Patent Document ID: 9672551
Application ID: 14608074

Base Claim:
1. A system comprising: one or more modules comprising one or more hardware processors and configured to: receive a textual description of an entry representing a collectible item, the entry being requested for creation within a collection of entries representing collectible items at a network-based system, the textual description of the entry representing the collectible item being submitted by a user of the network-based system and received from a client device of the user by a server system within the network-based system, the entry, after creation, corresponding to a listing of the collectible item at the network-based system; generate a structured description of the entry based on the textual description of the entry, the structured description of the entry including a name-value pair derived from the textual description submitted by the user; determine that the entry is absent from the network-based system; and create the entry within the collection by storing the structured description of the entry in a database of the network-based system based on the determining that the entry is absent from the network-based system.

---

Claim 9:
9. The system of claim 1 , wherein the one or more modules are further configured to store a provenance code that corresponds to an item referenced by the entry, the provenance code being associated with the entry and usable to track history information of the item referenced by the entry.