Safety Scores Changelog: v3 archive
Historical release evidence. Return to current versions and the complete history index.
What this controls
Safety Scores Changelog: v3 archive version history
Use this changelog to trace how Pharos changed the related scoring, data-source, threshold, or interpretation rules over time. Entries record the contract active at each release; archived rules are retained so historical charts and citations can be read against the rules active at the time.
Primary references
v3.3Reserve-derived collateral qualityFeb 27, 2026
For coins with curated reserve composition data, collateral quality is computed as a weighted average of per-slice risk scores instead of using the enum fallback:
| Reserve risk tier | Score |
|---|---|
| very-low | 100 |
| low | 75 |
| medium | 50 |
| high | 25 |
| very-high | 5 |
Reconstructed from git commit history.
Commits: 25602d1, 1cd1bb9
v3.2Dependency type ceilingsFeb 27, 2026
New dependency types: wrapper, mechanism, collateral (default). After blended score is computed, ceilings apply:
- wrapper → ceiling = upstream − 3
- mechanism → ceiling = upstream
- collateral → no ceiling
Prevents thin wrappers (e.g. a USDC wrapper) from scoring higher than their upstream.
Reconstructed from git commit history.
Commits: fa1d992
v3.0Resilience 4-factor modelFeb 26, 2026
Complete redesign of Resilience from 2 factors (chain distribution + freeze rate) to 4 equal sub-factors (25% each):
| Sub-factor | Tiers & scores |
|---|---|
| Chain Risk | ethereum=100, stage1-l2=66, established-alt-l1=20, unproven=0 |
| Collateral Quality | native=100, eth-lst=66, alt-lst-bridged-or-mixed=20, rwa=50, exotic=0 |
| Custody Model | onchain=100, institutional=50, cex=0 |
| Blacklist Capability | not-blacklistable=100, possible=50, blacklistable=0 |
| Peg | Liquidity | Safety | Resilience | Decentralization | Dep Risk |
|---|---|---|---|---|---|
| 25% | 20% | — | 20% | 10% | 25% |
Reconstructed from git commit history.
Commits: ff9d589, 46fe511, c45f007