2011, Peter W. Hauer, The Big Picture: The Past, the Present, & Your Children's Future, Author House, →ISBN, page 165:
With a digital gold account, the gold is held at the bank, and the transfers of gold are completed simply by making entries in the bank's computerized record system, hence the term “digital gold.”
2017 May 15, Simon Usborne, quoting Simon Moore, “Digital gold: why hackers love Bitcoin”, in The Guardian[1]:
Moores says part of the currency’s power is in its use as a speculative instrument for trading – a digital gold – but also as a way for companies to make payments more cheaply and perform other functions.
2020, Jeff John Roberts, Kings of Crypto[2], Harvard Business Press, →ISBN:
If bitcoin was digital gold, Ethereum was digital silver.
digital gold currency on Wikipedia.Wikipedia 