diff --git a/ROADMAP-identity-wallet.md b/ROADMAP-identity-wallet.md
index 3e941f5..48fcad5 100644
--- a/ROADMAP-identity-wallet.md
+++ b/ROADMAP-identity-wallet.md
@@ -33,6 +33,12 @@ passwords/0 → wallet) and works for random-seed vaults too. Changing the
 info string or the parent root would orphan every wallet's funds; recovery
 without Theseus is via the account xprv shown in the wallet's Settings.
 
+The bundled Siacoin wallet follows the same rule with `siawallet/mainnet/0`
+as the 32-byte seed for walletd's `KeyFromSeed(seed, index)`; addresses are
+standard unlock hashes. It talks to a user-configured walletd node (no
+default endpoint ships in the add-on — hosted providers put an access key
+in the URL path).
+
 ## Strand A — Password manager
 
 ### A.1 — SHIPPED (0.0.3, 9c09955e)