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Rhian Lewis is a consultant software engineer and former digital journalist at The Times who is a regular international conference speaker and panellist on all things blockchain and cryptocurrency. She launched the altcoin portfolio tracker countmycrypto.com, co-founded the London Women in Bitcoin meetup group in 2014 and has acted as an advisor and strategist on various blockchain projects for the last seven years. She blogs on cryptocurrency and is the author of The Cryptocurrency Revolution (Kogan Page). She is based near Plymouth, UK.