Thanks, LFC! I just posted my question in the subforum you suggested.

My bitcoin node runs on a linux box. I've been away a few weeks, and I kept it switched off. When I got back, I found the main drive had some problem, so I replaced it and reinstalled the system and some of the software, including bitcoind. So far so good. After this, I proceeded to restore the latest daily backup of the .bitcoin directory. I then left the node running to verify and sync.

The surprise came when the catching up was done, and I launched the new daily backup. I use rsync, so only files that have actually changed do get transferred. Well, apparently about half of the blocks need uploading to backup, which was never the case during my previous daily backup routine. Why have older block files changed?

I'm talking about blk0XXXX.dat files. The latest is blk01790.dat, so I expected the backup to begin well after blk01000.dat, but rsync's output begins like this:


Why the change in all these old blocks?

I have a technical question about my bitcoin node for my fellow verifiers.

My bitcoin node runs on a linux box. I kept it switched off while I was away. When I got back, I found the main drive had some problem, so I replaced it and reinstalled the system and some of the software, including bitcoind. So far so good. After this, I proceeded to restore the latest daily backup of the .bitcoin directory, which among other things contains the local copy of the blockchain. I then left the node running to verify and sync.

The surprise came when the catching up was done, and I launched the new daily backup. I use rsync, so only files that have changed actually get transferred. Well, apparently about half of the blocks need uploading to backup, which was never the case during my previous daily backup routine. Why have older block files changed?

I'm talking about blk0XXXX.dat files. The latest is blk01790.dat, so I expected the backup to begin well after blk01000.dat, but the current backup (still running) begins with


What could have happened?

Let's not forget about double bottoms - or single ones, actually.

Pity. My advanced psychology trick didn't work... 

Related: A few days ago someone posted a link to a thread where members can upload screenshots of interesting merit/activity/etc figures. I haven't been able to find it by searching - either bitcointalk or google. The link was in this thread, of course. Can anyone help?

Merit of the Beast.



Now don't spoil this number by randomly awarding me dozens. Or do if you're really itching.  

I should have posted that tomorrow. 

Good and simple read. Merit-worthy, but I'm dry.

+1 WOsMerit
(Sorry: valid in the WOT only, as per instructions from management.)

I am a BTC believer. I am a HODLer.

Sometimes, however, the serpent of doubt slithers through my soul. This halving might be different from the others. What we know is that halvings are going to be more and more irrelevant as the supply decreases. What we don't know is the rate of increase of the irrelevance. In order to estimate possible halving effects, we can use a priori data and contingent data.

A priori data: current level of supply.

Contingent data: state of adoption, price, market sentiment, etc.

Just for a rough estimate, assuming the price at the halving is in the same ballpark as today:
 

Date	Reward (BTC)	Price (USD/BTC)	Reward (USD)
2012.11.28	50BTC	12.35	617.50 $
2016.07.09	25BTC	650	16.250 k$
2020.05.XX	12.5BTC	10500	131.250 k$

I've been looking at this table and pondering for a while, but the serpent isn't dead, not yet at least. Any food for thought? I'm still staying strong anyway, we all know why.

I am a BTC believer. I am a HODLer.

So we had our flash dumplet - nothing really worrying as it was, just one more dip to buy moar. There was strong resistance just below 10k, and getting back over that line was a matter of minutes. Some bought a little. My guess is no one panic sold - and certainly no WO peep.

TL;DR Yawn.

I think I bought something at the very (local) bottom. Got lucky with a stop. My suffering long position has increased, and its liquidation price got closer to 3k.  

I'm willing to risk moar and bring my liquidation price just under 5k, or even higher. But I'll have to wait until 15k before getting that bold. 

ouch

Devolving? Revolving.

Formally perfect
debut deserving merit
LFC scrapped it?


+1 WOsMerit to LFC (if the #haiku was actually written by him, and this isn't a quoting mistake by ulrich_zh)

one point three percent
every shitcoin bagholder
is this alt season?

Unknowingly, or...?
Posted a visual #haiku!
Goose with a surprise

Watching the corn grow
In the field and on the chart
it's #Haiku Sunday

There. I obliged 

I stand corrected. Witness data can be removed from the Merkle tree, not from the chain.

Actually it's as Lauda says. The Segregated Witness thingy basically alters the transaction format so that certain (most) cryptographic proofs (the "witness") are not on the main blockchain (they're "segregated"). That's why space can be saved: segwit transactions can be stored more efficiently because some data can be discarded. As a result, the average transaction fee is significantly lower.

A little help from me because of the lulz. 

She's needing a strap-on badly. Who knows why I have a hunch she'd like the attachment to be green.

It's this modern gender thing, you know. See what happens, the world is rotting. In my day, good ol' times, blahblahblah.