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Everyone's talking about AI agents like they're some far-off, technical thing.…

Tool access is production access. Learn how to secure AI agents with deterministic policies, schemas, and human approval gates.

“The company that I co-founded and wanted to build and the company Twenty One was becoming were no longer the same.”

Jack Mallers is back on the show for his first interview since stepping down as CEO of Twenty One Capital.

Jack explains why he walked away…

Tool access is production access. Learn how to secure AI agents with deterministic policies, schemas, and human approval gates.

Having more bitcoin today than yesterday,

and more this week than last week,

and more this month than last month,

and more this year than last year,

and more this halving than last halving is the complete unlock of the matrix.

Enquanto isso, em uma democracia relativa perto de você:

Slightly over a year ago, an idea for a new off-chain payment protocol for bitcoin was proposed: Ark. Originally conceived as a solution for onboarding Lightning users, Ark’s design has evolved sig...

We invited some notable bitcoiners and early contributors to the Ark protocol to join us on this adventure. Among the group were Stephan Livera, Marty Bent, John Carvallo, Vivek4real, Jonas Nick, Robin Linus, and Super Testnet.

Package relay enables multiple transactions to be packaged, broadcast, and relayed together, and is a huge improvement for layer twos like Lightning and Ark.

We’ve made arkoor the standard for payments on our Ark implementation. Instead of offering users the option of making either out-of-round (arkoor) or in-round payments, all payments will be arkoor...

Ark is live on signet, and we're inviting developers to test, explore, and break things. We've set up a faucet and a test store to get you going.

CEO Steven Roose gave a comprehensive update on the state of the Ark protocol on the Stephan Livera Podcast, so we're sharing the transcript here for those that prefer those! Stephan: Hi everyone,...

Last weekend at OP_NEXT, we unveiled Erk—a novel variation of the Ark protocol that completely removes the need for user interactivity in rounds. This addresses one of Ark's key limitations: the re...

We simulated bitcoin users sending Lightning payments to work out Ark's liquidity requirements, and compared an Ark server's capital needs to an LSP's.

As we continue the study of Ark’s liquidity requirements, we must come to an understanding on how to price liquidity. Many user operations on Ark require an Ark server to lock up bitcoin (e.g., ref...

As we continue developing the Ark protocol, understanding liquidity costs has become essential. Our previous research into bitcoin yield products revealed that Lightning liquidity leasing offers so...

We're funding a year-long grant for Beulah Evanjalin to implement nested MuSig in libsecp256k1-zkp. This is a joint effort between Beulah, Second, and Vora, with Jesse Posner providing weekly mento...

We've redesigned how Bark wallets receive updates from the Ark server. The new unified mailbox gives developers a single, efficient feed for all wallet notifications—Lightning payments, Ark payment...

hArk (hash-lock Ark), first described in a Delving Bitcoin post, and shipped in v0.1.0-beta.6 is an update to our implementation of the Ark protocol that fundamentally changes how rounds are constr...

Ark users are always in control of their bitcoin. They can perform an emergency exit to get back on-chain whenever they need to. But Bark is a client-server system, and users depend on the server t...