What is here
- The prediction record. Every 10-minute prediction, exactly as it was locked, before the sky was checked.
Each entry carries the fingerprint of the one before it, so changing any past prediction breaks the chain.
- Stamp files. Small text files giving the record's latest fingerprint. One is made each time new
predictions are locked, before the satellite is looked at (names ending -lock), and one
every hour that also fingerprints that hour's observations file. Each has a Bitcoin proof file
(.ots) next to it. 15 stamp files so far, 15 with proofs.
- Hourly observations files. Every satellite result, trace-back to a plane, score and chemistry value
written since the previous file, whatever hour it describes. Read in order, they hold every result as it stood
at the end of each hour (a result changed twice within one hour appears only in its later form).
- The satellite detector's pass bar, stamped once so it cannot be quietly changed before a replacement detector is tested (its proof).
- Daily reports, with their own daily stamps.
- A list of every file with its fingerprint.
How to check, in two steps
- See when Bitcoin recorded a stamp. Download any .ledger-head.txt file and the
.ots file with the same name, then drop both onto
opentimestamps.org. It shows the Bitcoin block, and its date, that
recorded the file. A stamp made in the last few hours may still say it is pending; Bitcoin takes a few hours to
confirm it.
- See that the published record matches the stamps. Download the checker
and run it with Python 3 (nothing to install):
python3 verify_records.py https://sky.faithnfreedom.org/records/
It re-checks the whole prediction chain, confirms every stamp names a fingerprint that is really in it, and
confirms every observations file is byte-for-byte what was stamped.
What this proves: each file existed, exactly as published, no later than the Bitcoin block that
records it (usually within a few hours of being made), and has not changed since. Bitcoin cannot time things to the
minute, so it does not by itself prove that a prediction came before the satellite look 20 to 80 minutes later. That
order rests on the lock time written inside each prediction and on the program, which stamps the record the moment
predictions are locked and only then reads the satellite.
Latest files
Stamp files
Observations files
Prediction record, by day (UTC)
Daily reports
Older files are all listed in the file list.