Instrument · Module 1
Map your own custody chain
Enumerate every transfer in your jurisdiction and mark which ones are documented. Most people discover two or three they had never counted.
Instrument · Module 3
Hashing, and the chain built out of it
Change one character and watch half the digest move. Then edit a record inside a chain and watch the break propagate.
Instrument · Module 4
An append-only log, with its refusals showing
There is a delete button. It refuses, and it says why. Reading the refusal is the exercise.
Instrument · Module 5
The tree, and the receipt a voter is handed
A demonstration log is built in this browser and a receipt is issued for one custody event.
Instrument · the point of the whole thing
Check it yourself
Verification runs entirely in your browser, against a root you can replace. Break the receipt on purpose and watch which property fails.
Instrument · Module 3
What that vendor claim actually means
Paste what a vendor wrote. The decoder flags each claim that stands in for a guarantee, and gives you the question that turns it back into one.
Instrument · Module 7
Turn the question bank into a requirements section
Twelve questions, each with requirement language a procurement officer can paste and the evidence that would settle it.
Instrument · Module 6
When must this record still exist?
22 months under federal law, longer under most state schedules, and a privacy obligation that may land inside the window.
Instrument · §6
What this costs
The published rate card, multiplied. Plus the sanity check that the figure which prompted this rebuild fails by roughly forty times.