a776744889
- Rust workspace with stemedb-core crate - Full .claude/ configuration (agents, skills, commands, guides) - ai-lookup/ for token-efficient fact storage - Quality gates: clippy, fmt, jscpd duplication detection - Pre-commit hook with 5-phase quality checks - CLAUDE.md router and CODING_GUIDELINES.md standards Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
42 lines
1.1 KiB
Markdown
42 lines
1.1 KiB
Markdown
# Assertion
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**Last Updated:** 2025-01-31
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**Confidence:** High
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## Summary
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The Assertion is the atomic unit of Episteme. It represents a signed claim about reality, not a mutable fact.
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**Key Facts:**
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- Immutable once written (append-only)
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- Content-addressed by BLAKE3 hash
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- Contains: subject, predicate, object, source, agent, timestamp
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- Optionally includes vector embedding for semantic search
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**File Pointer:** `crates/stemedb-core/src/assertion.rs` (planned)
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## Structure
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```rust
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pub struct Assertion {
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pub subject: EntityId, // "Tesla_Inc"
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pub predicate: RelationId, // "has_revenue"
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pub object: ObjectValue, // Float(96.7B), String("Musk"), Ref(EntityId)
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pub source: SourceHash, // Evidence pointer (PDF/URL hash)
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pub agent: AgentId, // Ed25519 public key
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pub timestamp: u64, // Wall clock time
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pub vector: Option<Vec<f32>>, // Semantic embedding
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}
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```
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## Identity
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Assertion ID = BLAKE3(subject || predicate || object || agent || timestamp)
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Same content from same agent at same time = same hash.
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## Related Topics
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- [Storage Layout](./storage.md)
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- [Lens Resolution](./lens.md)
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