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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 Hits Record Market Share as 2025 Volumes Outpace Crypto Market

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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.

What to know:

  • 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.
  • This performance translated into an all-time high share of centralised exchange volume, as KuCoin’s activity expanded faster than aggregate CEX volumes, which slowed during periods of lower market volatility.
  • Spot and derivatives volumes were evenly split, each exceeding $500 billion for the year, signalling broad-based usage rather than reliance on a single product line.
  • Altcoins accounted for the majority of trading activity, reinforcing KuCoin’s role as a primary liquidity venue beyond BTC and ETH at a time when majors saw more muted turnover.
  • Even as overall crypto volumes softened mid-year, KuCoin maintained elevated baseline activity, indicating structurally higher user engagement rather than short-lived volume spikes.

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Coreweave stock gains 9% on fresh $2 billion Nvidia investment

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Already an investor in CoreWeave, Nvidia last September had agreed to purchase $6.3 billion of computing services from the AI infrastructure provider.

What to know:

  • CoreWeave shares jumped about 9% in pre-market trading after Nvidia invested another $2 billion in the AI-focused cloud company.
  • The new funding is intended to help CoreWeave expand to more than 5 gigawatts of AI-dedicated data centers by the end of the decade.
  • The deal deepens a yearslong collaboration in which Nvidia and CoreWeave will align on hardware, software and data center strategy, and test CoreWeave’s Mission Control resource-scheduling platform for potential integration into Nvidia’s ecosystem.