hashcash software package provides postage payment scheme for email based on hash calculations, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install hashcash
hashcash is installed in your system.
Make ensure the hashcash package were installed using the commands given below,
$ sudo dpkg-query -l | grep hashcash *
You will get with hashcash package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | |
| Package | hashcash |
| Version | 1.21-1.1 |
| Description | postage payment scheme for email based on hash calculations |
| Sub Section |
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