Trace · URN 100995

How we read Alderbrook Primary School

last read 14 Aug 2026, 15:59 UTC · took 6.8s · 38 dates across 2 school years

Nobody types these dates in. A program finds whatever the school publishes its term dates on and reads it. This page is the working out: the files we downloaded, the sentences we found in them, and which sentence produced which date. If a date below is wrong, the sentence that caused it is here too.

Find the page

saved for next time

We start at the school's website and follow it to whatever it publishes term dates on, in this case a file on alderbrookprimaryschool.co.uk. That address is saved, so every later check goes straight there.

Download it

sha-256

1 file came back. We fingerprint the contents (ad6249c01b…298f7a00fc). If the fingerprint matches last time's, the school hasn't changed anything and we stop here.

Read it

6.8s

A language model pulled out 30 sentences that state a date. It quotes; it never paraphrases, so we can always show you what it saw.

Work out the dates

plain code

Ordinary code takes it from here, pairing those sentences into terms and filling in the holidays between them. It also checks the year adds up: if the dates leave too few school days, we throw the whole read away rather than publish it.

Save it

one copy

The dates get written down once. The school's page, your calendar feed and this trace all read that same copy, so they can't disagree with each other.

Where it came from

what we downloaded, and what we actually used

alderbrookprimaryschool.co.uk/Term-Dates/
We read 38 dates out of this one.
used · 38 dates

Every date, and the sentence behind it

tap, hover or tab anything to see what it’s joined to

2025/2614 sentences → 19 dates

What the school wrote

What went in your calendar

2026/2716 sentences → 19 dates

What the school wrote

What went in your calendar

Terms come straight from two sentences: one saying the school opens, one saying it closes. The holidays between them are marked derived because no sentence states them. We take the day after one term ends to the day before the next begins. Anything marked from Wandsworth council is a year the school has not published yet, filled in from the council until it does.

What we saved

the single copy the school page and your calendar both read

This run

fingerprint: a1c00b7687…e202fb2a19
saved at: 25 Aug 2026, 20:43 UTC
run signature: 21d6afe39b…b91afaf833
dates published: 30
last confirmed: 14 August 2026

Why your calendar doesn't fill up with duplicates

Each event gets an ID built from who said it, what kind of day it is, and when it starts. Read the school again tomorrow and the same day comes out with the same ID, so your calendar updates the entry it already has rather than adding a second one.

# same inputs, same ID, every time
sha256(owner | kind | start)[:24]
  → a4384bdd…f1763a2c@termsync.co.uk