#193 Dave Collins & Jake Yocom-Piatt: Decred - A Hybrid Approach to Blockchain Governance        

Dave Collins and Jake Yocom-Piatt join us to talk about Decred, a cryptocurrency which introduces an innovative system of community-based governance into its blockchain. Decred implements a hybrid Proof of Work and Proof of Stake system in which miners validate transactions, while users can vote on new features and upgrades to the protocol. This clever approach enables efficient blockchain governance, which has demonstrated to be successful in a recent protocol upgrade on the live network.

Topics discussed in this episode:

  • Dave and Jake's respective backgrounds in the blockchain space
  • The challenges addressed by Decred, specifically regarding blockchain governance
  • Decred's hybrid Proof of Work/Proof of Stake approach to governance
  • How users of the network vote on protocol upgrade with ""tickets""
  • Possible downfalls and attack vectors to this approach
  • How Decred's governance model successfully implemented a hard fork on the production network
  • Decred's approach to development funding

Links mentioned in this episode:

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Watch or listen, Epicenter is available wherever you get your podcasts.

Epicenter is hosted by Brian Fabian Crain, S?ƒbastien Couture & Meher Roy.


          8月8日(火)のつぶやき その3        

宇宙を支配する数式を、あなたの手のひらに。
素粒子の標準模型に重力の作用を加えたものが書かれた指輪が、阪大生協で限定発売開始。豊中キャンパス生協で。明日の理学部一般公開に来られる方もぜひ手に取ってみてください。わたくしが監修させて… twitter.com/i/web/status/8…

— 橋本幸士 Koji Hashimoto (@hashimotostring) 2017年8月8日 - 13:31

来れそうな方は@いただけると助かります>人数把握のため。
前回多すぎてお店がぱんぱんだったwんで、席を確保しておこうとおもいます。 twitter.com/tyk97/status/8…

— Tetsu UASF 大石哲之 (@tyk97) 2017年8月8日 - 15:42

@sen_axis なんか、ICOでいきりたっているのは法人なんですよね。
日本のICOはプロジェクトではなく、法人が主体になりそう。プロトコルがやるという概念がそもそもないようで。

— Tetsu UASF 大石哲之 (@tyk97) 2017年8月8日 - 15:39

なんか面白そう!

GMOインターネット、「トークントレーダー」のオープンソースを公開 news.nicovideo.jp/watch/nw2913796 #niconews

— いりやっち(VALU・ビットコイン) (@iriya0808) 2017年8月8日 - 17:10

$FXBTCJPY、4hBM。4h+2σに当って少し押し返されている。ブレイク出来るか? chart jp.tradingview.com/x/C3zEZ2fg/ via tradingview.com

— マタドール (@FXtradenote) 2017年8月8日 - 19:23

これは本質的にビットコインコアのオリジナルビットコイン、SegWit2xコインへの分裂が3ヶ月後の2MB HFまたは $BCHの様なHFにより起こる事になります。 #ビットコイン #Bitcon #仮想通貨 #ブロックチェーン $… twitter.com/i/web/status/8…

— 墨汁うまい(BokujyuUmai) (@bokujyuumai) 2017年8月8日 - 18:46

関東は明日9日は危険な暑さに.
予想最高気温は甲府38℃,東京・熊谷37℃,横浜36℃.暑さを我慢したりせず,必ず十分な対策をして下さい.根性で我慢できるような類の暑さではありません.熱中症にマジで気をつけて下さい. pic.twitter.com/LhN44gIt4g

— 荒木健太郎 (@arakencloud) 2017年8月8日 - 18:15

ようやくビットコインはネット業界にも拡がってきた感じがしますね。最近はテクノロジーが難しくなってきてて、いわゆるネット業界の人がついてこれないものが多いですね。

— SHINJI KIMURA (@shinzizm2) 2017年8月8日 - 17:42

昨日放送の”お願いランキング”
今話題騒然!明日誰かに言いたくなる!激アツ動画ベスト6で
ペイモの動画が紹介されたよーーー!! pic.twitter.com/qVP41zR9gF

— わりかんアプリ paymo(ペイモ) (@paymo_life) 2017年8月8日 - 18:03

『NEMberworks』
XEMが打ち上がった記念に一枚。
しがない絵描きですが、暗号通貨界の未来を応援してます。
#イラスト #花火 #NEM #XEM #暗号通貨 #仮想通貨 #ブロックチェーン pic.twitter.com/RTvEYouVAX

— ぷちくん@絵仕事募集中 (@Puchikun01) 2017年8月8日 - 18:47

ワルブレ1話:このアニメ面白すぎるwww
ワルブレ最終話:最後まで最高だ……
マキャヴェリズム1話:なんだこのクソアニメ
マキャヴェリズム最終話:ありがとう…本当にありがとう……
異世界スマホ1話:なんだこれ…なんだこれ……
異世界スマホ現在:カミアニメダ……アガメヨアハハオホホ

— Mistir (@mistclast) 2017年8月8日 - 18:41

2021年2月には約1100万円? ビットコインの価格は「ムーアの法則」に従っていた(Business Insider Japan)
newspicks.com/news/2420731

— NewsPicks (@NewsPicks) 2017年8月8日 - 19:21

ニッケイ、4hBM。これがレンジだ、って感じ。 pic.twitter.com/ptLHXItJ3E

— マタドール (@FXtradenote) 2017年8月8日 - 22:13

この流れホント草草の草 pic.twitter.com/WZx2xcoSU4

— うろぼろす(27)@筋トレ減量開始勢 (@oroboros_27) 2017年8月6日 - 11:59

【来るべき時代に備えて1】
ビックデーターによる情報分析・分類、かつセンサーによる認識、それに付随する作業etc.はAIが得意とする能力である。pic.twitter.com/Cqx8jCEJQ8

— 戸田 直人 (@naototd) 2017年8月8日 - 22:10

BTCJPY、4時間足。やはり上方ブレイク失敗。どこで押し目をつけるかな。 pic.twitter.com/ryZDPhgR7p

— マタドール (@FXtradenote) 2017年8月8日 - 22:24

ドル円の強弱指数。ドル円の売りはもう終盤戦。 pic.twitter.com/C2ttBP16fz

— 103steps (@103steps) 2017年8月8日 - 22:17

$BTCUSD、月足。ログスケール。このトレンド・ラインだと、2021年には10万ドルなんだな。 chart jp.tradingview.com/x/ttKSqYWk/ via tradingview.com

— マタドール (@FXtradenote) 2017年8月8日 - 22:40

$FXBTCJPY、4hBM。これは調整に過ぎないだろう。適当なところまで押して、4hスクィーズしてから再開なんだろうと思う。 chart jp.tradingview.com/x/SlApSaK1/ via tradingview.com

— マタドール (@FXtradenote) 2017年8月8日 - 22:44

それまで待つ。

— マタドール (@FXtradenote) 2017年8月8日 - 22:45

こ れ は !w #COMSA twitter.com/pesuke_jp/stat…

— トレスト☠テクニカルアオリスト (@TrendStream) 2017年8月8日 - 19:57

Waves気になるひと必見です。

暗号通貨の成長はロングスパンです。
気長にLeake Proof of Stake(LPoS)と
Airdropで日々の生活に潤いを(笑)

XRP(波紋)、Waves(波)・・・水属性多い twitter.com/nils00000/stat…

— ぺんぎん (@P0jE9Eoi9e2LBAV) 2017年8月8日 - 20:45

$FXBTCJPY、4hBM。押し目としては日足+2σ&4hセンターライン辺りの可能性が高いかな。37万円台。4h-2σまで行くかな? chart jp.tradingview.com/x/ezjKlUUS/ via tradingview.com

— マタドール (@FXtradenote) 2017年8月8日 - 22:57
          Comment on The emperor’s new chains – seeing through the Blockchain hype by Brian Lewis        
I think it's a bit of a complicated 'yes and no' Some of the hype is just that. Ethereum is currently faster transacationally than BitCoin and transactions are only part of what it does - but I have seen some claims for it that seem hard to justify. Interestingly, there are indications of Ethereum moving from the slow BitCoin style 'Proof of work' to a hybrid model using a lighter (but possibly less secure) algorithm called 'Proof of stake' to add blocks to the chain. There are also state channels that Douglas mentioned, which effectively turn the Blockchain into a way of 'locking' a record or state which participants can then change and update quickly outside of the blockchain until the new state is agreed among the parties when it is 'locked' again by writing to the blockchain. This has it's own complications but is certainly interesting. With regard to this and Ethereum - Raiden Network is certainly worth Googling So in short, transactionally Ethereum at the moment is based on what BitCoin is doing and suffers from the same scale issues, fixing those still seems to involve the usual suspects of reduced consensus or moving transactions off the blockchain.
           [ANN][BUCKS]SwagBucks        
Launch Date: Wed, 09 Dec 2015 04:35:09 GMT

No premine. No IPO.



SwagSociety.me Forum Payouts:





Specifications

Proof of work

  • Algorithm: scrypt
  • Block reward: 1 BUCKS, no halving
  • Max height: 493,077 (Approximately 1 year, after this network will not accept PoW)

Proof of Stake
  • PoS without coin age
  • Max reorganization depth: 500 blocks
  • Block time: 64 seconds
  • Difficulty retarget: every block
  • PoS Reward: 1 BUCKS
  • Min transaction fee: 0.0001 BUCKS
  • Fees are paid to miners
  • Confirmations: 10, maturity: 50
  • Min stake confirmations: 50
  • P2P port: 1337, RPC port: 1338




         WALLET        SOURCE         BlockExplorer



Alternative Windows Wallet Host




POOLS




EXCHANGES





FAUCET





SOCIAL





GIVEAWAY




swagbucks.conf[/list][/list]

Code:
addnode=45.32.235.3
addnode=103.253.43.162
addnode=192.99.62.23
addnode=91.134.233.254
addnode=107.181.152.219
addnode=107.181.152.217
addnode=107.181.152.221
addnode=107.181.152.1
addnode=59.100.29.2
addnode=104.223.1.10
addnode=104.223.1.109
addnode=5.189.144.97

          Coin minting: great concept; high technical entry barrier        
First there was mining. Then there were ASICS. And then, someone came up with this brilliant new way for people to “mine” new coins with far less computing power. This method became known as proof of stake (POS). The concept … Continue reading
          What to do before 1st August - sell $BTC in July and go away        

@BernardLunn wrote:

ye olde market mantra was sell in May and go away. Given what happens on 1st August, the cyber equivalent is sell in July and go away.

I Am Not A Financial Adviser (IANAFA). Do your own research.

To new investors - just wait. It is like betting on a country while a civil war is raging. You may get it right but the risks outweigh the upside. Also unless you can do what is suggested below, don't even think about it.

To long term bitcoin holders - get all bitcoins off external services and keep your private keys under your own lock and key. This is like physical gold in your own safe.

To short term speculators - trade in Litecoin, it is a good bet against bitcoin working out its problems. It is only a short term trade because as soon as Litecoin scales it will hit the same problem.

To long term speculators - buy $ETH in the hope they will get Proof Of Stake right. Lots of fundamental risk, but POS could be a better model than POW.

All this says the bear market in $BTC is not over and we wait for capitulation.

Posts: 1

Participants: 1

Read full topic


          5 reasons Why I am economic Bitcoin Maximalist        

@BernardLunn wrote:

5 reasons Why I am economic Bitcoin Maximalist
Not a moral Bitcoin Maximalist. I don't say buying Bitcoin is any better for the world. Just that Bitcoin will be better than Altcoins as an investment. I said investment, meaning over the long term (plenty of short term trading opportunities in Altcoins)

One. Brand and network effects. Step outside the cryptoverse for a moment. Have any trouble explaining Bitcoin to a newby? Try Ethereum. Try hundreds of Altcoins. Building a crypto product/service? Building for Bitcoin is a no-brainer. Which Altcoin do you invest your R&D budget into?

Two. Not making any more of it. People fed up with money printing like land, gold...and Bitcoin. A big newbie question, but how can we believe "they" won't make more Bitcoin? Now ask that question of every Altcoin.

Three. Copy that. Sidechains will allow entrepreneurs to copy any feature of a cool Altcoin. Like Smart Contracts? Use Rootstock. Altcoins as a sandbox for experiments are a "good thing". As a donation to the community that is cool, as an investment thesis less so.

Four. Lightning Network. Sure we will also have Raiden on Ethereum. Raiden as an Enterprise IT tool is great, but that is very different from a true alternative currency for mainstream use; for that, see 1.

Five. Flight to safety from both directions. Coming from Fiat, Bitcoin is an Anti Fragile crash protection bet. Coming from Altcoins, Bitcoin is safe haven while still believing in Crypto. If you made millions in an ICO, where do you put your stash? No, really.

Ethereum is a wonderful technology innovation. It will be used by big corporations, but so what? If Proof of Stake really works, Ethereum could become a true public alternative currency because Proof Of Work is expensive. But that is like saying if we can easily transport solar energy we can get off fossil fuels - easier said than done. Casper in Etherum is still in development. Watch this space, this is a wild card.

Posts: 1

Participants: 1

Read full topic


          Beyond Bitcoin - 6 - A New Direction for Bitcoin?        


In this hangout session, Stephen Reed presents his proposed reengineering of Bitcoin, Cooperative Proof Of Stake. Dan Larimer and others join the conversation to have their questions answered. CPOS is a fresh solution to the problems Bitcoin faces which maintains what remains of Satoshi's social contract while dramatically improving the efficency of the ecosystem.

CREDITS
Music provided by Csus. Check them out on Soundcloud.
Content provided by Stephen Reed - https://bitcointalk.org/index.php?topic=584719.0, https://bitcointalk.org/index.php?topic=366214.0
The recording of the Weka courtesy of Department of Conservation - http://www.doc.govt.nz.
Any questions or comments? Emailbeyondbitcoinshow@gmail.com.
Check out beyondbitcoin.fm for more material and recordings of developer hangouts
          Beyond Bitcoin - 5 - Delegates and Forgers        
This weeks episode features Dan Larimer of Invictus Innovations discussing the shift from Proof Of Work to Delegated Proof Of Stake and the thought process behind the change. We go on to discuss pretty much everything else going on in the development of the bitshares platform. It was a great opportunity to tie up all the loose ends I could think of and Dan was happy to oblige.

Then a fellow named Ian with the deepest knowledge of NXT of anyone I've met does pretty much the same thing. We began with Transparent forging and the scope of the interview just widened from there to cover the value of Javascript as a language, some of the frankly astonishing capabilities being developed in the NXT ecosystem and even NEM, a fork of NXT with aspirations of its own!

CREDITS
Music provided by Csus. Check them out on Soundcloud.
Content provided by Dan Larimer - www.bitshares.org, and Ian - www.nxtcommunity.org.
The recording of the Bellbird courtesy of Department of Conservation - http://www.doc.govt.nz.
Any questions or comments? Email beyondbitcoinshow@gmail.com.
Check out beyondbitcoin.fm for more material and recordings of developer hangouts
          How to mine Peercoins        
Peercoin Mining Package

(user and password = crypto)

I've included here three folders: two with the necessary files to start mining Peercoins right away and one more to mint them through Proof of Stake (only if you already have some!). Let's start with the mining part. Update 1, 15 December, 2013: If after downloading the file you see it has no extension, append .zip to its name or open it as a .zip file.

If you've never mined Peercoins before, you can follow these steps to test your hardware:


- If you want to mine Peercoins with your CPU, double click on the file "MineWithCPU.bat" from the folder "Mine Peercoins with CPU". If your hardware can handle it, your computer will begin mining Peercoins for a test worker I've set up at the mining pool Coinotron. It could take hours before you get a share though. Mining Peercoins with your CPU isn't effective, but you can experience how it works by executing this file.




- If you want to mine Peercoins with your GPU, double click on the file "MineWithGPU.bat" from the folder "Mine Peercoins with GPU". If your hardware can handle it, and the miner I've included recognizes correctly the graphical card you've got on your computer, it will begin mining Peercoins for another test worker I've set up at the mining pool Coinotron. It could take minutes before you get a share though. Mining Peercoins with your GPU is far more efficient than doing it with your CPU, but still not good enough in a world where ASICs made specifically to mine coins using a SHA-256 algorithm (and Peercoin qualifies) reign supreme. You can experience how GPU mining works by executing this file though.




Now that you have tested your hardware and know you can mine Peercoins correctly, you may join a mining pool and change the name of my workers and the URL of Coinotron which you can see if you edit the files "MineWithCPU.bat" and "MineWithGPU.bat". Write instead the names of the workers you created on your pool of choice and its URL:port so as you can mine Peercoins for yourself (this URL:port information is given to you when you make an account on a mining pool).

If you don't know how to join a mining pool, read (it's for Bitcoin, so don't follow it, just READ it, since all pools work the same way) my tutorial on this topic: How to Join a Mining Pool

If you want to mine Peercoins solo (which is not recommended, because it's almost impossible that you ever find a block on your own), follow these steps:

- Copy the file "ppcoin.conf" provided in this package to your Peercoin working directory (most likely "C:\Users\YOURNAME\AppData\Roaming\PPCoin"). Now navigate to the directory where you installed Peercoin (most likely "C:\Program Files (x86)\PPCoin\") and execute ppcoin-qt.exe. Wait until you are fully synchronized with the network.

- Execute the file "SoloMineWithCPU.bat" from the folder "Mine Peercoins with CPU", the file "SoloMineWithGPU.bat" from the folder "Mine Peercoins with GPU" or both of them. Your computer resources will begin mining Peercoins. It could take you a LOT of time before you find a full block. Or maybe you are extremely lucky and find one in one minute. It's impossible to know!




Now let's have a look at that mysterious third folder...

This cryptocoin is designed so as you can mint Peercoins through another method called Proof of Stake (PoS). I won't explain here how it works. I'll simply tell you that you can earn an interest of 1% per year on your current Peercoin balance by activating it (this means you must already have some coins in order to earn something!). Proceed as follows to take advantage of this option:

- Execute ppcoin-qt.exe (from "C:\Program Files (x86)\PPCoin\"). Wait until you are fully synchronized with the network. Encrypt your wallet through the Options menu. Choose a strong password, but not so much that you'll forget/lose it, because in that case you'll lose all your coins. Close the program.

- Copy the file "ppcoin.conf" placed inside the folder "Mint Peercoins with PoS" provided in this package to your Peercoin working directory ("C:\Users\YOURNAME\AppData\Roaming\PPCoin").

- Copy the file "MintWithProofOfStake.bat" placed inside the folder "Mint Peercoins with PoS" provided in this package to the directory ("C:\Program Files (x86)\PPCoin\daemon\").

At this point you have your computer configured to mint Peercoins through PoS. Now every time you want to activate this method do the following:

- Execute ppcoin-qt.exe (from "C:\Program Files (x86)\PPCoin\"). Wait until you are fully synchronized with the network.

- Execute "MintWithProofOfStake.bat", which you put inside "C:\Program Files (x86)\PPCoin\daemon\" one moment ago. A cmd prompt will ask you for the password of your wallet. Write it there and press Enter. The cmd prompt will close.

- If you did everything correctly, there will be no warning at the bottom left corner of your ppcoin-qt program window and if you hover your mouse over the lock icon at the bottom right a message will appear stating that your "Wallet is encrypted and currently unlocked for block minting only" (give the program a minute for making these changes before you assume it's not working).




Now all you have to do is leave the program open for as long as possible. On average, you'll get 1% of your current Peercoin balance each year the coins are sitting on your wallet, untouched.


Note 1: the miner provided for CPU mining is Pooler's CPUminer 2.3.2 and the one for GPU mining is CGMiner 3.7.2. Other miners exist which might suit your hardware better and increase your mining speed.

Note 2: some antivirus programs consider all cryptocoin miners malware. They are not! The problem is that some bad people included them inside other legit packages of software so as they would mine for them on other computers without their owner's knowledge. When they were found, antivirus companies labeled them as malicious software.



          Peercoin / PPCoin        

Symbol - PPC
Algorithm - SHA-256, Proof of Stake
Total Coins - Undetermined (check current total)
Block Time - Between 10 minutes and 2 hours
Coins per Block - Varies with difficulty (check current reward)
Coins per Block are halved for each 16x increase in the network
Difficulty Retarget on every block
First Block mined on August 19, 2012
Status - Alive
Official Website
Download Windows Client (May not be the latest version!)
Download Linux Client (May not be the latest version!)
Mac Client not available
Source Code
Download Mining Package (Read the README.txt!)
Profitability Calculator
Mining Pools - Coinotron | D7 Pool | Fuzzypool
Exchanges - Vircurex | Cryptsy | BTC-e
Block Explorer
Forum
Announcement Thread
Reddit
IRC Channel
Faucets / Free Peercoins - None
Shops - coingas
First cryptocoin to implement the Proof of Stake minting algorithm