Phala Network
Fair trust profile for this ai agent. TrustGrade score 67/100 (Grade B-).
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 |
|---|---|---|---|---|
| Model Transparency | 70.0% | ±7 | +2.80 | |
| Decentralization Level | 65.0% | ±8 | +2.40 | |
| Compute Verification | 60.0% | ±9 | +1.80 | |
| Team Transparency | 75.0% | ±4 | +2.00 | |
| Token Utility | 70.0% | ±4 | +1.60 | |
| TEE Security | 82.0% | ±5 | +3.20 |
Why this grade?
Fair trust profile for this ai agent. TrustGrade score 67/100 (Grade B-).
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 ai agents.
Use this score
Query the TrustGrade API or embed a badge on your site.
API Query
curl -s https://api.trustgrade.ai/v1/score/ai_agent/Phala%20Network \
-H "Authorization: Bearer $TRUSTGRADE_KEY" | jq .{
"entity": "Phala Network",
"type": "ai_agent",
"score": 67,
"grade": "B-",
"confidence": 0.8007,
"summary": "Fair trust profile for this ai agent. TrustGrade score 67/100 (Grade B-).",
"breakdown": {
"wilson": 0.7633,
"bayesian": 0.75,
"incidentPenalty": 0.03,
"volumeBonus": 3.5
},
"computedAt": "2026-07-21T00:00:00.000Z"
}Embed Badge
<script src="https://trustgrade.ai/widget.js"></script>
<div data-trustgrade="ai_agent:Phala%20Network" data-size="medium"></div>