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Saturday, 2 February 2019
Jack Dorsey Says “the Internet Will Have a Native Currency,” But Which One? This article was originally posted on Trustnodes - a trusted site covering numerous topics related to cryptocurrency and a great selection of news and editorial [...]
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Canadian Exchange Insolvent After CEO Dies With Keys to $145M of Cryptocurrency This article was originally posted on Bitcoin News - delivering news related to the Bitcoin network from multiple locations around the world. For more follow [...]
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January 2019 Lightning Network News roundup
Hello Coiners,
Happy February.
I wanted to post a roundup of all the noteworthy news this month related to lightning. It's hard to remember everything that happens over a month in this exciting space and the pace of lightning development in the ecosystem seems to be picking up.
I essentially did a quick scrape of Reddit and Twitter for the last 30 days of all LN news and picked out some goodies.
If you have any feedback on the format, sources, or if I should link to reddit threads for discussion instead of direct links to article (when possible) please let me know in the comments.
Also, if I missed any particularly awesome stories, please comment or DM me and I'll add it to the list for posterity.
If you guys enjoy this I will try to keep doing it every month.
Enjoy.
Lightning Network capacity passes 600 BTC
C-Lightning v0.6.3 is now released “The Smallblock Conspiracy”
Casa HODL creates a browser extension for easy payments.
Proof of concept in-game unlocks using Lightning payments
Spontaneous Lightning Payments using only your Node ID (without invoice) are almost here!
Bitrefill releases Thor: A Lightning Network Channel-Opening Service
From #reckless to Wumbology: Lightning Network's Infrastructural Build Out - The Block
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Crypto Thief Indicted in New York’s First SIM Swapping Prosecution This article was originally posted on Cointelegraph - an independent publication covering cryptocurrency, the blockchain, decentralized applications, the internet of finance and the next gen [...]
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How I Lost My Home in An Earthquake And All My Life-savings on a Cryptocurrency Exchange Called Bittrex Due To U.S. Sanctioning Normal Iranian Citizens
TL;DR: I lost my house in an earthquake and also all my crypto on an exchange because U.S. government sanctioned normal Iranian citizens like me and now I'm homeless.
You can read the full story here on my blog:
LINK TO FULL STORY ON MY MEDIUM BLOG
For those who might say you shouldn't have held your Bitcoin on an American exchange: we couldn't buy hardware wallets back then because Iran was and still is sanctioned. Online wallets were mostly following U.S. laws too. We contacted Bittrex (evidence is posted in my blog post) a few times and they said they have no problem with Iranians using their exchange and they didn't have any lines prohibiting Iranians from using their exchange in their TOS. So Bittrex appeared to be the safest option for us since it was reputable back in 2017, but alas!
[link] [comments]
source https://www.reddit.com/r/btc/comments/ame81n/how_i_lost_my_home_in_an_earthquake_and_all_my/
BCH faucets
- https://free.bitcoin.com
- https://www.freebch.cash - By alwaysAn0n
- https://cointext.io - "CASH" command
- https://bchin.cash - By @toomuch72 (Twitter)
[link] [comments]
source https://www.reddit.com/r/btc/comments/amenld/bch_faucets/
Beware of subtle fud and propaganda! BTC Core trolls behave exactly the same way, like when they insinuated that BCH's 0-conf video was fake! Monero and Dragon's Den share tactics/techniques/personnel and they are ATTACKING coins that fulfill Satoshi's vision
Sooooo... BTC hashrate, down over 40% over the last few days.
Edit: looks like a problem with fork.lol, never mind :D
I’ve not seen any posts addressing this so far, surely worth keeping an eye on.
[link] [comments]
source https://www.reddit.com/r/btc/comments/ameuh7/sooooo_btc_hashrate_down_over_40_over_the_last/
SEC to Gather Blockchain Data For Major Cryptos This article was originally posted on Trustnodes - a trusted site covering numerous topics related to cryptocurrency and a great selection of news and editorial [...]
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Twitter CEO to Joe Rogan: I Think Currency of The Internet Will Be Bitcoin This article was originally posted on Bitcoinist - one of the leading sources for information about Bitcoin, digital currency and blockchain technology. With one of [...]
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Germany’s Second Largest Stock Exchange Launches Crypto Trading Mobile App This article was originally posted on Ethereum World News - an independent news provider covereing Ethereum, Bitcoin, Ripple, Litecoin dApps, start-off ICO’s and the whole Blockchain [...]
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The Daily: Zebpay Launches in 5 European Markets, Coinpulse Enters ‘Indefinite Maintenance’ This article was originally posted on Bitcoin News - delivering news related to the Bitcoin network from multiple locations around the world. For more follow [...]
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Nvidia Made Billions From Ethereum Crypto Mining Says Analyst This article was originally posted on Trustnodes - a trusted site covering numerous topics related to cryptocurrency and a great selection of news and editorial [...]
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$190 Million in Crypto Possibly Lost at Canada’s QuadrigaCX Bitcoin (BTC) Exchange This article was originally posted on Ethereum World News - an independent news provider covereing Ethereum, Bitcoin, Ripple, Litecoin dApps, start-off ICO’s and the whole Blockchain [...]
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Crypto Payment Processor CoinGate Adds Support for Ripple’s XRP This article was originally posted on Cointelegraph - an independent publication covering cryptocurrency, the blockchain, decentralized applications, the internet of finance and the next gen [...]
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My lightning node is online
I've finally managed to set up my first node. Join me:
03b6b001397ff87d9640ff5186474d884c04b071ae1238ef47f056218bcc355135@207.154.221.46:9735
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Ethereum Developers Spend an Hour on Deciding How to Decide This article was originally posted on Trustnodes - a trusted site covering numerous topics related to cryptocurrency and a great selection of news and editorial [...]
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CoinGate Enables XRP Payments for Merchants This article was originally posted on Ethereum World News - an independent news provider covereing Ethereum, Bitcoin, Ripple, Litecoin dApps, start-off ICO’s and the whole Blockchain [...]
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Wyoming Senate Passes Bill Recognizing Cryptocurrency as Money This article was originally posted on Bitcoin News - delivering news related to the Bitcoin network from multiple locations around the world. For more follow [...]
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‘Blockchain’ Being Used by London Rail Company to ‘Incentivize Changes in Passenger Behavior’ This article was originally posted on Bitcoinist - one of the leading sources for information about Bitcoin, digital currency and blockchain technology. With one of [...]
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Blockchain Technology In Healthcare And Education Sector
Blockchain technology-based EyePay™ Phone is designed to authenticate and authorize not only patient identification but also their information within a few seconds. The United Nations Agencies has already used IrisGuard’s proprietary EyePay™ mobile technology in order to prevent human trafficking. This mobile technology will be functioned on the Patientory Inc software, powered by the PTOYNet blockchain and expanded in the healthcare […]
The post Blockchain Technology In Healthcare And Education Sector appeared first on OWLT Market.
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What your biggest failure? How’d you come out on top?
In life, most people know that failure is a part of the process of accomplishing success. And that the greatest failures lead to your greatest successes.
So I’m curious here to hear from others, and start a discussion amongst us. Hear some other good stories. What do you think was one of your biggest failures in relation to Cryptocurrency, and why do you think of it as a failure?
What did you do to turn that event into a success or at least learn from it to prevent a future failure?
To get things started, I’ll tell one of my own stories.
I’ve been living of Cryptocurrency for years now. A few years back I had a Wells Fargo I used to sell my Cryptocurrency for some cash when I was unable to spend it directly for things I needed to continue living. At a certain point of time, I was starting up one of my new Cryptocurrency business ventures and needed to sell some of my coins as the funds were needed to be payed for licensing, lawyers, etc etc. No way to pay with Cryptocurrency.
Well, of course the sum was a large amount and… Wells Fargo decided to close my account with about $15,000 in cash on it due to the couple large cash deposited from sales and Cryptocurrency references. So my mistake was two fold. 1, not understanding large amounts of deposits in cash in a short term period could get my account shut down. 2… as I received the portion sales I left the funds in the account not expecting any issues, so the full amount of the money became locked up with Wells Fargo instead of only a portion of it.
My funds spent 3 months in the hands of Wells Fargo, with barely any information on their end. I spent a few thousand $$ on lawyers to try and connect with Wells Fargo and explain everything show them what its for and from. Wells Fargo gave no shits.
So, 3 months of my funds being held, in a tight situation with my monthly expenses even due to everything being closed off, rent screwed, everything. My business plan fell in a hole due to not having the funds as needed. It was a real jam and I lost more then 3x the amount of money in the end that Wells Fargo held from my account. “Wells Fargos explanation at best was “raised flags, could be fraud or money laundering, we’re allowed to close accounts at our discretion.”
- the funny part is shortly after this all massive amounts of the Wells Fargo lawsuits and fraud started coming out. Irony right.
Afterwards, I took the experience and altered my business plan idea, turned my problem into the business. I then created a way to pay for the things I needed to pay for without Cryptocurrency, but now be able to pay for with Cryptocurrency. Solving my problems and making me an income at the same time.
Can never bank with Wells Fargo again, but took the failure and made it a success.
So, what about you guys? Can be any type of story, what was your failures regarding Cryptocurrency, something you didn’t learn fully that caused you a problem, a mistake you made, whatever it may be? I’d love to hear from everyone else! We can all learn from everyone else's failures too.
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Is it possible to run 1 LN node on 2 different machines?
I have been running a LN node for about a month now. During this period, a situation occured where the machine the node was running on froze and it took me ~3 days before I noticed and got it back online and in sync.
In the meantime, my counterparties could have closed my channels with an unfair balance and there was nothing I could have done about it. I realise I got off easy, but this got me thinking.
Would it be possible to run an exact copy of my current node on another device as a fail-safe? Or otherwise, run an instance of LN which monitors only the state of my channels, without routing any payments?
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Introducing SLP SDK v1!
SLP SDK V1.0.0 is live!
SLP SDK is a fully featured javascript framework powered by BITBOX. Everything you need to easily issue, spend or trade your own token.
Simple Ledger Protocol is simple, robust and extensible. All transactions are 100% on the blockchain for full auditability by any party. The first and currently only BCH token system to support light wallets. You can use multi signature addresses and other Bitcoin script features with SLP tokens.
SLP SDK is a superset of BITBOX SDK so you get 100% of the BITBOX functionality you're used to out of the box.
v1 includes
List tokens
* List all tokens
* List single token by token id
List Balances
* List all token balances for an address
* List single balance for address by token id
Address
* SLP addr Conversion
* Cash addr Conversion
* legacy addr Conversion
* isLegacyAddress
* isCashAddress
* isSLPAddress
* isMainnetAddress
* isTestnetAddress
* isP2PKHAddress
* isP2SHAddress
* detectAddressFormat
* detectAddressNetwork
* detectAddressType
* details
* utxo
* unconfirmed
* transactions
Create token
* Create new token
* Pass minting baton
* Mint more tokens
* Send tokens
Over 550 passing tests. Full documentation: https://developer.bitcoin.com/slp
TOKENIZE ALL THE THINGS
[link] [comments]
source https://www.reddit.com/r/btc/comments/amczgk/introducing_slp_sdk_v1/
One Man Accused of Holding Up $1 Billion Worth of Bitcoin and BCH This article was originally posted on Trustnodes - a trusted site covering numerous topics related to cryptocurrency and a great selection of news and editorial [...]
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Blockchain Research Institute Aims To Create Geneva Blockchain Center Of Excellence
Blockchain Research Institute (BRI) aims to create the Geneva Blockchain Center Of Excellence around the globe and this institution has partnered with Wiskey International Holding Ltd. The business model of the Geneva Blockchain Center Of Excellence is designed to help Blockchain startups along with promoting their technologies and encouraging a relationship between the public, private and academic […]
The post Blockchain Research Institute Aims To Create Geneva Blockchain Center Of Excellence appeared first on OWLT Market.
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Today we completed 411 days of Bitcoin bear market, we match the bear market 2013 to 2015
Today is a party day, haha
Tomorrow we will beat the WORLD record and we can enter the Guinness book
I have waited a long time for this, but I am sure that I am not alone in this
Congratulations to all of you who have continued here, your strength and perseverance are too much, keep fighting in pursuit of your dreams, only you know what you want and can achieve, do not give up, persist, together we go beyond, stay strong warriors.
Hold on, stay strong, till the end not afraid of dying.
[link] [comments]
PSA: Electrum and Electron Cash servers are being Sybiled -- AGAIN!
If you're running the SPV client Electrum (for Bitcoin) or Electron Cash (for Bitcoin Cash) know that ElectrumX servers are being sybilled (again!).
Presumably the phishers are up to their old tricks of tricking users to install a malware version of their client.
BUT We at Electron Cash have already put countermeasures in place.
MAKE SURE you are running the latest version of Electron Cash. Get it here: https://www.electroncash.org.
The latest version of Electron Cash will:
- Never allow server-side strings to spam you with bogus alerts to download an update
- Allow you to use the "Preferred Server" feature -- the client will only connect to "trusted" servers. If you are running the latest version be sure to turn this on. It's in the network settings:
So get the latest 3.3.5 Electron Cash, and turn "Preferred Servers only" on, and have peace of mind. :D
EDIT: Words. Typos.
[link] [comments]
source https://www.reddit.com/r/btc/comments/am88lh/psa_electrum_and_electron_cash_servers_are_being/
The Kraken team has a massive opportunity to offer BCH/CAD pairing! Let’s show @krakenfx how much the #BCH community in Canada would appreciate this! #BitcoinCash |
If you believe that anarchy is NOT the answer, then....
the only other option is to believe that some people get to use violence against peaceful people who haven't aggressed against anyone. There is no middle ground.
Please watch this 4 minute video and ask yourself "when do you think it is ok to aggress against George?".
[link] [comments]
source https://www.reddit.com/r/btc/comments/am8eqa/if_you_believe_that_anarchy_is_not_the_answer_then/
PSA: Warn: I have detected an advanced camouflaged shill spinning up new narrative. Please take note in order to detect such incidents in the future.
This is the post in question:
https://old.reddit.com/r/btc/comments/am2vc3/am_i_really_in_the_minority_in_this_sub_with_the/
I have verified the poster's account and I am sure that he is a (very advanced and well camouflaged) CSW Shill.
My certainty level about this fact: Absolute.
Therefore, the narrative being created here is with very high certainty a fake(spinned/astroturfed) one and the user cannot be trusted to be a honest part of this community.
Please take note in order to more easily detect & neutralize such incidents in the future before they get out of control.
[link] [comments]
source https://www.reddit.com/r/btc/comments/am8inv/psa_warn_i_have_detected_an_advanced_camouflaged/
Am I really in the minority in this sub with the belief that anarchy is NOT the answer?
I mean, call me crazy, but I do not believe that bitcoin's purpose is to overthrow representative government and replace it with a theoretical anarchocapitalist society. But BCH's celebrities, mainly /u/chrispacia and /u/memorydealers , seem to consider bitcoin and anarchy to be inseparable, or at the very least, they see bitcoin as the means to the end that is anarchy.
It can be enough of a headache trying to educate people about bitcoin's use cases as electronic p2p cash. I refuse to also spend time convincing people of anarchy's merit.
Anarchy is becoming synonymous with BCH and r/btc in general, and it is not a good look. Espousing anarchistic principles is a means to this community's isolation, NOT bitcoin adoption.
I'm frustrated, but I feel like there's no way that a majority of silent observers in this sub are anarchists. If so, I think the community has been led astray.
[link] [comments]
source https://www.reddit.com/r/btc/comments/am2vc3/am_i_really_in_the_minority_in_this_sub_with_the/
Bitcoin ABC's "parked blocks" feature allows minority hashrate attackers to cause a permanent chain split with high probability.
BACKGROUND
------------------------------------------------------
In November, Bitcoin ABC introduced "auto-finalization" and "parked blocks" functionality in order to mitigate the risk of 51% attacks.
Roughly, the way auto-finalization works is that after receiving a new block, a node will look back ten blocks prior and mark that previous block as finalized, which means that the node will not reorg past that point without manual intervention. This prevents attackers from double spending with large reorgs, and thus provides some protection for exchanges and the like.
The parked blocks functionality is intended to prevent against medium-length reorgs by adding a proof of work penalty. Specifically, a 4+ block reorg requires double the PoW; a 1 or 2 block reorg requires an extra 1/2 blocks' worth of PoW, and a 3 block reorg requires an extra blocks' worth of PoW. These are approximations, because of BCH's DAA which changes each block, but you can find this implemented in FindMostWorkChain() in validation.cpp.
When these changes were added, there was some discussion on r/btc about how auto-finalization could lead to chain splits because an attacker could mine a 10 block secret chain and broadcast it right at the perfect time that the honest network has broadcast its 10th block from the fork point; however, this is a difficult attack to pull off, and the parked blocks functionality actually makes it such that the attacker would need to mine more like 20 blocks secretly (approximately, because of the DAA), which makes it nearly impossible.
However, I did not see significant discussion regarding the implications of the parked block functionality itself, and the negative way in which it interacts with auto-finalization. Here is my attempt to rectify that, by presenting an attack that could cause chain splits with moderate probability even for attackers with minority hash rate.
ATTACK:
----------------------------------------------------
1) Somehow force a soft-split with the parked chain.
2) Make sure that the soft split continues until both sides finalize a block on their side of the split (possibly via balancing hashpower on both sides of the soft split).
More specifically:
1) Mine 3 blocks before the honest network mines three blocks, and broadcast block 3 when you detect honest block 3 has been broadcast.
2) Mine such that the difficulty/work condition is fulfilled (see step 2 below regarding lowering the difficulty): block1 + 1/2*priv2 + 1/2*pub2 > pub4 + priv4. If this condition isn't met, the attacker can just try to win the split from the next step and get 3-4 block rewards
3) Ensure that each side of the soft split mines block 4 before the other side mines block 5, moving into the double-PoW penalty phase. This may require withholding blocks temporarily if "too far ahead", such that there is a 3vs3 split. Since this could happen, it improves our probability of success compared to the calculations below.
4) Mine at the tip of whichever chain is behind, such that neither side reorgs before finalizing a block on their side of the split. That is, each side must mine 7 blocks w/o being reorg'd. (Must mine 1 before the other mines 4, or 2 before 8, etc.)
--Analysis is for step 4 is complicated and thus omitted below, but this is likely to succeed, and extremely likely to succeed if the network is split close to evenly or if the attacker has substantial hash power.
Analysis:
----------------------------------------------------------
Let x = attacker hash rate; y = main chain hash rate after soft split; z = alt/"attack" chain hash rate after soft split.
-----STEP 1-------------
--Start by assuming the attacker has just mined a block and keeps it secret; then they must win 2 blocks before the honest chain wins 3
--There are 6 possible ways to win: AA, AHA, HAA, AHHA, HHAA, HAHA (A = attacker block; H = honest block.)
Pr[success] = x^2 + 2*x^2*(1-x) + 3*x^2*(1-x)^2
x = 1/20 --> 1.4%
x = 1/10 --> 5.23%
x = 1/4 --> 26.17%
x = 1/3 --> 40.74%
x = 1/2 --> 68.75%
x = 3/5 --> 82.08%
------STEP 2---------------
Ideally, the 4th block for both chains will be of the proper difficulty that would prevent either chain from being reorged by seeing that 4th block, in which case the soft split should persist. This occurs if the following conditions are met:
1) In order to prevent the 4th honest block from reorging our 3 private blocks, we need: privChainWork + 1/2*(privBlock1work + privBlock2work) > mainChainWork
2) In order to prevent the 4th attack block from reorging the 3 public blocks, we need: mainChainWork + 1/2*(pubBlock1work + pubBlock2work) > privChainWork
Note that pubBlock1work == privBlock1work in all cases. Some algebra:
Condition 1 --> priv1 + priv2 + priv3 + 1/2*priv1 + 1/2*priv2 > pub1 + pub2 + pub3 + pub4
Condition 2 --> pub1 + pub2 + pub3 + 1/2*pub1 + 1/2*pub2 > priv1 + priv2 + priv3 + priv4
--> priv1 + priv2 + priv3 > pub1 + pub2 + pub3 + pub4 - (1/2*priv1 + 1/2*priv2)
--> pub1 + pub2 + pub3 > priv1 + priv2 + priv3 + priv4 - (1/2*pub1 + 1/2*pub2)
--> pub1 + pub2 + pub3 > pub1 + pub2 + pub3 + pub4 - (1/2*priv1 + 1/2*priv2) + priv4 - (1/2*pub1 + 1/2*pub2)
--> 0 > pub4 + priv4 - (1/2*priv1 + 1/2*priv2) - (1/2*pub1 + 1/2*pub2)
--> (1/2*priv1 + 1/2*priv2) + (1/2*pub1 + 1/2*pub2) > pub4 + priv4
--> block1 + 1/2*priv2 + 1/2*pub2 > pub4 + priv4
This is extremely likely if the difficulty is decreasing, which can happen on the private chain by mining blocks with future timestamps, and is likely on the main chain as well, since it will have less hashpower than before the fork point.
------STEP 3------------------------
--What is the probability that both chains mine block 4 before the other mines block 5?
--Assume both chains have 3 blocks already and the attacker has no secret blocks. If the attacker successfully mined block 4 already, our chances would be higher, so this is an underestimate.
--The chance of success depends on how much hash is on each side, which we don't know. Here we analyze two possibilities:
1) y = z (attacker's best case);
2) y = 3z (1/4 of the honest hash is on one side, 3/4 on the other)
--For case 1, assume the miner simply shuts off until one side wins a block, and then immediately mines the other side. They could also pick a side to start with, but we ignore that possibility. For case 2, we assume the attacker mines on the minority chain until a block is mined, and switches if the minority chain wins the first block.
Case 1:
Pr[success] = x + z = x + y
x = 1/20 --> 52.5%
x = 1/10 --> 55%
x = 1/4 --> 62.5%
x = 1/3 --> 66.67%
x = 1/2 --> 75%
x = 3/5 --> 80%
Case 2:
Pr[success] = (x+z)*(x+y) + y*(x+z) = x^2 + 2xy + 2yz + xz
x = 1/20 --> 42.41%
x = 1/10 --> 47.13%
x = 1/4 --> 60.16%
x = 1/3 --> 66.67%%
x = 1/2 --> 78.13%
x = 3/5 --> 84%
-----END STEP 3---------------------
EXAMPLE: Attacker has x fraction of the hash rate, and if he successfully finishes step 1, we assume that the difficulty works out in step 2 about half the time (probably a significant underestimate). Assume that each step is independent (not true, and causes an underestimate of success probability). Assume that the soft split that results splits the hash power 3 to 1, as in case 2 above. What is the probability of getting to the final step of the attack? How many initial blocks can the attacker expect to throw out before succeeding, and how long should this take given their hash rate?
x = 1/20 --> 0.3% --> 334 blocks thrown out, 6680 blocks total, 46.4 days
x = 1/10 --> 1.23% --> 82 blocks thrown out, 820 blocks total, 5.7 days
x = 1/4 --> 7.87% --> 13 blocks thrown out, 52 blocks total, 8.7 hours
x = 1/3 --> 13.58% --> 8 blocks thrown out, 24 blocks total, 4 hours
x = 1/2 --> 26.86% --> 4 blocks thrown out, 8 blocks total, 1.3 hours
x = 3/5 --> 34.47% --> 3 blocks thrown out, 5 blocks total, < 1 hour
DISCUSSION
-------------------------------------------
There are tradeoffs between protecting against chain-split attacks and protecting against deep reorgs, and a chain like that of BCH, with minority SHA-256 hashrate, must tread carefully. However, I think I have demonstrated here that there isn't a tradeoff when you have both parked blocks AND auto-finalization - the security assumption of "everything is fine if majority hashrate is honest" is no longer true, because a 33% attacker can cause a far worse outcome than a deep reorg.
That said, unlike with 51% attacks, this particular attack is one that isn't as likely to be profitable for the attacker financially, so it may not be exploited by random Internet bad guys. Also, it would require some more complicated software and is less likely to succeed without some amount of network intelligence, like knowing which nodes are miners or exchanges to target. However, it CAN still be profitable in a number of ways: shorting BCH, low-conf double spends, and/or the possible selfish mining profits that could accrue from a failure at some step of this strategy.
Timejacking may be useful to smooth over some of the parts of the attack by making sure that a timejacked node will view a block as valid/invalid when the rest of the network doesn't, via timestamp manipulation. This can buy the attacker a little bit of time, and "shape" the network such that he knows which side of the split his targets may be on. Furthermore, if the attacker fails to split the network somewhat evenly, then he can ignore the minority side of the fork and immediately start trying again on the majority side, in an attempt to cause a 3-way split.
Finally, while you may believe that this attack is improbable, the prevailing wisdom of this sub is that a super powerful cabal of bankers will stop at nothing to destroy Bitcoin Cash (operating via their alleged proxy, Blockstream), and since a well-resourced attacker should be able to pull this attack off, I believe y'all should be more concerned than you have been. My recommendation is to remove the parked block functionality from ABC entirely, and accept the risk of medium-length reorgs.
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source https://www.reddit.com/r/btc/comments/am8fsl/bitcoin_abcs_parked_blocks_feature_allows/
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