Add note on why validator pubkey used as key instead of index

ChainSafe · Jan 14, 2025 · d00450b · d00450b
1 parent b6ae0bd
commit d00450b
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/packages/beacon-node/src/execution/builder/cache.ts b/packages/beacon-node/src/execution/builder/cache.ts
@@ -10,6 +10,11 @@ export type ValidatorRegistration = {
 };
 
 export class ValidatorRegistrationCache {
+  /**
+   * Map to track registrations by validator pubkey which is used here instead of
+   * validator index as `bellatrix.ValidatorRegistrationV1` does not contain the index
+   * and builder flow in general prefers to use pubkey over index.
+   */
   private readonly registrationByValidatorPubkey: Map<string, ValidatorRegistration>;
   constructor() {
     this.registrationByValidatorPubkey = new Map();