Last updated: Justin, 2026-02-24

Relevant code and data for 780nm clocksync paper is stored in:

/mnt/bitstream/projects/clocksync/publication_780clksync/
├─ fig1b/ (g2 plot)
├─ fig1c/
│  ├─ raw data (actual 25h ~300GB, old 50h ~700GB)
│  ├─ processing code (distrandom + qcrypto)
│  └─ extracted freq and time values (data_freqcd, data_floattime)
├─ fig2/
│  ├─ raw oscilloscope traces
│  └─ plotting code
├─ fig3_fig5/
│  ├─ simulation code
│  ├─ CDF simulation results
│  └─ plotting code
├─ fig4a/ (tracking plot under fixed du=10ppb)
│  └─ raw data (~2GB)
└─ fig4b/ (tracking plot accuracy)

Some of the file references are symbolic links to files within
'/mnt/bitstream/projects/clocksync/demo_pseudothermal_780nm' to avoid
deduplicating large timestamp files (~1TB).

Libraries:
- kochen (https://github.com/pyuxiang/kochen): Set of convenience Python scripts
- physicsutils (https://git.qolah.org/justin/physicsutils): Clock synchronization code
  - /src/physicsutils/apps/clocksync/costream.py
  - /src/physicsutils/apps/clocksync/libcostream.pyx
- fpfind (https://github.com/s-fifteen-instruments/fpfind): Timestamp processing code
  - /src/fpfind/lib/parse_timestamps.py
  - /src/fpfind/freqcd.c
- distrandom (https://github.com/s-fifteen-instruments/distrandom): Wrapper code to run qcrypto
  - Private repository under S-Fifteen GitHub organization, working state archived
  - Deprecated in favor of 'physicsutils' costream.py (patched with custom export behaviour)