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Codec live · Mirror Fractal Lab · Valencia / Global MMXXVI · v1.1.0

Part is pattern. Pattern is whole.

A private research lab working at the edge of data compression, neuromorphic vision and computational geometry. One recurring principle, studied across many domains: the shape of the part already knows the shape of the whole.

Recursion Self-similarity Symmetry Compression Fixed points Sparse geometry Neuromorphic vision Lossless codecs Patent pending

Every project here starts from a single observation — that in many systems the local already contains the global. Compression, vision, signal, form. When you find the right axis of symmetry, the data stops being data. It becomes pattern. And patterns carry themselves.

One is live.
Four on the way.

01 / live · 04 / soon
02 · Format Soon

.frac

frac.mirrorfractal.com

A spatial container format for drawings, diagrams and layered geometric data. Progressive delivery, browser-native viewer, small footprint. Built for architecture, PCB, medical imaging — anything hierarchical that needs to travel through a narrow pipe.

frac · mirrorfractal.com
03 · LLM Soon

The LLM

llm.mirrorfractal.com

A compression library for neural-network weights. Treats each parameter group as a branching decision tree to squeeze large language models into places they currently don't fit — smaller devices, narrower memory, tighter latency budgets — without the usual accuracy cliff.

llm · mirrorfractal.com
04 · Stream Soon

The Stream

stream.mirrorfractal.com

A transport layer tuned for progressive, quality-aware content delivery. Content arrives in meaningful layers — coarse first, refined later — so that every byte already says something useful about the whole. Target workloads: live medical imaging, engineering drawings, map tiles.

stream · mirrorfractal.com
05 · Fuzzy Soon

The Fuzzy

fuzzy.mirrorfractal.com

An approximate retrieval engine for noisy, partial or imprecise queries. Same recursive idea as the rest of the lab — build the lookup path out of self-similar branches so that imperfect input still lands close to the right neighbourhood.

fuzzy · mirrorfractal.com

Archived, reviewed,
patent pending.

We publish. Preprints land on open archives so that the work is dated, readable, and independently verifiable. Binary distributions ship through the usual package registries. A provisional patent is on file for the method underlying the codec; commercial licensing is available directly.

See all research
Compression
47.6×
N-MNIST, lossless
Bits / event
1.51
bit-exact round-trip
Latency
<0.1ms
native, per sample
Targets
x86 · arm · wasm
CPython 3.11 wheels

Start a conversation.

Collaborations, licensing, residencies, technical questions — all of it lands in the same inbox. We usually reply within a few days.

Write to the lab
"Every structure carries a smaller version of itself. We build the tools that listen for it."
— Studio principle, MMXXVI
01 · Thesis

Recursion over compression.

We don't chase ratios. We look for the axis along which data folds onto itself — and let the folding do the work. Ratios are a consequence, not a target.

02 · Method

Slow, deliberate.

Experiments first, tools second, products third. Nothing ships until a bit-exact round-trip passes. Nothing becomes a product until it has at least one real user who pays for it.

03 · Stance

Open enough. Protected enough.

Preprints public, binaries shipped, patents filed. The internals that matter stay internal. The parts that help people evaluate the work go out into the open.

04 · Scope

Many domains, one idea.

Compression. Neuromorphic vision. Sparse geometry. Neural-network weights. Approximate search. Surface level they look unrelated; underneath there is only one pattern.

05 · Craft

The math must ship.

A theorem is worth nothing until it is code someone can run. A benchmark is worth nothing until it is reproducible on a laptop. Theory ships as software or it doesn't ship.

06 · Ethic

Verifiable by anyone.

Every claim we publish comes with a way to check it. No trust-us numbers. Every headline benchmark is replayable against public data — or it is not a benchmark, it is marketing.

A

Aleksei Solonskii

Founder · Research

Independent researcher. Works on compression, neuromorphic sensors, and applied geometry. Autónomo in Valencia, Spain.

A small lab, by design.

Mirror Fractal is, for now, deliberately a one-person operation. The only way to hold a single idea steady across many domains is to keep the organisation small enough that the idea doesn't blur.

We collaborate with other researchers, with engineering partners, and with end users who are willing to try things that aren't yet on anyone's roadmap. We don't scale headcount. We scale what we know.

If you'd like to work on a problem together — industrial partners, PhD candidates looking for a weird co-author, or anyone with neuromorphic data they can't compress — the door is open.

Write to the lab
Codec · Compression
47.6×
N-MNIST benchmark
Bits per event
1.51
bit-exact round-trip, 60 000 samples
Automotive (DSEC)
9.2×
7.8 bits/event
Throughput
<0.1ms
per N-MNIST sample, native
April 2026

Mirror Fractal Codec v0.3.28

Lossless compression for neuromorphic event-camera streams. Python wheels for Linux / macOS arm64 / Windows. WebAssembly build powering the browser demo. Preprint and manuscript archived with DOI.

Published DOI: 10.5281/zenodo.19704064 Zenodo
April 2026

mfc-codec on PyPI

pip install mfc-codec. Pre-built wheels for CPython 3.11, evaluation and academic-use license. The surface API is tiny on purpose: encode(events) → bytes, decode(bytes) → events.

Published PyPI
April 2026

Browser demo

WASM build running in the browser, no install needed. Drop a .npy event file and watch the bit-exact round-trip and the resulting compression ratio in real time.

Live WebAssembly
April 2026

US Provisional Patent filed

US Provisional No. 64/034,974. Covers the method underlying the codec. PCT filing will follow within the 12-month priority window. Commercial licensing available — contact the lab.

Patent pending USPTO
Q2 2026

.frac container — preview

Spatial container format for layered geometric data. Aiming for a public preview and a browser-native viewer in Q2. Preprint to follow.

Upcoming
Q3 2026

LLM weight compression — first results

Internal ablations underway on a small-model test bench. First external benchmarks expected mid-year.

Upcoming

Where the work lives.

We publish in places that don't disappear. DOIs at CERN-hosted Zenodo. Python wheels on PyPI. Public mirrors on GitHub. Preprints — arXiv when the numbers are ready and the patent filings permit.

Read the preprint
.