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  _____     _____      _____    ______            
 / ____||  |  ___||   / ___//  /_   _//   ____    
/ //---`'  | ||__     \___ \\   -| ||-   |    \\  
\ \\___    | ||__     /    //   _| ||_   | [] ||  
 \_____||  |_____||  /____//   /_____//  |  __//  
  `----`   `-----`  `-----`    `-----`   |_|`-`   
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Text this: Cross-blockchain architecture for secure storage and verification of vaccination records