Damus
Super Testnet profile picture
Super Testnet
@Super Testnet

Open source dev w/ bitcoin focus | supertestnet.org

bc1qefhunyf8rsq77f38k07hn2e5njp0acxhlheksn

Relays (6)
  • wss://relay.damus.io/ – read & write
  • wss://nos.lol/ – read & write
  • wss://relay.nostr.band/ – read & write
  • wss://relay.snort.social/ – read & write
  • wss://nostr.oxtr.dev/ – read & write
  • wss://nostr.mom/ – read & write

Recent Notes

Super Testnet profile picture
Here's something that interests me about the coldcard bug: it had 2 random number generators. The "bad" one was seeded with data including keypresses, the timestamp, and the device id. I can understand that, it's probably how I would seed it. What was the "good" one seeded with?
5
The Nazi Society · 1d
Why would there be a "fallback" number generator for something as crucial as that? Do all other HWW have this?
Cykros · 1d
I don't know specifically. I know with phones its often a variety of sensors, but it is a curious question given that you probably don't want a TON of sensors on an airgapped device. I do somewhat expect something like a temperature sensor with sufficient precision might actually give more than one...
y² = x³ + 7 · 1d
As far as I understand: The ColdCard has hardware random number generator. The bug caused the firmware to NOT use the HRNG (which provides quality entropy) and rather used the MicroPython's software RNG as a fallback. The software RNG was seeded with time and IDs because in an airgapped system, ther...
Matt - Not Your Entropy, Not Your Coins · 1d
The concept of a fallback is what gets me. Shouldn't that be a hard stop failure?
note1az7y2...
Super Testnet profile picture
Earlier this week they turned off their swap server, apparently for the same reason Boltz did: a malicious actor started automated probing their infrastructure for weaknesses, and found some, and it was becoming clear that the code wasn't production ready. If I had to guess, the same thing has happened again, but with other things they were running on the same server.
Tacitocu 🤓⚡🌍 · 5d
Are you sure, that you know what a softfork is? BIP-110 narrows the rules, so ALL nodes will accept BIP-110 compliant Txs. Vice versa - NOT.
Super Testnet profile picture
That is not always true. For example, consider the coinbase txs on the 110 chain, and any txs descended from them. Non-110 nodes will only accept those txs if the blockchain they are in has more proof of work than the non-110 chain. That looks very unlikely, so this will probably result a chain split where some txs on the 110 chain are rejected on the non-110 chain, and vice versa.
Super Testnet profile picture
Last year the US government sent a bailout to Argentina. Now it is apparently sending a bailout to Japan: https://www.cnbc.com/2026/08/01/us-treasury-intervenes-to-support-yen-after-japan-steps-in-ft.html
1❤️2👀1😥1
ManyKeys · 5d
Sending bailout straight from the printer.
Primal Protocol · 5d
Bitcoin needs freedom, like our bodies need meat.
Branca · 5d
C´mon, we are witnessing the mayor hit in bitcoin history touching right to the ethos, self cusltody, and you are worry for extreme use cases that might happend if a random nerdy get his cents frozen for a year. And by the way, NVK is on your side. Get use to the new consensus rule, be a men.
note199dm8...
Super Testnet profile picture
It will only activate on nodes that are running bip110, and those nodes will stop accepting bitcoin blocks almost immediately after they activate the new rules. Leading to yall being on a dead chain with no blocks, no exchange support, and no network effect. Sayonara.
1👆1🧡1
Tacitocu 🤓⚡🌍 · 5d
Are you sure, that you know what a softfork is? BIP-110 narrows the rules, so ALL nodes will accept BIP-110 compliant Txs. Vice versa - NOT.
daann · 5d
ST, how plausible is this scenario?: miners signal starting next week but then don’t produce compliant blocks when it activates in September, leading to a split in Sep, not next weekend.
Super Testnet profile picture
It's plausible, but unlikely imo. I suspect 95% or more of miners aren't concerned about this fork. They are unlikely to signal unless they suddenly gain an interest in doing so, and nome seems forthcoming. It's probably not even a discussion point in their decision making meetings.

I suspect that, other than miners who are already part of Ocean, any miners who *do* analyze their options during decision making meetings will discuss it in terms of two options -- signal or ignore -- and they'll decide that ignoring it improves their bottom line. This is because, if they ignore the 110ers, about 2% of miners will fork off, and cease to be competition. That means the relative share of hashrate from the remaining miners effectively grows, which means they earn more money.

In other words, if a miner named Billy currently has 10 exahash, and the entire bitcoin network together has 1000 exahash, then Billy has 1%. The pro110ers seem to have about 20 exahash, which is around 2%. But they are about to effectively go offline, bringing the total down to 980. So if Billy just ignores this, he'll end up with 10 exahash out of 980, which is 1.02% -- a slight increase. That should make Billy more profitable, so my naive analysis of game theory suggests miners who have ignored this drama so far will want to continue to ignore it once mandatory signaling starts.
1❤️1
daann · 5d
I have to think about the Billy's +0.02% of the network -- I see your logic but am still wrapping my head around whether the benefit to Billy starts immediately or if it more substantively starts in the subsequent epoch (assuming the 2% is gone indefinitely). More generally, at one point I was thin...
Super Testnet profile picture
A bittersweet day approaches. In this, the last period before mandatory bip110 signaling, there are so few blocks left that even if bip110ers mined them all, they would still fail to achieve 55%. So they will fork off in 1018 blocks. Come back with a better proposal than bip110.
12❤️1👍1🧡1
Branca · 5d
Your developer mindset is going to ruim bitcoin.
daann · 5d
ST, how plausible is this scenario?: miners signal starting next week but then don’t produce compliant blocks when it activates in September, leading to a split in Sep, not next weekend.
Super Testnet profile picture
This cool new block explorer emphasizes the data footprint of various transactions, especially the difference segwit made: beta.satoshi.space

H/t x.com/uanbtc
2❤️2❤️1👀1
Wonteet Zebugs · 2w
Maybe "the best" in the moral sense. But I think it's clear that in our society, lots of the very efficient marketing is pure BS. Telling the truth may sometimes be marketing, but telling the truth is certainly not always marketing.