Reverse Engineering TicketMaster's Rotating Barcodes (SafeTix)

TicketMaster's barcode rendering process uses SHA-1 TOTPs generated from eventKey, customerKey, and Unix timestamp. The rawToken appears to rotate every time the page is refreshed, but remains valid after several hours. A base64 token string can be extracted using TicketMaster session credentials or by inspecting the browser console. This token can be used to generate PDF417 barcodes that are indistinguishable from official TicketMaster app barcodes.