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russell@unturf.com 856b3116d7
phase 0 explore: aborist core + sources + distill + evict
A content-addressed, Merkle-committed document store implementing the
runtime spec from Merkle Providence Reverse RAG (April 2026 whitepaper)
and Merkle-AGI v9.8 admissibility ledger. Ports proxy.unturf.com Go
merkle conventions to Python: non-commutative HashCombine with 0x03
prefix, explicit IsLeft per sibling, self-duplicate odd elements.

What's in:

- merkle.py — proof generation/verification, JSON serialization
- store.py — v9.8 SQLite schema: 8-dim providence_cache key,
  falsification_state, append-only audit chain, surface/core kind,
  hot/warm/cold tier, derivations, edges
- ingest.py — Source -> normalize -> chunk -> merkle -> upsert,
  idempotent on document_root collision
- search/ — SearchBackend ABC with explicit AuditMode (STRICT/HYBRID/
  VISUAL), FTS5 backend returning VISUAL hits
- sources/ — wikipedia.py (streaming bz2/MySQL extended-INSERT parser
  for 2003-era cur dumps); html_page.py (selectolax + httpx, robots.txt
  honored automatically)
- distill/ — Distiller ABC + first-sentence-v1 stub. Runner generates
  per-contributing-chunk Merkle proofs binding cores back to source
  document_root.
- evict.py — hot->cold demote (NULLs content, drops FTS row, retains
  leaf_hash). rehydrate() refetches via source pipeline; matching root
  restores content, mismatching root marks providence stale and writes
  rehydrate_drift event. Cores never evict.
- cli.py — ingest / search / verify / stats / distill / evict /
  rehydrate
- 31 tests covering merkle round-trip, ingest+audit, chunker version
  binding, html parse, distillation proof verification, evict+
  rehydrate including drift detection.

Smoke: 503 Wikipedia 2003-05-16 + 3 fox-owned HTML pages ingested,
478 cores produced (24 surface->core merkle dedups), 7 chunks evicted
to cold and round-tripped via rehydrate, 987 audit events chained 0
breaks.
2026-04-27 07:53:18 -04:00
aborist phase 0 explore: aborist core + sources + distill + evict 2026-04-27 07:53:18 -04:00
tests phase 0 explore: aborist core + sources + distill + evict 2026-04-27 07:53:18 -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 phase 0 explore: aborist core + sources + distill + evict 2026-04-27 07:53:18 -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.