Beyond the signature: Ethereum’s next safety question
New research asks whether a transaction should have to prove it delivered the outcome its signer intended.
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Can an API be paid without building a profile of its user?
zkAPI separates metered API payments from the billing identity behind individual requests.
The less glamorous Bitcoin update that matters to node operators
Bitcoin Core 29.4’s release notes describe a fix for excessive chainstate disk activity.
Where does the change go in a Bitcoin payment?
Why a payment can create an output for the recipient and another for the sender.
Your wallet and your node do different jobs
Key management and transaction validation are separate responsibilities.
A contract address is the beginning of due diligence
The label on a website is not a description of everything a contract can do.
Five questions to ask about a rollup
A network’s low fee is only one part of its operating model.
Why Solana applications use so many accounts
An address may represent data, an executable program or a token holding—not a person.
The small payment memo with a big accounting job
Reconciliation is part of a payment product, not an optional afterthought.
Your RPC provider is a window, not the whole network
Why applications need explicit freshness and failure handling for chain data.
Liquidity has a location on the price curve
Why the headline value in a pool can conceal where trading depth actually sits.
A price feed needs a clock
An accurate observation can become unsuitable when conditions move.
Read a DeFi position as a chain of dependencies
One balance can depend on more than one protocol staying functional.
What a candle tells you—and what it leaves out
A chart compresses trades; it does not explain every reason behind them.
Why two crypto price websites can disagree
Different venues, timestamps and methodologies can create different snapshots.
An unlock calendar is a schedule, not a forecast
How to read release events without assuming every unlocked token will be sold.
An AI benchmark starts with the dataset
The score is only meaningful when the evaluation conditions are clear.
A hash and a signature answer different questions
Integrity, provenance and factual truth are three separate checks.
A green status page is not an SLA measurement
A service-wide indicator and your own request history describe different things.
PactVerity: making AI-service claims easier to inspect
Inside the receipt-verification project and the separate role of its PVTY token.