The signature encompasses the output script and the amount too. Essentially, the signature will contain all of the transaction data (except the scriptsig and the signature itself), the output script is not excluded. The signature basically proves the ability of the transaction to spend the UTXO as well as the transaction outputs. If the transaction output is modified, the signature will not validate and thus the transaction would become invalid.

They're probably scamming you. I can't find any information about coinmixer.io, only about coinmixer.se.

They aren't updating the status probably to give you a false impression and avoid giving you the money back. Anyone would've accepted the coins and mixed it by now. You probably can't get the money back even though its unspent, do your own due diligence next time when choosing a mixer.

I'm looking for someone to reship some stuff from Canada. It's relatively small, just some health supplements from Amazon.

You must be relatively trusted around here.

Signalling of blocks. Its very hard for any single node to detect the flags of the other nodes, though USAF was done through the modification of user agent but consensus is traditionally not determined by that.

Versionbit signals for the activation within the last 1000 blocks.

The purpose of mixer is to ensure that the origin and the destination cannot be traced by the anyone. Transactions aren't really made anonymous through this but it makes it difficult for people to trace the coins back to the origin, without sophisticated analysis (if the mixer isn't good). Some people use it to circumvent certain restrictions tied to their online wallet (eg. Coinbase restricts transactions from gambling sites).

If you want to try a mixer, try Chipmixer. It's pretty reliable from my personal experience.

There's no limit per item. It's just the gift card balance after all. I've got loads of value, mostly as rewards (and mturk) and I don't really have much use for them.

* As long as its not thousand of dollars.

Are you signing with the correct private key? Key in your redeem script into https://coinb.in/#verify and check if you have used the correct private key corresponding to the correct addresses. Just to confirm, you are putting the raw TX signed by the first key into the second key right?

Electrum allows you to setup a multisig wallet and you can sign it there.

Don't have to be so rude and aggressive, I'm just giving you a suggestion. I definitely didn't ask you to remove this post, just move the post to the appropriate section. Smh.

Your topic can only be seen in computer hardware section and he can always scam in other sections or PM. If you move it to scam accusations, some other people would see it and give it a negative feedback. That is way more visible than a topic in the computer hardware.

Move this to scam accusations. It probably won't gain much attention in this section. Added a negative feedback though I'm not in the DT so effects would be limited.

The private key is invalid. Either you mis-typed the private key or the printed private key is wrong.
The private key should be 52 characters long.

I'm not exactly sure but I don't think the floating fee could be retrieved directly from the peers(?). There's no doubt many of the features will have to be reworked and I imagine that could be a hassle. Don't quote me on this, just a speculation.

MITM attacks could be done on Electrum servers if there isn't SSL on it or has a self-signed certificate.

If I'm not wrong, the renamed the developers of the android wallet so it doesn't show Andreas Schildbach anymore. It's now Bitcoin Wallet Developers on Google Play. The link is here: https://github.com/bitcoin-wallet/bitcoin-wallet.
Certain servers don't have SSL to it, and some have self-signed certificate. Doesn't seem to be the main reason though many sources state it as an advantage.

My take is that Electrum would lose a lot of features if they decide to shift to a non server reliant wallet.

If you're scripting the transaction yourself, you have to specify the UTXOs which you will be spending. Addresses are not specified in the inputs, per se. Just the public key, transaction reference and private key will be included.

If you want to do it with blockcypher, then you can look at their API documentation [1]. The API does specify the use of several addresses in the generation of the transaction. I think you can even specify the various parameters of your request [2]. If you don't need to use an API, you can generate your raw transaction on coinb.in.



[1] https://www.blockcypher.com/dev/bitcoin/#creating-transactions
[2] https://www.blockcypher.com/dev/bitcoin/#customizing-transaction-requests

I'm looking for old USB miners, USB Hubs (with british plug and able to function at 220/240V) and Raspberry Pi 2. PM me and let me know your price and the specs.

Yup. Install Bitcoin Core, run it once and shut down and go to the data directory (usually is at %appdata%/Bitcoin). Just replace the wallet.dat and reopen Core. You can just use the commands to dump the private key out.

Don't import it into Electrum preferably. Sweep it and you can just store the seed as a backup.

Is the macbook your only computer? If you have another, you can just install Bitcoin Core and extract the private key, no synchronization needed.

Pywallet is okay and it isn't exactly risky. It might be hard to use if you're unfamiliar with it. As long as you keep several backups of wallet.dat, you would be fine and you can easily switch to another backup if you mess one up.

No. P2PKH addresses (prefix of 1) doesn't allow the creator of the address to set a pre-defined condition. P2SH has scripts which allows the creator to set conditions for the outputs to be spent. The only thing that restricts P2PKH is to have a valid signature.

Yes. IIRC, one of the post on Bitcointalk was on this and it was possible in theory. I vaguely remember that it was years ago and I forgot all the technical details about it. I'll have to search my post history for a bit.

Most transactions aren't getting mutated for now, as far as I can tell but its definitely possible.

Bitcoin Core's default behavior is to ignore any transactions that spends the same input as in their mempool. This means that if the transaction that is mutated confirms, then the client will be able to see both the non-mutated (original) and mutated transactions. The one that is not in the blockchain (original TXN) will be given a -1.

As long as your addresses are generated using the seed, you will always be able to recover your addresses with your seeds. The main issue that they've highlighted is that you could forget to add the extra parameters when restoring your wallet in the future and get confused. Its totally fine if you can deal with this.

Smells like a scam
No. It's easy for anyone to take videos of random ASICs mining and its not that hard to find. If its so easy for them to get Bitcoins, they wouldn't even have allowed others to put money in to get a cut.
If you've paid them, the chances is slim. Private keys are never that short, they are typically 51+ characters long. You've gotten scammed.