Adverts carry the transmitting node's whole public key, but only its 12-hex
prefix was ever stored (observation_from_event truncated it with [:12]). That
prefix is the app's identity/join key — heard_nodes groups on it, and the map,
nodes, and watchtower screens correlate it against contacts' 12-hex key_prefix
— so it must stay short. Instead, record the whole key alongside it in a new
observations.public_key column (schema v12) and keep the prefix as node.
The Time Machine picker prefers the captured full key, then the live contact
resolver, then the bare prefix — so a heard node's key now shows as fully as
the hash lane fits, offline included. HeardNode surfaces the key from whichever
row captured it; the simulator's observations carry it too.
No backfill: the full keys past adverts arrived in were never persisted (the
raw payload wasn't stored) and no local source has them, so old rows can't be
completed. The database was wiped to start fresh under the new schema.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Jean-Pierre MartineauandClaude Opus 4.8
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