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5541  Bitcoin / Bitcoin Technical Support / Re: I can not parse files after blk00975.dat (Bitcoin Core) on: June 12, 2018, 11:30:24 AM
I'm sorry, I mistook your post as a "stopped synchronizing" post.
I did a quick research and I think it has something to do with SegWit (August 24, 2017).
Also, I have checked the blocks included in blk00971.dat & I've noticed that the timestamps range from last week of August to Mid September 2017.
And blk00975.dat's blocks are from September 2017, one month after SegWit (BIP144) activation.

SegWit input/output scripts structure is a lot different than the regular transaction's.

That "parser" doesn't support and cannot read SegWit Txs.
Disclaimer: I could be wrong.
5542  Other / Meta / Re: Stake your Bitcoin address here on: June 12, 2018, 08:31:46 AM
-----BEGIN BITCOIN SIGNED MESSAGE-----
Date: June 12, 2018
URL: https://bitcointalk.org/index.php?action=profile;u=1868251
Hello, this is CryptoShopPH.
My bitcoin address is 1DC8kqtkMHwprYBjYPwC8b7P239aWNiMcJ
-----BEGIN SIGNATURE-----
H/+25pdUmfmZqT0bcLZmoTj4c2GFc3oSYwXpgzZpP8YwJtLJXm/Sl6dgiuUWfSqxW6NeM5a2kSEIRycZowp+xRU=
-----END BITCOIN SIGNED MESSAGE-----
Quoted and Verified.
You may need to know the proper way to post quoted messages to avoid confusions, just follow TMG's post format above using [code][/code] tag.
It will be useful for you in case of a verification is needed.
5543  Bitcoin / Bitcoin Technical Support / Re: I can not parse files after blk00975.dat (Bitcoin Core) on: June 12, 2018, 08:19:05 AM
The block cluster must be corrupted due to some reasons.
Try to delete blk0097X.dat from the default data directory then re-sync your node.
For Windows, open file explorer/my computer and browse to: C:\Users\"UserName"\Appdata\Roaming\Bitcoin
5544  Bitcoin / Electrum / Re: How to know where Electrum holds your bitcoins? on: June 12, 2018, 08:02:19 AM
I would like to clear one thing: Electrum isn't hodling your bitcoins, it holds the private keys to control the bitcoins (inputs) that technically belongs to you.
Bitcoins are recorded (stored) in the Blockchain.

Um? I think you don't even need Electrum to do this.Just copy the address you want to know how many coins where deposited to it and paste it in a blockchain explorer to find out the date of deposits and the amounts.
A common blockchain explorer https://blockchain.info/
Edit:Correct me if I'm wrong,I'm not an expert
Yes, you are. But it will troublesome for him to copy-paste->enter each of the addresses.

The easier way is to open it using Electrum (it's too easy to download and install/open)
Display the address tab and find the addresses with balance, those are the addresses that should be checked on blockexplorer site.
Or use pooyah's link.
5545  Alternate cryptocurrencies / Mining (Altcoins) / Re: WARNING!! BEWARE S11 SCAM Email!! on: June 11, 2018, 10:20:47 AM
webmaster@bitmaintech.com is bitmains email. Ive been getting legitimate emails from this address for ages, thats why its so convincing, especially if you save this email as a contact / priority sender.
Ouch ok, so it must be an inside job or a sophisticated hacking incident and the attacker must have stolen more than customer's emails and contacts.
Otherwise, the "other guy" was right.

Awhile ago they did have a security issue, they told everyone to change passwords / enable authentication. That data they got must be these emails.
The first statement suggests that the hacker(s) didn't just fetched the emails but also Bitmain's admin accounts (and administration rights?) as well.

This is more serious than I thought.
5546  Alternate cryptocurrencies / Mining (Altcoins) / Re: WARNING!! BEWARE S11 SCAM Email!! on: June 11, 2018, 09:02:59 AM
Anybody knows how do scammers achieve sending email from Bitmain domain?
-snip-img-
Bitmain's domain isn't "bitmaintech", plain sight obvious.

Making a non "@gmail/@yahoo" email is quite simple. Ex. I have an email account trashcan@randomace.tk where the spam goes.
And the hacker just bought a domain that sounds like the original, then he made an email account using that domain.

Example: bitmain.com, the hacker bought bitmaintech.com then he created webmaster@bitmaintech.com as the fake administrator email account to scam noobs.
5547  Bitcoin / Development & Technical Discussion / Re: Was Satoshi's coding ability considered bad? on: June 11, 2018, 07:20:40 AM
Yes a Peer-to-peer decentralized digital currency was a great idea to be able to trade "everything" wordwide.
That's why "Satoshi's" "small project" became this big.
My guess is: Satoshi didn't expect this to be famous in just a short time, Bitcoin grew beyond his control that developing it with himself exposed was "too scary" for him.

-snip-
Whoa whoa, I take it as an insult to Einstein and the media, that's rude.
But really, "genius" is a state of mind and Einstein had lost it, stubbornly implied his theories even though he was not sure of it himself.
He even died without completing a "materialistic" reasoning to the theory of everything.

Speaking of frauds and Thieves, ask the one who "discovered" the DNA double Helix.
There's only one man that I know who's a Stable Genius: Donald Trump, Einstein and Satoshi are idiotic sometimes.
5548  Economy / Speculation / Re: Can you hold my hand? on: June 11, 2018, 06:25:44 AM
ROFL, zoom it out, that's too close.
It's Bitcoin and Cryptocurrencies, not Stockmarket or Forex Exchange.
chart
You've missed the real dip!
5549  Alternate cryptocurrencies / Altcoin Discussion / Re: Bitcoin Cash Blockchain API on: June 11, 2018, 06:02:12 AM
You mean Blockexplorer sites?
Bitcoin Cash's Bitcoin.com has its own BCH Block explorer, here's the link: https://explorer.bitcoin.com/bch

Also, you might wanna move this to Altcoin Section due to some "political issues" and this was really misplaced here. Moved

-Edit-

Additional Site(s):
5550  Alternate cryptocurrencies / Mining (Altcoins) / Re: Fan issue on: June 11, 2018, 03:47:35 AM
Here is an image of the scratches I found on the fans when I received them.

-snip-
Those aren't regular scratches,
looks like the refurbisher needed to reapply some lubricant by pricking the thin plastic cap using a thin pointed metal.
You can't base the fan motor's temperature  to the room temp,
It was also exposed to the case's internal temperature and the motor itself will produce additional heat.
5551  Bitcoin / Development & Technical Discussion / Re: Bitcoin money back. Very useful function. on: June 10, 2018, 09:02:31 AM
Even if it is possible on protocol level, the majority will surely be against this kind of feature due to some dangerous exploits.
But it's not possible, just a "what-if" example.

From my understanding, what OP meant was a script to select or flag all the output's addresses and the corresponding amounts to be able to use them as "contacts" and locally saved in case of a "return-transaction" (just a regular transaction) is needed.
This is possible to implement on 3rd-party wallets or the Bitcoin wallet GUI if you can back it up.
5552  Bitcoin / Development & Technical Discussion / Re: How strong is Bitcoin against 51% attack ! on: June 10, 2018, 05:37:08 AM
Unless.... the trading price drops to "mining unprofitable" value until the Pool operators themselves came up with an idea to earn "extra profits" by doctoring the next blocks.
As discussed in other threads, achieving more than 51% of the total hashrate isn't too far-fetched if two or more of the current mining pools merge together.
So if bitcoin's value became obsolete, this kind of possibility may happen...
Not saying that mining operators will revolt against Bitcoin but based on the statement: "How strong is Bitcoin against 51% attack".

The whole idea can't be based on the mining equipment/operation cost at all, but the whole setup including the price.
With the current setup, we are not that safe if a resourceful adversary plans it well, given that the Bitcoin trading price drops to an alarming value.
5553  Bitcoin / Electrum / Re: Electrum "description" field when sending BTCs for internal use only? on: June 10, 2018, 03:30:06 AM
By illegal contents, are you referring to how somone posted a code signature similar to that of a virus so that antivirus software attacks the blockchain.

It's therefore a good idea there's a 40byte limit or a bitcoin node attacking virus could be placed in the code (and that would be a very good strategy)...
I mean, the last April-May issues and news with reports of pornographic images and illegal trade-related messages embedded in the blockchain.
Whereas those are stored as chunks of 40bytes of data using a specialized app to puzzle the image/text together.
(Such sophistication for a simple thing)
That must be an indirect attack by adversaries and I have only mentioned it as a possibility.

And... we're getting off-topic.
5554  Bitcoin / Bitcoin Technical Support / Re: Missing bitcoins but blockchain says i sent the right amount on: June 09, 2018, 01:22:44 PM
It's been 3 days and it is still unspent, most exchanges consolidate their deposit addresses' inputs daily (or weekly).
Looks like you've sent your bitcoins to the wrong address.

Could be a fake clone site, was this your first time using Dream Market? If yes, double check the URL.

and transaction has been confirmed. 246 confirmations (not sure what this means) and says unspent next to the address i sent it to.
"Confirmed" means that the transaction was included in a block, and I think "246 confirmations" mean that it's already 246-blocks deep (behind) from the newly generated block.
5555  Bitcoin / Electrum / Re: Electrum "description" field when sending BTCs for internal use only? on: June 09, 2018, 10:32:53 AM
So this "testnet" is not really a network or a special BlockChain view.
Is is just a special BlockChain server.
Correct?
-snip-
Nope, as the name said, "test"net is a different network mainly for testing purposes.

The purpose of the Meta Data in blockcypher is for bookmark or extra information to the displayed transaction,
but nothing was stored in the blockchain as I mentioned above.

pooya's 2nd post must be a reply to my post, and my 1st reply was mostly based on this:
Is there another way to pass some small additional info text ?
I assume that it is for verification that you're the one who sent the transaction, so I suggested to send a link url of a blockexplorer with MetaData feature to the receiver.
In addition, you can sign a message to the input addresses as an alternative.
Otherwise, OP_Return can't be casually used in those scenarios.
5556  Economy / Games and rounds / Re: ☀️[CONTEST]☀️ BitcoinReal Symbol Contest.$1000 and more in BTC on: June 07, 2018, 12:03:58 PM
-snip-
Another Entry based from the previous non-circle entries that I've submitted (snipped quote as link):
nc50lc_BTR_logo
nc50lc_BTR_logo2
Unique and it looks good when scaled down to "coin size".
Already joined the Telegram group (Contest manager can request for my username).
5557  Alternate cryptocurrencies / Mining (Altcoins) / Re: Cheap coin one can mine on: June 07, 2018, 08:37:56 AM
Need help with the list of cheap coins one can mine using PC ?
A piece of advice: when mining, stop targeting the "cheap" coins which doesn't have what it takes to x2 or even x10 in the price.
You can easily buy them since they are cheap then hodl, same results.

What you want are those newly launched mineable coins which has a difficulty that wasn't already too high.
With a "normal" PC, the only option you got are the cheap old cryptonight coins but the algo had just exploited by ASICs.
Monero did a countermeasure, but you can't earn a considerable amount of XMR with that, try ETN but not now, wait until the "bad blocks" were mined.

Now, using those links above that they've given and with the help of google search, look for newly released or to be released CryptonightV7 coins.
Any new/under-development Monero (repo) fork will do.
5558  Bitcoin / Electrum / Re: Electrum "description" field when sending BTCs for internal use only? on: June 07, 2018, 05:51:41 AM
- you can include some data in your transactions using the OP_Return code which is limited to 40 bytes
https://en.bitcoin.it/wiki/OP_RETURN
https://bitcoin.stackexchange.com/questions/29554/explanation-of-what-an-op-return-transaction-looks-like
This rings a bell, the past illegal contents in the blockchain issue can be linked to that "OP_Return" function.
I don't know how it works but based on your statement, it is possible to insert "something" in to the blockchain.

In case it is for internal use only: Is there another way to pass some small additional info text ?
pooya87 was right, including a "description" wont increase the total Transaction size.

You can send a link to the receiver a blockexplorer which supports Meta Data addition like blockcypher.
The Data will be stored to their site's server, not the blockchain. The problem is, anyone can add their own MetaData to that tx as well.
Like this link for example (scroll to the bottom to view): Transaction with Meta Data.

P.S: There's a link below the page which said "You can also embed data into the Bitcoin blockchain" which I suspect that is "OP_Return", anyone can confirm this?
5559  Bitcoin / Bitcoin Discussion / Re: Descending Family Tree of Bitcoin on: June 07, 2018, 04:21:20 AM
You're going to love this page then:
http://mapofcoins.com/bitcoin

It's not really up to date though, I'm afraid.
Whoa, thanks a lot! Another page worthy of a bookmark.
I'm going to draw something like an evolutionary chart based on that (updated version) if I got the time and "motivation", because it's really a nice idea.
I've expected that there's a lot of past (repository) forks but, I didn't expect that there's already 667 forks in total just from start to Sept 2015.
Add today's shitforks and we will get 19,384 as displayed in Github, minus the "unadvertised" forks: ±3000, maybe?
5560  Bitcoin / Electrum / Re: unencrypted dat but forgot pw on: June 07, 2018, 03:42:04 AM
Weird, Electrum doesn't use .dat wallet format, it's just plain file name like wallet_1 or wallet_default.

Could it be, that you've made another encrypted wallet and Electrum automatically selects the previously used wallet in every run.
Have you tried to look for another wallet file in the default location using "Open" in the menu or "Choose..." in the passphrase window?
Or browse to (for Windows): C(your Windows disk):\Users\(Your Username)\AppData\Roaming\Electrum\wallets directly and look for multiple wallets.
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