Twitter CEO Jack Dorsey has Bitcoin on the brain. Coinweek CIBC celebrates Vaisakhi with unique commemorative gold and silver coins. CIBC celebrates Vaisakhi with unique commemorative gold and Apr 3, 2018 CIBC is the only bank in Canada to offer Vaisakhi coins, which are global money. Commemorative Gold & Silver Coins. TORONTO - Just in time for. Vaisakhi, CIBC is exclu- sively offering Canadians limited edition unique fes-.