[feature] Trust Service

[sosweetham]

Description

Create an algorithmic Trust Service which gives a deterministic numeric score from 0 to 10 for any user.

The Formula

• Unverified user starts with 0 points
• User with age > 180 days gains 1 point
• User with social connections:
  • <10 3rd degree connections - 0
  • 10-25 3rd degree connections - 0.5
  • 25-100 3rd degree connections - 1
  • 100-250 3rd degree connections - 2
  • 250-500 3rd degree connections - 3
  • 500+ 3rd degree connections - 4
• KYC verified user gets 5 points

3rd degree connections

Imagine people as dots connected by friendship lines.

1st-degree connection → someone you know directly (your friend).
2nd-degree connection → your friend’s friend.
3rd-degree connection → your friend’s friend’s friend.

So a 3rd-degree connection is:

A person who is three steps away from you in the social chain.

Simple example
You → Soham → Merul → Patrick

Soham = 1st degree
Merul = 2nd degree
Patrick = 3rd degree

You don’t know Patrick personally, but there’s still a path of people linking you.

Acceptance Criteria

• This service would be REST only
• Always provide higher score to KYC verified users than anyone else
• Use the formula