dunno if gold-backed, but brics are indeed working on a token, as well as mercosur.
The BRICS gold currency hoax
Fix The Money podcast w/ nostr:npub1st4elxz4dphx2qxpuaklvs855zetnkglu8dvszdxamgqn5q3pk5svflv5p
Why is there so much fake news about Brazil, Russia, China, and South Africa (BRICS) adopting a gold-backed money? A conversation in Vienna.
https://www.fixthemoney.net/p/the-brics-gold-currency-hoax#details
Discussion
India now says no way
https://www.ibtimes.com/de-dollarization-india-shuts-down-talk-brics-currency-3703913
via aiib then ¯\_(ツ)_/¯