nx_chromatin.nx

nx_chromatin.nx -- backup cell state (germline replication). Biology: chromatin is the packed DNA + histones inside a cell's nucleus -- the GERMLINE that survives cell death (when one cell dies via apoptosis, its chromatin can be inherited by daughter cells or read from spore form). In Nishi terms: chromatin holds the content-addressed snapshot of a cell's running state so a REPLICA cell can restore from it on failover (nx_promote). Per [[feedback-cell-immune-system-ransomware-judo-ddos-by-bit]]: "ephemeral content-addressed cells deny persistence by design. chromatin-replicated backups already running as peer cells (not "restore archives"), failover = manifest pointer flip = sub-second." Per [[feedback-naming-discipline-no-industry-competitor-overlap]]: chromatin replaces an earlier conflicting name (Project Nucleus + Nucleus RTOS); chromatin is unowned in software-infra space. Composes: nx_methyl -- methyl-marks the chromatin so a replica can distinguish authentic-self chromatin from a forged backup (decoy-invalid mark in fake backups, valid mark in real ones) nx_promote -- consumes chromatin to instantiate a replica as the new primary (failover) nx_abortive -- compromised cell's chromatin survives the abortive transition; daughter cells get a clean copy of pre-compromise state nx_pollinate -- chromatin can federate across hosts as XENO_OBSERVATION + RECLAIM_REPORT payload V1 ships: - struct NxChromatin with originator, content_hash, ts, snapshot bytes - snapshot operation (capture cell state into chromatin) - restore operation (apply chromatin to destination cell buffer) - is_valid predicate (signature + freshness check) Gap list (V1 honest perf verdict): - snapshot is byte-copy (V2 supports COW + delta encoding) - no automatic periodic capture (caller drives)