Biography
There are at least three artists under the name Heavy Chains:
1) Jersey Shore Hardcore
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Demo at http://heavychains.bandcamp.com/
2) Canadian hardcore band from Vancouver with members from Nü Sensae, Mutators and White Lung
3) A thrash metal band from Heredia, Costa Rica. Their music is found on Bandcamp.
Biography text from Last.fm, available under CC BY-SA.