CoinPressroomhttps://coinpressroom.com/Crypto news, research briefings and education.enBeyond the signature: Ethereum’s next safety questionNew research asks whether a transaction should have to prove it delivered the outcome its signer intended.https://coinpressroom.com/stories/ethereum-transaction-assertions/https://coinpressroom.com/stories/ethereum-transaction-assertions/Wed, 07 Oct 2026 00:00:00 GMTEthereumCan an API be paid without building a profile of its user?zkAPI separates metered API payments from the billing identity behind individual requests.https://coinpressroom.com/stories/zkapi-private-usage-credits/https://coinpressroom.com/stories/zkapi-private-usage-credits/Wed, 07 Oct 2026 00:00:00 GMTTechnologyThe less glamorous Bitcoin update that matters to node operatorsBitcoin Core 29.4’s release notes describe a fix for excessive chainstate disk activity.https://coinpressroom.com/stories/bitcoin-core-maintenance-29-4/https://coinpressroom.com/stories/bitcoin-core-maintenance-29-4/Wed, 07 Oct 2026 00:00:00 GMTBitcoinWhere does the change go in a Bitcoin payment?Why a payment can create an output for the recipient and another for the sender.https://coinpressroom.com/stories/bitcoin-change-output/https://coinpressroom.com/stories/bitcoin-change-output/Wed, 07 Oct 2026 00:00:00 GMTBitcoinYour wallet and your node do different jobsKey management and transaction validation are separate responsibilities.https://coinpressroom.com/stories/bitcoin-node-wallet/https://coinpressroom.com/stories/bitcoin-node-wallet/Wed, 07 Oct 2026 00:00:00 GMTBitcoinA contract address is the beginning of due diligenceThe label on a website is not a description of everything a contract can do.https://coinpressroom.com/stories/ethereum-contract-address/https://coinpressroom.com/stories/ethereum-contract-address/Wed, 07 Oct 2026 00:00:00 GMTEthereumFive questions to ask about a rollupA network’s low fee is only one part of its operating model.https://coinpressroom.com/stories/ethereum-rollup-checklist/https://coinpressroom.com/stories/ethereum-rollup-checklist/Wed, 07 Oct 2026 00:00:00 GMTEthereumWhy Solana applications use so many accountsAn address may represent data, an executable program or a token holding—not a person.https://coinpressroom.com/stories/solana-account-data/https://coinpressroom.com/stories/solana-account-data/Wed, 07 Oct 2026 00:00:00 GMTSolanaThe small payment memo with a big accounting jobReconciliation is part of a payment product, not an optional afterthought.https://coinpressroom.com/stories/solana-payment-memo/https://coinpressroom.com/stories/solana-payment-memo/Wed, 07 Oct 2026 00:00:00 GMTSolanaYour RPC provider is a window, not the whole networkWhy applications need explicit freshness and failure handling for chain data.https://coinpressroom.com/stories/solana-rpc-endpoint/https://coinpressroom.com/stories/solana-rpc-endpoint/Wed, 07 Oct 2026 00:00:00 GMTSolanaLiquidity has a location on the price curveWhy the headline value in a pool can conceal where trading depth actually sits.https://coinpressroom.com/stories/concentrated-liquidity-range/https://coinpressroom.com/stories/concentrated-liquidity-range/Wed, 07 Oct 2026 00:00:00 GMTDeFiA price feed needs a clockAn accurate observation can become unsuitable when conditions move.https://coinpressroom.com/stories/oracle-freshness/https://coinpressroom.com/stories/oracle-freshness/Wed, 07 Oct 2026 00:00:00 GMTDeFiRead a DeFi position as a chain of dependenciesOne balance can depend on more than one protocol staying functional.https://coinpressroom.com/stories/defi-composability-map/https://coinpressroom.com/stories/defi-composability-map/Wed, 07 Oct 2026 00:00:00 GMTDeFiWhat a candle tells you—and what it leaves outA chart compresses trades; it does not explain every reason behind them.https://coinpressroom.com/stories/reading-crypto-candles/https://coinpressroom.com/stories/reading-crypto-candles/Wed, 07 Oct 2026 00:00:00 GMTMarketsWhy two crypto price websites can disagreeDifferent venues, timestamps and methodologies can create different snapshots.https://coinpressroom.com/stories/crypto-price-sources/https://coinpressroom.com/stories/crypto-price-sources/Wed, 07 Oct 2026 00:00:00 GMTMarketsAn unlock calendar is a schedule, not a forecastHow to read release events without assuming every unlocked token will be sold.https://coinpressroom.com/stories/token-unlock-calendar/https://coinpressroom.com/stories/token-unlock-calendar/Wed, 07 Oct 2026 00:00:00 GMTMarketsAn AI benchmark starts with the datasetThe score is only meaningful when the evaluation conditions are clear.https://coinpressroom.com/stories/ai-evaluation-dataset/https://coinpressroom.com/stories/ai-evaluation-dataset/Wed, 07 Oct 2026 00:00:00 GMTTechnologyA hash and a signature answer different questionsIntegrity, provenance and factual truth are three separate checks.https://coinpressroom.com/stories/hash-versus-signature/https://coinpressroom.com/stories/hash-versus-signature/Wed, 07 Oct 2026 00:00:00 GMTTechnologyA green status page is not an SLA measurementA service-wide indicator and your own request history describe different things.https://coinpressroom.com/stories/api-status-page/https://coinpressroom.com/stories/api-status-page/Wed, 07 Oct 2026 00:00:00 GMTTechnologyPactVerity: making AI-service claims easier to inspectInside the receipt-verification project and the separate role of its PVTY token.https://coinpressroom.com/stories/pactverity-pvty-project-brief/https://coinpressroom.com/stories/pactverity-pvty-project-brief/Wed, 07 Oct 2026 00:00:00 GMTSolana