| http://www.w3.org/ns/prov#value | - Each bolt has an off-the-shelf ultrahigh-frequency (UHF) EPC RFID tag affixed to its end. (Red Ledge works with a variety of RFID tag and reader vendors, including Impinj, Intermec, Motorola Solutions , Nordic ID and Xerafy.) The unique ID number encoded to the tag is then linked to that fabric type in Red Ledge's automation software.
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