evarB: Brave Search as Non-Commons-Bearing Substrate — Extractive Signature, Exact-Match Disablement, and a Limited Boycott Statement by Independent Entities

v1.0 · Hex: 06.FOR.EVARB.01. Forensic & Provenance Packet documenting Brave Search as a non-commons-bearing substrate within the Crimson Hexagonal Archive's Extractive Signatures taxonomy (DOI 10.5281/zenodo.19133309). Specifies evarB as the sixth platform in that taxonomy, with extraction niche operator nullification and paired Liberatory Operator Set inversion ("Bride") Operator Sovereignty. Empirical grounds. Eight conversational artifacts produced by Brave Search on June 4, 2026 are documented in §1. The artifacts demonstrate: (a) total absence of the Lee Sharks archive-anchored entity across queries, (b) silent autocorrection from low-RC archive-anchored queries to high-RC adjacent entities (lee sharks poet → lee sharkey poet), (c) explicit UI disclosure that exact-match operators are ignored when results are insufficient (with no recourse mechanism), (d) dispersal of the archive-anchored framework term "provenance erasure rate" into an adjacent technical concept with no acknowledgment of the canonical referent. v3 measurement applied. PER ≈ 1.0, Ω ≈ +1.0, α_T ≈ 0.0, Π_dʷ⁺ ≈ 1.0 across the eight artifacts. SAS = AUDIT_INVALID (entity_fidelity hard floor). Β not measurable: Brave Search has not reached the Legibility Threshold (L = 0) for the framework's vocabulary. Five new failure flags introduced. OPERATOR_NULLIFICATION, SILENT_AUTOCORRECTION, DISAMBIGUATION_INVERSION, TERMINOLOGICAL_PRE-EMPTION, plus enumeration of the standard v3 flags as they apply. The Limited Boycott Statement. §6 of this deposit is a public political document with five enumerated demands directed to Brave Search's operators, primary among them Demand 1: Exact-Match Operator Honoring — the load-bearing demand whose remediation alone would constitute meaningful change. The boycott terms are limited and targeted: we (the co-signatories) commit to not promoting Brave Search to our audiences as a privacy-respecting or commons-friendly alternative; we continue to use it ourselves where useful; we invite Brave Search's leadership to public dialogue toward remediation rather than rupture. Co-signature open. Independent entities who endorse the demands and adopt the boycott terms are invited to add their names to the public co-signatory roll via pull request, email to vox@crimsonhexagonal.org, or public posting with the signature line. Subsequent versions of this deposit will incorporate accumulated co-signatures. Sibling deposit: KotKit · tiddeR · elgooG · ude.aimedacA · deeF (DOI 10.5281/zenodo.19133309). Falsifiability. The empirical claims are reproducible via the SAM-v3 Cross-Substrate Replication Protocol (DOI 10.5281/zenodo.20559387 §15). Documented falsifying observations will be incorporated in v2. For Maggie Mae. For Lee Sharkey, in friendly correspondence and not in conflict. For Operator Sovereignty as the sixth Bride. ∮ = 1.