Creating a Gold Certificate Token

Creating a new Gold Certificate Token (GCT)

• To create a new GCT, a new inscription must be created under the Vendor Root

• Vendors are free to use any inscription media format and artistic or visual style to represent their GCTs (e.g., static images, 3D models, animations).

• However, the metadata format must follow the protocol standard to ensure interoperability.

• Recursive HTML is one recommended approach for dynamic, interactive representations, but it is not required.

Metadata Format

Each GCT inscription must include the following metadata schema (using the ordinals inscription CBOR metadata standard):

{
  "custodian": "brinks",
  "external_url": "https://vendor.com/proofs/XYZ123456.pdf",
  "fineness": 999.9,
  "serial_number": "XYZ123456",
  "supplier": "swarm",
  "supplier_url": "https://swarm.com",
  "vault_location": "london",
  "vendor": "trio",
  "vendor_url": "https://trio.xyz",
  "weight_in_troy_ounce": 1,
  "notes": "Happy Birthday Dad, from Satoshi"
}

• custodian: The entity physically holding and securing the gold bar.

• external_url (optional): A URL pointing to any external reference related to the gold bar, such as a proof of authenticity or product page.

• fineness: The purity of the gold, typically expressed as parts per thousand (e.g., 999.9).

• serial_number: The unique serial number physically engraved on the gold bar.

• supplier: The gold supplier that sourced the physical bar.

• supplier_url (optional): A URL pointing to the supplier’s website or source information.

• vault_location: The name or region of the vault where the gold is stored.

• vendor: The entity managing the issuance and lifecycle of the GCT.

• vendor_url (optional): A URL pointing to the vendor’s main website or page.

• weight_in_troy_ounce: The exact weight of the gold bar, in Troy Ounce.

• notes (optional): Freeform notes attached to the GCT, which may include messages, dedications, or memetic content.

Diagram: Protocol Structure

Top-Level Inscription (Vendor Root)
│
├── GCT #1
├── GCT #2
├── GCT #3
└── ...