The board assumed to publish nothing is the only one that publishes everything
Balochistan is the only one of the four boards running a working official portal that serves complete textbook PDFs. The confusion is a domain: btbb.gov.pk does not resolve, but btbb.com.pk hosts a 75-title catalogue. Punjab and KP serve no textbook PDFs from any official domain at all.
The obstacle turned out to be a domain, not a policy. btbb.gov.pk does not resolve at all, which is what most directories list and what makes Balochistan look like the least accessible board. Its actual portal, btbb.com.pk, serves a 75-title catalogue of complete textbook PDFs — the only working official source of its kind among the four provincial boards. Punjab and KP serve no textbook PDFs from any official domain, which is why so much of this corpus had to be assembled from elsewhere.
What this rests on
This finding is not a reading of one passage. It is a property of the corpus as a whole, computed from the acquisition record for every Balochistan book. There is no single page to quote, which is why none is quoted here.
Boards and confidence
Balochistan high confidence
Confidence reflects the evidence tier this rests on. High means native or English-medium text verified by exact string match; medium means it depends partly on Urdu-medium material read at theme grade, or on an absence. See the method.
Source
The acquisition record for every book in the corpus
Cite this finding
Two citations are appropriate here, not one. The line above cites this finding. If you are quoting the textbook passage itself, cite the book — its full bibliographic record, edition and approval reference is on its own page, linked from each evidence entry above — and say that you found it here.
Challenge this finding
This is a claim about a printed book, so it is checkable, and it should be checked. If the citation is wrong, the edition is misidentified, the passage is quoted unfairly, or the finding does not survive its own evidence, that is worth reporting and it will be acted on whether or not the correction is convenient for the argument. Corrections are logged publicly in the corrections log; this applies fully to the boards themselves.
Related findings
The sati parallel is not in today's textbooks — but was documented in the 1990s
Othering
Balochistan is on a curriculum generation nobody else uses
Access
Matriculation science is secular in every province
Religion
Women scientists are named four times in the whole corpus — all of them by two boards
Gender