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    Home Unlabelled BTC MAJOR unknown miner mining to qq4q* is poolin.com's BTC pool

    BTC MAJOR unknown miner mining to qq4q* is poolin.com's BTC pool

    September 03, 2019

    BTC MAJOR unknown miner mining to qq4q* is poolin.com's BTC pool

    MAJOR unknown miner mining to qq4q* is poolin.com's BTC pool

    Posted: 03 Sep 2019 12:06 AM PDT

    TL;DR:

    • poolin.com's BCH pool signs their coinbase with 'poolin.com'
    • poolin.com's BTC pool mines BCH when profitable with coinbase string '//mm'
    • That is, the unknown miner with ~600% the average BCH hashrate is poolin.com

    For weeks I've noticed an unknown miner mining 5..7 blocks in sequence once BCH turned profitable (for instance, blocks 598583-598588 right now). Their coinbase string is just '//mm...' ('mm'=merged-mining signature). What surprised me is their hashpower, considerably larger than btc.top's which is known to move all their 6EH/s to BCH every now and then. I've seen this unknown miner repeatedly mining 6 300G-diff blocks in a 10 minute window, which amounts to ~18% of the total SHA256 hashrate. Because of them, BCH has lately had many long periods with no blocks, many more than variance alone would explain, followed by a burst of 10-20 blocks in just a few minutes. Yesterday I noticed they mined a ton of 1MB blocks when the mempool was full, which really frustrated me: it's not like they were using the default config, they actually chose a smaller one!! How could we contact an unknown miner to ask them to raise their config? So today I did some digging...

    There are just a couple of pools that could be doing this, since 18% of the SHA256 hashrate is a lot. First I noticed their coinbase had nLockTime!=0, which is kind of unique. On BTC only f2pool and poolin showed this behavior. Also, whoever 'unknown' is, it's certain they have 3 nodes running on their servers: btc, bch and the merged-mined coin node. What's interesting about merged-mining is that you have to broadcast the auxpow structure when you mine a block, which contains a coinbase template of the original coin. So I fired up a namecoin node and looked for auxpow structures whose coinbase mined to qq4q*. I found many blocks and they mined namecoins to 2 addresses. Then I looked for all namecoins mined to these addresses and printed out the auxpow coinbase scriptsig: for both addresses they showed either '//mm' or '/poolin.com/', depending on the nBits (bch or btc blocks), and nothing else. Later, I found Checksum0's tweet from yesterday with even more evidence pointing to them: https://twitter.com/checksum0/status/1168479702714994689

    I don't know exactly why they avoid signing their coinbases, but I suspect it's because their btc pool is supposed to be btc only. Can someone with a twitter account reach out to them? C'mon... 1MB blocks... really??

    submitted by /u/rinexc
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    Bitcoin Cash grows in Indonesia, Russia and Japan; Exchange.Bitcoin.com to go LIVE soon - (Nice to see positive external BCH news)

    Posted: 02 Sep 2019 07:36 PM PDT

    This guy just learned a little bit more about the tyranny of centralized payment processing

    Posted: 03 Sep 2019 01:32 AM PDT

    community funding: "CashFusion, Jonald Fyookball's next step in his world domination for Bitcoin Cash privacy requires 10,000$ to develop."

    Posted: 03 Sep 2019 12:01 AM PDT

    CashFusion provides high levels of privacy via a flexible scheme using anonymous, trustless coordination for Bitcoin Cash users. #Winning

    Posted: 03 Sep 2019 12:24 AM PDT

    Peter R. Rizun: "A value of the Bitcoin Cash community is unity in our goal to scale BCH to electronic cash all 8 billion people in the world can use. This goal unites us, despite a diversity of opinions on the best technical path forward and a diversity of node implementations. Unity > Division"

    Posted: 02 Sep 2019 10:48 AM PDT

    Keene, NH beats Townsville, AUS at BCH business acceptance per capita, but not Ljubljana, Slovenia - Where does your city rank?

    Posted: 02 Sep 2019 10:36 PM PDT

    Crypto Needs Less Government Regulation – Not More - Bitcoin News

    Posted: 02 Sep 2019 11:53 PM PDT

    Gabriel Cardona: “@PeterRizun and @GAndrewStone of @BitcoinUnlimit are incredibly valuable assets to the #BitcoinCash community. Peter's "Segwit coins are not Bitcoins" talk was one of the primary sources of info which helped me decide to focus on #BCH full-time.”

    Posted: 02 Sep 2019 01:18 PM PDT

    The *actual* problem with yesterday's BCH hiccup is not the backlog itself. It's that miners were incompetent back in 2015 by running "default software" (core) and they are running "default software" again. There is no thinking process or decision-making involved. Did we learn anything since 2015?

    Posted: 02 Sep 2019 02:05 PM PDT

    Looking design projects/jobs in crypto/blockchain

    Posted: 03 Sep 2019 02:05 AM PDT

    My name is Alex, 29, living and working in St. Petersburg, Russia.

    In the cryptoindustry since 2013 — developed corporate identity and website for CoinTelegraph.

    The portfolio includes more than a hundred companies that are successfully operating now.

    In 2017—18 at the IСO boom I was engaged in packaging marketing of new startups.

    Now I am interested in finding projects of any duration/occupation.

    Crypto Accepted.

    Portfolio

    Branding portfolio

    submitted by /u/aleksual
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    Privacy, Tokens,Usability, Bitcoin Cash is competing on all fronts!

    Posted: 02 Sep 2019 11:04 AM PDT

    Blockstream CEO is upset that his Twitter trolls/astroturfers got suspended ��

    Posted: 02 Sep 2019 11:13 AM PDT

    Crescent Cash v1.7.5 has been released for both Android and Desktop. This update primarily makes broadcasting transactions faster and more reliable!

    Posted: 02 Sep 2019 09:57 AM PDT

    Hey everyone!

    Late last night I released v1.7.5 of Crescent Cash for both Android and Desktop.

    This update primarily focuses on transaction broadcasting. It now no longer broadcasts transactions via bitcoincashj, but instead uses /u/imaginary_username's REST API (https://rest.imaginary.cash). This will make transactions broadcasting faster and more reliable.

    On top of this, there have been quite a few UI fixes and internal fixes for both Android and Desktop.

    Coming in future release:

    • The ability to connect to Cash Account API servers, block explorer API servers (this is part of my Cash Account integration), and imaginary's REST API through TOR.

    Download: https://crescent.cash/download

    submitted by /u/_pokkst
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    Bitcoin Is Back Above the $10,000 Key Point

    Posted: 03 Sep 2019 01:58 AM PDT

    Observation: Core Maximalists are an Attack on Intelligence ...

    Posted: 03 Sep 2019 12:17 AM PDT

    Analysis of yesterday's backlog for discussion

    Posted: 02 Sep 2019 05:04 AM PDT

    Scammers are getting lazy!

    Posted: 02 Sep 2019 06:47 AM PDT

    Welp, Argentina's screwed. Opportunity for crypto to make headway among Argentinians.

    Posted: 02 Sep 2019 10:24 AM PDT

    Local.bitcoin is currently the best example of a Non-Custodial Financial Service on #BitcoinCash featuring:

    Posted: 02 Sep 2019 11:34 AM PDT

    • Non-custodial blind escrow
    • End-to-end message encryption
    • Messaging/Financial forward secrecy
    • Signature system
    • Identity verification
    • Simple dispute resolution

    Source: https://twitter.com/cgcardona/status/1168592530507587587?s=21

    submitted by /u/MemoryDealers
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    Can I view the Marco Coino map on a non-mobile device?

    Posted: 02 Sep 2019 06:22 PM PDT

    Is there a URL where I can pull up the Marco Coino map on any old web browser? Thanks in advance.

    submitted by /u/FTL_Ian
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    The first SatochipWallet Bitcoin Cash hardware wallet are on their way !

    Posted: 02 Sep 2019 12:30 PM PDT

    Is there a way to upload a picture for the icon of your created SLP token?

    Posted: 02 Sep 2019 06:41 PM PDT

    I created a token and want to have a custom picture like spice has. Is there any way to do this? Or only for popular tokens on exchanges?

    submitted by /u/THICCJeeves
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    Current best service to convert fiat to BCH

    Posted: 02 Sep 2019 03:18 PM PDT

    Hi folks. I'm trying to buy some more BCH and am looking for the best exchange rate and fees with limited sharing of personal details. Things have changed a lot since I last did this - I have previously used Coinbase but they now now require a photo ID and every other personal detail to withdraw coins. Too invasive for me.

    I'm okay with exchanges that require a name, phone number, and bank account or CCN. I took a look at buy.bitcoin.com, but their exchange rate is notably worse to begin with, and they have 7.5% in fees (unclear if this is built into the exchange rate). What's the go-to option these days?

    EDIT: I took a deeper look into buy.bitcoin.com and besides high fees, their payment processor also requires excessive information gathering - they just don't tell you that up front. Looks like local.bitcoin.com is my only option.

    submitted by /u/freedomOfSpeech12
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    Yesterday the price on Bitfinex spiked to $374 on very low volume despite there being supposedly thousands of BCH in the orderbooks for sale. Are the sell orders real or what happened?

    Posted: 02 Sep 2019 01:37 PM PDT
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