Remember there is a loss when converting from AC to DC. And there are losses when the AC adapter is just sitting there plugged in not doing anything.

You would also have the same losses with having the adapter for the RPi plugged in.

At the pennies or nickles a day to run a node it's probably not worth worrying about.

-Dave

Also important is the quality of the AC adapter.
In theory they should all be about the same. In the real world some of the cheap knockoff ones are bizarrely inefficient. As in you have to work hard to make them that bad.

A real Dell 90 watt laptop adapter should pull no more then 2A
I have in the pile of e-waste to be recycled some knock off fakes from Amazon that when pulling the full 90W @ 19.5 DC are pulling OVER 3A @ 125 AC or to put it another way FIRE HAZARD.

How can you actually make something that poorly with that much resistance that it gets to 130F?

So that does bring in an entire other discussion.
If you are using a full PC that will be on 24/7/365. Is buying a more efficient power supply worth it.



-Dave

No. The netbooks / laptops have a lot of other things that will cause them to use (nominally) more power.
Circuits to charge / maintain the battery.
Things involved in dealing with the keyboard & screen. Even if you remove the screen there is still more there then just the HDMI output like the RPi.
Not a lot individually but they do add up.

-Dave

I have also discussed this before but if done properly there is a lot of security hardware between the internet and your nodes and even between your nodes themselves.

With minimal security you can get the information from the public internet to your node very quickly. With DPI and some other security in place you can add fractions of a second to it in both directions which when relaying between your own nodes can add actual seconds to the time needed. For 99% of the things out there you will not notice. When mining BTC you will occasionally have an empty block like this. Still better then not securing your network and getting hacked.....

-Dave

Looking at this one using mempool.space since they give a slightly nicer view of them:

https://mempool.space/tx/5bca3df97f4bd155b75432a7fd2907e4ddc1d6e75452e314a0038de921eb3818

You can see it is a CPFP so although it's a fee of 61,092 sat/vB the effective rate is still crazy at 29,410 sat/vB.

This one:

https://mempool.space/tx/134d1e7ff9b765f4ee59d355d4a365845540a537d78380b0e404b92ae0f53193

Is also CPFP at 87,881 sat/vB effective rate of 22,454 sat/vB

I'm sure the miners thank them for their support.....

-Dave

All the security you need.

It's a hot wallet. Don't leave more then spending cash in it. Period. Full Stop.

If you still don't like the above answer. Pair it with some form of hardware wallet. If can be a physical card like a tapisgner or any hardware wallet that works for you.

Could be worse, you could have an iPhone

https://www.theverge.com/2023/9/8/23864150/ios-16-6-1-iphone-security-vulnerability-0-day-exploit-patch-update
https://www.bleepingcomputer.com/news/apple/apple-emergency-update-fixes-new-zero-day-used-to-hack-iphones/

-Dave

With no offense to the OP I see this as an answer in search of a question.

If you do some deep hunting around you can find some other people who tried something similar over the years here and none of them really went to far.

Not saying it's a bad idea, but that there are other things that get you close enough already so you can't just be better. You have to be a lot better and easier to use and more secure and.....

Because of mental inertia, people are going to keep doing what were doing instead of going in another direction since even if what you propose is better, getting people to change is just about impossible.

Not the same as what you are proposing but look at all the people who still leave their coins on exchanges knowing the vulnerabilities of them. Or use insecure hot wallets knowing the vulnerabilities of them. And so on. Why do they do this? Mostly because there is zero work involved in not changing what you are doing.....

-Dave

https://explorer.btc.com/btc/transaction/5bca3df97f4bd155b75432a7fd2907e4ddc1d6e75452e314a0038de921eb3818
https://explorer.btc.com/btc/transaction/134d1e7ff9b765f4ee59d355d4a365845540a537d78380b0e404b92ae0f53193
https://explorer.btc.com/btc/transaction/36b21256456434d7932930124976916cb47d833f12ed15af34d662aa35336de9

I mean there is the mempool is congested and I want to or have to be in the next block and then there are these.
Bad programming of wallets?
People who don't know better?

I don't think they are errors because of the number of them happening over the last few hours.

Your thoughts?

-Dave

It was mined within a couple of seconds of the block before it.

A properly configured pool with nodes all over the world that wants a bit of verification to be sure the block it's mining is good will mine an empty block instead of mining one that may be rejected.

Some pools will just go with what they have and risk mining an invalid block. Others will wait for a certain number of their nodes to agree. Do you give up the fees or risk the block? There is no proper answer, just an opinion.

-Dave

As I pointed out above one of the biggest problem is delivery.
For a home using solar to have it put power back into the grid when needed is not a big deal.

For a larger operation to put a larger amount of power back into the grid a lot more engineering and planning is needed.
If you can use the power by the generation point or close to the generation point or at least within it's own substation so to speak it's a lot easier and cost effective.

Not to mention, that if it does not work or has issues the local energy company is really not bothered about it.

-Dave

You can no longer rely on that, there are nodes that have TXs in them for months on end now and it's been shown that some miners will never drop TXs.
You can't assume that 300mb / 2 weeks is going to get it out of the mempool just the defaults.

-Dave

Save time and effort just send me your coins, why wait to get hacked on Uniswap.

https://crypto.news/hackers-use-sandwich-attack-to-steal-over-25-2m-from-uniswap/
https://hackenproof.com/blog/industry-news/4-7-million-stolen-from-uniswap-liquidity-pool
https://chaindebrief.com/uniswap-users-hacked-for-7-million/

Now we have hot wallets on your phone so you can loose your coins there too.

Come on, just send them to me 1st. I'll take care of them.

Fine, it's a bit snarky but.....

-Dave

On a limited production thing like the Ford GT you could get away with something like that. With a 'mass production' vehicle it's more difficult. Tesla had the 'get out of it' clause in the original contract that if you could show reason why you should be able to sell then they would let you after certain conditions were met.

But if other things happened. i.e. you loose your job and can't pay the loan and they don't let you get rid of it. Then you just keep driving it and not paying for it until they can repo it. Which can take a very long time and you were abusing the shit out of it the entire time. So they now have a car that has had been abused that they have to sell again.

Not to mention, in some states it's flat out not permitted to block the resale of motor vehicles to others. I know Nevada and New Jersey both *had* laws like that on the books, no idea if they still exist.
Short Version: Casinos were running car promos back then and if you didn't want the car, casinos were only offering about 65% OR LESS of the value of the car in cash. So people took the car and flipped it. Some casinos didn't like that so they put in wording to not allow the transfer for a certain amount of time. And then the lawyers came, then the states just put it in the FU they can sell it law because the better casinos were giving close the ACV of the car and were complaining that the ones being scummy about that were making all casinos look bad.

This goes back to the 80s. Was a big stink about it back then when the Corvette C4 came out and had a MSRP in the mid $20k range. There were a lot of casino promos with them and some casinos were giving something like $15000 in cash if you didn't take the car. Since you could take it and sell it for more then MSRP not allowing sales for a certain period of time was just bad optics. Not to mention the flip side, of you do owe taxes on the full MSRP next tax day, so you could take the car, drive it for a while and then sell it comes April 15th. But, that didn't work if you could not sell the car. It was just a mess all around.

I was in high school back then and a major gear-head, it was a big thing for a while if you were paying attention. If you didn't gamble or like cars you probably never heard about it. But, I can see the laws or variations of them still sitting there. If they can be enforced with a purchase instead of a giveaway or as a contract between the manufacturer and someone instead of a 3rd party who knows. I can see a bunch of lawyers just pointed out that it's just not worth dealing with it.

-Dave

Look at it as enforced savings. You don't want to move your BTC to buy something since it costs so much in TX fess so you don't spend it. More for you later :-)

But, seriously. This too shall pass. No idea when, but sooner or later the 'next big thing' in crypto will appear and BRC20 will stop being used and fees will drop and things will get back to normal. Next week? Next month? Next year? No idea, but it will happen.

-Dave

More or less the issue is you are doing a CPFP If you look at

https://mempool.space/tx/c2d38a9d12d6de50b1ea6b75f506457cdc94ab0c9f62b69a8df6db17f2cff310

The effective fee rate is only 67.3 sat/vb since you are covering the older 20 sat/vb tx

With you need about 190 sat / vb at the moment so you are going to have to wait it out or *massively* bump the fee.

-Dave

Subject kind of says it all. I used to really care about getting a physical debit card for exchanging some of my crypto.

Now for online purchases I can get a Visa or MC or Amex virtual gift card and for in store purchases I can use it in Google / Apple / Samsung / whatever pay app.

Yes at times having a physical card is needed, but I really see it becoming less and less.

Or is it just me and the way I do things.

Also, being US based may give me a different perspective then in other parts of the world.

-Dave

The xpub is generated from your seed. Use the iancoleman tool as recommended by others to get it.
Unless you changed something the m/0' is the derivation path used by BRD for legacy addresses.

-Dave

Some car people not interested in Ferrari
Some foodies not interested in French pastries
Some landlords not interested in house boats.

And so on.

Many people are never going to want to be involved in BTC / crypto.
That's fine. Same way you can pick any of the examples above where a lot of people are making / spending a lot of money and have no interest in certain things that are associated with what they are doing.

-Dave

Yes, the OPs cleared when the mempool got a bit less congested in early June

3 options now

1) Wait it out.
2) As @Potato Chips said do a CPFP if you can
3) Paid TX accelerator https://www.viabtc.com/tools/txaccelerator

Without knowing the amounts and your need for the BTC it's impossible to tell you what you should do.

-Dave

You are discussing 2 different types of hacks

One where the exchange is hacked. The other where the customer has some kind of hack / compromise.

For the client side there are a few methods that can be taken, but they all have their own issues.

I would like to see the option for having a 48 hour hold on withdraws over a certain amount.
Step 1 initiate the withdraw.
Step 2 at least 24 hours later you have to put in the address where you want the coins sent. (with some 2fa)
Step 3 at least 24 hours after that but no more then 48 hours you have to approve it. (with a different 2fa then from step 2)

For small amounts it's fine, whatever, but much like taking cash out of an ATM, you have limits and if you want more you have to go into the bank.


For the actual hacks on the exchange. It's really simple, all deposits go immediately into a 3 of 5 multisig wallet. Period.
The hot wallet for withdraw never has more then X hours on average of withdraws in it.
The cold wallets can ONLY fill 1 address for the hot wallet so even if you get 3 of the multisigs it's hard coded to only send the funds to hot wallet address so you would also have to get access to the hot wallet if you got access to the cold.

-Dave