diff --git a/api-v3/src/database/entities/asset.entity.ts b/api-v3/src/database/entities/asset.entity.ts
index 61046be..870bf9a 100644
--- a/api-v3/src/database/entities/asset.entity.ts
+++ b/api-v3/src/database/entities/asset.entity.ts
@@ -1,25 +1,43 @@
-import {
-  Column,
-  Entity,
-  Index,
-  PrimaryGeneratedColumn,
-} from 'typeorm';
+import { Column, Entity, Index, PrimaryGeneratedColumn } from 'typeorm';
 import { TimestampedEntity } from './timestamped.entity';
-import {
-  AssetDataOrigin,
-  AssetInformationStatus,
-  AssetOperationalStatus,
-} from './enums';
+
+export enum AssetInformationStatus {
+  DRAFT = 'DRAFT',
+  PENDING_SURVEY = 'PENDING_SURVEY',
+  SURVEYED = 'SURVEYED',
+  VALIDATED = 'VALIDATED',
+  OBSERVED = 'OBSERVED',
+  OUTDATED = 'OUTDATED',
+  INACTIVE = 'INACTIVE',
+}
+
+export enum AssetOperationalStatus {
+  UNKNOWN = 'UNKNOWN',
+  IN_SERVICE = 'IN_SERVICE',
+  TEMPORARILY_OUT_OF_SERVICE = 'TEMPORARILY_OUT_OF_SERVICE',
+  OUT_OF_SERVICE = 'OUT_OF_SERVICE',
+  DECOMMISSIONED = 'DECOMMISSIONED',
+  ABANDONED = 'ABANDONED',
+}
+
+export enum AssetDataOrigin {
+  MANUAL = 'MANUAL',
+  FIELD_SURVEY = 'FIELD_SURVEY',
+  PROVIDED_DOCUMENT = 'PROVIDED_DOCUMENT',
+  IMPORT = 'IMPORT',
+  SYSTEM = 'SYSTEM',
+}
 
 @Entity({ name: 'assets' })
-@Index('uq_assets_code', ['code'], { unique: true })
-@Index('idx_assets_parent', ['parentId'])
-@Index('idx_assets_type', ['assetTypeId'])
-@Index('idx_assets_status', ['informationStatus'])
+@Index('idx_assets_type_id', ['assetTypeId'])
+@Index('idx_assets_parent_id', ['parentId'])
+@Index('idx_assets_operational_area_id', ['operationalAreaId'])
+@Index('idx_assets_operator_company_id', ['operatorCompanyId'])
+@Index('idx_assets_inventory_family_id', ['inventoryFamilyId'])
+@Index('idx_assets_information_status', ['informationStatus'])
 @Index('idx_assets_operational_status', ['operationalStatus'])
-@Index('idx_assets_operational_area', ['operationalAreaId'])
-@Index('idx_assets_operator_company', ['operatorCompanyId'])
-@Index('idx_assets_inventory_family', ['inventoryFamilyId'])
+@Index('idx_assets_data_origin', ['dataOrigin'])
+@Index('idx_assets_provenance_verified_at', ['provenanceVerifiedAt'])
 export class Asset extends TimestampedEntity {
   @PrimaryGeneratedColumn('uuid')
   id!: string;
@@ -42,10 +60,10 @@ export class Asset extends TimestampedEntity {
   @Column({ type: 'varchar', length: 120 })
   code!: string;
 
-  @Column({ type: 'varchar', length: 240 })
+  @Column({ type: 'varchar', length: 200 })
   name!: string;
 
-  @Column({ name: 'common_name', type: 'varchar', length: 240, nullable: true })
+  @Column({ name: 'common_name', type: 'varchar', length: 200, nullable: true })
   commonName!: string | null;
 
   @Column({ type: 'text', nullable: true })
@@ -53,18 +71,14 @@ export class Asset extends TimestampedEntity {
 
   @Column({
     name: 'information_status',
-    type: 'varchar',
-    length: 20,
+    type: 'enum',
+    enum: AssetInformationStatus,
+    enumName: 'asset_information_status',
     default: AssetInformationStatus.DRAFT,
   })
   informationStatus!: AssetInformationStatus;
 
-  @Column({
-    name: 'operational_status',
-    type: 'varchar',
-    length: 24,
-    default: AssetOperationalStatus.IN_SERVICE,
-  })
+  @Column({ name: 'operational_status', type: 'enum', enum: AssetOperationalStatus, enumName: 'asset_operational_status', default: AssetOperationalStatus.UNKNOWN })
   operationalStatus!: AssetOperationalStatus;
 
   @Column({ name: 'created_by', type: 'uuid', nullable: true })
@@ -73,18 +87,16 @@ export class Asset extends TimestampedEntity {
   @Column({ name: 'updated_by', type: 'uuid', nullable: true })
   updatedBy!: string | null;
 
-  @Column({
-    name: 'data_origin',
-    type: 'varchar',
-    length: 20,
-    default: AssetDataOrigin.MANUAL,
-  })
+  @Column({ name: 'current_version', type: 'integer', default: 0 })
+  currentVersion!: number;
+
+  @Column({ name: 'data_origin', type: 'varchar', length: 32, default: AssetDataOrigin.MANUAL })
   dataOrigin!: AssetDataOrigin;
 
-  @Column({ name: 'source_name', type: 'varchar', length: 240, nullable: true })
+  @Column({ name: 'source_name', type: 'varchar', length: 160, nullable: true })
   sourceName!: string | null;
 
-  @Column({ name: 'source_reference', type: 'varchar', length: 500, nullable: true })
+  @Column({ name: 'source_reference', type: 'varchar', length: 255, nullable: true })
   sourceReference!: string | null;
 
   @Column({ name: 'source_observed_at', type: 'timestamptz', nullable: true })
@@ -99,9 +111,9 @@ export class Asset extends TimestampedEntity {
   @Column({ name: 'provenance_verified_by', type: 'uuid', nullable: true })
   provenanceVerifiedBy!: string | null;
 
+  @Column({ name: 'provenance_updated_at', type: 'timestamptz', default: () => 'CURRENT_TIMESTAMP' })
+  provenanceUpdatedAt!: Date;
+
   @Column({ name: 'provenance_updated_by', type: 'uuid', nullable: true })
   provenanceUpdatedBy!: string | null;
-
-  @Column({ name: 'current_version', type: 'integer', default: 0 })
-  currentVersion!: number;
-}
+}
\ No newline at end of file