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Claude
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Kind 33330 is §7.6's bag: one addressable event holding everything an author hid in one region, addressed by a hash of a hash so the relay can hand it to anyone and it buys them nothing. CyberspaceBagEvent reads it — the §8.6 tags, the AES-256-GCM payload, and the two plaintext shapes §7.6 allows, with an item that fails its signature check dropped alone because "one corrupt or forged item says nothing about the others". A wrong key returns null rather than throwing: §7.6 is explicit that a failed decryption "MUST NOT be treated as an error in the bag". RegionSweep is §7.7's position-free search. The axes are swept independently up to the combine, which is what makes it affordable: §4.7 builds region_n from three per-axis Cantor roots, so a box costs 2^(Hx-h) + 2^(Hy-h) + 2^(Hz-h) trees rather than a whole three-tree key per candidate. It is a cold Sequence on purpose — a hint is a stranger's choice of difficulty, and the caller's budget is the only defence. amy gains `cyberspace open` and `cyberspace sweep`, and the conformance harness gains the two sections that matter most here: cyberspace-cli seals a plaintext with its own key derivation, its own cipher and its own event builder, and amy has to arrive at the same 32 bytes from the coordinate alone — then find the same bag again from nothing but its hint box. 15/15 sections pass. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01JwXApJjoZYtkD3sPRWbPNa