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 — 59.9/100 (Grade C) vs 59.4/100 (Grade C), a 0.5-point gap. Full breakdown below.
| Signal | EngramGentleman-Programming/engram | Obsidian Second Braineugeniughelbur/obsidian-second-brain |
|---|---|---|
| HVTrust score | 59.4 | 59.9 |
| Evidence grade | C | C |
| Coverage grade | C | C |
| Overall rank | #215 | #212 |
| Rank in Needs review | #3 | #2 |
| GitHub stars | 5.7k | 3.6k |
| Last updated | 6d ago | today |
| Build provenance | No | No |
| OSSF Scorecard | 4.9 / 10 | 6.0 / 10 |
| License | MIT | MIT |
| Downloads | — | — |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 9.6 | 10.2 |
| Identity & provenance / 18 | 10.8 | 10.8 |
| Transparency / 17 | 12.7 | 13.6 |
| Maintenance / 20 | 18.0 | 20.0 |
| Adoption / 20 | 9.0 | 8.5 |
| Runtime capability surface (full matrix) | ||
| MCP server | Implemented | — |
| External providers | 2 — Google Gemini, Postgres | 3 — Anthropic, Google Gemini, OpenAI |
| Requires API keys | No | Yes |
| Plugin surface | marketplace | 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 v4.2 →