Engram vs Obsidian Second Brain
An independent, evidence-based trust comparison of Engram and Obsidian Second Brain, two Needs review projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.
Obsidian Second Brain leads on trust — 61.3/100 (Grade C) vs 58.5/100 (Grade C), a 2.8-point gap. Full breakdown below.
| Signal | EngramGentleman-Programming/engram | Obsidian Second Braineugeniughelbur/obsidian-second-brain |
|---|---|---|
| HVTrust score | 58.5 | 61.3 |
| Evidence grade | C | C |
| Coverage grade | C | C |
| Overall rank | #338 | #290 |
| Rank in Needs review | #5 | #3 |
| GitHub stars | 5.9k | 3.9k |
| Last updated | 9d ago | 4d ago |
| Build provenance | No | No |
| OSSF Scorecard | 4.9 / 10 | 6.1 / 10 |
| License | MIT | MIT |
| Downloads | — | — |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 9.6 | 10.3 |
| Identity & provenance / 18 | 10.8 | 10.8 |
| Transparency / 17 | 12.7 | 13.7 |
| Maintenance / 20 | 15.6 | 19.7 |
| Adoption / 20 | 9.1 | 8.6 |
| Runtime capability surface (full matrix) | ||
| MCP server | Implemented | Implemented |
| External providers | 1 — Anthropic | 6 — Anthropic, Google Gemini, OpenAI, … |
| Requires API keys | Yes | Yes |
| Plugin surface | plugins | plugins |
| Provenance drift | — | — |
How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption, scaled by an evidence-confidence factor. Grade bands: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Signals refresh daily. Full methodology v4.3 →