What is a Goods Delivery Note (GDN)? A ship agent’s field guide
Every parcel that moves to or from a vessel changes hands at least three times before it reaches the deck. The Goods Delivery Note is the one record that ties those handovers together into a chain you can defend months later. Get it right and a dispute closes in minutes; get it wrong and you are reconstructing a week of handovers from memory and a stack of paper.
What a GDN actually is
A Goods Delivery Note (GDN) is the document a ship agent issues to record that goods were delivered into — or released from — their custody. It is not an invoice and it is not a bill of lading. Its single job is to answer one question with evidence: who handed what to whom, and when.
For a ship agent the GDN is the closing entry on a parcel’s custody chain. It records the parcel’s identity, the parties on both sides of the handover, the condition at the point of transfer, and a signature that makes the transfer accountable.
What every GDN must contain
A defensible GDN leaves no field to memory. At minimum it should carry:
- A unique reference number that maps back to the parcel and the vessel call.
- The vessel name and IMO number, plus the voyage or port-call reference.
- A description of the goods, quantity, and any markings — including bonded or dangerous-goods status.
- The receiving and releasing parties, named, with the timestamp of the handover.
- The condition of the goods at handover, with any exceptions noted explicitly.
- A signature (or cryptographic equivalent) from the party accepting custody.
Why the paper version fails
A paper GDN is only as trustworthy as the filing cabinet it lives in. Signatures get smudged, carbon copies diverge, and the one person who remembers the handover is on leave when the claim arrives. Worse, a paper note can be back-dated or altered after the fact, and you have no way to prove it was not.
The failure mode is always the same: a parcel goes missing or arrives damaged, the counterparty disputes the condition at handover, and the agent cannot produce a timestamped, untampered record. The cost is rarely the parcel — it is the hours of reconstruction and the relationship damage.
The dispute test
Ask of any GDN: if a claim landed today for a handover six months ago, could you prove the condition and the time of transfer without relying on anyone’s memory? If not, the note is decoration, not evidence.
Making a GDN tamper-evident
A digital GDN closes the gaps the paper version leaves open. Instead of a signature on a page, the document is generated from an immutable custody chain — every status change timestamped, attributed, and locked once written.
SeaPillar seals each GDN with a SHA-256 integrity hash derived from that chain at the moment of generation. Any later alteration to the document changes the hash, so tampering is detectable by anyone who checks. The signature is captured digitally and bound to the record, not scanned in afterwards.
- 1The parcel is logged on intake — identity, vessel, condition.
- 2Each handover writes a timestamped, attributed event to the custody chain.
- 3At delivery the GDN is generated from that chain and sealed with an integrity hash.
- 4The receiving party confirms, and the confirmation is bound into the record.
When you can issue one
A common mistake is treating the GDN as a final-step-only document. In practice a ship agent often needs to produce one well before final delivery — for an inspection, a customs query, or an interim handover to a warehouse.
SeaPillar makes a GDN printable from the moment a parcel is received, not only once it is staged for delivery, so the document is available at every point the custody chain has something worth proving.
Frequently asked questions
- Is a Goods Delivery Note the same as a bill of lading?
- No. A bill of lading is a contract of carriage and a document of title for a shipment. A Goods Delivery Note records a specific physical handover of goods into or out of an agent’s custody, with the condition and time of transfer. They serve different legal purposes and are issued by different parties.
- When can a ship agent issue a GDN?
- A GDN can be issued at any point custody is transferred. With SeaPillar a GDN is printable from the moment a parcel is received — not only once it is staged for delivery — so it is available for inspections, customs queries, and interim handovers.
- How do you prove a GDN has not been altered?
- A digital GDN sealed with a cryptographic integrity hash can be verified: any change to the document after generation changes the hash. SeaPillar derives a SHA-256 hash from the immutable custody chain at generation time, so tampering is detectable by anyone who checks the document against its hash.
- GDN
- documentation
- custody chain
- ship agents