WhatsApp rival Telegram has raised a total of $1.7bn (£1.2bn) through the world's biggest initial coin offering (ICO).
After raising an initial $850m in February through the token pre-sale, the encrypted messaging app raised another $850m from 94 investors in March, according to a filing with the US Securities and Exchange Commission.
Telegram said it may pursue one or more subsequent offerings.
Investors have pledged cash for the Russia-founded tech firm's gram token, and Telegram will put the proceeds towards its blockchain payments platform, Telegram Open Network.
ICOs are still considered to be risky ventures, with a number of regulators, including the UK's Financial Conduct Authority, warning investors to be wary of fraudsters. A growing number of social media firms are also cracking down on ICO advertisements.
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