fill in verifiable build hash

Author: AshwinSekar

proposals/0204-slashable-event-verification.md

@@ -51,7 +51,7 @@ epoch:
 
 2. Verify that the program account
   `S1asHs4je6wPb2kWiHqNNdpNRiDaBEDQyfyCThhsrgv` has a verified build hash of
-  `<FILL IN AFTER IMPLEMENTATION>` [\[1\]](#notes)
+  `192ed727334abe822d5accba8b886e25f88b03c76973c2e7290cfb55b9e1115f` [\[1\]](#notes)
 
 3. Copy the contents of `8sT74BE7sanh4iT84EyVUL8b77cVruLHXGjvTyJ4GwCe` into
   `S1ashing11111111111111111111111111111111111`