This is live entropy from the Zenerglass. The line represents the least significant byte of raw data samples of unamplified avalanche noise within a Zener diode. There are 200 data points on this graph, containing a true entropy of 700 bits. That’s 4% of the total entropy available from a single entropy request from the Zenerglass. This is based on a conservative entropy assessment of 3.5 bits /byte.
Note: We endeavour to maintain this entropy source on-line at all times, but that’s not always possible. Sometimes maintenance is required, and it goes off-line when the instrument needs polishing. Most Bank holidays are out too. There will be a big red error box and an “An Error Has Occured…” message during the off times. Apologies.