Bookmarks (2012)

This section details a multi-layer blockchain system where a Layer-2 rollup manages CBDC integration and routing, while Layer-3s run competing AMMs. The architecture uses EVM, ensures compliance with KYC and privacy laws, and replaces bridges with proof-of-storage for enhanced security and cost-efficiency.

This study shows that a multi-AMM setup on Layer-2 blockchains reduces total costs of CBDC swaps—fees and price impact—compared to Project Mariana’s single-AMM model.

This section explains how Layer-2 rollups reduce costs and improve scalability for blockchain networks, and examines Project Mariana’s L1 AMM model for CBDC exchange.

This paper proposes a multi-layer blockchain system using Layer-2 and competing Layer-3 AMMs to enable cheaper, scalable cross-border CBDC trading, outperforming Project Mariana in simulations.

Avi Schiffmann is the Founder/CEO of Friend.com, the new AI necklace companion. Previously Avi dropped out of Harvard and founded InternetActivism.org, where he notably built a COVID tracker that over 600M people visited. Avi was kind enough to spend a few minutes sharing his rare insights with the HackerNoon community. 

This prompt guides you to explore blockchain nodes—what they are, how they work, and why they matter. Cover different node types, transaction validation, consensus models, and how node providers like GetBlock reduce the complexity for developers. Ideal for Web3 newcomers and contest participants alike.

BingX is celebrating its 7th anniversary with a user story campaign. The campaign invites users to share their unique journeys and unforgettable moments with BingX. BingX is offering a 10,000 USDT Early Bird Prize Pool for the first 1,000 participants.

This week, we are proud to present Aptible, a Platform as a Service (PaaS) that gives startups everything they need to launch and scale apps and databases that are secure, reliable, and compliant.

Learn how color grading works, what color targets are, and build your own palette-based grading tool in React — from scratch and with purpose.

A new way to learn SQL: solve crimes using real SQL queries. Build database logic fast with interactive storytelling and gamified practice.

A fictional CEO learns the real-world importance of blockchain nodes—decentralized computers that validate transactions and prevent financial fraud through consensus.

Learn about the development of a multi-stage Langchain agent for MySQL, including the challenges faced and lessons learned.

CNN's John Sutter shares four stories of people he's done business with who were deeply unwell psychologically. Sutter: "I ask myself whether it's a degree of insanity within myself that has attracted these people and circumstances"

HIKMICRO showcased its game-changing "digital system" concept at the IWA Outdoor Classics 2025 in Nuremberg. The company, known for its cutting-edge digital optics, has introduced an integrated technological ecosystem that enhances every aspect of the hunting experience.

In this blog, we will outline the step-by-step journey to establish a successful cybersecurity career—from the fundamentals to becoming an expert.

Learn how to perform a basic vulnerability scan using free tools like Nmap & Nikto. A simple step-by-step guide to find and fix security flaws.

iAsk AI just passed half a billion searches. That’s not a typo. 500,000,000+ questions asked, problems solved, papers summarized, and headaches avoided.

Tonga’s digital government is broken. From Gmail addresses to insecure sites, here’s why basic tech standards could transform public services for everyone.

Discover how blockchain can help decentralize and democratize AI through open data, decentralized storage, and community-driven governance.

Go 1.24 comes with many improvements over Go 1.23. The language now fully supports type aliases. The standard library now includes mechanisms to facilitate FIPS 140-3 compliance.

Explore how DAI maintains its $1 peg through smart contracts, market belief, and simulations—plus key risks affecting stablecoins in volatile DeFi markets.

Explore how DAI maintains its $1 peg through smart contracts, market belief, and simulations—plus key risks affecting stablecoins in volatile DeFi markets.

Explore how DAI maintains its $1 peg through smart contracts, market belief, and simulations—plus key risks affecting stablecoins in volatile DeFi markets.

Explore how DAI maintains its $1 peg through smart contracts, market belief, and simulations—plus key risks affecting stablecoins in volatile DeFi markets.

Explore how DAI maintains its $1 peg through smart contracts, market belief, and simulations—plus key risks affecting stablecoins in volatile DeFi markets.

This article explores how modern tech companies systematically filter out high-agency, systems-level thinkers by design. Through tools like LeetCode, Go, and React, the industry scales control and predictability—at the cost of judgment, abstraction, and architectural insight. If you're the kind of mind that sees the whole, you're not a fit by accident—you’re filtered out on purpose.

Tired of digging through long PDFs? This guide walks you through building a basic "Ask My Book" bot using a RAG pipeline — where your questions are answered based on actual book content, not guesswork. You’ll learn how to chunk your book, embed it with Cohere, store it in Pinecone, and generate accurate responses with Gemini. Beginner-friendly and powerful!

When I started out as a BA, we were taught to treat documentation like gospel. But in an Agile world, usefulness doesn’t come from a polished doc. What they needed was me, in the room, talking with them.

While Vaadin offers built-in themes like Lumo, customizing themes is often necessary to align the application’s appearance with branding requirements.

Theming is a fundamental aspect of any Vaadin application, allowing developers to define the look and feel of their UI.

Business development can be used as a blueprint for market validation. Instead of asking, “How can we sell here?’ — we asked, ‘What can we learn here?' The KPIs weren’t revenue. They were qualitative conversations with ICPs.

In fast-scaling tech companies, misalignment between product, sales, and marketing isn’t just inconvenient — it’s expensive. Teams operate on different metrics, tools, and timelines. Disconnected strategies, delayed feedback loops, and missed revenue opportunities.

Sales enablement was synonymous with static PDFs, battlecards, and quarterly workshops. From hyper-personalized coaching to real-time intelligence, artificial intelligence is moving sales enablement from the realm of support to a true revenue-driving function.

What happened to Bitcoin donations sent to Tonga after the January 2022 Hunga Tonga–Hunga Haʻapai volcanic eruption and tsunami?

Arrange your code so the main logic flows along the left margin, handling edge cases early with guard clauses.

How are you, hacker? 🪐Want to know what's trending right now?: The Techbeat by HackerNoon has got you covered with fresh content from our trending stories of the day! Set email preference here. Claude Desktop + MCP Quietly Transformed my Product Thinking By @asitsahoo [ 3 Min read ] Discover how Claude Desktop with ...

Hiro Yamada is the co-founder and CEO of First Mate Technologies. The company combines the technical excellence of Silicon Valley with the cost efficiency of Asia.

Master vector search & management for production AI. Covers ANN algorithms, quantization, filtering, access patterns & performance tradeoffs for scaling.

Nearly three-quarter of developers have been in my shoes at one point in their careers. Burnout doesn’t just sneak up on people overnight. It all starts with the constant tiredness. The work name was Cyborg.

We introduce MindEye2, a modeling approach that outputs reconstructions of seen images from fMRI activity with a similar quality to previous approaches using only a fraction of the training data.

PeekNote is a lightweight, always-on-top notes app for macOS. Each tab holds a separate text block. You can add code, emojis, formulas — whatever you need.

It is common for fMRI analyses to align subjects’ brains to a shared space for the purposes of increasing statistical power and/or assessing generality of scientific findings.

Many healthcare workers often face significant financial hurdles before life becomes easier for them. So, if you're planning to become one in the future, please be aware of the challenges.

The general public should be sensitized about the consequences of giving away their personal and private information to AI.

Apache Spark comes with a robust set of window functions, each designed for a different purpose. In this article, we'll explore some of the window functions provided by Spark SQL. We'll dive deep into the following functions: Ranking Functions, Analytical Functions and Aggregate Functions.

In this post, I share my experience working with web3 data. I also summarize the challenges you might face when building on it. My interest in Web3 data began when I was doing my Ph.D. on financial technologies.

Investing in crypto is like playing the pokies, i.e. you could ‘win’ or ‘lose’ it all in a single play. But by this token - all investing would be gambling. The longer you invest, the better the odds.