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PayPal sandbox only. No real money moves.

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Open data

Five small datasets and an Evidence Explorer Space, live on Hugging Face, each labelled for what it is.

Page last changed 8 Nov 2026 (from the git history)

Status: published on Hugging Face. The five datasets, the Evidence Explorer Space and the collection are live: the collection groups them.

Five small datasets are built in CI from evidence that is committed in this repository. Each one is labelled for what it is, ships a MANIFEST.json with a sha256 for every file and the commit it was built from, and a verify.py that recomputes the hashes. A privacy and secret scan runs on every output.

DatasetWhat it holdsLabel
gavel-gatesIndex of G0 to G5 with status, date, run links and evidence file hashesreal sandbox, synthetic audio, G3 in progress
gavel-latencySettlement and per-call latency of the PayPal sandboxreal sandbox, small n
gavel-sim-30d 30-day , per and per holdsimulated, fake clock
gavel-stt-bids24 synthetic bid clips, speech-to-text outputs and scoressynthetic audio
gavel-audit-demoEvent, and outcome records of auctionssynthetic,

A read-only static Space, gavel-evidence-explorer, charts them (gate status, sandbox latency, the simulated 30-day run, speech-to-text on synthetic audio), each section labelled. The collection is titled "GAVEL Evidence: auction holds, hammer and receipts".

Nothing here is production data, no real person or real money is involved, and the sandbox numbers say nothing about production PayPal. The full description of each dataset, and how they are built and published, is in docs/HF_COLLECTION.md. See also Real, simulated, recorded.

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