diff --git a/config/papyrus/default_config.json b/config/papyrus/default_config.json
index ab8323e8ad7..0673d4e6b3a 100644
--- a/config/papyrus/default_config.json
+++ b/config/papyrus/default_config.json
@@ -197,7 +197,7 @@
   "consensus.validator_id": {
     "description": "The validator id of the node.",
     "privacy": "Public",
-    "value": "0x0"
+    "value": "0x7c7"
   },
   "monitoring_gateway.collect_metrics": {
     "description": "If true, collect and return metrics in the monitoring gateway.",
diff --git a/crates/papyrus_node/src/config/snapshots/papyrus_node__config__config_test__dump_default_config.snap b/crates/papyrus_node/src/config/snapshots/papyrus_node__config__config_test__dump_default_config.snap
index bc2248761a1..1499f60e010 100644
--- a/crates/papyrus_node/src/config/snapshots/papyrus_node__config__config_test__dump_default_config.snap
+++ b/crates/papyrus_node/src/config/snapshots/papyrus_node__config__config_test__dump_default_config.snap
@@ -238,7 +238,7 @@ expression: dumped_default_config
   },
   "consensus.validator_id": {
     "description": "The validator id of the node.",
-    "value": "0x0",
+    "value": "0x7c7",
     "privacy": "Public"
   },
   "monitoring_gateway.collect_metrics": {
diff --git a/crates/sequencing/papyrus_consensus/src/config.rs b/crates/sequencing/papyrus_consensus/src/config.rs
index 97ed7f4656e..0ebeb4ae880 100644
--- a/crates/sequencing/papyrus_consensus/src/config.rs
+++ b/crates/sequencing/papyrus_consensus/src/config.rs
@@ -90,7 +90,7 @@ impl Default for ConsensusConfig {
             ..Default::default()
         };
         Self {
-            validator_id: ValidatorId::default(),
+            validator_id: ValidatorId::from(1991_u128),
             network_topic: "consensus".to_string(),
             start_height: BlockNumber::default(),
             num_validators: 1,
diff --git a/crates/sequencing/papyrus_consensus/src/single_height_consensus.rs b/crates/sequencing/papyrus_consensus/src/single_height_consensus.rs
index e4c55f3b730..3495300cdaf 100644
--- a/crates/sequencing/papyrus_consensus/src/single_height_consensus.rs
+++ b/crates/sequencing/papyrus_consensus/src/single_height_consensus.rs
@@ -184,13 +184,21 @@ impl SingleHeightConsensus {
     ) -> Result<ShcReturn, ConsensusError> {
         info!("Starting consensus with validators {:?}", self.validators);
         context
-            .set_height_and_round(self.height, self.state_machine.round(), ValidatorId::default())
+            .set_height_and_round(
+                self.height,
+                self.state_machine.round(),
+                ValidatorId::from(1991_u32),
+            )
             .await;
         let leader_fn = |round: Round| -> ValidatorId { context.proposer(self.height, round) };
         let events = self.state_machine.start(&leader_fn);
         let ret = self.handle_state_machine_events(context, events).await;
         context
-            .set_height_and_round(self.height, self.state_machine.round(), ValidatorId::default())
+            .set_height_and_round(
+                self.height,
+                self.state_machine.round(),
+                ValidatorId::from(1991_u32),
+            )
             .await;
         ret
     }
@@ -239,7 +247,11 @@ impl SingleHeightConsensus {
             )
             .await;
         context
-            .set_height_and_round(self.height, self.state_machine.round(), ValidatorId::default())
+            .set_height_and_round(
+                self.height,
+                self.state_machine.round(),
+                ValidatorId::from(1991_u32),
+            )
             .await;
         Ok(ShcReturn::Tasks(vec![ShcTask::ValidateProposal(init, block_receiver)]))
     }
@@ -272,7 +284,7 @@ impl SingleHeightConsensus {
                     .set_height_and_round(
                         self.height,
                         self.state_machine.round(),
-                        ValidatorId::default(),
+                        ValidatorId::from(1991_u32),
                     )
                     .await;
                 ret
@@ -368,7 +380,11 @@ impl SingleHeightConsensus {
             _ => unimplemented!("Unexpected event: {:?}", event),
         };
         context
-            .set_height_and_round(self.height, self.state_machine.round(), ValidatorId::default())
+            .set_height_and_round(
+                self.height,
+                self.state_machine.round(),
+                ValidatorId::from(1991_u32),
+            )
             .await;
         ret
     }
diff --git a/crates/sequencing/papyrus_consensus_orchestrator/src/sequencer_consensus_context.rs b/crates/sequencing/papyrus_consensus_orchestrator/src/sequencer_consensus_context.rs
index e1db995b78d..b0315be2dfe 100644
--- a/crates/sequencing/papyrus_consensus_orchestrator/src/sequencer_consensus_context.rs
+++ b/crates/sequencing/papyrus_consensus_orchestrator/src/sequencer_consensus_context.rs
@@ -58,7 +58,6 @@ use tokio::task::JoinHandle;
 use tracing::{debug, debug_span, error, info, trace, warn, Instrument};
 
 // TODO(Dan, Matan): Remove these and replace with real gas prices and real sequencer address.
-const TEMPORARY_SEQUENCER_ADDRESS: u16 = 1991;
 const TEMPORARY_GAS_PRICES: GasPrices = GasPrices {
     eth_gas_prices: GasPriceVector {
         l1_gas_price: NonzeroGasPrice::MIN,
@@ -180,7 +179,7 @@ impl ConsensusContext for SequencerConsensusContext {
                     now.timestamp().try_into().expect("Failed to convert timestamp"),
                 ),
                 use_kzg_da: true,
-                sequencer_address: ValidatorId::from(TEMPORARY_SEQUENCER_ADDRESS),
+                sequencer_address: proposal_init.proposer,
             },
         };
         // TODO: Should we be returning an error?
@@ -364,7 +363,7 @@ impl SequencerConsensusContext {
     async fn validate_current_round_proposal(
         &mut self,
         height: BlockNumber,
-        _proposer: ValidatorId,
+        proposer: ValidatorId,
         timeout: Duration,
         content_receiver: mpsc::Receiver<ProposalPart>,
         fin_sender: oneshot::Sender<(ProposalContentId, ProposalFin)>,
@@ -395,7 +394,7 @@ impl SequencerConsensusContext {
                     now.timestamp().try_into().expect("Failed to convert timestamp"),
                 ),
                 use_kzg_da: true,
-                sequencer_address: ValidatorId::from(TEMPORARY_SEQUENCER_ADDRESS),
+                sequencer_address: proposer,
             },
         };
         batcher.validate_block(input).await.expect("Failed to initiate proposal validation");
diff --git a/crates/starknet_integration_tests/tests/end_to_end_flow_test.rs b/crates/starknet_integration_tests/tests/end_to_end_flow_test.rs
index 8e2c998cea5..9cceb6c657e 100644
--- a/crates/starknet_integration_tests/tests/end_to_end_flow_test.rs
+++ b/crates/starknet_integration_tests/tests/end_to_end_flow_test.rs
@@ -2,6 +2,7 @@ use std::collections::HashSet;
 
 use futures::StreamExt;
 use mempool_test_utils::starknet_api_test_utils::MultiAccountTransactionGenerator;
+use papyrus_consensus::types::ValidatorId;
 use papyrus_network::network_manager::BroadcastTopicChannels;
 use papyrus_protobuf::consensus::{
     ProposalFin,
@@ -14,7 +15,6 @@ use papyrus_storage::test_utils::CHAIN_ID_FOR_TESTS;
 use pretty_assertions::assert_eq;
 use rstest::{fixture, rstest};
 use starknet_api::block::{BlockHash, BlockNumber};
-use starknet_api::core::ContractAddress;
 use starknet_api::transaction::TransactionHash;
 use starknet_integration_tests::flow_test_setup::FlowTestSetup;
 use starknet_integration_tests::utils::{
@@ -65,7 +65,7 @@ async fn listen_to_broadcasted_messages(
         height: BlockNumber(1),
         round: 0,
         valid_round: None,
-        proposer: ContractAddress::default(),
+        proposer: ValidatorId::from(1991_u32),
     };
     let expected_proposal_fin = ProposalFin {
         proposal_content_id: BlockHash(Felt::from_hex_unchecked(