# Title: CrossingKey Witness ## Description: Record the operation. Leave evidence.A Linux-first command witness for consequential local operations.What it does Shows the exact command and working directory before execution. Requires explicit approval before command execution. Captures exit status, elapsed time, stdout/stderr, and filesystem changes. Appends a tamper-evident JSON receipt chain for executed operations. Does not claim packet-level or syscall-level tracing. Platform: Linux systems. Tested on Pop!_OS / Ubuntu-family Linux.Download: standalone CrossingKey Instrument for Linux. No subscription. No telemetry. ## Product type: CrossingKey Instrument ## Vendor: CrossingKey Intelligence ## Tags: command-witness, crossingkey, instrument, linux, local-first, market-validation, provenance, receipts ## Price range: 49.0 - 49.0 USD ## Link: https://shop.crossingkeyintelligence.com/products/crossingkey-witness ## Options - Title: Linux Edition ## Variants - Linux Edition, SKU: CK-WITNESS-100, Available: yes, Inventory: 0, Delivery profile: -