Package reputation is Guildhall's record of completed work.
Every record says that a piece of work was paid for, who did it, who vouched for it, how much it paid and where the work lives (a PR, a realm path, a proposal). Records can only be written by allowlisted writer realms, the Guildhall bounty escrow first among them, and only at the moment escrowed funds are released. Each record also keeps the address whose signed transaction released the funds.
Scores are derived from those records with the rules in gno.land/p/g1lnkytfqcjwllws63gvf0mv9yt04aswy4y9amhm/guildhall/trust: a record is worth more when the people who approved it are themselves trusted. Any realm can consume the result with a single import:
Example
1import "gno.land/r/g1lnkytfqcjwllws63gvf0mv9yt04aswy4y9amhm/guildhall/reputation"
2
3func Vote(cur realm, ...) {
4 reputation.AssertScore(cur.Previous().Address(), 300)
5 ...
6}