Unique ID Listing - significado y definición. Qué es Unique ID Listing
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Qué (quién) es Unique ID Listing - definición

REAL ESTATE AVAILABILITY NOT ADVERTISED PUBLICLY
Pocket Listing; Exclusive listing

Unique ID Listing      
<messaging> (UIDL) A system used by POP3 electronic mail servers to uniquely identify a mail message. Normally, a message is identified by its position in the list of messages but this will change when an earlier message is deleted. The UIDL is a fixed string of characters which is unique to the message. The UIDL of a message never changes and will never be reused, even when the message has been deleted from the user's mailbox. RFC 1725 (http://ds0.internic.net/rfc/rfc1725.txt). (1997-04-16)
Cross listing         
LEGAL TERM
Cross Listing; Primary and secondary listings; Secondary listing; Primary listing
Cross-listing (or multi-listing, or interlisting) of shares is when a firm lists its equity shares on one or more foreign stock exchange in addition to its domestic exchange. To be cross-listed, a company must thus comply with the requirements of all the stock exchanges in which it is listed, such as filing.
Unique identifier         
IDENTIFIER WHICH IS UNIQUE AND PERMANENT WITHIN A SUBSET OF SPACE AND TIME
Unique Identification Number; Unique identifiers; Unique Identifier(UID); Unique Object Identifier; Unique identifying code
A unique identifier (UID) is an identifier that is guaranteed to be unique among all identifiers used for those objects and for a specific purpose. The concept was formalized early in the development of Computer science and Information systems.

Wikipedia

Pocket listing

In the real estate industry in the United States, a pocket listing or hip pocket listing is a property where a broker sells a property through private connections rather than entering it into a multiple listing system (MLS) or otherwise publicly advertising it. In Canada, this is called an Exclusive Listing.