Now that bitcoin has taken center stage in the United States, Gemini Co-Founders Cameron and Tyler Winklevoss are doing their part to hasten mainstream adoption. Tyler tweeted his latest challenge, the reward for which is 1 BTC. At the current rate, that amounts to roughly $9,700. By the time the contest is over, however, the bitcoin price could be worth much more than that.

All you have to do is post an image of “Bitcoin Billionaires” by Ben Mezrich and the “coolest pic wins 1 bitcoin (BTC),” according to the tweet.

NEW CHALLENGE: Take a picture with your copy of #BitcoinBillionaires in a cool place (could be anywhere). Reply to this tweet with your pic and hashtag #BitcoinBillionaires, coolest pic wins 1 bitcoin (BTC). — Tyler Winklevoss (@tylerwinklevoss) July 16, 2019

The submissions are already pouring in.

I finished #BitcoinBillionaires on holiday in Portugal and loved it. Now my wife’s enjoying it in London 🇬🇧 pic.twitter.com/diqVgBt7tO — James Burgess (@jamesfdburgess) July 16, 2019

https://twitter.com/waitforthesetup/status/1151236115963109376

Winklevoss Crypto Bus Winner Saw 50 Percent Return

It’s not the first time that the Winklevoss twins have given away bitcoin. In May, they launched a separate campaign, the focus of which was the Gemini Crypto Bus. At the time, bitcoin was trading at about $5,700. But by the time the winner was announced, the price appreciated to $8,700 for a cool 50 percent return for the winner.

Unlike Tron’s botched Tesla giveaway, the Gemini competition went off without a hitch.

Thanks @Gemini @tylerwinklevoss @winklevoss for the #CryptoBus challenge and opportunity to participate. I am very thankful to be chosen as the winner. $BTC — DeFn (@atescch) May 28, 2019

The Bitcoin Billionaires contest runs through July 24 at 4 p.m. ET, which is a lifetime in Crypto Land and plenty of time for the bitcoin price to rocket higher. In case you are looking for an idea of what resonates with them –

Congratulations to @MrnobaT for winning the 'Spot the @Gemini #CryptoBus' competition! When we started this game on May 4th, the price of 1 bitcoin was ~5,700, today it is ~8,700. That's a cool +50% return. It pays to not only win, but also HODL! 👍🚀 https://t.co/xGdhUZ37Jl — Tyler Winklevoss (@tylerwinklevoss) May 29, 2019

Cameron and Tyler Winklevoss have been educators in the crypto space, taking opportunities to engage with the public and teach them about Gemini, bitcoin, and cryptocurrency. They are taking that to a new level by offering to help swimsuit model Christine Teigen to understand bitcoin.

Ironically, Cameron and Tyler Winklevoss appear to be capitalizing on the spotlight that has been placed on bitcoin, thanks to Facebook’s Libra.