Social media platform Twitter (NYSE:TWTR) appears to be testing the ability for content creators to send and receive tips using bitcoin (BTC-USD) on the Lightening Network, The Block reports, citing sources with knowledge on the matter. Bitcoin (BTC-USD) tips are limited to the Twitter (TWTR) beta at this time and is not yet available for all beta users, according to MacRumors. Shares of Twitter (TWTR) rise 0.3% in premarket trading; Bitcoin ((BTC-USD -0.8%)) continues to trade sideways since the start of the week. Mobile developer Alessandro Paluzzi recently leaked an image of what the upgrade will look like in a tweet. The tipping function will support custodial and non-custodial wallets; Twitter users will need a Strike account to receive tips. In May, Twitter introduced a way to send payments to other accounts, dubbed Tip Jar, using payment servicers like PayPal (NASDAQ:PYPL) and Venmo. Twitter CEO Jack Dorsey's Square (NYSE:SQ) also has its