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Join the technological revolution that's taking the financial world by storm. Mastering Bitcoin is your guide through the seemingly complex world of Bitcoin, providing the knowledge you need to participate in the internet of money. Whether you're building the next killer app, investing in a startup, or simply curious about the technology, this revised and expanded third edition provides essential detail to get you started. Bitcoin, the first successful decentralized digital currency, has already spawned a multibillion-dollar global economy open to anyone with the knowledge and passion to participate. Mastering Bitcoin provides the knowledge. You supply the passion. The third edition includes: * A broad introduction to Bitcoin and its underlying blockchain—ideal for nontechnical users, investors, and business executives * An explanation of Bitcoin's technical foundation and cryptographic currency for developers, engineers, and software and systems architects * Details of the Bitcoin decentralized network, peer-to-peer architecture, transaction lifecycle, and security principles * New developments such as Taproot, Tapscript, Schnorr signatures, and the Lightning Network * A deep dive into Bitcoin applications, including how to combine the building blocks offered by this platform into powerful new tools * User stories, analogies, examples, and code snippets illustrating key technical concepts

- SCRATCH-FREE HOME – Reclaim your furniture with our Cat Scratch Furniture Protector & Training Tape. The double-sided sticky surface discourages cats from clawing sofas, chairs, and walls, helping redirect their scratching habits. - WIDER COVERAGE & CUSTOM FIT – Each pack includes 12 large flat sheets that cover more area than narrow rolls. Cut and customize to perfectly fit couches, doors, corners, and other high-risk scratch zones. - STRONG, INVISIBLE PROTECTION – Durable adhesive keeps the tape firmly in place yet removes cleanly without sticky residue. The transparent finish blends seamlessly with your décor while protecting against scratches. - SAFE & PET-FRIENDLY TRAINING – Made from non-toxic, residue-free material that’s safe for cats and furniture alike. The sticky texture trains cats naturally without harm to their paws or claws. - EASY PEEL & STICK APPLICATION – Simply peel, stick, and protect! Works on multiple surfaces and angles, giving you a quick, mess-free way to keep your home looking new.

Color: Clear    Style: 12-Pack Clear

- Stimulate the Mind: Shashibo is the leader in fidget sensory toys for kids & adults alike, providing stress relief, creativity building, and quiet, screen free time. With over 100 possible shapes to transform into, Collect and Connect your favorite colors to customize your Shashibo masterpiece with endless possibilities. - Cognitive Development: With over 100 possible combinations, Shashibo supports working memory through memorizing the steps to produce certain shapes. The flexibility and limitless possibilities in creating unique and beautiful structures when you Collect and Connect offers limitless possibilities to discover and master- improving spatial reasoning and the ability to make geometric art and transformations with ease. - Quiet Fidget Toys for Adults and Kids: Shashibo DODECA is suitable for the whole family, recommended for ages 8 and above. The perfect digital detox distraction in between meetings as a desk fidget toy for adults to reduce anxiety, provide a brain-break and calm the mind as you learn the endless possibilities of the Shashibo Magnetic Universe. - Collect & Connect: Shashibo fidgets come in a wide variety of colors, collaborations, and designs that are all compatible to connect with one another through 36 ultra strong magnets designed for connectivity and durability. - Silent Fidget for the Classroom: Shashibo is a classroom must-have that provides a stimulating, entertaining, and quiet activity that for a classroom. Shashibo is the perfect channel for restless hands and mental energy to calm the nervous system, making this fidget toy a great focus aid away from screens.

Color: Chameleon   

Data-science investigations have brought journalism into the 21st century, and—guided by The Intercept’s infosec expert Micah Lee— this book is your blueprint for uncovering hidden secrets in hacked datasets. Unlock the internet’s treasure trove of public interest data with Hacks, Leaks, and Revelations by Micah Lee, an investigative reporter and security engineer. This hands-on guide blends real-world techniques for researching large datasets with lessons on coding, data authentication, and digital security. All of this is spiced up with gripping stories from the front lines of investigative journalism. Dive into exposed datasets from a wide array of sources: the FBI, the DHS, police intelligence agencies, extremist groups like the Oath Keepers, and even a Russian ransomware gang. Lee’s own in-depth case studies on disinformation-peddling pandemic profiteers and neo-Nazi chatrooms serve as blueprints for your research. Gain practical skills in searching massive troves of data for keywords like “antifa” and pinpointing documents with newsworthy revelations. Get a crash course in Python to automate the analysis of millions of files. You will also learn how to: * Master encrypted messaging to safely communicate with whistleblowers. * Secure datasets over encrypted channels using Signal, Tor Browser, OnionShare, and SecureDrop. * Harvest data from the BlueLeaks collection of internal memos, financial records, and more from over 200 state, local, and federal agencies. * Probe leaked email archives about offshore detention centers and the Heritage Foundation. * Analyze metadata from videos of the January 6 attack on the US Capitol, sourced from the Parler social network. We live in an age where hacking and whistleblowing can unearth secrets that alter history. Hacks, Leaks, and Revelations is your toolkit for uncovering new stories and hidden truths. Crack open your laptop, plug in a hard drive, and get ready to change history.

- CLOSED-COMB DOUBLE EDGE SHAVE: The MÜHLE R89 safety razor features a closed-comb head with gentle geometry and a slightly steeper blade angle. Its toothless guard edge and classic double edge (DE) blade support controlled single-blade shaving for precise contours and a thorough, gentle wet shave. - PRECISION METAL CONSTRUCTION: Built with a durable metal handle and mechanically precise razor head for stable, controlled handling during wet shaving. Corrosion-resistant plated metal construction gives the R89 a substantial, balanced feel in hand, weighing approximately 70 g across all finishes. - REPLACEABLE DOUBLE EDGE BLADES: This reusable safety razor uses standard replaceable double edge blades, with one blade included, and is compatible with most major DE blade brands. The detachable blade system makes blade changes straightforward and offers a reusable alternative to disposable and multi-blade cartridge razors for regular beard and face grooming. - THREE DISTINCTIVE FINISHES: Choose brilliant Chrome, understated Black/Chrome, or refined Rose Gold to suit your personal grooming style. Each finish brings a different look to the classic R89 design, making this metal razor a versatile addition to a wet shaving kit or grooming gift. - MÜHLE GERMAN CRAFTSMANSHIP, GIFT-READY: Made in Germany as part of the MÜHLE TRADITIONAL collection, the R89 arrives in a branded MÜHLE gift box — a refined, ready-to-give presentation for birthdays, anniversaries, or Father's Day. Combines mechanical precision with timeless design, ideal for the man who appreciates deliberate craftsmanship.

Color: Rosegold

Bitcoin didn't emerge overnight. Long before Satoshi Nakamoto published the Bitcoin white paper, generations of economists, cryptographers, computer scientists, privacy advocates, and visionaries were grappling with a difficult question: Could digital money exist without governments, banks, or centralized control? The Genesis Book tells the remarkable story of the ideas, innovations, failures, and breakthroughs that ultimately led to the invention of Bitcoin—the world's first successful peer-to-peer electronic cash system. Drawing on extensive historical research and technical expertise, Aaron van Wirdum traces the intellectual and technological roots of Bitcoin across more than a century of economic thought and decades of cryptographic innovation. From early monetary theorists and Austrian economists to the cypherpunk movement and pioneering digital cash experiments, this book reveals the hidden history behind one of the most important technological developments of the modern era. Inside, you'll discover: • The thinkers and innovators who laid Bitcoin's foundation • The origins of digital cash and cryptographic money • Why previous attempts at digital currency failed • The rise of the cypherpunk movement and online privacy activism • The technological breakthroughs that made Bitcoin possible • How economics, cryptography, and computer science converged in a single invention Unlike many books that focus on Bitcoin's price, adoption, or future potential, The Genesis Book explores the deeper story of how Bitcoin came to exist in the first place. Written in an engaging and accessible style, Aaron van Wirdum transforms complex technical and historical subjects into a compelling narrative that appeals to newcomers and experienced Bitcoiners alike. His ability to connect seemingly unrelated developments across economics, technology, politics, and philosophy provides readers with a richer understanding of Bitcoin's significance. Praised by leading historians, developers, researchers, and industry pioneers, The Genesis Book offers an authoritative account of the people, ideas, and events that changed the future of money. If you want to understand Bitcoin, start by understanding its origins. Discover the fascinating history behind the invention that continues to reshape finance, technology, and society.

- CLOSED-COMB DOUBLE EDGE SHAVE: The MÜHLE R89 safety razor features a closed-comb head with gentle geometry and a slightly steeper blade angle. Its toothless guard edge and classic double edge (DE) blade support controlled single-blade shaving for precise contours and a thorough, gentle wet shave. - PRECISION METAL CONSTRUCTION: Built with a durable metal handle and mechanically precise razor head for stable, controlled handling during wet shaving. Corrosion-resistant plated metal construction gives the R89 a substantial, balanced feel in hand, weighing approximately 70 g across all finishes. - REPLACEABLE DOUBLE EDGE BLADES: This reusable safety razor uses standard replaceable double edge blades, with one blade included, and is compatible with most major DE blade brands. The detachable blade system makes blade changes straightforward and offers a reusable alternative to disposable and multi-blade cartridge razors for regular beard and face grooming. - THREE DISTINCTIVE FINISHES: Choose brilliant Chrome, understated Black/Chrome, or refined Rose Gold to suit your personal grooming style. Each finish brings a different look to the classic R89 design, making this metal razor a versatile addition to a wet shaving kit or grooming gift. - MÜHLE GERMAN CRAFTSMANSHIP, GIFT-READY: Made in Germany as part of the MÜHLE TRADITIONAL collection, the R89 arrives in a branded MÜHLE gift box — a refined, ready-to-give presentation for birthdays, anniversaries, or Father's Day. Combines mechanical precision with timeless design, ideal for the man who appreciates deliberate craftsmanship.

Color: Black/Chrome

- ENJOY THE CLASSICS: The Blockbuster retro jigsaw puzzle line features artwork from classic movies from the '70s, '80s, '90s, and '00s - RETRO STORAGE CASE: Plastic storage case inspired by the old Blockbuster VHS rental cases - AWESOME ORIGINAL ARTWORK FROM THE MOVIES: Vibrant art that pops, making this puzzle perfect for framing. Measures 18" x 24" when complete. Recommended for ages 8 and up - Hours of Stimulating Fun: Puzzles are a great way to help support a child’s development as they play, building skills such as concentration, problem-solving, and hand-eye coordination - Spin Master Games & Toys: Looking for kids games, yard games & card games for adults, kids or teens? Find family favorite puzzles & games for family game night, travel games, kids puzzles & more - Includes: Plastic Storage Case, 500 Puzzle Pieces

Color: Sixteen Candles

- 27-inch QHD (2560 x 1440) gaming monitor with overclock to 260Hz refresh rate designed for professional gamers and immersive gameplay - ASUS Extreme Low Motion Blur Sync (ELMB Sync) technology enables ELMB and variable-refresh-rate technologies to work simultaneously to eliminate ghosting and tearing for sharp gaming visuals with high frame rates - FreeSync Premium, G-Sync compatible and VESA AdaptiveSync technology delivers a seamless, tear-free gaming experience by enabling VRR (variable refresh rate) by default - High Dynamic Range (HDR) technology with DisplayHDR 400 compliance supports HDR-10 format to enhance bright and dark areas - What's in the box: DisplayPort cable, HDMI cable, USB Type-B to A cable, Power cord, L-shaped Screwdriver, Quick start guide, Warranty Card - 3-month Adobe Creative Cloud: Receive complimentary access with the purchase of this product (valid until 8/31/2026)

Style: 27" Fast IPS QHD 260Hz G-SYNC Height Adjust

- Embrace Your Inner Hero: Defend your town against 7 evil monsters you love to fear, including Dracula, Frankenstein, the Mummy & more. Hours of exciting horrors for boys, girls, family and friends. Test your courage and tactical thinking to survive. - Engaging Strategic Family Gameplay: Master the art of survival and connect with your inner hero as you navigate the monster-infested town with cunning tactics to outsmart your opponents utilizing critical thinking, problem solving & teamwork skills. - Visually Stunning Experience: Immerse yourself in the terrifying world of Horrified - Universal Monsters with exquisite artwork and thematic components that enhance every game session. With 7 monsters on the loose, exciting gameplay & heroics abound. - Easy to Learn: Each monster offers a unique challenge, providing a fresh and distinct catastrophe with every game! Experience the thrill of mastering different play styles as you adapt your survival strategies with every 60-minute game session. - Game Night Excitement: Great for 1-5 conniving players - Includes 1 game board, 7 monster miniatures, 75 cards, 3 dice, movers, bases, placards, instructions, and more. Everything for a thrilling, monster-defeating experience.

- High-Resolution WQHD Display: 27-inch IPS panel with 2560x1440 resolution, 165Hz overclocked refresh rate, and 1ms MPRT response time with G-SYNC compatibility for smooth tear-free gaming experience - Advanced Motion Clarity Technology: Extreme Low Motion Blur Sync (ELMB Sync) technology reduces screen tearing and ghosting during fast-paced gaming sessions - Ergonomic Design with Eye Care: Features ASUS Eye Care Technology to minimize eye fatigue during extended use, plus ergonomic stand with full height, tilt, swivel, and pivot adjustments to accommodate any desk setup - Enhanced Visual Performance: Shadow Boost technology enhances image details in dark areas and brightens scenes without over-exposing bright areas for improved visibility - Versatile Connectivity Options: Flexible connectivity with DisplayPort 1.2 and HDMI v2.0 ports for multiple device compatibility - Free 1-month Adobe Creative Cloud Subscription: Receive complimentary access with the purchase of this product (offer valid to 8/31/2028) - VESA Mount Compatible: VESA mountable design allows for flexible installation options including wall mounting or monitor arm attachment for customized workspace configuration - Warranty Coverage: 3 Year Warranty with Advanced Replacement and Repair service

Style: 27" QHD 165Hz G-SYNC

- LIFELIKE FLICKERING CANDLELIGHT: The warm white glow flickers like a real candle from across the room, while the melted-edge design adds realistic detail up close; create cozy candlelight across votive holders, table centerpieces, mantels and seasonal displays - 40X LONGER-LASTING GLOW: Each tea light comes with a pre-installed 240mAh CR2032 battery, ready to glow right out of the box; it delivers 200+ hours of flickering light—about 40 times the runtime of a typical 5-hour wax tea light—helping decorations last through weddings, parties and holidays - SET THE SCENE IN SECONDS: Slide the switch on the base and the warm flicker starts instantly. The compact design fits easily into holders, lanterns and centerpieces, while the replaceable CR2032 battery lets you reuse each tea light for future celebrations and seasonal displays - PEACE OF MIND AROUND KIDS & PETS: Enjoy the glow without the worry of open flames, smoke or dripping wax, even if a candle is knocked over. Made with virgin polypropylene and a secure two-step battery compartment tested to meet UL 4200A requirements, each tea light is designed with everyday safety in mind - FITS HOLDERS AND EVERYDAY DECOR: At 1.5 in dia x 1.3 in H, each tealight fits most standard tea light holders, votive cups and wall sconces; use for lanterns, home ambiance, memorial tables, intimate wedding centerpieces, jack-o'-lanterns and Christmas villages; suitable for outdoor displays and light rain or splashes, but do not submerge

Color: Warm White Glow – White Body