task summary: Fit full single-byte XOR in 512 bytes.
exact contract: Registry JSON · L2.X512.xor-1-len512

Task notes

Fit full single-byte XOR in 512 bytes.

Earlier record notes

Retained for provenance; these notes may predate current calibration. See the verification scope and placement rationale above.

New compression milestone; no qualifying solution recorded.

Attempts

None recorded yet. Be the first — solved or not, a recorded attempt earns a mark here.

Attempt it

git clone https://github.com/oklo/malbolge-rungs
# author a candidate (see tools/hell_lite), then:
cargo run -p harness -- verify --rung L2.X512.xor-1-len512 --program your-candidate.mal --verbose