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  _  __     ___      _____      ___      _  _   
 | |/ //   / _ \\   / ____||   / _ \\   | \| || 
 | ' //   | / \ || / //---`'  | / \ ||  |  ' || 
 | . \\   | \_/ || \ \\___    | \_/ ||  | .  || 
 |_|\_\\   \___//   \_____||   \___//   |_|\_|| 
 `-` --`   `---`     `----`    `---`    `-` -`

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發送短信 : CREDERE: A Modular Blockchain Implementation for the Issuance, Sharing, and Verification of Digital Credentials