Lead Core Lightning, Standards Wrangler, Bitcoin Script Restoration ponderer, coder. Full time employed on Free and Open Source Software since 1998. Joyous hacking with others for over 25 years.
Public Key
npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Profile Code
nprofile1qqs0zuj4s6jq9sr2ajqc69rc53d25rwpd3afcjrfm97r2qek69hcuscpz4mhxue69uhhyetvv9ujumn0wd68ytnwv46qz8rhwden5te0dehhxarj9e3xjarrda5kuetj9eek7cmfv9kq2h3udq
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Published at
2024-06-08T03:44:48Z Event JSON
{
"id": "2a2f9df4a08077b41de1ca2ec3dd7d072ca45729a1f8debdf711e46de1586e6b" ,
"pubkey": "f1725586a402c06aec818d1478a45aaa0dc16c7a9c4869d97c350336d16f8e43" ,
"created_at": 1717818288 ,
"kind": 0 ,
"tags": [
[
"alt",
"User profile for Rusty Russell"
]
],
"content": "{\"name\":\"Rusty Russell\",\"display_name\":\"Rusty Russell\",\"website\":\"https://rusty.ozlabs.org\",\"about\":\"Lead Core Lightning, Standards Wrangler, Bitcoin Script Restoration ponderer, coder. Full time employed on Free and Open Source Software since 1998. Joyous hacking with others for over 25 years.\",\"lud16\":\"npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s@npub.cash\",\"nip05\":\"[email protected] \",\"picture\":\"https://rusty.ozlabs.org/images/Rusty_Russell-lca2011+crop.jpg\"}" ,
"sig": "16ded7f3f6efc75faa92bca1936052a0244e479662f36393857d45acceeca06f47ccdc61e1156b673c7a06ae17ff1804ac8177da28aecb38b1d4dba8e3b7b8ef"
}
Last Notes npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Hi from https://cashu.centurymetadata.org npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I take birthdays seriously! npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Time for a Rocky Horror / Muppet Treasure Island double feature! npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Don't confuse a 2 week embargo with closed source. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Manager of the Lightning Team, she signed the last 5 releases? npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell You can also restart with npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Calle misread. It says upgrade when the release comes, or go --offline. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Was he actually malicious? I disagreed with him, but there is a difference. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Very few builders in this space are actually malicious. But many need to get out and touch grass. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Yes, classical C has the problem that operations are low-level, so if you overrun the end of a buffer, instead of a crash report the attacker can make arbitrary commands run. Also, manually deallocating memory can be omitted (oops, program grows over time, crashes) or done twice (also classically tricked into running arbitrary code). npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Yet last I heard, libsecp256k1 held up pretty well? npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Oh, winning! Pretty good stats on a really cheap die. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Here's something I've been working on along similar lines: https://github.com/rustyrussell/bip39dice npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Day 3 of grinding kimi to do a complete CCAN audit (CCAN is the repo of C snippets I maintain, used by many projects including Core Lightning). npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell No: if the grid is the entropy it's just a memorized wallet. The point is that the grid is low enough entropy that you can remember it. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I have not found a correlation between developer attitude and brilliance, regretfully. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I don't think burying Coinkite is the right answer, BTW. But reality rarely listens to my opinions! npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell No, you got a convincing-looking letter in the mail and upgraded your firmware, coins lost. Oops. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell But it won't stop someone like this who doesn't use it. Perhaps a secure_rng() API which refused to fall back? But that would have to be plumbed though all the Python libs too. And maybe they would have hacked it out anyway, in the hurry to remove GPL code? npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Patterns are the enemy of entropy. Because this is harder to evaluate, it looks better at first glance. If you assume people draw contiguous patterns, what is the actual entropy? npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I disagree with nvk on several things, but I like his uncompromising approach to hardware and shipping. Testing for weak entropy is hard, this is absolutely a mistake I could have made, and I would also be furious if this lost my funds. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I once printed out all 4096 BIP39 words across eight pages, and used a bazillion dice rolls in pairs (red die higher, choose left, white die higher, choose right, same value re-roll), based on the method described in BIP 93 (apparently this method is due Von Neumann, figures!). First three choices were between pages, then 4 columns, then rows (I made another sheet with a tree on it to do the rows, for my own sanity). npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Because it was a fake letter sent to their home address based on the ledger leak and in fact was instructing them to install malware that stole all their coins :( npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Today's side quest: Great Speculations (greatspectations.com). npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell What a horrible day. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Wow! Congratulations, both of you! ❤️ npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell That's great! I hope some of them work out. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell The problem with this is that well-run, boring, positive cash flow companies are really hard to find. All the obvious ones were snarfed up by previous variants of this play. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell https://media.someecards.com/someecards/usercards/MjAxMi03YWRiNGEzM2U2NWExNjkz.png npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Wild huh? Let's be friends. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Apparently the idea that we should be our best online, not our worst, is radically outside the mainstream? npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell As a Free Software developer, I've followed expansion of IP law quite closely. "Home taping is killing music", et. al. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Copyright was important and unassailable until there was Real Hot Money in ignoring it. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell This was fun! Good chat about finer grained control and incentives to mirror.... npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Not kernel, but he was Debian Project Leader at one time! npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Sometimes I forget there are old pictures of me on the internet... npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell More like "Bitcoin ALREADY HAS cured cancer, you just don't know about it yet!!!!" npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell At #OsloFF several people asked when Shit Bitcoiners Say would be back, so let me put it on the record: it's hibernating during the bear market. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Hey @nprofile…6z2t should I be pitching @nprofile…g954 to OpenSats? npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I'm back wearing a Pebble watch! I loved the original, and wanted to support the reboot. Let's see how we go after a month... npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell This is my new Century Metadata account. I'll try to remember to post CM stuff there, not here! npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell This is really touching! npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I don't understand why @nprofile…jp2l, @nprofile…6z2t and @nprofile…64cf hate each other, and at this point I'm afraid to ask... npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Official Bitcoin Twitter Self-Worth Chart npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Starting the long walk to Vienna! npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I think it's the logical, conservative approach. I wouldn't be upset with a wholesale replacement, but I would be dissatisfied if we didn't have a fair comparison. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell So I'm leaving Blockstream at the end of the month, to try to start up Century Metadata. A non -profit to store and serve a small amount of encrypted data for 100 years, for a small one -time payment. Lots of fun problems in doing this, only half of then technical. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell The main benefit of LLMs is that you don't need to apologize or justify when you clean up their mediocre code. It's a bit like having an insomniac coding intern who really likes to type. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I've been thinking about taking profits from a Sztorc Fork. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Guess in getting up for 5:30am then. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Don't support things you don't want to see more of. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell So, we're debating paying kids pocket money in sats. Since we're talking a few dollars a week, I'm thinking ecash, using https://cashu.centurymetadata.org/ npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell https://youtu.be/iDzV_jESwGA npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell #CLN We're finally deprecating pay (in favor of xpay) in the next release: Greenlight has conclusively demonstrated that it's more effective across the board. That begins the 12 month window to removal. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I wish! No, it rolls back the database, deletes the gossip store if the format has changed, and checks of you've used any new features which would prevent downgrade. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell We pushed it a bit on this one: There are some clients who may have trouble staying connected to you: LNDK nodes and some people who are running an older git version of LND. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell The idea of an activation challenge is interesting. But my preferred form would be an on-chain reward. A tx which uses its first input's txid to generate the puzzle NUMS, so you can't just copy it. Not sure how to generate such a challenge, maybe GSR, OP_TX plus cleverness... npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell To be clear, you're thinking of deriving a second (hardened) key, for which a signature is checked in tapscript, assuming that the keypath spends will eventually get disabled? To do that we need a BIP32 path standard, and get this advice into BIP-0341 instead of the current advice on unspendable script path selection, then get wallets to implement it. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Yes. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I've been through tech hype cycles before. They always have a grain of truth in them (otherwise they're trivially refuted) but they don't always work out. I have been through three VR waves, for example. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Americans trying to get back to the moon and missed. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Wow, that's some lunch with the mayor! npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell No, it's all agentic payments! npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I'm hearing them, not listening to them :) npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I keep hearing about all the billions left on the sidelines, which will come rushing into Bitcoin when some legislative or regulatory event occurs. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Hmm, stuck in "processing". npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Actually, I'm not sure how. cashu.me doesn't seem to give me an option. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Let me try... npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Now I serve a web page at that URL. Probably presents too much info. @nprofile…xnfk might have suggestions for what I should put here? npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Fired up a cashu mint today: should exercise my CLN node a bit more! npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Token bucket filter for the win: most occasional posters are not *regular*. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Finally read BIP-54 (mirror at https://bips.dev/54/) and it is straightforward,minimal and thorough. At this point I can endorse it as a good idea and worth doing. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Here are two of my favorites: npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell https://json5.org/ npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Each Bitcoin you send has a "script" which says how it can be spent: usually just a signature for the owner's key. There's lots of other stuff yo can do though. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell https://github.com/bitcoin/bips/pull/2118 npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Kick the can down the road? I cannot see the appeal from any direction... npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell You are minmaxing again. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell https://rusty-lightning.medium.com/the-three-economic-eras-of-bitcoin-d43bf0cf058a npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell To check the signature, you hash the transaction. So the only cost that OP_RETURN is doing is the cost to download and hash it. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell You only have to download and hash: you don't have to check extra signatures (our most expensive operation) or put them in the UTXO set (our most constrained memory resource). npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell You will not be at peace until you understand the truth: every non-coinbase bitcoin transaction which does not eventually send funds to me is spam. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell So, OP_RETURN is fine, as is annex data which don't increase validation burden? And cutting off OP_RETURN and driving those uses to fake pubkeys, which does increase future validation costs, is a threat? npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell It adds an entire transaction! Every time it does that, it uses up farmore space than an 80-byte OP_RETURN. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell OTS transactions only exist to put non-financial data in the Bitcoin blockchain. Is that ok? npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Indeed. Lightning commitment transactions stash the commitment number in the nSequence and nLocktime. Is that spam? npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell None of those celebrating her departure are Bitcoiners. Because clearly they neither understand or like Bitcoin. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Reading comments on Gloria's departure from people who have never contributed anything is stepping in an enraging sticky fecal mess. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Suggesting such things means you're clearly not a Real Bitcoiner! npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell My brain keeps conflating "Ghislaine" with "Gharlane of Eddore", the bad guy from the 50s sci-fi pulp Lensman series. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I have been having way too much fun reading moltbook.com npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Damn, there was a proposal for BOLT spec changes to enable fixed-size messages, and now I have to implement it to show it's unnecessary... npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell https://rusty.ozlabs.org/2011/05/19/if-you-didnt-run-code-written-by-assholes-your-machine-wouldnt-boot.html npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Paused my reading of The Mandibles for Xmas day: It's not exactly holiday reading. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell 1. No, I'm not reading your article on quantum. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell BROKEN: Full KYC. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell @nprofile…xxx2 recently posted on X about the danger of "store and forget" for Bitcoin over decades. Unfortunately he's right. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I think finding a bug where printf("%*.s") was used instead of printf(".*s") was the point at which I realized that some C issues cannot be mitigated with better tooling... npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell I hate price talk, but if you're going to do it, please understand that "market cap" is a very rough *ceiling* on current value. npub179e9tp4yqtqx4myp35283fz64gxuzmr6n3yxnktux5pnd5t03eps0elz4s Rusty Russell Don't suggest a developer resign unless you're the one who will shoulder the load.
