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DeFi 101

This Week in Crypto (September 7–14): Blockstream Refuses a $47M Ransom, the CLARITY Act Gets a 630-Page Rewrite, and Bitcoin ETFs Sell While Ether Squeezes Past $2,600

This Week in Crypto (September 7–14): Blockstream Refuses a $47M Ransom, the CLARITY Act Gets a 630-Page Rewrite, and Bitcoin ETFs Sell While Ether Squeezes Past $2,600

The defining story this week in crypto was a refusal. The attackers who drained Blockstream's Liquid sidechain returned 85% of the bitcoin, asked to be paid for the rest, and were told no. Elsewhere: Senate Republicans rewrote the CLARITY Act five days before its vote, a hot core

AI agents with a wallet: what they can spend, and what stops them

AI agents with a wallet: what they can spend, and what stops them

An AI agent lost $175,000 to a Morse code message, with no key stolen and no contract exploited. What actually limits an agent.

What is blind signing, and why it keeps draining wallets

What is blind signing, and why it keeps draining wallets

Two teams with multisigs and hardware wallets lost $1.55B to signatures they could not read. What blind signing is, and what to check.

This Week in Crypto (August 31–September 7): Liquid Loses 95% of Its Bitcoin to a Cache Bug, Twenty-One Banks Launch a Dollar, and the House Leaves Two Days After Crypto's Big Vote

This Week in Crypto (August 31–September 7): Liquid Loses 95% of Its Bitcoin to a Cache Bug, Twenty-One Banks Launch a Dollar, and the House Leaves Two Days After Crypto's Big Vote

The largest crypto theft this week involved no stolen key. Blockstream's Liquid sidechain lost about 95% of its bitcoin on Saturday because a caching shortcut let someone mint coins that were never there, and the federation signed the withdrawal correctly. Elsewhere: twenty-one of the world's

Zero-knowledge proofs, explained without the cryptography

Zero-knowledge proofs, explained without the cryptography

Google Wallet proves your age without your birthdate. What a zero-knowledge proof claims, where it runs, and why ZK does not mean private.

What is a bonding curve? The pricing math behind token launchpads

What is a bonding curve? The pricing math behind token launchpads

The price on a launchpad is a formula you can read: what a bonding curve is, what graduation costs, and why 98.6% of tokens never make it.

This Week in Crypto (August 17–24): The SEC Publishes Regulation Crypto Assets, $4B of Shorts Get Liquidated, and a DeFi Vault Gets Voted Out of Its Own Money

This Week in Crypto (August 17–24): The SEC Publishes Regulation Crypto Assets, $4B of Shorts Get Liquidated, and a DeFi Vault Gets Voted Out of Its Own Money

If last week in crypto was about things that didn't happen, this week was about all of them happening at once. The SEC meeting canceled on August 13 returned on August 18 as a published proposal, with no meeting at all. The Treasury doubled its bond buybacks, and