Nexo item:

minecraft:paper[lore=[{color: "#C4BE97", italic: 0b, text: "A workable metal ingot."}],custom_model_data={floats: [1054.0f]},custom_data={PublicBukkitValues: {"nexo:id": "bronze_ingot"}},item_name={color: "gold", text: "Bronze Ingot"}]

Flag Item:

minecraft:paper[custom_model_data={floats: [1054.0f]},lore=[{extra: [{bold: 0b, color: "#C4BE97", italic: 0b, obfuscated: 0b, strikethrough: 0b, text: "A workable metal ingot.", underlined: 0b}], text: ""}],custom_data={PublicBukkitValues: {"nexo:id": "bronze_ingot"}},item_name={color: "gold", text: "Bronze Ingot"}]