Engineering evidence · immutable references

Claims pinned to commits.

Every SVG below is loaded from a raw GitHub URL containing a full 40-character commit SHA. Later branch changes cannot silently rewrite these artifacts.

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Homefront Universe

Deterministic space-RTS engine · WebGL2 + hand-written GLSL · repository

checksum-stampedseed 13370 runtime dependenciesheadless reproducible
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t = 0 · checksum 4177652866 · 3 factions × 12 ships
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t = 1500 · checksum 467772105
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t = 3000 · checksum 985466095 · first engagement resolved

Reproduce

git clone https://github.com/umutseve4/homefront-universe
cd homefront-universe
git checkout 7a41e1ccba1f33966b3af1d1331f84de59afb892
node tools/headless.mjs 1337 3 3000
# expected: checksum=985466095
EvidenceImmutable commit
SVG renderere0c6267938a5927d048095874d57a97a706cbd90
3 checksum-stamped frames7a41e1ccba1f33966b3af1d1331f84de59afb892
README proof section95bb3ded49fb5ab84f4a5261bba0dd42f81b768b

Data Economic Lab

Reproducible Turkish macro-data pipeline · ingest → validate → SQLite → analyze → report · repository

Loading pinned artifact…
CPI level
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Policy rate level
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USD/TRY level
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Year-over-year comparison
EvidenceImmutable commit
Pipeline-rendered figures + README proof520aaa1caf7aaac25b86c82106d57c97af1fba96

Audit boundary: commit pinning proves artifact identity. It does not independently prove the data source’s present freshness or production availability.