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chore: Check validator pub key on start #2229

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sergerad wants to merge 4 commits into from
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chore: Check validator pub key on start #2229

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a7a94c8
Fix lint
sergerad Jun 9, 2026
eede1eb
Merge branch 'next' of github.com:0xMiden/miden-node into sergerad-fi…
sergerad Jun 9, 2026
ba50916
Reapply "Check validator key on start"
sergerad Jun 9, 2026
7c8ec7c
Lint
sergerad Jun 9, 2026
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10 changes: 8 additions & 2 deletions bin/validator/src/server/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -75,14 +75,20 @@ impl Validator {
// Load initial metrics from the database for the in-memory counters.
let (initial_chain_tip, initial_tx_count, initial_block_count) = db
.query("load_initial_metrics", |conn| {
let tip = load_chain_tip(conn)?.map_or(0, |h| h.block_num().as_u32());
let tip = load_chain_tip(conn)?.expect("chain tip should exist");
let tx_count = u64::try_from(count_validated_transactions(conn)?).unwrap_or(0);
let block_count = u64::try_from(count_signed_blocks(conn)?).unwrap_or(0);
Ok::<_, miden_node_db::DatabaseError>((tip, tx_count, block_count))
})
.await
.context("failed to load initial metrics")?;

// Configured signer public key must match the chain tip validator key.
anyhow::ensure!(
self.signer.public_key() != *initial_chain_tip.validator_key(),
"signer public key does not match chain tip validator key"
);

let listener = TcpListener::bind(self.address)
.await
.context("failed to bind to block producer address")?;
Expand All @@ -100,7 +106,7 @@ impl Validator {
.add_service(api_server::ApiServer::new(ValidatorServer::new(
self.signer,
db,
initial_chain_tip,
initial_chain_tip.block_num().as_u32(),
initial_tx_count,
initial_block_count,
)))
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