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Proof of work on Backpacks

A backpack for any occasion. Affords enough space for school books and files, and is the trusty companion you need on holiday or in times of leisure.

Main compartment with double zipper and zipped front pocket
Handy headphone opening for safe transport of an MP3 player or iPod while listening to music
Holding capacity: 15.7 litres)
Fabrics: 100% polyester

Backpack

Product size guide

A - Length in in
B - Width in in

Size	A (in)	B (in)
One Size	14.96	11.02

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Created by Charligrafic

Proof of work

Proof of work

Charligrafic

Created by Charligrafic

For all blockchain friends who are interested in the topic and would like to express it.

Tags: block Chain, Bitcoin, Proof of work

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