Protocol-level metadata for one edge — the commit that produced a node from
its parent. The decrypted commit bytes themselves are retained separately
(see GroupHistoryTree.commitBytesOf) so the tree is self-contained and
replayable without the transport's event store.
Protocol-level metadata for one edge — the commit that produced a node from its parent. The decrypted commit bytes themselves are retained separately (see GroupHistoryTree.commitBytesOf) so the tree is self-contained and replayable without the transport's event store.