The VeriChip Corporation headed by CEO Scott Silverman manufactures the VeriChip, a "miniaturized, implantable Radio Frequency Identification Device (RFID) that has the potential to be used in a variety of security, financial, and other applications. About the size of a grain of rice, each VeriChip product contains a unique verification number and will be available in several formats. The verification number is captured by briefly passing a proprietary scanner over the VeriChip. A small amount of radio frequency energy passes from the scanner energizing the dormant VeriChip, which then emits a radio frequency signal transmitting the verification number." 
The VeriChip Corporation web site includes links to:
- Official VeriChip Web Site and GVS Registration.
- Verichip Management Team.
- Implantable Personal Verification Systems Brochure (pdf).
- "Get Chipped" VeriChip Pre-Registration Program.
- "Katrina Corpses Get 'Chipped'. A company is implanting RFID tags in corpses in Mississippi to help identify the dead," Red Herring, September 16, 2005. re Hurricane Katrina.
- "Former HHS head Tommy Thompson on board of Verichip Corp," Lone Wacko Blog, October 6, 2005. Former HHS Secretary Tommy G. Thompson joined the board in July 2005.