Support for gradual weight adjustments

[Jkd-eth]

User Story:

As the Passport team
We want to enable gradual weight adjustments for Passport users
So that we can minimize the impact of sudden score changes

Acceptance Criteria

GIVEN a user has (a) stamp(s) in Passport
WHEN they come to Passport after an update
THEN they still have basically the same points as prior to the update

How do we implement a system that enables us to gradually 'retire' stamps or credentials so that we don't 'shock' users with massive score changes or require a scoring of all users?

Likely / potential scenarios:

• Large point drop in a single credential - keep the points from the previous credential until it expires (Coinbase / Binance in last change)
• Change in qualification - allow the user to keep the qualification of the current stamp until expiration, but once expired, the new criteria determines qualification (Github / model based stamps)
• Retire a stamp / credential - user is allowed to keep it + points until the stamp expires and is then removed

Product & Design Links:

Tech Details:

Open Questions:

• How do we handle onchain?
• [ ]

Notes/Assumptions: