If so, where might I find such tags?
Yes, they can. There are tags on the market from Tego, Marubeni Chemix, Fujitsu and Xerafy that can hold either 4 or 8 kilobytes of data (see A Flurry of High-Memory Tags Take Flight). These should work for your purposes.
—Mark Roberti, Founder and Editor, RFID Journal
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