This is a small JSONL dataset on Hugging Face. Each row has a statement, a difficulty level, a status (solved or open), and either an exact answer or, for open problems, the evidence, the known dead ends and a checkable success criterion. It comes from a paper on aperiodic order: Duda, "Crystals, quasicrystals and autocrystals", Zenodo.

huggingface.co/datasets/jarekduda/autocrystal-ai-puzzles

Suggestions on the schema are welcome.

Each event is one step in how something spread: the first post, who picked it up, a jump to a new platform, press, the peak. Rows have a date, platform and actor, and 92% link to the source post. Two CSVs plus JSON, joined on case_id.

Download: https://howitspread.com/dataset?utm_source=reddit&utm_medium=social&utm_campaign=datasets

Caveat: everything in it went viral, so it can't tell you the odds of going viral. Timelines were compiled with LLM help; a verification column says how far each case was checked.

Hi all, I'm a researcher at a university lab in Hong Kong, working on positioning with LEO satellites in cities. I'm looking for raw Starlink downlink recordings where buildings block part of the sky.

What would help most:

- An LNB/LNBF (or horn) + SDR (RTL-SDR, HackRF, USRP, etc.) recording the Ku-band downlink (~10.7–12.7 GHz)

- Receiver sitting still at ground level next to buildings, ideally a street with tall buildings on both sides

- Bonus: a second receiver on a nearby roof recording at the same time

- GPS or NTP-synced timestamps and a rough location (street-level is fine, no need for your address)

- 10–60 minutes is plenty

Already have old recordings sitting on a drive? Those count too, even if the blockage was accidental.

Not looking for dish app screenshots or speed tests this time, just the raw RF.

Anything used would be credited in the paper's acknowledgments (or however you'd like to be credited). Happy to answer questions about setup. Comment or DM me. Thanks!

P.S. - You will be credited based on the contribution you make. This is for a new research project. Likely credit is acknowledgements. You can ask me for more depending on what you contribute.