nx_trace_log.nx

nx_trace_log.nx -- bit-traceability persistence layer. Per [[feedback-end-to-end-bit-traceability-architecture]]: "Local trace per call in ~/.nishi/trace/<call_id>.jsonl default- off cross-device." nx_provenance_chain is the in-memory ring; nx_trace_log is the persistent log shape (in-memory in V1; on-disk JSONL in V2 once nx_jsonl_writer is wired into the substrate). THE COMPLEMENT TO nx_provenance_chain: chain is the hot path; log is the cold path. Caller appends every provenance link to the chain AND emits a log entry. Chain wraps at capacity (old links roll out); log grows unbounded until caller archives. Composes: nx_provenance_chain -- the source of truth for which transforms ran; trace_log is its persistent shadow nx_methyl -- each entry methyl-marked nx_trace_merkle -- the merkle-root summary of a log range nx_trace_consent (queued) -- per-call cross-device sharing V1 ships: - struct NxTraceEntry capturing call_id + entry_seq + transform_id + params_hash + output_hash + ts + originator - struct NxTraceLog as append-only growable buffer with persist_count - append + count + find_by_call_id Gap list (V1 honest perf verdict): - in-memory only; on-disk JSONL writer queued - no compression of redundant transforms - per-call grouping via call_id is caller-supplied (V2 auto-assigns)