diff --git a/src/DigitalData.DEX.Domain/Entities/OutputReferences.cs b/src/DigitalData.DEX.Domain/Entities/OutputReferences.cs
index 76d9d8b..cdb38f6 100644
--- a/src/DigitalData.DEX.Domain/Entities/OutputReferences.cs
+++ b/src/DigitalData.DEX.Domain/Entities/OutputReferences.cs
@@ -1,8 +1,78 @@
-using System.ComponentModel.DataAnnotations.Schema;
+using System;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
 
 namespace DigitalData.DEX.Domain.Entities;
 
 [Table("TBDEX_OUTPUT_REFERENCES", Schema = "dbo")]
 public class OutputReferences : Entity
 {
+    [Key]
+    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+    [Column("GUID", TypeName = "bigint")]
+    public long Guid { get; set; }
+
+    [Column("OUTPUT_ID", TypeName = "bigint")]
+    public long OutputId { get; set; }
+
+    [Required]
+    [MaxLength(150)]
+    [Column("REFERENCE1", TypeName = "nvarchar(150)")]
+    public string Reference1 { get; set; } = null!;
+
+    [MaxLength(150)]
+    [Column("REFERENCE2", TypeName = "nvarchar(150)")]
+    public string? Reference2 { get; set; }
+
+    [MaxLength(150)]
+    [Column("REFERENCE3", TypeName = "nvarchar(150)")]
+    public string? Reference3 { get; set; }
+
+    [MaxLength(150)]
+    [Column("REFERENCE4", TypeName = "nvarchar(150)")]
+    public string? Reference4 { get; set; }
+
+    [MaxLength(150)]
+    [Column("REFERENCE5", TypeName = "nvarchar(150)")]
+    public string? Reference5 { get; set; }
+
+    [MaxLength(255)]
+    [Column("EXTERNAL_REFERENCE1", TypeName = "nvarchar(255)")]
+    public string? ExternalReference1 { get; set; }
+
+    [MaxLength(255)]
+    [Column("EXTERNAL_REFERENCE2", TypeName = "nvarchar(255)")]
+    public string? ExternalReference2 { get; set; }
+
+    [MaxLength(255)]
+    [Column("EXTERNAL_REFERENCE3", TypeName = "nvarchar(255)")]
+    public string? ExternalReference3 { get; set; }
+
+    [MaxLength(255)]
+    [Column("EXTERNAL_REFERENCE4", TypeName = "nvarchar(255)")]
+    public string? ExternalReference4 { get; set; }
+
+    [MaxLength(255)]
+    [Column("EXTERNAL_REFERENCE5", TypeName = "nvarchar(255)")]
+    public string? ExternalReference5 { get; set; }
+
+    [MaxLength(50)]
+    [Column("EXPORT_NUMBER", TypeName = "nvarchar(50)")]
+    public string? ExportNumber { get; set; }
+
+    [Required]
+    [MaxLength(50)]
+    [Column("ADDED_WHO", TypeName = "nvarchar(50)")]
+    public string AddedWho { get; set; } = null!;
+
+    [Required]
+    [Column("ADDED_WHEN", TypeName = "datetime")]
+    public DateTime AddedWhen { get; set; }
+
+    [MaxLength(50)]
+    [Column("CHANGED_WHO", TypeName = "nvarchar(50)")]
+    public string? ChangedWho { get; set; }
+
+    [Column("CHANGED_WHEN", TypeName = "datetime")]
+    public DateTime? ChangedWhen { get; set; }
 }