fabiochiu/medium-articles huggingface dataset:
Lockly has new smart locks for swingers and sliders (doors, that is)
Tags: Internet, Entertainment, Deals, Electronics

Lockly has new smart locks for swingers and sliders (doors, that is) Ashley Feb 2·2 min read

Lockly is one of the few smart lock manufacturers to also offer a smart entry latch (a lock and handle combo). The company’s latest products are the Lockly Guard smart deadbolt sliding and swing-style doors, and the Lockly Duo latch/deadbolt combo for swinging doors.



Lockly and its biometric smart locks first came to our attention in 2018. We reviewed its smart lock/video doorbell combo in early 2020. In both cases, we were impressed with the company’s fingerprint-recognition prowess and the Pin Genie features of its touch-sensitive numeric keypad scrambles the order of numbers to prevent a burglar from guessing your PIN based on the location of fingerprints. We were much less impressed with the convoluted process of installing its locks, but the company promises it’s resolved that issue.



[ Further reading: The best smart locks and deadbolts ] Lockly Lockly is also bringing its smart lock technology to sliding doors, with the Lockly Guard.



The Lockly Guard is designed for sliding and swing-style doors and fits any standard size aluminum or metal door frame. An optional RFID-card reader allows for contactless operation. In both cases, adding the optional $80 Wi-Fi hub adds Alexa and Google Assistant support and remote lock control and monitoring. It will be available in satin nickel, matte black, and metallic chrome finishes. It will sell for $500 when it goes on sale in the second quarter of 2021.



The Lockly Duo deadbolt/latch combo promises super-easy operation: You simply lift the handle up to secure the latch and throw the deadbolt with one move. Lockly will offer it in satin nickel and matte black finishes and expects it to come to retail later in the first quarter with an asking price of $400.



Both of these new locks will require an optional Wi-Fi hub to enable remote access.



Note: When you purchase something after clicking links in our articles, we may earn a small commission. Read our affiliate link policy for more details.
Celebrate St. Patrick’s Day 2021 with this Two-Day Only Deal on Amazon US
Tags: Maono, Deal, Podcast, Microphone

Celebrate St. Patrick’s Day 2021 with this Two-Day Only Deal on Amazon US Maono Mar 18·1 min read

Traditionally observed as a religious holiday for the anniversary of the death of St. Patrick, the patron saint of Ireland, St. Patrick’s Day has now evolved into a celebration with green-colored beer, parades, feasts, dancing, and music.

To celebrate St. Patrick’s Day, we’re offering a 15% discount on one of our most favored microphones MAONO A04. Designed especially for YouTubers and podcast hosts, the USB condenser microphone delivers crystal clear audio and comes with everything you need to start a professional recording.

MAONO AU-A04 USB Condenser Microphone Kit

Highlights

Professional sound chip 192kHz/24bit

16mm electret condenser transducer

Easy setup

High compatibility

Lots of accessories included

Specification

Polar Pattern: Cardioid

Frequency Response: 30Hz-16kHz

Sampling Rate: 192kHz/24bit

Sensitivity: -38dB+/-3dB (0dB=1V/Pa at 1kHz)

BUY NOW

Clip the coupon on the product page to get an extra 15% off on our best-selling podcast microphone kit.

This deal is only available on Amazon US
【新品推介】Meural WiFi Photo Frame 15.6" 智能電子相架 — MC315
Tags: Sales, Deals, Hk, Hongkong, Shopping

【新品推介】Meural WiFi Photo Frame 15.6" 智能電子相架 — MC315

【新品上架】Meural WiFi Photo Frame 15.6" 智能電子相架 — MC315

去看看：https://anlander.com/blogs/new-items/meural-wifi-photo-frame-15-6-mc315

【新品上架】Meural WiFi Photo Frame 15.6" 智能電子相架 — MC315｜HK$2392.00

去看看：https://anlander.com/products/meural-wifi-photo-frame-mc315

特色之處

● 15.6" 展示無須再打印小小相片

● 精緻簡約的外框設計

● 支持手機 APP 直接傳輸

● 可展示靜態相片及 15 秒動態視頻

● 可排程及定製化個人展示清單

● 隨擺放方式自動旋轉畫面

● TrueArt 顯示技術展現自然光影

● 自動亮度、霧面質感超低反光

※ 加入 Meural 藝術會籍訂閱方案可存取海量藝術品資料庫。

【香港行貨｜一年保養】

Meural WiFi Photo Frame 15.6" 智能電子相架 (MC315) 是結合了經典相架及藝術展示兩種用途，採用獨家 TrueArt 顯示技術，從全家福、旅行及生活紀錄，到素描、油畫、水彩、水墨甚至浮世繪等藝術品，令每一道光影栩栩如生，有如親臨。

採用防眩光霧面全高清顯示器和環境光傳感器，完美呈現高達 1670 萬種豐富色調及光影，亦可根據環境的光暗度自動調節畫面亮度，當房間沒有燈的時候，Meural Canvas 便自動進入睡眠狀態。

Meural WiFi Photo Frame 15.6" 智能電子相架 (MC315) 基本規格：

● 尺寸

寬：16in (408 mm)

高：10 in (259 mm)

深：1.68 in (42.4 mm)

重量：2.9 lb or (1.3kg)

● 顯示

-顯示技術：Crystal-clear 15.6 inch IPS anti-glare display

-解析度：1920 x 1080p resolution

● 硬體

-記憶體 & 儲存空間：1GB DDR3 RAM, 8GB storage capacity (4GB for storing images)

-處理器：Quad-core ARM, 1.8 GHz processor

-傳感器：方向感測/光線感測/電源感測

-WiFi：WiFi 802.11a/b/g/n/ac (2.4GHz and 5GHz)

● 電力

- DC Power port (located behind the stand), Approximately 20W (typical usage)

● 包裝內含：

- Meural WiFi Photo Frame

- Power adapter (6 ft. cord)

- Cleaning cloth

- Wall mount

- Wall anchors & screws (drywall)

- Pre-loaded sample art images from the Meural art library

- Quick start guide
Vans Sneakers for Everyone, as Low as $19 at Kohl’s
By: Theticket Beast
Tags: Sneakers, Deals, Online, Shoes, Shop

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Now’s your chance to save on Vans sneakers for the whole family. Head to Kohl’s and shop a variety of popular styles, all starting at $26.99.

Plus, Kohl’s Cardholders will find a unique coupon code in their Kohl’s Wallet for 15%, 20%, or 30% off their order. Please note that the coupon can be used up to 10 times.

Not a cardholder? Use code SHOP15 for 15% off your order. Sign up for a Kohl’s Charge Card and get 35% off your first order.

This deal is available online and in stores. Get free shipping on orders of $75 or more, or opt for free curbside pickup.

Buy 1 Vans Doheny Girls’ Skate Shoes (reg. $44.99) $26.99, sale price

Cardholders, use unique coupon code for 15%, 20%, or 30% off through April 3, limit 10

Non-cardholders, use SHOP15 for 15% off through April 3

Free shipping on orders of $75+ or free curbside pickup

Final Price: as low as $18.89

Buy 1 Vans Ward Kids’ Skate Shoes (reg. $44.99) $33.74, sale price

Cardholders, use unique coupon code for 15%, 20%, or 30% off through April 3, limit 10

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Buy 1 Vans Doheny Women’s Skate Shoes (reg. $59.99) $35.99, sale price

Cardholders, use unique coupon code for 15%, 20%, or 30% off through April 3, limit 10

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Free shipping on orders of $75+ or free curbside pickup

Final Price: as low as $25.19
Nonstop Dan has a special deal for you — get a password manager and a VPN with a discount
By: Pete Doot
Tags: Coupon, Password Manager, Discount, Deal, VPN

Nonstop Dan has a special deal for you — get a password manager and a VPN with a discount Pete Doot Feb 11, 2020·3 min read

Nonstop Dan is a YouTube channel that shows all the tips and tricks you need to afford that luxury travel. He is a great example that everything is achievable — he’s a college student who travels around the world and can show others how to do it too, without spending thousands of dollars in the process. Dan reviews first and business class, as well as economy and premium class flights. As his schedule is super hectic, Dan tries to find as many time-savers as possible, therefore he encourages his viewers to use a password manager — a tool that can manage all of your most important information in one spot, from your passwords to your credit card credentials.

Are you interested in getting the best password manager deal?

Nonstop Dan offers a discount to a premium password manager but now there’s another deal with an even heftier discount. Another premium password manager — NordPass, now has a great ongoing deal which gives a 50% discount to its 2-year deal and gives 6 extra months. The deal comes down to only $2.49/month. To grab the deal, just click on the link below, as the deal coupon code will apply instantly.

https://nordpass.com/special/?coupon=nordpassdeal

Why choose NordPass?

NordPass is not only a password manager that can autosave and autofill your passwords, but also offers a password strength checker as well as a random password generator. You can import and share your passwords securely with others. Its advantages consist of strong encryption and high-level security, keeping your information private. NordPass also offers its users not only browser extensions, but also apps for easier password maintenance and cross-device sharing.

Why not get a premium VPN service too?

Nonstop Dan’s suggests a password manager that also has a VPN for WiFi protection, but if you’re in need of a dedicated VPN service provider with a few more features — grab NordVPN. NordVPN now has a deal that gives a 70% discount to it’s 3-year deal (only $3.49/month). Click on the link below to get the said deal.

https://nordvpn.com/coupon/deal/?coupon=dealfornord

Why choose NordVPN?

NordVPN is a cybersecurity product that encrypts all your Internet traffic, making you private and secure online. It also lets you easily change your IP address, helping you bypass geo-blocks. Want to stream US Netflix? Just connect to a US server and you’re virtually there. NordVPN has more than 5000+ servers in 60 countries, an adblocker and other convenient features.
Mista GG has a NordVPN discount coupon for you — get the best deal
By: Jared Burns
Tags: Vpn Service, Discount Coupon Codes, Discount, Deal, VPN

Mista GG is an American YouTuber who now has over 500K subscribers. This YouTuber doesn’t really have a clear channel category but he does have a few topics he makes his videos about — destroying life hacks, the predator chronicles or to catch a predator (a very popular series that was moved to a different channel) as well as movie reviews. Mista GG makes a lot of videos on controversial topics, as he’s not afraid to criticize certain things that he personally finds nonsensical. In his “To catch a predator” chronicles, Mista GG talks about predators online, which ties in with an online and cybersecurity product he promotes — NordVPN.

How to get Mista GG’s NordVPN discount?

It’s very easy, as all you need to do is just click on the link below. You don’t have to write in the discount coupon, the link will automatically apply it and the discount.

Get a 70% NordVPN discount from Mista GG

With this discount coupon code, you’ll get a 70% discount off of NordVPN’s 3-year deal and only will have to pay only $3.49/month. This seems like a great deal for private and secure browsing online.

Why get NordVPN?

It is first and foremost a cybersecurity tool that enhances your online privacy. It encrypts all your traffic that lets you be secure online while masking your real IP address. It also blocks trackers as well as annoying ads and redirects you from malicious websites, letting you really avoid those dangerous and scammy websites.

It’s an easy to use tool that offers more features than security — you can use it for streaming, bypassing geo and content blocks, torrenting and more.

Who is Mista GG?

Like mentioned before, Mista GG is a YouTuber most famous for his comedic commentary on NBC’s “To catch a predator”. While he does post videos about various topics, it’s somewhat difficult to pigeonhole him — his videos are both comedic and funny, but can be serious and critical as well.

Mista GG is not the only YouTuber to talk about Internet security and recommend getting NordVPN. Other YouTube channels like Jay Foreman and Generation Films also suggest getting this VPN service provider.

What are NordVPN’s advantages?
Wavywebsurf has a special deal for you — get a premium password manager and a VPN with a discount
By: Pete Doot
Tags: Coupon, Password Manager, Discount, Deal, VPN

Wavywebsurf has a special deal for you — get a premium password manager and a VPN with a discount Pete Doot Feb 12, 2020·3 min read

Wavywebsurf is a YouTuber who mostly makes commentary on various topics such as other YouTubers whose popularity died down, what happened to previously famous memes and phenomenons and similar. He has a series “Your merch sucks!” where he rates merchandise of different stores as well as those sold by other YouTubers. Wavywebsurf often calls himself PewDiePie’s cousin not only because of his content but because of similar appearances too. He often talks about the Internet and data security, promoting the use of password managers and other cybersecurity tools, highlighting how easy it is to get your data compromised with flimsy passwords.

Grab the best password manager deal

Wavywebsurf promotes a premium password manager deal with a discount. However, there is now an even better deal with a bigger discount. You can grab NordPass, another premium password manager, with a 50% discount to its 2-year plan and also get 6 extra months on top (the monthly price comes down to only $2.49/month). Interested in this deal? Just click on the link below and the discount coupon code will be automatically applied.

https://nordpass.com/special/?coupon=getnordpass

Why get NordPass?

It’s a tool that will help remember all your complex passwords, autofill them as well as generate new passwords and check their strength. Saved a password on one device and can’t remember it while using the other? NordPass has apps and extensions available for all your cross-device password access and easy management. You can also easily share your passwords in a secure manner, store private notes on your account as well as scan and store your credit card information.

Grab a VPN with a discount too!

If you’re improving your cybersecurity, who not grab one of the most essential tools as well? A VPN encrypts all your Internet traffic, protecting your data and making your browsing more secure and private. NordVPN, one of the leading VPN providers, now also offers a 68% discount to its service, specifically, its 2-year deal that will cost you only $3.71 per month. Need this deal? Click the link below for the discount to apply automatically.

https://nordvpn.com/coupon/deal/?coupon=discountfornord

Why go for NordVPN?

NordVPN offers its users strong encryption and it has a strict no logs policy, which means that your data is never monitored or logged by the VPN service. You can use it to bypass geographical and content restrictions (it has more than 5000+ servers to connect to), hide your IP address and easily torrent in those countries that do not let you do that. It has a lot of extra features like an adblocker, 6 device support and more.
John Sundell Podcast NordVPN discount
By: Jan Abeffret
Tags: Coupon, Security, Deal, Privacy, VPN

John Sundell is known for his popular web platform “Swift by Sundell”. He is not only a creator of weekly swift articles, videos, etc., but also a host of a podcast. This podcast contains conversations about Swift and beyond, featuring a stellar cast of special guests. The main topics are related to programming, software development, UI tools and platforms, and much more. From time to time, he covers cyber security questions and tips on how to avoid these problems that frequently occur while working in this arena. Thus he is familiar with NordVPN — a cybersecurity software for online safety — and suggests a special discount.

How to get a NordVPN discount from John Sundell Podcast?

John Sundell suggests getting advanced security solution NordVPN with a generous discount that helps you keep your internet access safe and private. By using this deal you will be able to get a 3-year plan with a 70% discount for only $3.49/month.

Simply press on this link:

Get NordVPN with 70% discount from John Sundell

As you can see in the picture below, you will be instantly redirected to the official NordVPN web page, and a coupon code will be applied automatically:

Why choose NordVPN?

NordVPN is a solid award-winning privacy solution, which now serves more than 12 million users around the globe. Possibility to bypass Internet censorship and geo restrictions, change IP address and stay completely unreachable to spying eyes, attracts more and more new users every day.

It has more valuable features such as automatic kill-switch that prevents your data from leaking to the web, P2P servers that are the fastest and most convenient way to share files with large groups of people, and many more. Create one VPN account and use it on up to 6 devices simultaneously.

If you are still considering why NordVPN…

Double VPN servers. If there is a need for even higher security, than provides a standard server, there is an option for a double protection. Your internet traffic will be sent via two servers, encrypting it twice.

Helpful customer support. Pleasant agents are ready to help you 24/7. Do not hesitate to contact them if you encounter technical issues or you simply need general information about the product.

NordVPN is perfect for travelling. If you enjoy travelling either for business or leisure reasons and still want to watch Netflix, HBO and so on, you can do so just by connecting to the specific server. It is ideal for international video streaming.
Jay Foreman recommends NordVPN with a discount
By: Elias Gunnarsson
Tags: Cybersecurity, Discount, Deal, Privacy, VPN

Jay Foreman is a British gentleman and a YouTuber. He joined the YT community in 2006 and overtime improved so much that half-a-million subscribers are enjoying his entertaining and exciting content.

Sometimes he gets political, sometimes is a geeky historian, and other times makes songs for kids and…songs NOT for kids! This time Jay Foreman is providing a discount for a top-notch online privacy protection software — NordVPN.

How to get Jay Foreman’s NordVPN discount?

It’s just one click away, follow the link below to apply the coupon code automatically.

Get a 70% NordVPN discount from Jay Foreman

With this discount, you will have to pay a mere $3.49/month for a 3-year plan. So you can enjoy safe and private browsing for quite some time!

How can you benefit from NordVPN?

First and foremost, NordVPN is a cybersecurity software-oriented at online privacy protection. It creates safe and encrypted access to the Internet, which means that no malicious third party can obtain your data and extract sensitive information.

Moreover, it obfuscates your IP address, thus hiding your real physical location, and letting somebody know exactly where you are just by seeing what you do online doesn’t seem very safe, right? By changing IP address you can also bypass geographical restrictions, or access blocked websites like LinkedIn in Russia or Reddit in China.

Never Heard of Jay Foreman?

Jay Foreman is, by all means, interesting, but his topics are pretty narrow and specific. For example, he analyzes how world maps developed, which ones were incorrect, and why, how the lines between the states were drawn and so on.

In another playlist, you will find the history of London. Where does London start and where does it end? Why bicycles are not that popular in this magnificent city, or why there are so many airports around London.

Sadly, if you’re not from there, you might not find that very relevant.

For a more global historical perspective, I would recommend subscribing to The Armchair Historian. For a more generalized know-about-it-all Minute Earth is the channel to go! Both of them are recommending NordVPN as well!

What makes NordVPN special?

No-logs policy. NordVPN encrypts and reroutes your online traffic through their secure servers. And it has been proven that NordVPN does not store any unnecessary information on them, which means that your browsing activities will remain your business only.

Comfortable application design. Cybersecurity services can require some time to get used to, but not with NordVPN. Their minimalistic UX/UI design and one-click-away features will not leave you wanting more. Switching servers has never been that easy!

Good server quality. Because VPN reroutes traffic through its servers, it’s crucial to have good ones not to ruin online browsing experience. NordVPN has stable servers with good speeds, so even if you connect to the one that’s on the other side of the planet, you can expect it not to interfere with your browsing quality.
Get Mentour Pilot’s discount for the NordVPN deal — grab the coupon code
By: Jared Burns
Tags: Coupon Codes, Coupon, Discount, Deal, VPN

Mentour Pilot is a channel about everything related to flying and the airline industry. Swedish pilot Petter created this channel to share tips about piloting, insights on how to be a good pilot as well as other information about procedures, hints and more. He explains how airports and airlines manipulate you, answers to questions like what if the pilot got sick, do pilots have traffic jams and similar. Petter knows that public WiFi in airports are not secure, therefore he recommends getting NordVPN, a cybersecurity product that will secure your data and will keep it private. He also has a special discount to share, too.

How to get Mentour Pilot’s NordVPN discount?

It’s extremely easy — just click on the link below and the discount coupon code will apply automatically.

Get a 70% NordVPN discount from Mentour Pilot

With this, you’ll get a 70% discount off of NordVPN’s 3-year deal, that will come down to only $3.49/month for you. It’s a massive discount to a premium VPN service provider and knowing you’ll be secure on the Internet — even a better deal.

Who is Mentour Pilot?

Like mentioned before, a Swedish pilot Petter is behind the Mentour Pilot YouTube channel. Petter had tons of information and knowledge he wanted to share with others, therefore he created his own channel. He also wanted to create some more positive content about the aviation and airline industry altogether, as the one he used to run into was extremely bleak. Petter has his own website too, where he shares relevant news, his own app and is otherwise vocal about anything related to flying.

Mentour Pilot is not the only one to recommend NordVPN for better privacy, other YouTube channels like Mista GG, Ready to Glare, Jared Owen and dozens of others also suggest getting this VPN service provider.

Why choose NordVPN?
VPN Discount by The Nomadic Movement — Get The Coupon Code
By: Jett Hein
Tags: Coupon, Discount, Deals And Discounts, Deal, VPN

The Nomadic Movement channel is the place where a couple that decided to give up their corporate life and travel in their van as far as they can share their moments. Here you will find inspiration, challenges they face, tips and tricks for those who want to give up their cozy lives and travel non stop. This charming couple will definitely inspire you to follow your dreams.

On their channel you will also find a coupon code for Surfshark VPN. The couple themselves use this software to be secure online while traveling and also bypass all sorts of censorships online along the way.

How to get VPN coupon code by The Nomadic Movement

Go to Surfshark website here

Insert the coupon code nomad

Or follow this link: https://surfshark.com/deals?coupon=nomad

Sign up with your email and continue the purchase

With this coupon code you will get an 81% discount for 2-years plan and 1 extra month for free. The VPN with the discount will cost you $2.39 per month.

Surfshark coupon

Surfshark

Surfshark is one of the most trusted and leading VPNs in the market that offer such features as strict no logs policy, industry leading encryption, DNS and IP leak protection, built-in kill-switch and P2P servers for torrenting. Also, Surfshark supports an unlimited number of devices, offers fast servers worldwide, offers a built-in ad-blocker and protection from trackers. Surfshark works well with streaming platforms such as Netflix, BBC iPlayer and many other, it is an easy to use VPN, that offers 24/7 customer support services and 30-day money back guarantee.

Get Surfshark with 81% discount here
Technical Paper: Validity-Based Optimistic Smart Contracts
By: Connor Hughes
Tags: Smart Contracts, Research, Cryptocurrency, Crypto, Blockchain

Research and development is a significant part of what we do, finding novel ways to advance the technology that underpins the Fantom ecosystem.

Today, we’re releasing a new technical paper on the optimization of smart contracts. Solidity is the most widely-used programming language for smart contracts but relies on sequential execution and validation of functions. That is, you have to wait for the first function of a smart contract to complete before the second can execute to avoid double-spending.

Quan Nguyen, Andre Cronje and Michael Kong have proposed a new smart-contract programming language, Object Validity (OV), that allows for concurrent executions within smart contracts. This approach increases the throughput and efficiency of smart contracts in distributed ledger networks by pre-checking the invariants (properties that do not change regardless of an object’s state) of different objects and ensuring the functions do not violate them during execution. If there are no violations, then the smart contract can be executed concurrently without waiting for the network to validate each stage.

This approach also dramatically reduces security issues related to reentrancy. These occur when contracts act on multiple initial requests before the consequences of each are recorded in the ledger.

For example, if my account balance is $50 and I submit two withdrawal requests for $50 each, the contract could execute both withdrawals if the available balance hasn’t updated to $0 by the time the second withdrawal attempts to run.

Our research will form the basis for further development work on optimizing smart contract execution, which we expect to apply to Fantom technology and further increase the performance and usability of our networks.

Check out the full paper here at Cornell University’s arXiv library!
7 OpenZeppelin Contracts You Should Always Use
By: Alex Roan
Tags: Blockchain, Smart Contracts, Ethereum, Cryptocurrency, Programming

Controlling Access

1. Ownable

The onlyOwner pattern provided by the Ownable contract is a primitive but highly effective pattern for restricting access to certain functions. This makes it a very popular choice for smart contract developers.

It implements the premise that the address that deployed the smart contract is its owner. Like transferring ownership, certain functions should only be allowed to be called from the owner's address.

Figure 1 shows the Ownable contract.

Figure 1: Ownable contract

Notice how setting the owner of the contract is handled by the constructor on line 23. As soon as any child contract is initialized, the address which initializes it will, by default, become the _owner .

Figure 2 shows a simple implementation of extending the Ownable contract:

Figure 2: Ownable Contract

By adding the onlyOwner custom modifier to restrictedFunction() , only the owner of the contract can successfully call it.

2. Roles

The next level up from Ownable is the Roles library, which allows more than just one owner role to be implemented. This is handy when a contract has functions for multiple access levels.

Figure 3 shows the Roles library.

Figure 3: Roles.sol

Being a library, you can’t extend it as you would an abstract contract. Instead, contracts using this library use a using statement to declare that the functions provided by the library be used for a specific data type.

For example, figure 4 shows a contract which uses the Roles library to restrict functions to two roles: _minters and _burners .

Figure 4: Using Roles
How Blockchain technology can decrease our dependency on fossil fuels
By: Jonny Fry
Tags: Renewable Energy, Smart Contracts, Environment, Solar Energy, Blockchain

· · This website from Gridwatch shows in real time how electricity is being generated in the UK

·

· Great to see renewables i.e. solar, wind and biomass was responsible for over 50% of the UK energy generation

· In Australia PowerLedger is using Blockchain technology to enable Peer 2 Peer power (P2P)sharing

· International Energy Agency (IEA) claim 2.8 billion have insufficient power much of which could be supplied by micro electricity generation

· Microgrids that harness local renewable sources such as solar and wind are expected to reach an annual market value exceeding $1.2 billion p.a. globally by 2028 according to a report from Navigant Research in a new study that claimed the compound annual growth rate is projected at 67.8% for microgeneration.

· Ernst & Young predicts that the data administration of electricity costs may soon exceed the cost of electricity itself and believes Blockchain technology can help reduce many of these costs for power companies

· Blockchain-powered platforms enable the tracking of P2P energy and so instead of selling electricity to a countries National Grid it is possible to sell electricity direct to a user at a higher price. This results in the time it takes to pay for the installation of a solar or wind powered micro generation facility reduces so encouraging more people to invest and LESS fossil fuels being used

· However, as Micro generation from renewable energy increases who pays the cost to maintain and run a countries electricity infrastructure?

For more topics like this as for Digital Bytes, a weekly analysis of Blockchain and Digital Asset developments you can subscribe here :http://eepurl.com/gTDiwP
“Consideration” Under Common Law of Contracts
Tags: Smart Contracts, Consideration, Contract Disputes, Contract Law, Contract Formation

The common law tradition includes many legal systems modeled on the English system. These common law systems are basically ex- or present-day English colonies, including the US, Australia, New Zealand, India, parts of Canada, etc.

Map Source: Wikipedia

The law of contract formation is generally similar across common law jurisdictions (there’s a lot of convergence with civil law jurisdictions as well).

1. Elements of a K

Looking at US & English law as examples, we find that a contract (K) is a legally enforceable agreement between two or more parties that is typically comprised of several elements.

In the US: K = MA + C

= + In England: K = A1+ I + C

What are these weird symbols and notations? Here’s a key:

Capsule Summary on K Formation Elements in US/English Law (a larger chart w/more jdxns is available here)

As you can see, there are a lot of similarities between English & American contract formation rules. The terminology might be somewhat different, but both sets of rules are looking for the same thing: objective evidence of parties’ intent to create a contract.

In the US, the party that wants to prove the existence of a K must allege and prove the existence of what’s known as ‘mutual assent’ (MA). The same is true in England, except the English legal term used to describe MA is ‘agreement’ (that phrasing is confusing because it’s circular, since a K is a legally enforceable agreement, but c’est la vie).

If you’d like a deeper dive into this first element under US/English law, we have you covered:

After mutual assent, the party alleging a contract must also allege and prove what’s known as ‘consideration,’ the subject of this short guide.

2. Consideration Intro

Consideration is a tricky topic. It confounds both law students and experienced judges. But once we work through a few explanations and examples, you’ll see that it’s not as difficult as lawyers sometimes make it out to be.

Let’s start by asking a simple but important question: why does the common law have this requirement? What are the functions served by consideration?

At a very basic level, consideration is a legal tool used to show that parties had objective intent to enter into a contract.

Q: Consideration, what’s your function? A: Hooking up promises, and making them function!

So, how does a legal rule accomplish this important objective?

3. Consideration Must Be Alleged & Proven

How does the legal rule for consideration accomplish the objective of linking up A’s & B’s promises? — is a bit of a trick question. That’s because the rule itself isn’t doing anything for anyone.

More precisely, the doctrine of consideration places a burden on the party (A) alleging a contract to use consideration rules against a party (B) that is denying the existence of a K.

This may seem like a distinction without a difference, but it matters a lot, as we’ll see shortly.
Hashing Bits
By: Quillaudits Team
Tags: Vulnerability, Smart Contracts, Hacks, Smart Contract Security, Blockchain

17th July weekly edition-

→ 15th July:

Ape Rocket Finance, a DeFi yield farming aggregator suffered two flashloan attacks, also known as quick loan attack on BSC and its Polygon fork resulting in $1.26 Million loss in crypto assets. The two attacks were carried out using AAVE on Polygon and PancakeSwap on BSC. Ape Rocket Finance team has planned compensation to the ones affected. A detailed rite-up of the hack can be found here.

Bondly Finance, a popular DeFi project in the Polkadot ecosystem, was hacked after an attacker exploited an infinite mint bug and dumped 373 Million BONDLY tokens. As a result, BONDLY price crashed 60%. Community suspects it as a rug-pull since the owner minted the tokens.

→ 16th July:

THORChain, a decentralised cross-chain transaction protocol was hacked due to a bug in Bifrost, a DeFi protocol that connects Polkadot and different PoS blockchains. ETH Bifrost was recently updated to allow the router to ‘wrap’ by smart contracts. Attacker used this vulnerability to exploit the underlying THORChain router. Estimated loss is around 4,000 ETH and $5 Million. A detailed attack explanation can be found here.

→ 17th july:

PolyBunny, PancakBunny’s Polygon version was a victim of a flash-loan attack again when an attacker minted 2,136,672.9746569423 polyBUNNY and sold. The project suspended all Sushi vaults. Estimated loss is $2,402,462.
LKSCOIN Liquidity Mining goes on
By: Lks Foundation
Tags: Smart Contracts, Liquidity Mining, Cryptocurrency, Lkscoin, Blockchain

LKSCOIN has recently embarked on this journey into the world of Decentralized Finance. A new goal that excites us and of which we are very proud.

But what is decentralized finance? It is a new form of financial system which, unlike the classic centralized model that sees intermediary figures such as brokers, exchanges or banks, uses Smart Contracts through blockchain technology. In the specific case of the LKSCOIN, we are talking about the Ethereum blockchain, where it is already possible to find the LKS SWAP MACHINE that we presented in a previous article:

>> LKSCOIN SWAP Machine

What is it about?

A software that works as an automated exchange. It exchanges LKSCOIN (which uses a Blockchain modified by X11, the technology used by Dash) for LKSC (which uses the Ethereum blockchain).

The LKSCs allow you to take advantage of the opportunities that the Ethereum Blockchain offers, such as DeFi or Decentralized Finance.

About a year ago Ethereum launched one of the forerunners in the DeFi world: UniSwap. A real Exchange, obviously only for cryptocurrencies, which allows you to convert most of the cryptocurrencies existing on the market in a totally decentralized way. There are no servers and the liquidity required for trading operations is provided by anonymous users who place part of their liquidity within the platform, in exchange for trading fees.

The LKSCOIN Liquidity Mining program

That’s the news linked to our announcements: we recently started a rich Liquidity Mining program.

What does it mean? In practice, in addition to the trading fees, you will earn an amount of LKSC distributed by a Smart Contract!

We talked about it in detail in this article:

>> Liquidity Mining & LKSCOIN

What do you need to get started?

To take part in the Liquidity Mining program, you need LKSCs and USDTs.

LKSC : the recommended method is via Swap Machine (in this article you will find more details). You have to send LKS X11 to an address, provide your Ethereum address and wait for the conversion.

: the recommended method is via Swap Machine (in this article you will find more details). You have to send LKS X11 to an address, provide your Ethereum address and wait for the conversion. USDT: get them from an exchange like Binance, Eidoo, Bitfinex, etc. Remember to use USDT on Ethereum (Warning: ONLY ERC20, no BSC, no TRC20, no BEP20, no OMNI, but only ERC20 or you will lose your funds!)

Once you have the funds you intend to deposit (remember to add extra Ethereum fractions for Gas Fee), you are ready to become a Liquidity Provider.

We have prepared an official guide to support you in your Liquidity Mining business:

>> LKS LIQUIDITY MINING GUIDE

And remember that the official chat on Telegram is always at your disposal.

The first POOL is active from Wednesday 21 July from 10.00 CET, the second will be open shortly, but we will talk about it in a future article!
Biweekly update: swapping, testing, and growing!
By: Plenty Defi
Tags: Tezos, Defi, Smart Contracts, Blockchain

AMM launch when?🙄

We shared our latest AMM commit with the audit company for cost estimation. This audit will take a bit more time due to summer holidays and the limited availability of Tezos smart contract auditors.

Launching without audit?🙀

The time for rapid innovation on Tezos is now. An audit will help with giving the project a “stamp of approval”, but it’s never a guarantee that the code is exploit-free. We tested the contract ourselves and had multiple external developers look at the code. At launch, there will be a limit on the trade size to avoid heavy losses of funds in case of an exploit.

Which pairs will you have at launch?

We will launch with a USDtz-PLENTY and kUSD-PLENTY pair. We are open for suggestions on which trading pairs we should add next! Join the discussion on Discord.

Will you have darkmode?

Yes. 👇

darkmode! 🌑

Can I try it out on testnet?

When we have our UI integration finished, we will share a testnet version with a few selected community members. Keep a close eye on our socials if you want to be one of the first testers.
Comparison Between Smart Contracts and Live Contracts
By: Ata Tekeli
Tags: Smart Contracts, Live Contracts, Cryptocurrency, Crypto, Blockchain

Similar and different at the same time.

Smart Contracts

Smart contracts are if-else clauses that work if all the conditions are met. To illustrate an example, vending machines could be given as an example. Let’s think about a vending machine: to get the product, you need to enter the number of the product and pay for it to obtain the product. If you pay the right amount, it’ll give you the product right away. If you don’t give a sufficient amount, the machine requires you to put the funds unless it’s been fully paid. If you pay the machine more than the product, the machine will give you out the product and the change. And all these processes can’t be turned back.

Because smart contract processes can’t be turned back, there’s huge reliability on how the whole system will work. This has allowed automated business practices and helped companies to further secure their business processes. Especially when it comes to the supply chain, smart contracts could be used in full effect.

As smart contracts had some deficiencies, many companies had issues implementing them in various fields. Therefore, some other alternatives to smart contracts were born, and LTO Network became the first blockchain network offering alternatives to smart contracts.

Live Contracts

Live contracts work smart contracts in a similar way. But they can work even though all the conditions haven’t been met. Instead, these contracts decide the rules interact with all the parties involved in the contract. Therefore, these contracts are not binding, and it helps corporations in many ways.

As live contracts are flexible, many corporations started to implement Live contracts on their workflows. This has resulted in improvements for legal, notary, and leasing. While these fields are known for paper-based static processes that potentially having fraud. Live contracts are used as immutable evidence in these fields, and no counterfeit could ever occur.
EIP-1559 (Ethereum Gas Fee Model)
By: Assemble Protocol
Tags: Education, Assemble, Smart Contracts, Cryptocurrency, Blockchain

What is EIP-1559?

EIP-1559 is a significant improvement in the way users trade on Ethereum Mainnet. When a block is found, the ETH miner fills the block with “Top N” transactions and pays the amount of GWEI/Gas (ETH) he bid for each transaction.

The goal of EIP 1559

Troubleshooting fee volatility: Solving the problem of soaring fees when transactions are crowded in the Ethereum network

Troubleshooting unnecessary transaction delays: the dilemma of transaction approval

Current Ethereum Gas Fee Scheme

Under the current protocol, ETH users must bid for gas charges to pass through the fastest block of transactions. Therefore, the higher the bid, the higher the likelihood of a faster deal. This system is particularly problematic when the network is congested.

EIP-1559 System

EIP-1559 implements fixed fees for all transactions that depend on the level of activity or congestion the network handles at a given time. This adds the base_fee field to the block information in EIP-1559 depending on the congestion levelю Based on the base_fee field of the previous block and the amount of gas used (gas_used), the default fee for the current block will be determined. This can improve UX because users do not need to estimate gas charges. The EIP-1559 system sets BASE FEE according to network utilization. Everyone will pay the same fee for the given period.
October, on Dune
By: Dune Network
Tags: Smart Contracts, Cryptocurrency, Dapps, Dune Network, Updates

Photo by Stephanie Klepacki on Unsplash

We’ve had plenty of treats in the #duniverse this month! Exchange listings, DeFi on Dune, OASIS (Uniswap style DEX platform), stablecoin $DUSDT, Mainnet upgrades, on-chain governance, win loads of $DGG tokens with new games on Playground, a brand-new social site, competitions, and more!

OASIS (Open, Accessible, Secure and Independent Swapper)

In terms of adding value and use cases to the network, it doesn’t get much bigger than this. Uniswap has been a force of nature in 2020. Combine this model with the security and accessibility of Dune, and we feel OASIS can, and will, be a game-changer! Working in conjunction with $DUSDT (a stablecoin protocol backed by $USDT and verifiable upon the Chainlink blockchain) OASIS will enable fast and efficient liquidity to creators, as well as offer DeFi options to the #duniverse!

Read more here.

COINTIGER

With the trading of $DUN now live on Cointiger, there are now more options and accessibility to get involved with Dune Network than ever. Trading volume has seen figures of up to $700,000 per day*, and with this increased volume comes increased visibility. We hope to see other metrics follow a similar fashion!

PROTOCOL 5.5.1

Dune Network is a cutting-edge smart contract platform and, with the release of mainnet protocol upgrade 5.5 and 5.5.1, we take another leap forward. Improvements and fixes include:

Improvements and fixes for Love.

Voting and on-chain governance features.

Improved lazy baking mode.

And more!

Check out the details, and find out how to upgrade, here:

CRYPTOSERVICES

Turning our attention to creators, this month has seen the beta-launch of cryptoservices.xyz by Dune Network community ambassador, @GhislainCannes.

Check out the new social platform, and the massive home-baking photo upload contest, running now!

RAFFLE

Raffle, by Dune Playground, has landed! Win $DGG every hour, day, and week with huge $DGG prizes up for grabs! And, of course, it’s free to play, and you can convert your $DGG winnings into $DUN!

Try it now! (And read more details here!)

Join the #duniverse:

Discord: https://discord.gg/JBUGqFg

Telegram: https://t.me/dune_network

Medium: https://medium.com/dune-network

Twitter: https://twitter.com/dune_network

Reddit: https://www.reddit.com/r/dune_network/

Gitlab: https://gitlab.com/dune-network

Website: https://dune.network

Email: contact@dune.network

We’ve got a whole host of great stuff coming your way in November, so, for now, #stayduned!
What are Cryptocurrency Dark Pools?
By: Nansy Dunne
Tags: Smart Contracts, Cryptocurrency, Pool, Barter, Blockchain

Hello! 👋🏻 In this post, we will tell you what Dark Pools are.

Some of the major market players prefer to conduct anonymous transactions. A lot of institutional investors use dark pools in their work.

❓ What is Dark Pool?

Dark Pools are closed platforms that are hidden from most participants and are intended for trading valuable assets.

❓ What are they for in the crypto world?

⚫️ As you know, cryptocurrencies provide a fairly high level of anonymity, but if desired, transactions can still be tracked, although it is impossible to say for sure who they belong to.

⚫️ Dark pools allow investors to avoid overt speculation in the trading process. They give investors the ability to place orders and trade without advertising their intentions until a trade is executed. Most of the time, dark pools are used by institutional investors for bulk deals with large volumes of securities.

✅ The Barter platform is one of the few on the market that provides its own Dark Pool to its large investors. It is based on the zk-SNARKs protocol, which has proven itself at its best.

Barter’s Dark Pool Features:

✔️ Compliance with commercial secrets

✔️ Preventing market manipulation

✔️ For the personal safety of asset owners

✅ Such sites are distinguished by increased security and protect investors from all kinds of threats, including “proactive deals”.

📢 Find out more about the Barter project on our website: http://barter.company/

Join the community: http://t.me/barterteam

Telegram wallet: http://t.me/barterwalletbot
Blockchain Smart Contracts — A Revolution to Digital Era
By: Sara Technologies Inc.
Tags: Smart Contract Blockchain, Smartcontractdevelopment, Smart Contracts

A smart contract is a network protocol dedicated to digitally facilitating, authenticating, or executing a contract’s negotiation or enforcement. Smart contracts establish a trustful atmosphere while processing credible transactions even between strangers without intermediator. Smart contracts render transactions accountable, immutable, and transparent.

SARA Technologies is a trusted blockchain smart contract development company with a team of experienced professionals that always remain upfront to cost-effectively serve the clients with superior services within the committed deadline. We know what our clients need and how to satisfy their overall business needs. Accordingly, our expert’s craft and execute the service plan to deliver maximum proficiency, satisfaction, and maximum return on investment.

One of the most useful stuff about blockchain technology is its decentralized system shared between all authorized nodes. While transaction over a blockchain network, there is no need to pay Middlemen fees, which ultimately reduces disagreement and saves time. Blockchain technology has its complications, but they are high-rated, unquestionably quicker, more secure, and cost-effective than conventional systems. That’s why banking organizations and government agencies are moving their IT infrastructure over smart contracts-enabled blockchain networks.

Smart Contract development

How Smart Contracts are Benefitting Digital World

Smart Contracts are decentralized in nature, which keeps things open to all their associates, and all the transactions are easily traceable without any risks of fraud.

No third-party interferences maintain their autonomy. It speeds up the transaction processing and reduces the cost.

Accuracy and perfection are guaranteed. The transactions are only recorded once all their terms are conditions are satisfied explicitly.

The completely transparent smart contracts blockchain minimizes the chances of any disputes, disloyalty, or double-spending.

The digital contract runs over a software program that cuts hours of physical documentations, making digital transaction execution too fast compared to physical-world transactions.

Other Services That We Offer: