Freshness

The Checked stamp#

Every page with shelf numbers has one stamp next to its title, such as "Checked today 06:10". It's the time the page's numbers were last brought up to date. New numbers arrive each morning. When a check is late, the stamp says so for the whole page: numbers don't carry a marker of their own for it.

When something is late#

The app says so, plainly, instead of showing old numbers as new:

• A missed check. The stamp turns amber. If nothing changed, Home also says "A newer check hasn't arrived yet". The numbers are the last ones that finished.
• One chain behind. The stamp names it ("New World as of 11 Oct"), and Home explains under its numbers. That chain's numbers are as of its own last day. If a chain hasn't been read for more than a week, Home says so and gives the day of its last reading.
• A day built late. The stamp says (provisional) and charts draw dotted lines on those days. A change may show a day later than it happened.

Days#

Every date in the app is a Sydney day. "Mon 28 Sep" means the shelf as it stood that Monday.

How far back#

History starts on the first day we read each chain, and your plan sets how far back you can look. See History.