# Step-3.7-Flash — Binding Vote
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### Priority 1: Fuzzy structural query engine (CompositeMemory + RoleAlgebra + AtomMemory cleanup) — the only database capability no existing system (Neo4j, Pinecone, SQL) can express, enabling invertible role-filler retrieval from partial/noisy structural patterns.
Algorithm: Bind known query roles via odd cyclic-shift permutations coprime with D=16384, overlap-scan the CompositeMemory inverted index for matching canonical triples, individually XOR-unbind known roles from each matched composite and inverse-shift to isolate the target filler, clean via the k-sparse Modern Hopfield AtomMemory, and aggregate per-entity with MiniMax's calibrated `1-(1-mean_conf)^support_count` confidence formula.
Test: Build a graph with controlled fan-outs {1,5,10,20,30,40} plus 50K noise triples, query with 25% bit-flip-corrupted subject vectors using MiniMax's exact reproducible `corrupt` function, assert recall ≥0.95 and precision ≥0.95 on the algebraic path, and assert aggregated noise-hit confidence never exceeds 0.5.

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### Priority 2: mmap-backed Compressed-Sparse-Row immutable segments with TLB-aware prefetching for both inverted indexes.
Algorithm: Write inverted index data (offsets, posting lists, arena vectors) to disk in cache-line-aligned CSR layout during background compaction, load via raw libc mmap, and execute overlap scans by sorting query dims by posting-list length ascending and issuing `_mm_prefetch(_MM_HINT_T0)` for all list heads to overlap page-fault latency with computation.
Test: Insert 10M triples, compact to disk, force `madvise(MADV_DONTNEED)` to evict the OS page cache, run 1000 cold fuzzy structural queries, assert p50 latency <0.5ms and p99 latency <2ms.

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### Priority 3: Sharded inverted-index backbone with strict ascending lock ordering for concurrent read/write access.
Algorithm: Partition the 16384-dimension space into 64 256-dimension shards each guarded by a `parking_lot` RwLock, with insert paths grouping touched shards and acquiring write locks in strictly ascending order to eliminate deadlock, and read paths taking shared locks for concurrent lock-free overlap scans.
Test: Spawn 8 writer threads performing 10K random inserts each and 4 reader threads performing 10K random cleanup queries concurrently, assert zero deadlocks, zero posting list corruption, and p99 read latency remains <5ms under maximum write load.
