Cover Protocol
Fair trust profile for this insurance_protocol. TrustGrade score 55/100 (Grade C-).
Score Breakdown
How the TrustGrade algorithm computed this score.
Wilson Score Lower Bound
95% confidence interval lower bound on positive outcome rate. Penalizes small samples automatically.
Bayesian Posterior
Beta(α,β) posterior mean with sceptical prior. Adjusts observed rate toward conservative estimate.
Incident Penalty
Compound penalty: 1−(1−s)². 10% incidents → 19% penalty. 30% → 51%.
Volume Bonus
Log-credibility bonus: log₁₀(n)×k. More data = more confidence, diminishing returns.
Signal Contributions
Each signal's contribution to the final score. Positive = trust-building. Negative = risk-indicating.
| Signal | Value | Weight | Contribution | Visualization |
|---|---|---|---|---|
| TVL Stability (30-day) | 50.0% | ±7 | +3.50 | |
| Audit Coverage | 59.0% | ±8 | +4.72 | |
| Exploit History | 70.0% | ±9 | +6.30 | |
| Capital Adequacy | 55.0% | ±7 | +3.85 | |
| Claims Processing | 55.0% | ±5 | +2.75 | |
| Team Transparency | 64.0% | ±4 | +2.56 |
Why this grade?
Fair trust profile for this insurance_protocol. TrustGrade score 55/100 (Grade C-).
The TrustGrade algorithm combines the Wilson score lower bound (which requires substantial evidence to score high), a Bayesian posterior (which shrinks toward a conservative estimate when sample sizes are small), a compound incident penalty (which grows faster than linear), a log-credibility volume bonus, and 6 weighted optional signals specific to defi protocols.
Use this score
Query the TrustGrade API or embed a badge on your site.
API Query
curl -s https://api.trustgrade.ai/v1/score/defi_protocol/Cover%20Protocol \
-H "Authorization: Bearer $TRUSTGRADE_KEY" | jq .{
"entity": "Cover Protocol",
"type": "defi_protocol",
"score": 55,
"grade": "C-",
"confidence": 0.85,
"summary": "Fair trust profile for this insurance_protocol. TrustGrade score 55/100 (Grade C-).",
"breakdown": {
"wilson": 0.5625,
"bayesian": 0.6852,
"incidentPenalty": 0.1,
"volumeBonus": 2.5
},
"computedAt": "2026-07-21T00:00:00.000Z"
}Embed Badge
<script src="https://trustgrade.ai/widget.js"></script>
<div data-trustgrade="defi_protocol:Cover%20Protocol" data-size="medium"></div>