Lagrange

Somewhere in the #Bitcoin rabbit hole. Learning to write plugins for c-lightning.

Public Key

npub1qq30cwhsrwh7zanyx7u8mykmfhfze0gs32cyf24qq57dctuanaus5y7nsu

NIP-57 Address

Profile Code

nprofile1qqsqqghu8tcphtlpwejr0wrajtd5m53vh5gg4vzy42sq20xu97we77gpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsdk5k8a

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub1qq30cwhsrwh7zanyx7u8mykmfhfze0gs32cyf24qq57dctuanaus5y7nsu

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Last Notes

2024-08-06 20:43:07

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Just an idea.

2024-08-06 20:41:51

#amethyst, #nostr, #featurerequest, @nprofile…pyug. Auto translation is great, but I can only set one language in the Amethyst app. However I can speak 3 languages, and I am currently learning others, thus I would like that notes if detected to be written in one of my favorite languages to show as it is, and only auto translate otherwise.

2024-06-11 06:04:32

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Hi. Do you mind sharing a working branch on this? I was also looking into this myself. (my nostr pubkey is in my github profile)

2024-04-12 21:24:21

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The housing crisis is probably the government's fault in the first place.

2024-04-05 13:58:28

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Never looked deeply into this, but my understanding is that there a decryption key that reveals the contents of the disk (stream cypher kind) and that key is protected by a password that the user provides at boot time.
Are you saying that the attack makes it possible to recover that stream cypher key that for some reason is laying around unprotected?

2024-04-04 18:56:26

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"... allowing an attacker to access a Pixel phone’s files using a computer connected over USB..."
Aren't you using encryption?

2024-03-23 17:25:47

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NIce chart. How do you get also the price after taxes?

2024-03-17 15:51:51

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What? Which bounty? Which book?

2024-02-18 16:04:13

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You also pay taxes on the money that you haven't used to buy things, and there is also inflation.

2024-01-31 16:40:44

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Is this development public? Can someone else participate?

2024-01-31 16:25:46

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Hi Calle. Out of curiosity: what does it take to integrate on-chain payments into cashu. I imagine that users of ecash are people who don't run lightning nodes themselves ...

2024-01-25 09:54:21

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You just need to build up a network of contacts. There aren't "follower" recommendation algorithms behind Nostr, it's just a communication protocol.

2024-01-25 09:47:50

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I'll keep in mind for next time I go to Latin America.
Do you know of any surf instructor in Europe accepting Bitcoin?

2024-01-22 20:01:33

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I want surf lessons, I pay in Bitcoin. Where are you located?

2024-01-22 19:59:39

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This is something I very much look forward to see happening.

2024-01-17 16:23:24

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yes, but does it actually do something?
If I set unit to USD and do /invoice 1, I still get an invoice for 1 sat instead of 1 usd.

2023-11-24 16:22:21

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No, MCF is done with a model of the network. RPC communication with CLN is needed to send the onions, we call sendpay.

2023-11-24 11:00:41

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Min. Cost Flow, where the cost function is a combination of uncertainty and fees. This is the implementation of Pickhardt-Richter's idea. https://arxiv.org/abs/2107.05322

2023-11-24 08:45:29

I have been fixing renepay lately and thanks to some insightful discussions and brainstorming with René Pickhardt we have had great improvements.
In summary, the current Mininum Cost Flow algorithm (MCF) cannot allocate fees as part of the payment amount due to the sats conservation assumption that the only source and sink of flow are the sender and recipient nodes. Once fees are added on top this resulted in channels being asked to forward more sats than their probable available liquidity and consequently possibly an infinite loop of failures. To fix this we take the routes computed by the MCF and reduce their sending amount to fit all liquidity constraints:
fee, uncertainty and max_htlc; then deficit in the delivering amount is redistributed among the other routes or reallocated in a new MCF computation if necessary.
More details at this PR: https://github.com/ElementsProject/lightning/pull/6893
before:
https://image.nostr.build/08ae35b68c3e9f09b8bda1574e452bb9bbe490c4921ee875af5adb9da274f10e.png
after:
https://image.nostr.build/718c55cd82260ed86a32bfa2cbc24af0137cae58ba56dd9d0c5f931483d2de21.png

2023-08-04 10:57:05

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Learning new skills often keeps me away from that guy.

2023-07-31 18:43:30

Pickhardt-Richter payments are now merged into core-lightning
https://github.com/ElementsProject/lightning/pull/6376

2023-07-07 13:01:16

Yesterday evening a person ask me:
"If bitcoin keys are generated randomly by the software,
isn't there a probability that two different people can generate the same
private key?"
This probability is astronomically small and we can compute it approximately.
To solve this we need to take into account that there are N = 2^256 = 10^77
possible private keys, but what we should look is the space of bitcoin addresses,
because to spend a P2PKH or P2WPKH output it suffices to have a
private key that produces the
same public key hash in the transaction output, ie. some private key that
produces a specific bitcoin address.
Since bitcoin addresses are computed from RIPEMD160 hashes, this means that the
space of bitcoin address is M=2^160=10^48.
If we consider x=10^10 people (8 billion at the time of writing)
in the world would generate y=10^6 addresses in their lifetime;
to put into perspective there are 800000 hours
in the lifetime of a 100 year old person.
Then the probability of no collision at all
is the number of possible ways to hit different addresses in the address space:
M (M-1) (M-2) ... (M-xy+1) = M! / (M-xy)!
divided by the number of possible choices:
M^(xy)
hence the probability of no collisions is
prob0 = M! / (M-xy)! / M^{xy}
since M!/(M-xy)! is approximately
M^{xy} - (1+2+...+xy) M^{xy-1} = M^{xy} - (xy)^2 /2 M^{xy-1}
we have
prob0 = 1 - (xy)^2 / 2 / M
Now, the probability of having at least one collision is prob1 = 1-prob0
which for large numbers at leading order becomes
prob1 = (xy)^2 / 2 / M
The square in the numerator the responsible for the so called
birthday paradox, ie. in a group of 20 people the chances of a birthday
collision is very high because 20^2/2 = 200 which is comparable to the number of
days in the year.
The collisions in the case of bitcoin are so unlikely because (xy)^2 = 10^32
while M=10^48 so that
prob1 = 1/10^16 = 0.000 000 000 000 000 1
not as small as the probability of a private key collission but still very
unlikely.

2023-07-05 17:03:02

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We accept MasterCard but only after you have properly registered with full name, date of birth, email address, telephone number, home address. You must upload a recent utility bill to proof your identity and address.

2023-07-05 16:52:55

My Pull Request for Pickhardt payments implementation in core-lightning has passed all CI tests.
https://nostr.build/i/acbefbae541f2586c90f6839290c3bf78d0b783f58a4a973f451b74c3389b1fd.jpg
https://nostr.build/i/2d3a4a7b0ea34a1d64e5a2907fe318f7c82740361f1a2a32607f8863c02b15ca.jpg

2023-07-02 16:13:39

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I'll zap some sats if you had a lightning address. Great contents!

2023-06-21 08:57:25

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What about their gold coins?

2023-05-08 16:48:49

how much did you pay today in LN fees?
https://i.imgur.com/eh9H6Im.jpg

2023-05-08 13:08:28

Ordinals and BRC-20s are flooding the mempool. Whoever is behind this is currently throwing 5 btc per block to miners. To keep it up they'll spend 720 btc a day. I wonder how many Bitcoin do they own. Maybe someone with on-chain analysis skills could estimate this based on the addresses being used so far to pay for the attack.

2023-05-07 17:51:54

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Hi. Do you do the chain analysis on your own? I would like to learn how to do this stuff with my node.

2023-05-07 17:44:55

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max HTLC, ..., let me check. Thanks a lot!

2023-05-07 15:40:18

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this is amazing. I run a small node myself, but I earn just like 50 sats/month. How much liquidity approx. do you invest in your node ?

2023-05-07 14:57:02

I suggest to follow @npub13lk…lpsy, for information about the environmental impact of Bitcoin. @npub16y8…fdmv

2023-05-07 14:46:05

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#nevent1q…fqdt

2023-05-04 14:09:03

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I also like the landscape photos.

2023-04-26 19:07:47

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what are the linear coefficients of the fit? With USD you had ln(mcap)=3.3 ln(SF)+14.6
I suspect that the changing SF of USD itself and it's artificial demand by US geopolitics introduces systematics in your fit. Gold, on the other hand has an almost const. SF and demand should also be almost const.

2023-04-26 18:18:06

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Why so few points? The curve with respect to USD had more data.

2023-04-22 19:22:56

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Maybe Argentinians should start denominating their products in Bitcoin. (Unit of account)

2023-04-09 21:42:02

What if we could host #nostr relays over tor?

2023-04-06 17:40:59

Can anyone please tell me what the 13% means. #[0]
, #[1]
https://nostr.build/i/nostr.build_fd3a6c01bea00c3c1a159ff3baa8a48d84acd9e42e44eec7bd1ae64141092c15.jpeg

2023-04-06 08:31:40

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ACINQ's Phoenix is a nice self custodial wallet.