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21 Adds List Feature to Bitcoin 'LinkedIn' Alternative

21 Inc, one of the best funded bitcoin startups, has released an update to its bitcoin-powered email app.

Updated Sep 11, 2021, 1:08 p.m. Published Mar 8, 2017, 8:44 a.m.
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Bitcoin startup 21 Inc has released an update to its previously announced paid messaging platform, soft launched earlier this year.

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In a Medium post today, the San Francisco-based startup debuted '21 Lists', a new function that enables 21 users to offer bitcoin as a way to incentivize VCs, CEOs and angel investors to answer email messages from unknown senders. In advertisements, the startup has sought to position the offering as "better than LinkedIn".

"Each list is a mini-directory organized by profession or skill," the post explained.

It went on to detail six lists that group participants into categories including 'VCs', 'CEOs', 'angels', 'founders' and 'blockchain'.

The update is the latest that finds 21 moving away from a former bitcoin mining hardware product play and toward software solutions it believes will spur consumer use of the digital currency.

In statements to CoinDesk earlier this month, 21 CEO Balaji Srinivasan pushed back on claims that the new product marks a pivot, indicating that its main goal is to increase bitcoin adoption.

He went on to compare the bitcoin network favorably to other forms of payment.

"[Bitcoin] allows instant receipt of funds without linking a bank account, it works across borders and it can scale up and down to very small and large payments alike," he said.

Email visualization via Shutterstock

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KuCoin captured a record share of centralised exchange volume in 2025, with more than $1.25tn traded as its volumes grew faster than the wider crypto market.

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  • KuCoin recorded over $1.25 trillion in total trading volume in 2025, equivalent to an average of roughly $114 billion per month, marking its strongest year on record.
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Bitcoin stuck near $88,000 as gold's and silver's record-breaking rallies show exhaustion signs

Bitcoin (BTC) price on Jan. 26 (CoinDesk)

"Gold and silver casually adding an entire bitcoin market cap in a single day," wrote one crypto analyst.

What to know:

  • Bitcoin is off its worst levels of the weekend, but still near the year's low at $87,700.
  • Facing the same news cycle as crypto, precious metals continued to surge higher, but a quick retreat from their highs on Monday suggested a bit of exhaustion was setting in.
  • Analysts remain dour on the outlook for crypto prices given the looming government shutdown as well as delays in passage of the Clarity Act.