What campus pages and sharing hold

In plain words Technical detail

Where each kind is stored, and the details it holds
Stored in	Details	Why	Kept for	Schedule row
growth_founding	school_id, number, member_id, act, act_at, granted, withdrawn_at, created_at	Records the order in which early members at a college were numbered, so a number is never given twice.	While your account lives; then the number alone, without your name.	Row E40
growth_placements	code, format, spot, spot_no, list, school_id, created_by, state, printed_day, expires_at, joined_n, created_at	Tells a sheet's code apart from another, so one that is put up in the wrong place can be ended.	400 days after the sheet ends; your name comes off if you delete your account.	Row E12
growth_invites	code, member_id, table_key, show_name, state, created_at	Points an invitation at one table, and lets you end it. Nothing is kept about the people who open it.	Until you end it or the table has met, and no more than 90 days after.	Row E41
growth_waitlist	email_mac, email, domain, school_id, kind, state, confirmed_at, told_at	Writes to an address once, when its college opens, and then deletes the address.	Until that one letter, and never more than 12 months. The keyed hash stays only for someone who asked not to be written to.	Row K7
growth_early	list, email_mac, email_sealed, domain, created_at, told_at, left_at	Writes to an address once, when Tillyard opens to students or when it can accept donations, and then deletes the address. The address is kept encrypted.	Until that one letter, and never more than 12 months. The keyed hash stays only for someone who asked to be taken off.	Row K11
growth_campuses	school_id, slug, page, members_n, counted_at, opened_at, f_cap, f_days, f_opens_at, f_closes_at, f_issued	Counts members at each college and keeps the founding window's rules as they were when it opened. Totals only.	While the college has members.	Row E42