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Litecoin Core v0.15.1 Release

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Adrian Gallagher

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We are pleased to release Litecoin Core 0.15.1 release. This is a new minor version release, including new features, various bug fixes and performance improvements, as well as updated translations. It is recommended for all users to upgrade to this version.

A number of changes to the way Litecoin Core deals with peer connections and invalid blocks have been made, as a safety precaution against blockchain forks and misbehaving peers.

  • Unrequested blocks with less work than the minimum-chain-work are now no longer processed even if they have more work than the tip (a potential issue during IBD where the tip may have low-work). This prevents peers wasting the resources of a node.
  • Peers which provide a chain with less work than the minimum-chain-work during IBD will now be disconnected.
  • For a given outbound peer, we now check whether their best known block has at least as much work as our tip. If it doesn’t, and if we still haven’t heard about a block with sufficient work after a 20 minute timeout, then we send a single getheaders message, and wait 2 more minutes. If after two minutes their best known block has insufficient work, we disconnect that peer. We protect 4 of our outbound peers from being disconnected by this logic to prevent excessive network topology changes as a result of this algorithm, while still ensuring that we have a reasonable number of nodes not known to be on bogus chains.
  • Outbound (non-manual) peers that serve us block headers that are already known to be invalid (other than compact block announcements, because BIP 152 explicitly permits nodes to relay compact blocks before fully validating them) will now be disconnected.
  • If the chain tip has not been advanced for over 7.5 minutes, we now assume the tip may be stale and will try to connect to an additional outbound peer. A periodic check ensures that if this extra peer connection is in use, we will disconnect the peer that least recently announced a new block.
  • The set of all known invalid-themselves blocks (i.e. blocks which we attempted to connect but which were found to be invalid) are now tracked and used to check if new headers build on an invalid chain. This ensures that everything that descends from an invalid block is marked as such.

The minimum relay fee -minrelayfee has been lowered to 0.01 lites per kB (0.00001 LTC). This is to prepare for dropping the minimum transaction fee to 0.1 lites per kB (0.0001 LTC) in the next release.

Mempool replacement --mempoolreplacement has been disabled by default.

Though blockmaxweight has been preferred for limiting the size of blocks returned by getblocktemplate since 0.13.0, blockmaxsize remained as an option for those who wished to limit their block size directly. Using this option resulted in a few UI issues as well as non-optimal fee selection and ever-so-slightly worse performance, and has thus now been deprecated. Further, the blockmaxsize option is now used only to calculate an implied blockmaxweight, instead of limiting block size directly. Any miners who wish to limit their blocks by size, instead of by weight, will have to do so manually by removing transactions from their block template directly.

The GUI settings will now be written to guisettings.ini.bak in the data directory before wiping them when the -resetguisettings argument is used. This can be used to retroactively troubleshoot issues due to the GUI settings.

Previously, it was possible to open the same wallet twice by manually copying the wallet file, causing issues when both were opened simultaneously. It is no longer possible to open copies of the same wallet.

A hidden debug argument -minimumchainwork has been added to allow a custom minimum work value to be used when validating a chain.

  • The “currentblocksize” value in getmininginfo has been removed.
  • dumpwallet no longer allows overwriting files. This is a security measure as well as prevents dangerous user mistakes.
  • backupwallet will now fail when attempting to backup to source file, rather than destroying the wallet.
  • listsinceblock will now throw an error if an unknown blockhash argument value is passed, instead of returning a list of all wallet transactions since the genesis block. The behaviour is unchanged when an empty string is provided.

To download, please visit the download page here. Alternatively, you can view the download folder here.

Please use GPG to verify the integrity of the release binaries. This ensures that the binary you have downloaded has not been tampered with. Linux, MacOS and Win32 cygwin command line GPG instructions are available here. Please also note that we GPG sign the binaries as a convenience to you, the ultimate way to verify the integrity of the builds is to build them yourself using Gitian. Instructions on how to perform these builds, can be found here.

For this release, the binaries have been signed with key identifier FE3348877809386C (thrasher’s key).

Despite this version being heavily tested, this version may still contain bugs. Always backup your wallet.dat file before upgrading. If you encounter any issues, please let us know by posting to the bug reporting section below.

The master branch contains the latest commits to the next stable releases of Litecoin Core.

Build instructions for Linux can be found here.

Build instructions for OSX can be found here.

Builds instructions for Windows can be found here.

Submit any issues you encounter here and one of the Litecoin developers will assist you.

Sign up for announcements only or development discussion.

These are the SHA-256 hashes of the released files:

686acf75f76befd39ca8b3a6b3ea86e52775fc33220970cd6db9e75c6bb814dc litecoin-0.15.1-aarch64-linux-gnu.tar.gz
38df3210486dfe1af59b0db713be7c5567158dda6510efc92e76b5c3adfa7602 litecoin-0.15.1-arm-linux-gnueabihf.tar.gz
8559c17d4b7ca77c2b8844d9013cf4a7e575515263deae06c64f4c5da1486a12 litecoin-0.15.1-i686-pc-linux-gnu.tar.gz
2bb565a77779be4ed5b186c93891bc0a12352c94316a1fc44388898f7afb7bc2 litecoin-0.15.1-osx64.tar.gz
e33039232541c190a1529323b6d872d986f8b14bc2fcb8763721de52ed9f9096 litecoin-0.15.1-osx.dmg
d5b2b12b7d7817ad0db5abb54fb06cd37e5379db1b89c72d656df3ba59d355be litecoin-0.15.1.tar.gz
97fd13845045475a62e5707ded25d5be75ea1c4d89080418dcba7a670ee46dad litecoin-0.15.1-win32-setup.exe
7885caabac4968480511b502621670edbb7b0661378cb8a6da86450a74c83d94 litecoin-0.15.1-win32.zip
71d430481e5064ad56e793b81f1d5e5f9f811107794a95c6ad751a3bee9d6e99 litecoin-0.15.1-win64-setup.exe
eae66242ef66ee22f403ade0c2795ff74f6654bf3fc546e99bde2e6e4c9e148f litecoin-0.15.1-win64.zip
77062f7bad781dd6667854b3c094dbf51094b33405c6cd25c36d07e0dd5e92e5 litecoin-0.15.1-x86_64-linux-gnu.tar.gz

Thanks to everyone who directly contributed to this release:

  • The Bitcoin Core Developers
  • Adrian Gallagher
  • aunyks
  • coblee
  • cryptonexii
  • gabrieldov
  • Martin Smith
  • NeMO84
  • ppm0
  • romanornr
  • shaolinfry
  • spl0i7
  • ultragtx
  • VKoskiv
  • voidmain
  • xinxi

Source: https://blog.litecoin.org/litecoin-core-v0-15-1-release-d2a400cb78bc?source=rss—-d41bceeb173b—4

Blockchain

PlotX v2 Mainnet Launch: DeFi Prediction Markets

Republished by Plato

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[PRESS RELEASE – Please Read Disclaimer]

AscendEX, formerly BitMax, an industry-leading digital asset trading platform built by Wall Street quant trading veterans, congratulates PlotX – a cross-chain prediction market protocol on their v2 Mainnet launch on the Polygon Network on May 14 at 12:00 p.m. UTC.

PlotX Version 1 (“v1”) was launched in October 2020 as a decentralized non-custodial prediction market protocol on the Ethereum Blockchain. PlotX allows crypto-traders to use their skills to predict the future value of digital assets like ETH, BTC. Markets on PlotX v1 were automatically created in intervals of 4 hour, 1 day and 1 week.

The v2 has been under development since December 2020 and the testnet was released on April 13th, 2021 for the public. After rigorous testing by the community, the launch of PlotX v2 on the Polygon Mainnet is now scheduled on May 14th, 2021.

PlotX v2 has focussed heavily on simplifying the prediction-making experience for users thanks to a consistent dialogue with their community via the research forum and their official community telegram group. It brings the experience closer to mainstream applications while retaining the DeFi ethos of being non-custodial and permissionless.

This can be seen in the marquee features that PlotX announced via their recent blog post about the mainnet release:

  1. Gasless prediction-making – via meta-transactions that abstract the process for users so they only have to make a single transaction while making predictions
  2. Smooth token bridging – via cross-chain swap technology, that enables users to move $PLOT between Ethereuem, Polygon and other EVM compatible chains like BSC & Solana, from within the application itself
  3. Guaranteed liquidity provisions – via incentive alignment of market creators for providing liquidity for new markets, making it lucrative for users to participate in
  4. Simple onboarding experience – for users, especially ones who are not familiar with metamask and RPC changes, to login using their email addresses without compromising on the non-custodial nature of the dapp

The team has built a class product and is highly receptive to the community. As per the roadmap, upgrades in V2 do not end here; numerous new features are slated to be introduced that will equip users with exciting new prediction opportunities.

Ish Goel, co-founder PlotX, shares his thoughts “It has been an exciting journey for us since the launch of PlotX v1 in October 2020. Prediction markets have always been an exciting derivative for crypto traders. However, they have always faced the challenges of a complex UX, high gas fees & low market liquidity that has also resulted in a lack of growth of the space. With PlotX v2 we have worked alongside our community to solve these challenges by introducing an overhauled UX, deploying on Polygon and introducing liquidity bootstrapping mechanisms for new markets. The community has reacted positively to these features and we’re super excited to reveal the mainnet app to them as well as the larger crypto trading community!”

About AscendEX

Originally founded in 2018 as BitMax.io, AscendEx is a leading crypto and digital asset financial platform catering to both professional and retail traders. Our venue offers spot, futures, margin trading and staking products and incorporates key elements from the DeFi space to foster a unique market structure for users. AscendEx is led by a team of Wall Street veterans who have applied traditional markets’ rigor to create a robust, secure, and reliable experience for all participants; and a consistent source of liquidity for primary offerings.

About PlotX

PlotX is a cross-chain Prediction Market protocol built by the ex-CTO of Nexus Mutual (>$1bn mcap). It enables crypto-asset price predictions, like “What will be the price of BTC/USDT in the next 1 hour?”

Dubbed as the Uniswap of Prediction Markets, PlotX is the simplest and most fun DeFi derivative for crypto traders.

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Source: https://cryptopotato.com/plotx-v2-mainnet-launch-defi-prediction-markets/

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Blockchain

CBDCs Are Not That Stable And May Eventually Kill Bitcoin, Says Financial Expert

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Edward Chancellor – a British journalist and financial historian, explained that the first central bank digital currencies are likely to raise inflation which can lead to the destruction of Bitcoin. He agreed that CBDCs are ”cool” but certainly not stable.

CBDCs Would Mean The End Of BTC

Nowadays, many central banks of numerous leading economies such as China, Japan, and the US, are researching the option of launching their own CBDC. In a recent interview for Reuters, Edward Chancellor opined that central bank digital currencies are highly risky projects.

He said that CBDCs might even kill Bitcoin. Chancellor explained that it is much easier to distribute and ”print” digital currencies rather than cash, and that will cause an utterly high level of inflation.

He then added that in order to solve the issue, the governments and central banks would have to fix the emission of their digital coins – which number would be much higher than 21 million bitcoins:

”When banks get it right with CBDCs this will kill Bitcoin.”

The historian analyzed that changes in the form of money are normal and have happened multiple times in the past. As an example, he pointed to the paper money which once replaced metal coins. Chancellor predicted that in the process of the financial revolution, digital currencies would invade the world, but he opined that Bitcoin would not be among one of them.


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In conclusion, the journalist said that central bank digital currencies are ”cool” as a project but can not qualify as stable.

Deutsche Bank on CBDCs

Recently, the multinational investment banking giant – Deutsche bank – shared similar thoughts. The CIO of the German institution – Christian Nolting – predicted that CBDCs could damage Bitcoin’s role as a payment instrument. He also suggested that the primary cryptocurrency could serve as a store of value.

According to Nolting, the crypto industry is ”here to stay.” On the other hand, he warned that ”governments and more digitally-aware populations might ultimately prefer to go with CBDCs,” instead of relying on the decentralized nature of BTC. Furthermore, some potentially harming legislative frameworks developed by world regulators could reduce digital assets’ chances of serving as international payment instruments:

”A widespread introduction of CBDCs accompanied by higher regulation of cryptocurrencies could create a more challenging environment for crypto assets as some of their advantages compared to traditional financial assets would fade in the longer term.”

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Source: https://cryptopotato.com/cbdcs-are-not-that-stable-and-may-eventually-kill-bitcoin-says-financial-expert/

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Blockchain

Bitcoin Mining Company Vows to be Carbon Neutral Following Tesla’s Recent Statement

Republished by Plato

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It goes without saying that Tesla took center stage last week when the company announced it would no longer support bitcoin payments for its electric vehicles.

The message seems to have resonated, as Greenidge Generation Bitcoin Mining has vowed to be carbon neutral in 2021 and beyond.

Carbon Neutral Bitcoin Mining

After announcing plans to expand its Bitcoin mining operations last month, Greenidge is now looking to go entirely carbon neutral this year and in the future.

The company is committed to the cause, and it plans to invest in US-based renewable energy projects.

According to a recent press release, the company will also take part in the Regional Greenhouse Gas Initiative, which is a market-based program where participants sell CO2 allowances through auctions and invest the proceeds in renewable energy and energy efficiency.


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Speaking on the matter was Jeffrey Kirt, the CEO of the company, who said:

“Our bitcoin mining capability is already best-in-class and seamlessly integrated with our electricity generation that powers thousands of homes and businesses. By taking the bold and unique step of making or cryptocurrency mining fully carbon neutral immediately – as opposed to some distant date in the future – Greenidge is once again leading in environmental efforts.”

Musk’s Message Resonates

Greenidge’s announcement comes days after the leading electric vehicle manufacturer, Tesla, revealed that it would no longer support bitcoin payments. As a reason for its decision, the company cited environmental concerns related to bitcoin mining.

Elon Musk, the company’s CEO, confirmed and reiterated that he is bullish on crypto but so long as it doesn’t have a negative environmental impact.

The company also said that it’s looking for ‘greener’ alternatives to Bitcoin so that it can continue accepting crypto payments. This led to many speculations about which cryptocurrency it would choose. Shortly after, Musk said that he’s working closely with Dogecoin developers to improve transaction efficiency, causing many to believe that the meme-inspired coin might be Tesla’s choice.

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Source: https://cryptopotato.com/bitcoin-mining-company-vows-to-be-carbon-neutral-following-teslas-recent-statement/

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