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141  Bitcoin / Bitcoin Technical Support / Re: Question about bumfee bitcoin core on: May 09, 2020, 02:01:28 PM
Hello,


Just a quick question,

https://bitcoincore.org/en/doc/0.16.0/rpc/wallet/bumpfee/

does bump fee act as a double-spend? since it creates a new transaction ID

Thanks in advance!
Yes, it spends the same outputs, but due to the RBF flag most nodes will see this as intended behaviour and thus "allow" it.

RBF also allows you to spend the same outputs to other "addresses" much easier, which is why 0-conf services (casino's) will usually only accept non-RBF transaction to be eligible. (to prevent the "double-spending" of unconfirmed transactions.)
142  Economy / Digital goods / Re: Selling Virtual Bank+Unlimited VCC create (Bunq) on: May 08, 2020, 06:49:56 PM
pin id full info

account is fully verified

just buy and start banking
Doesn't bunq, (and any other european bank for that matter) require KYC / SSN?

If so, does this mean you're selling accounts verified with someone else's KYC, unbeknownst to them?

I mean, legalities aside, wouldn't this be extremely impractical?

I imagine your account will get blocked at the slightest suspicion of fraud, and there'd be no way to get your money back, no?
143  Economy / Service Discussion / Re: "HCP's ongoing experiment of the BotHIVE.io Trading Platform"™ on: May 01, 2020, 11:42:55 AM
I'm kinda hoping (probably because I'm overly optimistic), that once the bot has actually been running 3-6 months (if it makes it that long before the whole show goes up in flames), that'll he publish more realistic charts based on actual historical performance... instead of a bot that was created to fit back test data.

I'm not holding my breath tho... Undecided
That should be the standard before even starting one imo, either that, or it has to be a really, really trustworthy person running the bot (even then though, i'm still not too fond of these "Automatic profit"-esque bots).

I did however like the concept that ARAKNE had about giving realtime read-only access to api keys. (although the data they gave really didn't support ARAKNE's case, imo, and it looks like that has been somewhat demonstrated now..)

If only it was a trustworthy person with perhaps a background in machine learning with an actual business case / plan that he can explain in lay-man terms w/ similar (but in this case real) evidence to support his case, i'd be willing to hear him out.

(Using hidden markov models for example)
144  Bitcoin / Bitcoin Technical Support / Re: Need a help! on: April 30, 2020, 11:26:27 AM
Who know if you steal someone else device and what is the guaranty that you are femal? Anyway if this is real story then don't share anything with untrusted person, don't pay someone to recover your fund. Likely you may got many offer from scammer via your inbox. Just avoid them and ask them for public discussion here. Do be victim of scam again.
I don't see how, even if the OP has been cheated on, this warrants theft of who knows how much (or how little) funds in the first place...? Just because he/she is a supposed woman that is supposedly cheated on?

These seem like very seperate issues. I actually don't see any reason why we should help OP steal something that isn't his/hers.

Anyhow, if it's encrypted with a basic password and you don't know much about decryption tools, i doubt you'll get far anyway.

145  Other / Beginners & Help / Re: Reasons I prefer non-custodian wallets on: April 24, 2020, 01:02:54 PM
I don't think there are actually that many reputable custodial wallets out there, except for ones linked to exchanges. (Binance, Coinbase, et al.), so i'm not really sure what wallets your'e referring to here.

Quote
The wallet that are most prone to attacks are web wallet, they are all custodian wallets, all the non-custodian I know are mobile, desktop and hardware wallets.
Blockchain.info/com isn't a custodial wallet.

Quote
Bitcoin and other strong cryptocurrencies  are crested to be completely anonymous, but custodian wallets will request for emails and other personal details that can be leaked to hackers.
No... ?
146  Bitcoin / Development & Technical Discussion / Re: Cost to perform a 51% attack on the BTC blockchain? on: April 17, 2020, 07:37:31 PM
Nicehash offers 1PH/s on the bitcoin chain for ~ 0.0168[btc]

Bitcoin sees ~ 120 exahash. https://www.blockchain.com/charts/hash-rate
 = 120000 pentahash (?)

120000*0.168 = ~141.120.000 $ to get 51% hashing power Huh (this doesn't seem that expensive.)

Although they obviously don't have that much mining power for rent (I see nicehash only has ~ 10 TH), but theorethically speaking, i think such an attack could perhaps be profitable, that is if my calculations are correct..
 

Seems you need to remove a 0 and you get $14M /day.

Not that cheap if you think about it. You either do a double spent or fork and hope othera will believe you are a billionaire Smiley)
I was more thinking about other scenario's, such as leveraged shorting using a platform such as Bitmex, as in the event of a 51% attack, you'd expect the price to go down.
I'm not sure if there's a possibility to short smaller coins such as ETC suffficiently enough though. (Although, looks like they have quite some liquidity on Bitforex etc.. -- 81 million in the last 24h? lol...)
147  Bitcoin / Development & Technical Discussion / Re: Cost to perform a 51% attack on the BTC blockchain? on: April 17, 2020, 07:22:09 PM
Hmmm. I think you can look at it a number of ways.. If you actually plan on buying all your machines, a simplified version would be something like

 number of miners = ( total network hashpower ) / hash power per miner
 number of miners * price per miner = $$$$$$


If you rent them, i guess it could be significantly cheaper.

Nicehash offers 1PH/s on the bitcoin chain for ~ 0.0168BTC

Bitcoin sees ~ 120 exahash. https://www.blockchain.com/charts/hash-rate
 = 120000 pentahash (?)

120000*0.168 = ~141.120.000 $ (For, lets say - a month?) to get 51% hashing power Huh (this doesn't seem that expensive.)

Although they obviously don't have that much mining power for rent (I see nicehash only has ~ 180 PH).

Purely theorethically speaking (if we forget about the practicalities of renting 120 ph worth of hashing equipment/however many hashes/s a chain has, (let alone buying it, in which case i highly doubt it would be profitable.)) i could see a number of scenario's where it could definitely be profitable to do a 51% attack.
148  Economy / Service Discussion / Re: Purse.io is shutting down on: April 17, 2020, 05:56:37 PM
They had 17 employees working in San Francisco, one of the most expensive cities in the world. Combined with a crisis potentially much greater than the one in 2008 and Amazon slashing their affiliate commissions they must have not seen much hope and the numbers must not have been great before these two events. It's shame because it was the best place to buy at Amazon with a discount, all other places that I know of are shadier/have more scammers.
I don't think Amazon has ever seen more orders than as of right now though (by the looks of their hiring stats? https://blog.aboutamazon.com/company-news/amazon-hiring-for-additional-75-000-jobs ?).

You'd think that would also correlate with an increase in Purse.io usage.
149  Economy / Reputation / Re: Is dark humor against the rules? on: April 17, 2020, 09:22:43 AM
I don't think it's necessarily bad humor that does the trick, but rather the fact that untrustworthiness might stem from this ""dark humor"", resulting in a negative trust..

If you go around with a username related to the holocaust and state some controversial things (or lies, rather) in the name of "dark humor", well, i doubt that that would do wonders for your reputation, or your perceived trustworthiness (Which i would say what the trust system is for.)


I already did my Around The World In 80 Days met over 2M people and did some bad things to about 120K ppl, but most of them were already sick, sorry.

I'll find a path myself. See you around, *cough*, *cough*...
I fail to see any "dark humor" in this, but rather see the words of a simple troll, which i think would be worthy of a red trust

I would probably rather leave a neutral footnote that I myself wouldn't be comfortable trading with you, but JayJuanGee took another approach which i personally don't have a problem with either.



As to whether it's against the rules,
Ever since I escaped that lab few months ago, I've traveled so many countries and met so many people, amazing!
I'll probably meet you soon. Stay tuned.  

You are making some disguised death threats.... but they aren't personal...

that's (probably?) rule #8 you're breaking.. and, as i said, I think general consensus would classify you as a troll, breaking rule #3

https://bitcointalk.org/index.php?topic=703657.0
150  Economy / Service Discussion / Re: Purse.io is shutting down on: April 17, 2020, 09:05:24 AM
and the fact they never managed to protect buyers against fraudulent purchases done with stolen CCs and vouchers, here we go.
I think this is the main reason they shut down. Always seemed to me like it would be too easy for people with hacked giftcards or giftcards received through scamming to cash out using them.

Perhaps they got pressured by certain authorities about this very issue? My best guess.
151  Bitcoin / Project Development / Re: Get profit from the sale of my crypto license on: April 10, 2020, 02:22:35 PM
Sorry, I didn't get your question. But I will try to reply.

The company comply all current policies and will comply if you buy it according to the policies. The company is not "worthless", it allows you to offer the following:
  • Licensed to provide virtual currency wallet services
  • Licensed to provide fiat to virtual currency exchange services

If you want to start business within crypto exchange, then it might be interesting for you. Look at the successful examples: https://www.luno.com/
I basically meant if the company would come with a (lease?) to an estonian office + a board of directors located in estonia, as would be required by the new regulations put in place. Or if that was something that the buyer would need to figure out himself. Although, - I guess that'd be fair too, as i would assume that you'd need to pay your nominee / B of D / office on a yearly basis anyway.
152  Bitcoin / Project Development / Re: Get profit from the sale of my crypto license on: April 10, 2020, 12:10:12 PM
Not sure if i would be interested in buying your company right now, but i'd be interested in understanding how it works?

So i buy your company from you ( I become 100% shareholder ?), and i assume you no longer would want to be the director of the company (or did you use a nominee, if so, how does that work?)

Also, don't you need to have a board of directors located inside Estonia to be eligible for a cryptolicense, (and an adress?)

Are all these things included?

Company may be granted the authorization only if its registered seat, the seat of the management board as well as place of business is in Estonia or, in case of a foreign company operating in Estonia, if its branch is registered in the commercial register and its place of business and the seat of the head is in Estonia. Therefore you should reside or be contracted (partnered) with someone who is presenting in Estonia.

If you don't reside in Estonia nor have a such partner in Estonia then I can find for you someone for sure. Also you can buy such nominee services in any Estonian law company.
So does your company fullfill these new regulations? Huh Otherwise, you'll  (or the person you will sell it to) lose your license in 2021?
(And that will render the value of the company as an "asset" of itself virtually worthless, no?)

But if you don't fulfill these regulations, what exactly are you selling right now? The company plus another service which will create a B of D & nominee/address?
153  Bitcoin / Project Development / Re: Get profit from the sale of my crypto license on: April 09, 2020, 05:58:48 PM
Not sure if i would be interested in buying your company right now, but i'd be interested in understanding how it works?

So i buy your company from you ( I become 100% shareholder ?), and i assume you no longer would want to be the director of the company (or did you use a nominee, if so, how does that work?)

Also, don't you need to have a board of directors located inside Estonia to be eligible for a cryptolicense, (and an adress?)

Are all these things included?
154  Economy / Scam Accusations / Re: coinsbit.io has taken all my funds without any explanation, looks like SCAM on: April 03, 2020, 09:40:02 AM
I've supported it for now. (At least until Coinsbit.io gives a reply to this accusation.)

I should note: you haven't really provided us with any verifiable proof. (But due to previous accusations against this exchange I think it's time for them to at least respond. If they flatly deny your case; well that's another story.)


155  Bitcoin / Bitcoin Technical Support / Re: How can I double spend an unconfirmed Bitcoin transaction? on: March 27, 2020, 06:10:33 PM
Thank you for the answer, you spoke of other options, which would they be?

I think the other options are referring to the Finney & 51% attack. See https://bitcoin.stackexchange.com/questions/4974/what-is-a-double-spend

(Finney; https://bitcoin.stackexchange.com/questions/4942/what-is-a-finney-attack)
(51%; https://en.bitcoin.it/wiki/Irreversible_Transactions#)

You're not likely to execute either of these attacks as an individual nowadays.
156  Economy / Services / Re: 💰 Review MyCryptoMixer.com and receive 0.002 BTC 💰https://bitcointalk.org/ on: March 27, 2020, 02:20:50 PM
Speaking of similar and the model which was broken in the past, i can smell something fishy about the whole service and I'm you guys (Loycev, mocacinno) fish it out.
I wouldn't see myself as having so much authority as to whether or not i could decide whether a mixer is legit or not. (Especially since i'm advertising a direct competitor)

I'm just unleashing some of my thoughts here in this thread, and it's really up to anyone themselves to give value to them, or not.

i dont say the OP site is scam but their service require some few precautions about ( never use huge fund on there and use their tor only).
That would be good advice in general for every new service, yes. Although, getting your money back is not the only concern you should have with a service. (Again, is it functioning correctly? Does it mix funds adequately? -- And i simply don't have an answer to that question, so i guess i presume (until i have reason to believe otherwise) they do what they tell everyone they do -- which is adequately mixing funds. (Although......)

You should just keep in mind that there were lots of other mixers in the past that also said they did so, but actually didn't. Bestmixer (seized, but servers DID keep transaction logs!!!), Bitblender (exit scamming), Smartmixer (selective scamming), and there's lots more.

Again, not saying MyCryptoMixer.com has the same intentions (ofcourse i'm not saying that.), but it's something everyone should keep in mind. That of course also goes for mixers such as Chipmixer.com (I would always recommend anyone to swap their private keys received from Chipmixer ASAP, since there is always a risk they could get seized, etc..)

157  Other / Beginners & Help / Re: Is it possible to buy BTC in cash at Madrid’s ATM ? on: March 27, 2020, 10:17:33 AM
Not depending on the supplier, OP refers to the purchase of BTC by ATM, the legal purchase of BTC will require certainly the identity of the buyer, ID card, passport or license drive, certainly must provide one of them. High costs are also understandable.
I know some people who bought from ATM's without any additional form of ID scanning, although that wasn't in spain so the operating laws might be different, again, i don't know if kyc is required for certain countries, but when i look at coinatmradar.com i also still see quite a few atm's which have ("NO VERIFICATIONS") in their bio (In my country of residence.), Though I guess if you use SEPA to make purchases your identity is also revealed/can be tracked.

I might be wrong though, and it very likely doesn't apply to OP's situation, so it's definitely smart to bring an ID if it's not explicitely mentioned on coinatmradar.

158  Economy / Services / Re: 💰 Review MyCryptoMixer.com and receive 0.002 BTC 💰https://bitcointalk.org/ on: March 27, 2020, 10:08:34 AM
  • You are loading external javascript from googletagmanager.com, they'll be able to inject js on your page, and they'll be able to track your visitors. Google is a US based company... Same as cloudflare
  • You are loading external javascript from google-analytics.com, they'll be able to inject js on your page, and they'll be able to track your visitors. Google is a US based company... Same as cloudflare
Oh well, our GTM is ultra important because our SEO guys can not live without it.
You can avoid this by using the TOR mirror of the site. We did research and many other sites are also using this.
I don't think this is exactly right.

Just tested: Even on Tor with the safest settings, you still force users to load your (non-script) GTM tags. Users (I) will actually have to manually block the request. It seems to be the only thing that's actually working on your .onion site right now Tongue




Other than that;

I do think it's a good thing you're using a LoG w/ PGP, unlike some other mixers which didn't do so in the past (looking at you smartmixer.).

And i have no idea how solid your mixing process actually is, and whether you can actually weather a chainanalysis "analysis", I also don't understand how anyone here can claim they do, or have a "fantastic mixing service". I guess we will just have to give them the benefit of the doubt? (We've seen mixers with similar (or the same) mixing models been broken in the past.)

I would also like to add that this mixer is not revolutionary in any way (from what i can see) (and i don't see how your SEO ""guys"" are going to make it revolutionary either), and it really is just same old same old to me. I don't know. (Take my comments with a grain of salt.)
159  Other / Beginners & Help / Re: Is it possible to buy BTC in cash at Madrid’s ATM ? on: March 26, 2020, 05:23:54 PM
Also, do I need my passport or any document ?
Or only my wallet + money is enough ?
I think that depends on the supplier and the amount of BTC you want to buy. Some do ask for ID, where others don't (Although i think the norm nowadays is that most do ask for id one way or another.). Also note that you'll probably pay a high fee for either of these options (5-15%)
160  Economy / Services / Re: 💰 Review MyCryptoMixer.com and receive 0.002 BTC 💰 on: March 26, 2020, 11:55:12 AM
I don't want to get paid, please don't send me anything.

I just want to point out that your design makes me think of several other mixers, but that could just be a coincidence.

Just like those several other mixers, you also use Cloudflare on your clearnet address (bad practice!)
https://who.is/whois/mycryptomixer.com


That's not even the worst thing: You also embedded a google TAG MANAGER.
You basically let google track everything on your site. That's terrible. I don't see how you can tell you offer privacy when you have such intrusive tracking/analytical tools embedded on your site.

Unless i'm missing something, how exactly is this "Bringing privacy back to the users" Huh

(Even for people who disabled javascript you added a GTM tag. That's just.. lol)
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