Matchstick Tribunal — Rail signing key (the Ed25519 chain signature on every ledger event)
key id      : a1-ledger-ed25519
algorithm   : ed25519+sha256-chain-v1
public key  : f23ddf067e00196361cd2fde16df5b12d93c0d03eb97ada7e679ad1e20369d66
source      : the ledger itself — column signing_public_key on events 2811809, 2811831, 2811843 (and 2809821), read 2026-09-11T07:52:49Z; identical on all four
verify      : Ed25519 over the event's canonical form (see the ledger-api /verify endpoint and the seal's event JSON: event_hash, signature); the public key never changes without a ruling