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russell@unturf.com 57cf1b183b
add Q&A layer: v9.8 providence_cache writes with Merkle-bound proofs
aborist/qa/ implements the cache-first answer flow from the providence
whitepaper, scaled up to v9.8's full 8-dim admissibility invariant.

cache_key = SHA-256 of:
  source_root | question_hash | model_profile_hash | conversation_hash
  | governance_policy_hash | schema_version | canonicalization_version
  | chunking_version

Any drift in any dimension yields a distinct cache_key — prior records
cannot serve. Falsification states (failed/stale/quarantined) gate
every cache hit.

- qa/keys.py        — pure hash functions, deterministic & testable
- qa/client.py      — ChatClient Protocol + StubClient + OpenAI-compatible
                      HTTP client (vllm/llama.cpp/uncloseai compatible)
- qa/runner.py      — ask(): lookup -> hit (no LLM call, hit_count++)
                      OR miss (call client, write record, audit event,
                      proof binds answer to source root)
- cli.py            — `aborist ask` and `aborist providence` subcommands
- pyproject.toml    — httpx promoted from extras to core (used by both
                      html and qa); selectolax stays in [html] extras

Smoke (StubClient, no network): cache miss writes record with chunk_0
Merkle proof reconstructing source_root; cache hit returns same record
without calling client; 1085 audit events chained 0 breaks across
ingest/derive/evict/rehydrate/providence_write.
2026-04-27 08:01:23 -04:00
aborist add Q&A layer: v9.8 providence_cache writes with Merkle-bound proofs 2026-04-27 08:01:23 -04:00
tests add Q&A layer: v9.8 providence_cache writes with Merkle-bound proofs 2026-04-27 08:01:23 -04:00
.gitignore phase 0 explore: aborist core + sources + distill + evict 2026-04-27 07:53:18 -04:00
LICENSE phase 0 explore: aborist core + sources + distill + evict 2026-04-27 07:53:18 -04:00
Makefile phase 0 explore: aborist core + sources + distill + evict 2026-04-27 07:53:18 -04:00
pyproject.toml add Q&A layer: v9.8 providence_cache writes with Merkle-bound proofs 2026-04-27 08:01:23 -04:00
README.md phase 0 explore: aborist core + sources + distill + evict 2026-04-27 07:53:18 -04:00

aborist

An arborist for trees and forests of cross-linked information.

Aborist ingests documents into a content-addressed, Merkle-committed store. Every document carries a URI for backtrack and cross-link. Search hooks return hits with declared audit modes (STRICT / HYBRID / VISUAL) so callers never overclaim what a result actually proves.

Design

Aborist implements the runtime spec from Merkle-AGI v9.8 / Merkle Providence Reverse RAG. The 8-dim admissibility key (source_root, question_hash, model_profile_hash, conversation_hash, governance_policy_hash, schema_version, canonicalization_version, chunking_version) plus falsification state ensures cached records are never reused under drift.

Two layered document kinds:

  • surface — diverse ingested content (full chunks, FTS-indexed)
  • core — distilled records (haiku/equation/snippet) Merkle-signed back to source surface roots via derivations

Reversible eviction via chunk tier ∈ {hot, warm, cold}. Cold = leaf hash

  • URI only; rehydratable from URI, identity verifiable via leaf hash.

Quick start

make all            # bootstrap + fetch + ingest + verify + stats
make search Q='…'

License

AGPL-3.0-only.