Development log
Development log
Every entry in full, monthly minimum, with the artefact version it describes.
Nine entries. Corrections are a first-class type and superseded figures are struck rather than deleted. If the monthly cadence is missed, this page says so rather than going quiet.
The formal specification is finished at v0.4
It goes out as it stands, with no form in front of it and no email address collected.
Spec v0.4
Trigram hit rate raised to 0.461 on the held-out set
Up from 0.449. The figure moved, and so did our description of what the figure means.
Build 7f2a9c31
Majority voting withdrawn from the annotation regime
It only works if errors are independent, and on ambiguous items they are not.
Regime v2
The AI Act dates after the Digital Omnibus
The window moved later than it first looked, and incumbents will use it.
Reviewed 11 Jul 2026
Derivation log schema settled, versioned and open
The record format fixed before anyone asked for it, under a permissive licence, with a changelog.
Schema v1.0.0
Silent lookup errors, counted rather than estimated
Roughly 6,100 in a billion queries at the current index width, and the arithmetic is on the page.
Spec v0.4 §7
The verification programme, and what it pays
Four hundred hours at fifteen pounds, paid per verified hour rather than per item.
Programme v1
Octavo fits in 16 MB, with a weaker guarantee
One false accept in 4,096, against one in 16.7 million on Quarto.
Build 4c81e0a2
The energy comparison has been withdrawn
It rested on a batch size nobody has published, so it was not a figure we could defend.
Claims v1.1
Mean fanout measured at 2.60
One to three reads per lookup, which is what makes a memory-mapped artefact viable.
Build 9d1c40b7
Speech act layers one and two land in the core
They come with the engine as a mathematical consequence, not as a product decision.
Spec v0.3
IEC 62304 gap analysis, first pass
Deterministic software has a certification path. Most of the gap is documentation we have not written.
Reviewed 8 May 2026
The SRAM figure was quoted without its qualifier
"Runs in 50 KB" does not survive one technical reader. The full form is now the only form.
Claims v1.0
The repair path was built before the response path
A system that is honest before it is capable can be made capable. The other order rarely recovers.
Build 2b7fd014
Contract terms published before hiring anyone
IP assignment and confidentiality shown before the first batch, not after it.
Programme v0.9
Thirty-six thousand qualia relations, and what they miss
The count is the easy part. Coverage is the number that decides whether the engine can answer you.
KB v0.6
First end-to-end turn on Quarto hardware
One question, one answer, one derivation record, on a board with an SD card and no operating system.
Build 5e9a1c33
The repair surface replaces the answer
Not a banner above it, not an amber underline. When something is flagged there is no answer to decorate.
Spec v0.2