EMIR HÜSEYİN İNCİ / SYSTEMS & DATA INFRASTRUCTURE

Emir Hüseyin İnci

Systems & Data Infrastructure Engineer

I design and build deterministic execution kernels, Arrow-native data tools, and low-latency runtimes where correctness is proven by construction.

A / CORE ARTIFACTS

Three systems. Each with a reproducible boundary.

source / method / result
01 / STABLE / 0.6.1

Calybris Core

Deterministic, fixed-point decision kernel.

catalog + policy + request → decision + audit bundle
kernel latency
~115 ns / decision ↗
numeric path
0 floating point
budget invariant
Loom + Miri checked
$ cargo add calybris-core@0.6.1
02 / ALPHA / 0.7.2

ProofFrame

Arrow-native contract and verification engine.

Arrow batches + contract + limits → report + evidence
execution
bounded RAM + spill
dataset identity
BLAKE3 fingerprints
receipt
Ed25519, optional
schedulers
Airflow + Dagster
$ pip install proofframe==0.7.2
03 / ACTIVE ALPHA / 0.1

ReproCut

Hierarchical delta debugging and AST reduction.

failing project + oracle → verified minimal reproducer
syntax surface
8 languages
fixture
18 → 3 files
verification
3 / 3 preserved
$ cargo install --git https://github.com/emirhuseynrmx/reprocut reprocut-cli --locked

B / ENGINEERING NOTES

Measured, dated, and corrected in public.

question / method / finding
16 SEP 2026RESEARCH / FORECASTINGHow many days ahead is a weather forecast worth trusting?

7,358,400 archived forecasts scored against a guess that needs no model, across thirty Turkish cities and two years.

8 of 30cities where the rain forecast never wins9 min →
16 SEP 2026RESEARCH / QUANTThe best of 1,000 coin flips beat my best trading rule

Eight measurements closing a search for an edge in FX bars, including the three times a measurement caught me believing something that was not there.

90thpercentile of pure noise11 min →
16 SEP 2026NOTE / PROOFFRAMEThe stamp covered the worker, not the engine

A released page reported the previous version. The served bytes were correct and the cache-busting stamp was working exactly as written.

1 of 3files the stamp actually covered7 min →
16 SEP 2026DESIGN / AEGISThe uplift number my own product refuses to use

The bundled churn dataset records no treatment assignment, so uplift computed on it describes the generator rather than the customer.

0treatment rows, so the number is not spent6 min →
16 SEP 2026DESIGN / AERAA reviewer that cannot say what is right

Four decisions about the critic stage of an agent pipeline, and what each one costs. The weak one is marked as weak.

3 of 4fail closed; the fourth is a guess6 min →
all notes, including the earlier RFCs →Turkish versions on the design notes

C / STATUS

16 Sep 2026
calybris-core  0.6.1  ~115 ns / decision
proofframe     0.7.2  Airflow + Dagster, browser WASM
reprocut       0.1    3 / 3 final verification

Claims name the code path, fixture, and boundary. No end-to-end latency is implied.

Correctness is not a claim at the end of the page.
It is an invariant carried through every decision, byte, and replay.