If you have already confirmed with the recipient that their address is supposed to be: 3E7XkASFsXKKbh79yupoU8bMRTffByhJr9 Then those coins were definitely sent and confirmed... the blockchain doesn't lie!  The issue is at the recipient's end with their "wallet". Do you know if they were receiving coins to their own personal wallet? or if it was being sent to an exchange, website or web wallet of some kind?  |
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I don't leave it in the box. I have it in an airtight container (with silica packs), inside a fireproof/waterproof/airtight safe (with more silica packs), inside a pool that contains sharks with laser beams strapped to their heads, which is surrounded by a moat of lava, inside my evil genius lair, in a volcano, on an uncharted island in the middle of an unspecified ocean... It's pretty quiet out here, but the weather is generally quite nice  Note: When I'm not being an evil genius, it sits in my desk drawer. |
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You might want to have a read of the website that hugeblack posted earlier: https://jlopp.github.io/metal-bitcoin-storage-reviews/It's a fairly comprehensive test of a lot of "seed storage" systems... the Billfodl scored: C - Overall grade C - Heat grade A - Corrosion grade D - Crush grade |
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I meant I never was able to see my seed in the computer screen. Phew!
That is correct... the seed should never be displayed on the computer screen. It will only ever been shown once on the Nano S screen during initial setup. After that, the seed mnemonic is not "recoverable". |
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-----BEGIN BITCOIN SIGNED MESSAGE-----
This is Peanutswar, OCT 2 2020, bc1qh45r8qdp5zqf5cux77sq0k3gmjdljv4jdac0n0
-----BEGIN SIGNATURE-----
HyVb1ZlnAkbhg7ReBZ42/ZEzzP+6Z1jeY5O/kaCBZAN7HgakBz5EequLl4cKgYtc9rbcZwteW/L3nF3oOFa2sC8=
-----END BITCOIN SIGNED MESSAGE-----
What wallet app did you use to create this signed message? I cannot get it to verify the address "bc1qh45r8qdp5zqf5cux77sq0k3gmjdljv4jdac0n0"... even using Electrum it says "Wrong Signature"  |
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When using windows, there is literally no good reason to not update the OS (except for some inconveniences windows has when updating, maybe).
That's somewhat debatable given Microsoft's somewhat appalling record in 2020 for releasing updates that have deleted users data (multiple times) and, more recently, installed very old, outdated driver files.   It has got to the point where I leave it on "notifications only" and wait a good 7 days before running updates to give it enough time to make sure there aren't any major issues If more publishers were releasing games on Linux, and my work systems weren't so MS focused, I'd probably change in a heartbeat! |
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So your suggestion is the following:
- I import all the WIFs to my wallet [Locally, using Bitcoin core]
- Then downloading Blockchain itself and sync the wallet using Bitcoin Core [Online]
am I missing something here or that's exactly what you are trying to say?
That sums it up pretty much... If you want Bitcoin Core to list any transactions/balances correctly, you cannot get away from the 350Gig download. Also, realise that if you put a "very large number" of keys in a wallet.dat (like 10s of thousands), the performance of Bitcoin Core is likely to suffer. It's just not really designed for that number of private keys. Indeed, no wallet application is really suited to handling that number of private keys. You'd indeed be better off following LoyceV's advice and creating an index of all keys you generate, and comparing it to a list of all known "used" addresses etc. Even if the private key is used .. I don't care .. I love seeing these double spend results in Electrum from time to time  I have a record take a look here: https://imgur.com/IGV1I3dAre you claiming that you have already found "used" addresses/private keys by randomly generating keys/addresses and importing them to Electrum? |
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So, it's really just storing the blockchain data on an external drive? A lot of people seem to be doing that when running on laptops that have limited storage. The only real danger would be possible corruption should the drive be accidentally disconnected, which is a (marginally?) "higher" risk than when you are using a fixed, internal drive. Otherwise, as long as you're patient and wait for the software to exit cleanly before disconnecting, I don't see any real issues except for the already aforementioned speed/power draw issues. |
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Out of curiosity, how did you actually mine the block? Did you just manually construct one, then started hashing until you found a nonce that fit the lowest difficulty and waited until a block had not been found for a while and the difficulty reset before broadcasting? (Possibly having to rehash if a new block was broadcast in the meantime) Or are you running a more "traditional" mining setup with a CPU/GPU/ASIC miner and just got "lucky" with the TestNet difficulty? |
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As mentioned previously, it will not work with just the Ledger box... the Ledger box is NOT airtight. It's just a cardboard box. The silica gel packs will be practically useless inside the ledger box.
A simple "airtight" food storage container would be better than the ledger box. Even one of those glass jars with lids that have rubber seals around them would work. Basically, go search google for "airtight container" and go from there.
I'm sure they had all manner of containers at your local Walmart/Target/Dollar Store that would do the job.
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You must change the file extension. Put ".sig" instead of ".asc". It will probably work.
It works just fine with the ".asc" extension... and has done since I've been using Electrum  OP most likely had the wrong signature file for the installer file that they had downloaded |
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I am using WINDOWS 7 . Maybe that's why it is giving problem . Should I try it on my Android phone as said above ?
Most likely that is the reason why you're not able to get it working properly... if you can't upgrade to Windows 10, then your options are: 1. Try a Linux Live OS on a USB pen drive and boot from that 2. Try a Linux OS running in a virtual machine like Oracle Virtual Box 3. Try using Electrum on Android What is your end goal here? recover the funds and spend them? or recover the funds and continue using Electrum? Do you want a "permanent" solution that you can continue to use going forward or are you just trying to recover your coins? |
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So what are you getting when you buy a Skrill account "verified with full documents"? Basically an account with someone else's name on it, but I'm assuming that doesn't necessarily mean it was stolen, nor that it has funds in it.
The documents used to create the account in the first place might be completely fictional, no?
Theoretically, I suppose they could... however the Skrill account verification/KYC process seems to want: You will need your passport, ID card or driver’s license and a proof of address issued in the past three months. Once you submit everything, your account can be verified within minutes. Whether the system or service they use for KYC is robust enough to be able to detect fraudulent documents etc I cannot say... nor whether they periodically do manual audits of accounts and KYC info... but given that they appear to be operating within certain legal/regulatory frameworks, I would assume that they take that kind of stuff relatively seriously and that "fake" documents would likely result in your account being closed/frozen at some point. |
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I did manage to get this far before but then how do I use those to encrypt/decrypt messages as there doesn't seem to be any way to do this??? Thanks.
... I've been asked to encrypt a message and I'm having difficulties generating my key.
What exactly has the other party requested that you do with regards to "encrypting a message"? Are they wanting to communicate using PGP encrypted emails or IMs or something? Or have they asked that you "sign a message" using a Bitcoin address? |
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Anyway, I created like 100,000,000 random WIFs and stored them in .txt files 50K each "Because I read somewhere it is the electrum limit to avoid freezing ... etc" ..
You might want to have a look here: https://bitcointalk.org/index.php?topic=5274539.msg55165383#msg55165383User had ~151,000,000 keys and it was only 65% done importing after 2 days! (I believe that is with a fully synced instance of Bitcoin Core, so the delay was due to the time it was taking to rescan the blocks for each key added) - I would like to know if there is any possible way to import all these private keys without downloading the whole blockchain?
Yes, you can absolutely import the keys without downloading the blockchain, Bitcoin Core won't really be able to do anything useful with those keys, but they'll be in a very large wallet.dat Without the blockdata, there is no way the wallet can determine if there are any transactions and/or balance for the keys. You need the full blockchain. - How long it will take to import let's say like 1M WIF? and how much data does it consume?
As per the thread linked above, Bitcoin Core was not really designed to handle "millions of keys"... don't expect it to work very well with your use-case. Note that Bitcoin Core doesn't actually consume any data to import a key and rescan local block files... However, if your node is pruned, the data won't be available and the node will need to redownload the missing blocks every time it needs to rescan. If you're "serious" about attempting this, you will need the entire blockchain downloaded and stored locally on your node. Although, I would recommend you import all the keys first, then download the blockchain, so it can rescan as it syncs blocks, rather than having to try and rescan for 1 million keys in one hit. It will take hours if not days if you do it like that. - Will importing using Python will make it faster? if yes, please suggest a useful tool for that with an explanation for it.
No, the delay will be in the scanning of block data looking for transactions relating to your keys. The actual "importing" (ie. the adding of the keys to the wallet.dat) won't take very long at all. |
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If you never used those seeds (and reset your old device after you had created them), then there is practically 0% chance that there is any coins there. If you just want to satisfy yourself, then I agree with Rath, the easiest and most convenient way to do it would be with Electrum. Note that you will need to create THREE wallets for each seed... one for "Legacy", one for "P2SH-SegWit" and one for "Native SegWit". Given you have 2 "extra" seed mnemonics, you'll need to create a total of 6 wallets in Electrum.
Also, before you ask, download the latest version of Electrum and learn how to verify it properly... I'm not going to get into a discussion with you about whether or not it is safe to use your old 3.3.4 version... uninstall 3.3.4 and install 4.0.3. Step by step instructions to verify the download are here: https://bitcoinelectrum.com/how-to-verify-your-electrum-download/ |
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There are millions of ways to store your seed mnemonics. You've listed most of the common ways that people do this, ie. combinations of the following:
- Written on paper/waterproof paper/laminated
- Engraved/Stored using "Cryptosteel"-type solutions
- "Hidden" amongst other info/Stenography
- Encrypted on a cloud service
- Stored in safety deposit box/bank vault/fire and water proof safes etc
- Split seeds over multiple locations
They all have pro's and con's with regards to cost, ease of setup/use, convenience, ease of restoration, susceptibility to accidental loss/damage/fire/flood/theft etc. Find a way that suits your particular level of "risk acceptance", and go with that.
Also, if you're going to go with split seeds, check out the various "Shamir Secret Sharing" options available... this will generally prevent total loss if a single piece is lost (which can be the case in simply splitting in half etc), while still making it impossible to recover the entire seed unless X-of-Y pieces are available (like multisig wallets etc)
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