Web3 Tech Brief By HackerNoon
Learn the latest Web3 updates in the tech world.
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Designing a Blockchain-Based Universal Healthcare Identity System With Hyperledger and GCP
<p>This story was originally published on HackerNoon at: https://hackernoon.com/designing-a-blockchain-based-universal-healthcare-identity-system-with-hyperledger-and-gcp. <br> A technical blueprint for building a blockchain-based Universal Healthcare ID system using Hyperledger Fabric, Google Cloud, and FHIR interoperability standards <br> Check more stories related to web3 at: https://hackernoon.com/c/web3. You can also check exclusive content about #healthcare-blockchain, #healthcare-tech, #google-cloud-platform, #universal-healthcare-id, #hyperledger-fabric, #healthcare-identity-management, #healthcare-cloud-architecture, #healthcare-data-fragmentation, and more. <br> <br> This story was written by: @dshivani. Learn more about this writer by checking @dshivani's about page, and for more stories, please visit hackernoon.com. <br> <br> This article proposes a production-grade Universal Healthcare ID...
Bitcoin Miners are Not Disappearing. They are Being Repriced as AI Infrastructure
<p>This story was originally published on HackerNoon at: https://hackernoon.com/bitcoin-miners-are-not-disappearing-they-are-being-repriced-as-ai-infrastructure. <br> Bitcoin mining difficulty fell 7.76% at block 941,472 on March 21, 2026, marking the second-largest negative adjustment of the year. <br> Check more stories related to web3 at: https://hackernoon.com/c/web3. You can also check exclusive content about #web3, #bitcoin-mining, #btc, #ai, #emcd, #pool-mining, #bitcoin-mining-difficulty, #bitcoin-trading, and more. <br> <br> This story was written by: @MichaelJerlis. Learn more about this writer by checking @MichaelJerlis's about page, and for more stories, please visit hackernoon.com. <br> <br> Bitcoin mining difficulty fell 7.76% at block 941,472 on March 21, 2026, marking the second-largest negative...
Critical Minerals, Africa, & the Case for Tokenization as a Serious Financing Mechanism
<p>This story was originally published on HackerNoon at: https://hackernoon.com/critical-minerals-africa-and-the-case-for-tokenization-as-a-serious-financing-mechanism. <br> Africa holds 30% of the world's critical minerals but can't access the capital being built around them. Here's why tokenization may change that. <br> Check more stories related to web3 at: https://hackernoon.com/c/web3. You can also check exclusive content about #blockchain-in-africa, #tokenization, #critical-minerals, #financing, #tokenization-of-rwas, #u.s-defense-innovation, #investing-and-africa, #hackernoon-top-story, and more. <br> <br> This story was written by: @audreynesbitt. Learn more about this writer by checking @audreynesbitt's about page, and for more stories, please visit hackernoon.com. <br> <br> Western governments have built a...
Smart Contract Security: A Taxonomy of Vulnerabilities, Attacks, and Defenses
<p>This story was originally published on HackerNoon at: https://hackernoon.com/smart-contract-security-a-taxonomy-of-vulnerabilities-attacks-and-defenses. <br> A practical taxonomy of smart contract vulnerabilities, covering reentrancy, integer overflow, access control, MEV, invariant violations, and key defense strate <br> Check more stories related to web3 at: https://hackernoon.com/c/web3. You can also check exclusive content about #smart-contract-security, #smart-contracts, #ethereum, #solidity-vulnerabilities, #reentrancy-attack, #flash-loan-exploits, #smart-contract-auditing, #hackernoon-top-story, and more. <br> <br> This story was written by: @kamronbek. Learn more about this writer by checking @kamronbek's about page, and for more stories, please visit hackernoon.com. <br> <br> Smart contracts are immutable once deployed. A single...
WeFi Visa Deal Shows Stablecoins Still Need a Spending Layer
<p>This story was originally published on HackerNoon at: https://hackernoon.com/wefi-visa-deal-shows-stablecoins-still-need-a-spending-layer. <br> The volume is there. The checkout isn't. WeFi's stablecoin Visa card targets the gap between holding USDC and actually buying something with it. <br> Check more stories related to web3 at: https://hackernoon.com/c/web3. You can also check exclusive content about #stablecoins, #crypto-payments, #visa-crypto-card, #wefi, #usdc-usdt, #defi-spending, #fintech-payments, #crypto-adoption, and more. <br> <br> This story was written by: @gabrielmanga. Learn more about this writer by checking @gabrielmanga's about page, and for more stories, please visit hackernoon.com. <br> <br> The volume is there. The...
Why the SEC Delayed Prediction Market ETFs
<p>This story was originally published on HackerNoon at: https://hackernoon.com/why-the-sec-delayed-prediction-market-etfs. <br> Prediction market ETFs were supposed to launch. The SEC paused them. Here's why settlement is broken, who has jurisdiction, and who ends up unprotected. <br> Check more stories related to web3 at: https://hackernoon.com/c/web3. You can also check exclusive content about #prediction-market-etfs, #sec-etf-review-delay, #cftc-regulation, #binary-outcome-markets, #etf-settlement-risk, #prediction-market-regulation, #derivatives-etfs, #event-contract-etfs, and more. <br> <br> This story was written by: @vitaliiyatskiv. Learn more about this writer by checking @vitaliiyatskiv's about page, and for more stories, please visit hackernoon.com. <br> <br> Prediction market ETFs cleared...
Europe Is Tightening Crypto Rules While the US Fights Over Them
<p>This story was originally published on HackerNoon at: https://hackernoon.com/europe-is-tightening-crypto-rules-while-the-us-fights-over-them. <br> Europe and the US are taking sharply different approaches to stablecoin regulation as digital assets become embedded in global finance. <br> Check more stories related to web3 at: https://hackernoon.com/c/web3. You can also check exclusive content about #crypto-regulation, #mica, #eu-crypto-regulation, #stablecoin-adoption, #dollar-backed-stablecoins, #institutional-crypto-adoption, #cross-border-payments, #hackernoon-top-story, and more. <br> <br> This story was written by: @thetechpanda. Learn more about this writer by checking @thetechpanda's about page, and for more stories, please visit hackernoon.com. <br> <br> This article examines the widening regulatory divide shaping...
Is BIP-110 Bitcoin’s Defense Against Spam or the Start of a Chain Split?
<p>This story was originally published on HackerNoon at: https://hackernoon.com/is-bip-110-bitcoins-defense-against-spam-or-the-start-of-a-chain-split. <br> An opinion-driven analysis of BIP-110, Bitcoin spam mitigation, and the growing ideological conflict around arbitrary data on Bitcoin. <br> Check more stories related to web3 at: https://hackernoon.com/c/web3. You can also check exclusive content about #bitcoin, #bip-110, #spam-prevention, #spam-filter, #bitcoin-ordinals, #bitcoin-knots, #bitcoin-core, #hackernoon-top-story, and more. <br> <br> This story was written by: @eduardoprospero. Learn more about this writer by checking @eduardoprospero's about page, and for more stories, please visit hackernoon.com. <br> <br> This article examines the growing controversy surrounding BIP-110, a...
GoMining Launches GoBTC Pay to Bring Native Instant Payments to Bitcoin
<p>This story was originally published on HackerNoon at: https://hackernoon.com/gomining-launches-gobtc-pay-to-bring-native-instant-payments-to-bitcoin. <br> This makes it practical to use Bitcoin at the point of sale for everyday purchases. Payments are free for end-users and merchants pay a small acquiring fee that <br> Check more stories related to web3 at: https://hackernoon.com/c/web3. You can also check exclusive content about #web3, #gomining, #chainwire, #press-release, #crypto-exchange, #blockchain-development, #bitcoin-mining, #good-company, and more. <br> <br> This story was written by: @chainwire. Learn more about this writer by checking @chainwire's about page, and for more stories, please visit hackernoon.com. </p>
Zoomex Launches the World’s First Zero-Cost Trading Competition: Let Skill Be Your Only Asset
<p>This story was originally published on HackerNoon at: https://hackernoon.com/zoomex-launches-the-worlds-first-zero-cost-trading-competition-let-skill-be-your-only-asset. <br> This competition not only provides participants with a professional trading experience at zero cost and zero risk but also embodies <br> Check more stories related to web3 at: https://hackernoon.com/c/web3. You can also check exclusive content about #web3, #zoomex, #blockmanwire, #press-release, #crypto-exchange, #blockchain-development, #meet-zoomex, #good-company, and more. <br> <br> This story was written by: @blockman. Learn more about this writer by checking @blockman's about page, and for more stories, please visit hackernoon.com. </p>
