arborist/docs/dav1d-reviews
russell@unturf.com ca7577f680
#000071: dav1d review 2026-06-01 — REJECT-AS-WRITTEN, GO-with-rewrite
The 1026-line de-novo response arrives after #000070 was corrected
from fixed Anchor6 to generic AnchorN/WorldDimensionGrammar. The
bridge concept is valid and necessary; the Joseph6-coupled framing
is now wrong. Same pattern as #000070's review: §§1-8 preserved as
the design log of what was reviewed; new §0 carries the corrected
spec.

Verdict matrix (12 rows in §0 decision table):
   GO: bridge concept (Agreement / Translation / Embassy), Phase 1
        doc-only, bridge_seed@v1 deferred to Phase 2, no audit_mode,
        no SQL, bridge atlas Phase 3.
   REWRITE: #000070-as-Joseph6-sibling → AnchorN sibling;
            chain_id=governance_policy_hash → composite ChainRoot
            with optional v7-W fields (null sentinels for language-
            only QA chains); single event_type='bridge' → typed
            schemas per kind; privacy as Phase 3+ footnote → Phase 1
            vocabulary (4 classes); #000059 "already-shipped"
            overclaim → proposed/structurally-aligned unless repo
            confirms.
   REJECT: doc-only Phase 1 flipping #000013 to "kernel_in_progress"
           — correct status is "bridge_grammar_specified"; kernel_
           in_progress is for actual kernel landings.

Five bridge outcomes (was three):
  Agreement   — grammars match on invariant set
  Translation — hash-pinned adapter proves the mapping
  Embassy     — foreign object hosted with limited rights
  Quarantine  — NEW: bridge attempted, invariant validation FAILED,
                record the rejection so future attempts see what broke
  No-bridge   — NEW: grammars genuinely incompatible, explicit
                declaration that no bridge will exist

Composite ChainRoot identity:
  chain_id = SHA256(canonical({
      chain_id_version, history_root, governance_policy_hash,
      canonicalization_version, schema_version, chunking_version,
      world_manifest_hash, world_dimension_grammar_hash,
      axiom_pack_hash, optional_verifier_policy_hash
  }))
Language-only chains: three v7-W fields are null sentinels →
chain_id collapses to existing identity. v7-W chains: all mandatory.

Phase 1 deliverable (corrected):
  1. Substrate-paper extension §"World-bridge grammar" (5 outcomes
     with typed witness shapes + composite ChainRoot + privacy
     vocabulary + sovereignty rule + #000070 cross-ref + retro-
     validation appendix with corrected shipped/proposed framing)
  2. Optional namespace stub arborist/world/bridge/__init__.py
     (STATUS = "namespace_reserved")
  3. NO kernels / NO bridge_seed canonicalization / NO SQL / NO
     cache-key dimension / NO new audit_mode / NO verifier change /
     NO KATs
  4. #000013 status bumps to "bridge_grammar_specified", NOT
     "kernel_in_progress"

Sovereignty rule survives unchanged (chain law local, bridge law
treaty-only, no bridge overwrites native chain law — guard against
forced-unity failure mode). Hash-pinned translators survive
unchanged. Topic-named under arborist/world/bridge/ unchanged.

Full review archived at:
  docs/dav1d-reviews/000071-world-bridge-grammar--2026-06-01.txt
2026-06-01 07:13:23 -04:00
..
000070-spatial-anchor-pi-w-object--2026-06-01.txt #000070: dav1d review 2026-06-01 — GO with rewrite (AnchorN, not Anchor6) 2026-06-01 07:10:01 -04:00
000071-world-bridge-grammar--2026-06-01.txt #000071: dav1d review 2026-06-01 — REJECT-AS-WRITTEN, GO-with-rewrite 2026-06-01 07:13:23 -04:00