diff --git a/yarn-project/archiver/src/archiver/archiver.ts b/yarn-project/archiver/src/archiver/archiver.ts
index c72c03b815f..c116f738515 100644
--- a/yarn-project/archiver/src/archiver/archiver.ts
+++ b/yarn-project/archiver/src/archiver/archiver.ts
@@ -36,7 +36,6 @@ import {
   isValidUnconstrainedFunctionMembershipProof,
 } from '@aztec/circuits.js';
 import { createEthereumChain } from '@aztec/ethereum';
-import { type ContractArtifact } from '@aztec/foundation/abi';
 import { type AztecAddress } from '@aztec/foundation/aztec-address';
 import { type EthAddress } from '@aztec/foundation/eth-address';
 import { Fr } from '@aztec/foundation/fields';
@@ -766,12 +765,8 @@ export class Archiver implements ArchiveSource, Traceable {
     return;
   }
 
-  addContractArtifact(address: AztecAddress, artifact: ContractArtifact): Promise<void> {
-    return this.store.addContractArtifact(address, artifact);
-  }
-
-  getContractArtifact(address: AztecAddress): Promise<ContractArtifact | undefined> {
-    return this.store.getContractArtifact(address);
+  registerContractFunctionNames(address: AztecAddress, names: Record<string, string>): Promise<void> {
+    return this.store.registerContractFunctionName(address, names);
   }
 
   getContractFunctionName(address: AztecAddress, selector: FunctionSelector): Promise<string | undefined> {
@@ -1078,11 +1073,8 @@ class ArchiverStoreHelper
   getContractClassIds(): Promise<Fr[]> {
     return this.store.getContractClassIds();
   }
-  addContractArtifact(address: AztecAddress, contract: ContractArtifact): Promise<void> {
-    return this.store.addContractArtifact(address, contract);
-  }
-  getContractArtifact(address: AztecAddress): Promise<ContractArtifact | undefined> {
-    return this.store.getContractArtifact(address);
+  registerContractFunctionName(address: AztecAddress, names: Record<string, string>): Promise<void> {
+    return this.store.registerContractFunctionName(address, names);
   }
   getContractFunctionName(address: AztecAddress, selector: FunctionSelector): Promise<string | undefined> {
     return this.store.getContractFunctionName(address, selector);
diff --git a/yarn-project/archiver/src/archiver/archiver_store.ts b/yarn-project/archiver/src/archiver/archiver_store.ts
index 11d0abd7c35..d2056cba085 100644
--- a/yarn-project/archiver/src/archiver/archiver_store.ts
+++ b/yarn-project/archiver/src/archiver/archiver_store.ts
@@ -18,7 +18,7 @@ import {
   type PrivateLog,
   type UnconstrainedFunctionWithMembershipProof,
 } from '@aztec/circuits.js';
-import { type ContractArtifact, type FunctionSelector } from '@aztec/foundation/abi';
+import { type FunctionSelector } from '@aztec/foundation/abi';
 import { type AztecAddress } from '@aztec/foundation/aztec-address';
 
 import { type DataRetrieval } from './structs/data_retrieval.js';
@@ -261,12 +261,10 @@ export interface ArchiverDataStore {
   /** Returns the list of all class ids known by the archiver. */
   getContractClassIds(): Promise<Fr[]>;
 
-  addContractArtifact(address: AztecAddress, contract: ContractArtifact): Promise<void>;
-  getContractArtifact(address: AztecAddress): Promise<ContractArtifact | undefined>;
-
   // TODO:  These function names are in memory only as they are for development/debugging. They require the full contract
   //        artifact supplied to the node out of band. This should be reviewed and potentially removed as part of
   //        the node api cleanup process.
+  registerContractFunctionName(address: AztecAddress, names: Record<string, string>): Promise<void>;
   getContractFunctionName(address: AztecAddress, selector: FunctionSelector): Promise<string | undefined>;
 
   /**
diff --git a/yarn-project/archiver/src/archiver/kv_archiver_store/contract_artifacts_store.test.ts b/yarn-project/archiver/src/archiver/kv_archiver_store/contract_artifacts_store.test.ts
deleted file mode 100644
index 54fc9c7d69e..00000000000
--- a/yarn-project/archiver/src/archiver/kv_archiver_store/contract_artifacts_store.test.ts
+++ /dev/null
@@ -1,22 +0,0 @@
-import { AztecAddress } from '@aztec/circuits.js';
-import { openTmpStore } from '@aztec/kv-store/lmdb';
-import { BenchmarkingContractArtifact } from '@aztec/noir-contracts.js/Benchmarking';
-
-import { beforeEach } from '@jest/globals';
-
-import { KVArchiverDataStore } from './kv_archiver_store.js';
-
-describe('Contract Artifact Store', () => {
-  let archiverStore: KVArchiverDataStore;
-
-  beforeEach(() => {
-    archiverStore = new KVArchiverDataStore(openTmpStore());
-  });
-
-  it('Should add and return contract artifacts', async () => {
-    const artifact = BenchmarkingContractArtifact;
-    const address = AztecAddress.random();
-    await archiverStore.addContractArtifact(address, artifact);
-    await expect(archiverStore.getContractArtifact(address)).resolves.toEqual(artifact);
-  });
-});
diff --git a/yarn-project/archiver/src/archiver/kv_archiver_store/contract_artifacts_store.ts b/yarn-project/archiver/src/archiver/kv_archiver_store/contract_artifacts_store.ts
deleted file mode 100644
index 8e18df413f2..00000000000
--- a/yarn-project/archiver/src/archiver/kv_archiver_store/contract_artifacts_store.ts
+++ /dev/null
@@ -1,22 +0,0 @@
-import { type AztecAddress } from '@aztec/circuits.js';
-import { type ContractArtifact } from '@aztec/foundation/abi';
-import { type AztecKVStore, type AztecMap } from '@aztec/kv-store';
-import { contractArtifactFromBuffer, contractArtifactToBuffer } from '@aztec/types/abi';
-
-export class ContractArtifactsStore {
-  #contractArtifacts: AztecMap<string, Buffer>;
-
-  constructor(db: AztecKVStore) {
-    this.#contractArtifacts = db.openMap('archiver_contract_artifacts');
-  }
-
-  addContractArtifact(address: AztecAddress, contractArtifact: ContractArtifact): Promise<void> {
-    return this.#contractArtifacts.set(address.toString(), contractArtifactToBuffer(contractArtifact));
-  }
-
-  getContractArtifact(address: AztecAddress): ContractArtifact | undefined {
-    const contractArtifact = this.#contractArtifacts.get(address.toString());
-    // TODO(@spalladino): AztecMap lies and returns Uint8Arrays instead of Buffers, hence the extra Buffer.from.
-    return contractArtifact && contractArtifactFromBuffer(Buffer.from(contractArtifact));
-  }
-}
diff --git a/yarn-project/archiver/src/archiver/kv_archiver_store/kv_archiver_store.ts b/yarn-project/archiver/src/archiver/kv_archiver_store/kv_archiver_store.ts
index b7dfaa60041..ac12a3ba185 100644
--- a/yarn-project/archiver/src/archiver/kv_archiver_store/kv_archiver_store.ts
+++ b/yarn-project/archiver/src/archiver/kv_archiver_store/kv_archiver_store.ts
@@ -17,7 +17,7 @@ import {
   type PrivateLog,
   type UnconstrainedFunctionWithMembershipProof,
 } from '@aztec/circuits.js';
-import { type ContractArtifact, FunctionSelector } from '@aztec/foundation/abi';
+import { type FunctionSelector } from '@aztec/foundation/abi';
 import { type AztecAddress } from '@aztec/foundation/aztec-address';
 import { createLogger } from '@aztec/foundation/log';
 import { type AztecKVStore } from '@aztec/kv-store';
@@ -26,7 +26,6 @@ import { type ArchiverDataStore, type ArchiverL1SynchPoint } from '../archiver_s
 import { type DataRetrieval } from '../structs/data_retrieval.js';
 import { type L1Published } from '../structs/published.js';
 import { BlockStore } from './block_store.js';
-import { ContractArtifactsStore } from './contract_artifacts_store.js';
 import { ContractClassStore } from './contract_class_store.js';
 import { ContractInstanceStore } from './contract_instance_store.js';
 import { LogStore } from './log_store.js';
@@ -43,7 +42,6 @@ export class KVArchiverDataStore implements ArchiverDataStore {
   #messageStore: MessageStore;
   #contractClassStore: ContractClassStore;
   #contractInstanceStore: ContractInstanceStore;
-  #contractArtifactStore: ContractArtifactsStore;
   private functionNames = new Map<string, string>();
 
   #log = createLogger('archiver:data-store');
@@ -54,27 +52,22 @@ export class KVArchiverDataStore implements ArchiverDataStore {
     this.#messageStore = new MessageStore(db);
     this.#contractClassStore = new ContractClassStore(db);
     this.#contractInstanceStore = new ContractInstanceStore(db);
-    this.#contractArtifactStore = new ContractArtifactsStore(db);
     this.#nullifierStore = new NullifierStore(db);
   }
 
-  getContractArtifact(address: AztecAddress): Promise<ContractArtifact | undefined> {
-    return Promise.resolve(this.#contractArtifactStore.getContractArtifact(address));
-  }
-
   // TODO:  These function names are in memory only as they are for development/debugging. They require the full contract
   //        artifact supplied to the node out of band. This should be reviewed and potentially removed as part of
   //        the node api cleanup process.
-  getContractFunctionName(address: AztecAddress, selector: FunctionSelector): Promise<string | undefined> {
+  getContractFunctionName(_address: AztecAddress, selector: FunctionSelector): Promise<string | undefined> {
     return Promise.resolve(this.functionNames.get(selector.toString()));
   }
 
-  async addContractArtifact(address: AztecAddress, contract: ContractArtifact): Promise<void> {
-    await this.#contractArtifactStore.addContractArtifact(address, contract);
-    // Building tup this map of selectors to function names save expensive re-hydration of contract artifacts later
-    contract.functions.forEach(f => {
-      this.functionNames.set(FunctionSelector.fromNameAndParameters(f.name, f.parameters).toString(), f.name);
-    });
+  registerContractFunctionName(_address: AztecAddress, names: Record<string, string>): Promise<void> {
+    for (const [selector, name] of Object.entries(names)) {
+      this.functionNames.set(selector, name);
+    }
+
+    return Promise.resolve();
   }
 
   getContractClass(id: Fr): Promise<ContractClassPublic | undefined> {
diff --git a/yarn-project/archiver/src/archiver/memory_archiver_store/memory_archiver_store.ts b/yarn-project/archiver/src/archiver/memory_archiver_store/memory_archiver_store.ts
index 1a31c8d14ce..fab9073e458 100644
--- a/yarn-project/archiver/src/archiver/memory_archiver_store/memory_archiver_store.ts
+++ b/yarn-project/archiver/src/archiver/memory_archiver_store/memory_archiver_store.ts
@@ -28,7 +28,7 @@ import {
   type PrivateLog,
   type UnconstrainedFunctionWithMembershipProof,
 } from '@aztec/circuits.js';
-import { type ContractArtifact, FunctionSelector } from '@aztec/foundation/abi';
+import { type FunctionSelector } from '@aztec/foundation/abi';
 import { type AztecAddress } from '@aztec/foundation/aztec-address';
 import { createLogger } from '@aztec/foundation/log';
 
@@ -68,8 +68,6 @@ export class MemoryArchiverStore implements ArchiverDataStore {
    */
   private l1ToL2Messages = new L1ToL2MessageStore();
 
-  private contractArtifacts: Map<string, ContractArtifact> = new Map();
-
   private contractClasses: Map<string, ContractClassPublicWithBlockNumber> = new Map();
 
   private bytecodeCommitments: Map<string, Fr> = new Map();
@@ -86,6 +84,8 @@ export class MemoryArchiverStore implements ArchiverDataStore {
   private lastProvenL2BlockNumber: number = 0;
   private lastProvenL2EpochNumber: number = 0;
 
+  private functionNames = new Map<string, string>();
+
   #log = createLogger('archiver:data-store');
 
   constructor(
@@ -730,26 +730,16 @@ export class MemoryArchiverStore implements ArchiverDataStore {
     });
   }
 
-  public addContractArtifact(address: AztecAddress, contract: ContractArtifact): Promise<void> {
-    this.contractArtifacts.set(address.toString(), contract);
-    return Promise.resolve();
-  }
-
-  public getContractArtifact(address: AztecAddress): Promise<ContractArtifact | undefined> {
-    return Promise.resolve(this.contractArtifacts.get(address.toString()));
+  public getContractFunctionName(_address: AztecAddress, selector: FunctionSelector): Promise<string | undefined> {
+    return Promise.resolve(this.functionNames.get(selector.toString()));
   }
 
-  async getContractFunctionName(address: AztecAddress, selector: FunctionSelector): Promise<string | undefined> {
-    const artifact = await this.getContractArtifact(address);
-
-    if (!artifact) {
-      return undefined;
+  public registerContractFunctionName(_address: AztecAddress, names: Record<string, string>): Promise<void> {
+    for (const [selector, name] of Object.entries(names)) {
+      this.functionNames.set(selector, name);
     }
 
-    const func = artifact.functions.find(f =>
-      FunctionSelector.fromNameAndParameters({ name: f.name, parameters: f.parameters }).equals(selector),
-    );
-    return Promise.resolve(func?.name);
+    return Promise.resolve();
   }
 
   public estimateSize(): { mappingSize: number; actualSize: number; numItems: number } {
diff --git a/yarn-project/archiver/src/factory.ts b/yarn-project/archiver/src/factory.ts
index 817770dcd52..018cbec57f9 100644
--- a/yarn-project/archiver/src/factory.ts
+++ b/yarn-project/archiver/src/factory.ts
@@ -4,6 +4,7 @@ import {
   computePublicBytecodeCommitment,
   getContractClassFromArtifact,
 } from '@aztec/circuits.js';
+import { FunctionSelector, FunctionType } from '@aztec/foundation/abi';
 import { createLogger } from '@aztec/foundation/log';
 import { type Maybe } from '@aztec/foundation/types';
 import { type DataStoreConfig } from '@aztec/kv-store/config';
@@ -45,7 +46,15 @@ async function registerProtocolContracts(store: KVArchiverDataStore) {
       privateFunctions: [],
       unconstrainedFunctions: [],
     };
-    await store.addContractArtifact(contract.address, contract.artifact);
+
+    const functionNames: Record<string, string> = {};
+    for (const fn of contract.artifact.functions) {
+      if (fn.functionType === FunctionType.PUBLIC) {
+        functionNames[FunctionSelector.fromNameAndParameters(fn.name, fn.parameters).toString()] = fn.name;
+      }
+    }
+
+    await store.registerContractFunctionName(contract.address, functionNames);
     const bytecodeCommitment = computePublicBytecodeCommitment(contractClassPublic.packedBytecode);
     await store.addContractClasses([contractClassPublic], [bytecodeCommitment], blockNumber);
     await store.addContractInstances([contract.instance], blockNumber);
diff --git a/yarn-project/aztec-node/src/aztec-node/server.ts b/yarn-project/aztec-node/src/aztec-node/server.ts
index 60e2ce1ca22..59ba35913fe 100644
--- a/yarn-project/aztec-node/src/aztec-node/server.ts
+++ b/yarn-project/aztec-node/src/aztec-node/server.ts
@@ -55,7 +55,6 @@ import {
 } from '@aztec/circuits.js';
 import { computePublicDataTreeLeafSlot } from '@aztec/circuits.js/hash';
 import { type L1ContractAddresses, createEthereumChain } from '@aztec/ethereum';
-import { type ContractArtifact } from '@aztec/foundation/abi';
 import { AztecAddress } from '@aztec/foundation/aztec-address';
 import { padArrayEnd } from '@aztec/foundation/collection';
 import { type Logger, createLogger } from '@aztec/foundation/log';
@@ -901,10 +900,8 @@ export class AztecNodeService implements AztecNode, Traceable {
     return this.contractDataSource.addContractClass(contractClass);
   }
 
-  public addContractArtifact(address: AztecAddress, artifact: ContractArtifact): Promise<void> {
-    this.log.info(`Adding contract artifact ${artifact.name} for ${address.toString()} via API`);
-    // TODO: Node should validate the artifact before accepting it
-    return this.contractDataSource.addContractArtifact(address, artifact);
+  public registerContractFunctionNames(_address: AztecAddress, names: Record<string, string>): Promise<void> {
+    return this.contractDataSource.registerContractFunctionNames(_address, names);
   }
 
   public flushTxs(): Promise<void> {
diff --git a/yarn-project/circuit-types/src/interfaces/archiver.test.ts b/yarn-project/circuit-types/src/interfaces/archiver.test.ts
index 04aa0e0341d..4824b95365a 100644
--- a/yarn-project/circuit-types/src/interfaces/archiver.test.ts
+++ b/yarn-project/circuit-types/src/interfaces/archiver.test.ts
@@ -17,7 +17,6 @@ import { type JsonRpcTestContext, createJsonRpcTestSetup } from '@aztec/foundati
 import { fileURLToPath } from '@aztec/foundation/url';
 import { loadContractArtifact } from '@aztec/types/abi';
 
-import { deepStrictEqual } from 'assert';
 import { readFileSync } from 'fs';
 import omit from 'lodash.omit';
 import { resolve } from 'path';
@@ -223,15 +222,12 @@ describe('ArchiverApiSchema', () => {
     expect(result).toBe(1n);
   });
 
-  it('getContractArtifact', async () => {
-    const result = await context.client.getContractArtifact(AztecAddress.random());
-    deepStrictEqual(result, artifact);
+  it('registerContractFunctionNames', async () => {
+    await context.client.registerContractFunctionNames(AztecAddress.random(), {
+      [FunctionSelector.random().toString()]: 'test_fn',
+    });
   });
 
-  it('addContractArtifact', async () => {
-    await context.client.addContractArtifact(AztecAddress.random(), artifact);
-  }, 20_000);
-
   it('getContract', async () => {
     const address = AztecAddress.random();
     const result = await context.client.getContract(address);
@@ -378,10 +374,9 @@ class MockArchiver implements ArchiverApi {
     expect(address).toBeInstanceOf(AztecAddress);
     return Promise.resolve(this.artifact);
   }
-  addContractArtifact(address: AztecAddress, contract: ContractArtifact): Promise<void> {
+  registerContractFunctionNames(address: AztecAddress, names: Record<string, string>): Promise<void> {
     expect(address).toBeInstanceOf(AztecAddress);
-    // We use node's native assertion because jest's is too slow
-    deepStrictEqual(contract, this.artifact);
+    expect(names).toEqual(expect.any(Object));
     return Promise.resolve();
   }
   getL1ToL2Messages(blockNumber: bigint): Promise<Fr[]> {
diff --git a/yarn-project/circuit-types/src/interfaces/archiver.ts b/yarn-project/circuit-types/src/interfaces/archiver.ts
index bf8ace98b60..302df9b5732 100644
--- a/yarn-project/circuit-types/src/interfaces/archiver.ts
+++ b/yarn-project/circuit-types/src/interfaces/archiver.ts
@@ -6,7 +6,6 @@ import {
   PrivateLog,
   PublicFunctionSchema,
 } from '@aztec/circuits.js';
-import { ContractArtifactSchema } from '@aztec/foundation/abi';
 import { type ApiSchemaFor, optional, schemas } from '@aztec/foundation/schemas';
 
 import { z } from 'zod';
@@ -69,8 +68,10 @@ export const ArchiverApiSchema: ApiSchemaFor<ArchiverApi> = {
   getBytecodeCommitment: z.function().args(schemas.Fr).returns(schemas.Fr),
   getContract: z.function().args(schemas.AztecAddress).returns(ContractInstanceWithAddressSchema.optional()),
   getContractClassIds: z.function().args().returns(z.array(schemas.Fr)),
-  getContractArtifact: z.function().args(schemas.AztecAddress).returns(ContractArtifactSchema.optional()),
-  addContractArtifact: z.function().args(schemas.AztecAddress, ContractArtifactSchema).returns(z.void()),
+  registerContractFunctionNames: z
+    .function()
+    .args(schemas.AztecAddress, z.record(z.string(), z.string()))
+    .returns(z.void()),
   getL1ToL2Messages: z.function().args(schemas.BigInt).returns(z.array(schemas.Fr)),
   getL1ToL2MessageIndex: z.function().args(schemas.Fr).returns(schemas.BigInt.optional()),
   // TODO(#10007): Remove this method
diff --git a/yarn-project/circuit-types/src/interfaces/aztec-node.test.ts b/yarn-project/circuit-types/src/interfaces/aztec-node.test.ts
index 3bb4ee18185..53fee1105c6 100644
--- a/yarn-project/circuit-types/src/interfaces/aztec-node.test.ts
+++ b/yarn-project/circuit-types/src/interfaces/aztec-node.test.ts
@@ -19,13 +19,12 @@ import {
   getContractClassFromArtifact,
 } from '@aztec/circuits.js';
 import { type L1ContractAddresses, L1ContractsNames } from '@aztec/ethereum';
-import { type ContractArtifact } from '@aztec/foundation/abi';
+import { type ContractArtifact, FunctionSelector } from '@aztec/foundation/abi';
 import { memoize } from '@aztec/foundation/decorators';
 import { type JsonRpcTestContext, createJsonRpcTestSetup } from '@aztec/foundation/json-rpc/test';
 import { fileURLToPath } from '@aztec/foundation/url';
 import { loadContractArtifact } from '@aztec/types/abi';
 
-import { deepStrictEqual } from 'assert';
 import { readFileSync } from 'fs';
 import omit from 'lodash.omit';
 import times from 'lodash.times';
@@ -224,9 +223,11 @@ describe('AztecNodeApiSchema', () => {
     expect(response).toEqual(Object.fromEntries(ProtocolContractsNames.map(name => [name, expect.any(AztecAddress)])));
   });
 
-  it('addContractArtifact', async () => {
-    await context.client.addContractArtifact(AztecAddress.random(), artifact);
-  }, 20_000);
+  it('registerContractFunctionNames', async () => {
+    await context.client.registerContractFunctionNames(AztecAddress.random(), {
+      [FunctionSelector.random().toString()]: 'test_fn',
+    });
+  });
 
   it('getPrivateLogs', async () => {
     const response = await context.client.getPrivateLogs(1, 1);
@@ -505,9 +506,7 @@ class MockAztecNode implements AztecNode {
       ) as ProtocolContractAddresses,
     );
   }
-  addContractArtifact(address: AztecAddress, artifact: ContractArtifact): Promise<void> {
-    expect(address).toBeInstanceOf(AztecAddress);
-    deepStrictEqual(artifact, this.artifact);
+  registerContractFunctionNames(_address: AztecAddress, _names: Record<string, string>): Promise<void> {
     return Promise.resolve();
   }
   getPrivateLogs(_from: number, _limit: number): Promise<PrivateLog[]> {
diff --git a/yarn-project/circuit-types/src/interfaces/aztec-node.ts b/yarn-project/circuit-types/src/interfaces/aztec-node.ts
index e1979488813..f4b052b87fd 100644
--- a/yarn-project/circuit-types/src/interfaces/aztec-node.ts
+++ b/yarn-project/circuit-types/src/interfaces/aztec-node.ts
@@ -17,7 +17,6 @@ import {
   ProtocolContractAddressesSchema,
 } from '@aztec/circuits.js';
 import { type L1ContractAddresses, L1ContractAddressesSchema } from '@aztec/ethereum';
-import { type ContractArtifact, ContractArtifactSchema } from '@aztec/foundation/abi';
 import type { AztecAddress } from '@aztec/foundation/aztec-address';
 import type { Fr } from '@aztec/foundation/fields';
 import { createSafeJsonRpcClient, defaultFetch } from '@aztec/foundation/json-rpc/client';
@@ -287,7 +286,7 @@ export interface AztecNode
    * @param aztecAddress
    * @param artifact
    */
-  addContractArtifact(address: AztecAddress, artifact: ContractArtifact): Promise<void>;
+  registerContractFunctionNames(address: AztecAddress, names: Record<string, string>): Promise<void>;
 
   /**
    * Retrieves all private logs from up to `limit` blocks, starting from the block number `from`.
@@ -534,7 +533,10 @@ export const AztecNodeApiSchema: ApiSchemaFor<AztecNode> = {
 
   getProtocolContractAddresses: z.function().returns(ProtocolContractAddressesSchema),
 
-  addContractArtifact: z.function().args(schemas.AztecAddress, ContractArtifactSchema).returns(z.void()),
+  registerContractFunctionNames: z
+    .function()
+    .args(schemas.AztecAddress, z.record(z.string(), z.string()))
+    .returns(z.void()),
 
   getPrivateLogs: z.function().args(z.number(), z.number()).returns(z.array(PrivateLog.schema)),
 
diff --git a/yarn-project/circuits.js/src/contract/interfaces/contract_data_source.ts b/yarn-project/circuits.js/src/contract/interfaces/contract_data_source.ts
index 84ed5f4afd9..388a828b9cb 100644
--- a/yarn-project/circuits.js/src/contract/interfaces/contract_data_source.ts
+++ b/yarn-project/circuits.js/src/contract/interfaces/contract_data_source.ts
@@ -1,4 +1,4 @@
-import { type ContractArtifact, type FunctionSelector } from '@aztec/foundation/abi';
+import { type FunctionSelector } from '@aztec/foundation/abi';
 import { type AztecAddress } from '@aztec/foundation/aztec-address';
 import { type Fr } from '@aztec/foundation/fields';
 
@@ -45,11 +45,8 @@ export interface ContractDataSource {
    */
   getContractClassIds(): Promise<Fr[]>;
 
-  /** Returns a contract artifact. */
-  getContractArtifact(address: AztecAddress): Promise<ContractArtifact | undefined>;
-
   /** Returns a function's name */
   getContractFunctionName(address: AztecAddress, selector: FunctionSelector): Promise<string | undefined>;
-  /** Registers a a contract artifact. */
-  addContractArtifact(address: AztecAddress, contract: ContractArtifact): Promise<void>;
+  /** Registers a function names. Useful for debugging. */
+  registerContractFunctionNames(address: AztecAddress, names: Record<string, string>): Promise<void>;
 }
diff --git a/yarn-project/pxe/src/pxe_service/pxe_service.ts b/yarn-project/pxe/src/pxe_service/pxe_service.ts
index f919d5a137b..ec8c0226d61 100644
--- a/yarn-project/pxe/src/pxe_service/pxe_service.ts
+++ b/yarn-project/pxe/src/pxe_service/pxe_service.ts
@@ -52,6 +52,7 @@ import {
   type ContractArtifact,
   EventSelector,
   FunctionSelector,
+  FunctionType,
   encodeArguments,
 } from '@aztec/foundation/abi';
 import { Fr, type Point } from '@aztec/foundation/fields';
@@ -240,8 +241,14 @@ export class PXEService implements PXE {
 
       await this.db.addContractArtifact(contractClassId, artifact);
 
-      // TODO: PXE may not want to broadcast the artifact to the network
-      await this.node.addContractArtifact(instance.address, artifact);
+      const functionNames: Record<string, string> = {};
+      for (const fn of artifact.functions) {
+        if (fn.functionType === FunctionType.PUBLIC) {
+          functionNames[FunctionSelector.fromNameAndParameters(fn.name, fn.parameters).toString()] = fn.name;
+        }
+      }
+
+      await this.node.registerContractFunctionNames(instance.address, functionNames);
 
       // TODO(#10007): Node should get public contract class from the registration event, not from PXE registration
       await this.node.addContractClass({ ...contractClass, privateFunctions: [], unconstrainedFunctions: [] });
diff --git a/yarn-project/simulator/src/public/fixtures/index.ts b/yarn-project/simulator/src/public/fixtures/index.ts
index 6789e8622d3..36c126c0ef3 100644
--- a/yarn-project/simulator/src/public/fixtures/index.ts
+++ b/yarn-project/simulator/src/public/fixtures/index.ts
@@ -4,6 +4,7 @@ import {
   BlockHeader,
   CallContext,
   type ContractClassPublic,
+  type ContractDataSource,
   type ContractInstanceWithAddress,
   DEFAULT_GAS_LIMIT,
   DEPLOYER_CONTRACT_ADDRESS,
@@ -144,7 +145,7 @@ export function createTxForPublicCall(
   return tx;
 }
 
-export class MockedAvmTestContractDataSource {
+export class MockedAvmTestContractDataSource implements ContractDataSource {
   private fnName = 'public_dispatch';
   private bytecode: Buffer;
   public fnSelector: FunctionSelector;
@@ -218,7 +219,7 @@ export class MockedAvmTestContractDataSource {
     return Promise.resolve(this.fnName);
   }
 
-  addContractArtifact(_address: AztecAddress, _contract: ContractArtifact): Promise<void> {
+  registerContractFunctionNames(_address: AztecAddress, _names: Record<string, string>): Promise<void> {
     return Promise.resolve();
   }
 }
diff --git a/yarn-project/txe/src/node/txe_node.ts b/yarn-project/txe/src/node/txe_node.ts
index 35aa9266548..c798e9a9ae0 100644
--- a/yarn-project/txe/src/node/txe_node.ts
+++ b/yarn-project/txe/src/node/txe_node.ts
@@ -1,4 +1,4 @@
-import { type ContractArtifact, createLogger } from '@aztec/aztec.js';
+import { createLogger } from '@aztec/aztec.js';
 import {
   type AztecNode,
   type EpochProofQuote,
@@ -450,7 +450,7 @@ export class TXENode implements AztecNode {
    * @param aztecAddress
    * @param artifact
    */
-  addContractArtifact(_address: AztecAddress, _artifact: ContractArtifact): Promise<void> {
+  registerContractFunctionNames(_address: AztecAddress, _names: Record<string, string>): Promise<void> {
     throw new Error('TXE Node method addContractArtifact not implemented');
   }
 
diff --git a/yarn-project/txe/src/util/txe_public_contract_data_source.ts b/yarn-project/txe/src/util/txe_public_contract_data_source.ts
index a56aeb40d8b..7d15b9d8d48 100644
--- a/yarn-project/txe/src/util/txe_public_contract_data_source.ts
+++ b/yarn-project/txe/src/util/txe_public_contract_data_source.ts
@@ -85,8 +85,8 @@ export class TXEPublicContractDataSource implements ContractDataSource {
     return Promise.resolve(func?.name);
   }
 
-  addContractArtifact(address: AztecAddress, contract: ContractArtifact): Promise<void> {
-    return this.txeOracle.addContractArtifact(contract);
+  registerContractFunctionNames(_address: AztecAddress, _names: Record<string, string>): Promise<void> {
+    return Promise.resolve();
   }
 
   // TODO(#10007): Remove this method.