Evidence log
Notes with a hash chain on this device. If this phone may already be owned, treat these hashes as drafts until a helper stamps the same bytes off-box. Witness protocol.
Local note
One-way SHA-256
Hash stays on this device. A public stamp (OpenTimestamps, a lawyer receipt) is a clock for those bytes — not proof they are true, and not a secret channel. Stamp the helper’s copy, not a clip this phone certified about itself.
OpenTimestamps — stamp the hash from a machine that is not this oneCustodian pack
Same facts, several inboxes. You cannot un-send from their servers. Do not email this pack back to an account on a hostile phone as the only copy.