Method, medium, and system for reducing counterfeits online

A method comprising:

• receiving a request to publish availability of a candidate specimen of a physical item;
• accessing a physical item database that comprises a record that maps an authenticity criterion to an identifier of the physical item, the authenticity criterion describing a reference detail exhibited by a portion of a reference specimen of the physical item and by which the authenticity criterion is fulfillable;
• accessing an image database that comprises a reference image that depicts the portion of the reference specimen of the physical item, the portion of the reference specimen exhibiting the reference detail that fulfills the authenticity criterion mapped to the identifier of the physical item;
• generating a notification that comprises a suggestion that a user submit a candidate image that depicts a portion of the candidate specimen exhibiting the reference detail by which the authenticity criterion is fulfillable;
• causing, on a device, presentation of the notification;
• and
• adjusting a rank of the candidate specimen among a set of search results based on whether the user provided other candidate images in response to other suggestions.

A non-transitory machine-readable storage device comprising instructions that, when executed by one or more processors of a machine, cause the machine to perform operations comprising:

• receiving a request to publish availability of a candidate specimen of a physical item;
• accessing a physical item database that comprises a record that maps an authenticity criterion to an identifier of the physical item, the authenticity criterion describing a reference detail exhibited by a portion of a reference specimen of the physical item and by which the authenticity criterion is fulfillable;
• accessing an image database that comprises a reference image that depicts the portion of the reference specimen of the physical item, the portion of the reference specimen exhibiting the reference detail that fulfills the authenticity criterion mapped to the identifier of the physical item;
• generating a notification that comprises a suggestion that a user submit a candidate image that depicts a portion of the candidate specimen exhibiting the reference detail by which the authenticity criterion is fulfillable;
• causing presentation of the notification;
• and
• adjusting a rank of the candidate specimen among a set of search results based on whether the user provided other candidate images in response to other suggestions.