Setor

Bitcoiner and Software Dev || Building BlindBit

Public Key

npub14agjgx6a67trjefrvllewlju2l92pyttuud2pfhydjguc63zvehs88dadk

Profile Code

nprofile1qqs275fyrdwa093ev53k0luh0ew90j4qj947wx4q5mjxeywvdg3xvmcpzpmhxue69uhkummnw3ezumrpdejqz9rhwden5te0wfjkccte9ejxzmt4wvhxjmcpzpmhxue69uhkummnw3ezuamfdejszrthwden5te0dehhxtnvdakqz8mhwden5te0dehhxarj9ejkjmn4dej85ampdeaxjeewwdcxzcm9qyvhwumn8ghj7mn0wd68ytnrv4exxct5wfhhvcfwd4jsrxvl3v

Publishing to

nostr.einundzwanzig.space

nostr.cercatrova.me

Author Public Key

npub14agjgx6a67trjefrvllewlju2l92pyttuud2pfhydjguc63zvehs88dadk

Show more details

Last Notes

2026-02-14 23:40:48 CET

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Most likely is, I have one as well.

2025-12-01 06:19:04 CET

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Maybe couldn’t afford a proper tattoo artist after spending all their money on V-Bucks 🙃

2025-11-28 18:37:17 CET

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Good point, there is a good tutorial made by @Ron, I should use the screenshots and link to it as well

2025-11-28 18:36:05 CET

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Yeah, compiling to different platforms has worked quite well. Haven’t tried browser as it doesn’t fit the project but that’s definitely a plus as well

2025-11-28 17:25:21 CET

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It used fyne a go package. Very lightweight and BSD 3-Clause

2025-11-28 07:25:42 CET

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Nice, glad for any feedback 🙏

2025-11-28 07:21:20 CET

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Yes, receive is SP only. Send is obviously to any standard address type.

2025-11-28 06:41:13 CET

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A little reminder, if you’d like to test out Silent Payments on Desktop, try this out. Receive and Send support for Silent Payments
#nevent1q…8e5v

2025-11-28 06:09:54 CET

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A Desktop Silent Payments Wallet:
#nevent1q…zqz5

2025-11-27 10:28:59 CET

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Super folge!
https://fountain.fm/episode/9L7rk3qZWT72AFqZGheF
#nevent1q…w4rl

2025-11-27 00:38:49 CET

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Erinnert mich hier dran
https://blossom.primal.net/d6dcd0b16ad402e4cfad9911d9895536af7e2c72933110bef01ea47e438d74dc.mp4

2025-11-16 10:40:01 CET

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Nostr DMs sind prinzipiell immer verschlüsselt (auch NIP-04). Die erste Idee der DMs (NIP-04) hat, wie richtig beschrieben, signifikante Privatsphäre Probleme. Jeder kann sehr einfach sehen wer mit wem kommuniziert. Aber wichtig man kann nicht sehen WAS kommuniziert wurde. Wenn wirklich jemand NIP-04 lesen kann, würde das eigentlich nur eine von zwei Sachen sein:
- private keys wurden geleaked
- secp256k1 cryptography ist gebrochen (wird auch in Bitcoin genutzt), ich denke mal das hätten wir gemerkt
Ich würde mal schätzen, dass die Nuss einfach vom Sender selbst eingelöst wurde oder es keine DMs waren sondern ein wirklich öffentlicher Kanal.
https://fountain.fm/episode/WMzDGqV19RDAB4FTKLHa
#nevent1q…6u2c

2025-11-13 08:32:44 CET

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GM. To anybody who is interested in Silent Payments or likes to experiment. If you want to move the available software stack further, it would be great to test and give feedback 🙏
#nevent1q…8e5v

2025-11-13 08:25:29 CET

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Maybe this will make things easier once more stable. Silent Payments Desktop wallet. Currently in alpha stage
#nevent1q…8e5v

2025-11-12 23:15:19 CET

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Static support address - when silent payments?

2025-11-11 14:47:58 CET

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Working on Silent Payments. There’s an alpha release for testing a desktop wallet application. First milestone
#nevent1q…8e5v

2025-11-09 20:43:46 CET

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Finally an alpha release for people to dip their toes into Silent Payments through BlindBit
#nevent1q…ulcw

2025-11-02 17:52:41 CET

First alpha release for testing of BlindBit Desktop. BlindBit Desktop is a pure Silent Payments (Bip 352) wallet for desktop. All scanning is happening locally, so the public indexing server does not learn anything about your transactions.
*Core Features:*
- Local scanning, reaping the full benefits of high privacy with Silent Payments
- Background scanning in tray, you will always be at or close to chaintip
- Simple GUI to manage the wallet
If you are keen on playing around with Silent Payments (BIP 352), this Desktop Wallet might be for you.
https://github.com/setavenger/blindbit-desktop/releases/tag/v0.1.0-alpha.1
*SHA256 Sums:*
b9c025f0c22a419248d2aa9000a905c90290b7182d5eafdca927f55357e9a465 BlindBit-darwin-amd64.zip
70e230bfb69ceaf2d7e03e02c23f099cebf26d45f933cb233ca7fa409e28ec0c BlindBit-darwin-arm64.zip
76f08a27a256a5940af024d28efd53fe22b5c1b5df0cbcc8a4b4dba3e6861da9 BlindBit-linux-amd64.tar.xz
745394ca580e454c63da4a37c51aa79ee9d5be02ae9c34ce56fc09b58ba3dce9 BlindBit-linux-arm64.tar.xz
2829dd3e430a681ea3a49501db18707f2a18823a478990429d9daedcd3a51d89 BlindBit-windows-amd64.exe

2025-11-02 14:50:41 CET

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So it's an actual algorithm change which brought these performance benefits? How come we don't find this in libsecp256k1 - Could your optimisations also be ported into libsecp? 🤔

2025-11-02 12:45:14 CET

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> however, ironically, the ECDH is faster now, where core and btcec are about the same
Might be a constant time thing?

2025-10-29 07:53:46 CET

Does @npub10r8…t2p8 also work for signing binaries/packaged applications for desktop? #asknostr
BlindBit Desktop alpha is quite soon™

2025-10-27 08:36:02 CET

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https://fountain.fm/episode/KK1MuHb520aIsfqXBmsZ
#nevent1q…tug4

2025-10-06 16:09:05 CEST

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Sehr spannende Folge!
https://fountain.fm/episode/7qTogVSHhOMhA9B9gz3b
#nevent1q…xzr6

2025-09-29 23:18:16 CEST

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I don't think this is any more so for silent payments than any wallet which is backed by electrum. Check out the light client work around BlindBit (built by me). Some of the stack in blindbit is nearing a public experimental stage. I have been using it for a while now

2025-09-21 14:03:10 CEST

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Und es heißt “Common Input Ownership Heuristic” 🤓
https://fountain.fm/episode/F2kqeStBj5J8yGQgiu4L
#nevent1q…4y7l

2025-09-21 14:01:24 CEST

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Bzgl. Joinmarket.
Alice will Bob 100k Sats schicken
Alice nutzt Joinmarket mit der Annahme, dass ihr Anonymitäts-Set dadurch größer wird
Alice ist also nun taker in einer Joinmarket TX und setzt ihren Output auf Bobs Adresse
Bob kann aber rausfinden welcher Input zu Alice gehört da man relativ leicht zurückrechnen kann wer der taker ist
Generelle plausible Annahme ist: Sender = Taker, da der taker auch die Outputs amounts festlegt
Weiter wird das Problem im verlinkten Bitcoin Talk Beitrag aufgerollt und ist auch hilfreich, um das Problem besser zu verstehen.
Generell, wenn Alice ihr Anonymitäts-Set vergrößern will, und mehrere Joinmarket Transaktionen anstößt - also als Taker auftritt - besteht ein ähnliches Problem wie oben beschrieben. Sogar eine dritte Partei die nicht Teil der Transaktion war, kann ähnlich wie Bob den Taker identifizieren.
Zusätzliche Annahmen:
Taker ist tendenziell (deutlich) öfter Taker als Maker
Maker ist tendenziell (deutlich) öfter Maker als Taker
Maker nutzt Output aus TX_1 als Input in TX_2 (wieder als Maker, siehe 2.)
Wenn ein Maker in TX_2 als Maker erkannt wird, ist er auch in TX_1 als Maker identifiziert. Maker werden, anders als der Taker, als eine Gruppe betrachtet. Also ein Maker kann unter Makern nicht identifiziert werden. Da ist das Problem nicht so schlimm. Beim Taker ist das ein Problem, da gibt ja nur einen.
Dadurch kann dann die Transaktionskette mit recht großer Wahrscheinlichkeit nachvollzogen werden. Also die coins von Alice können (wenn sie konsequent Taker ist) von TX_1 -> TX_2 -> TX_N mitverfolgt werden.
Sein Punkt ist schlussendlich, dass NUR die Maker ihr Anonymitäts-Set vergrößern und Taker NICHT. Es sind jedoch die Taker, die alles bezahlen. Sowohl die Mining fees und obendrauf noch die Maker für ihren “Dienst” bezahlen.
https://fountain.fm/episode/F2kqeStBj5J8yGQgiu4L
#nevent1q…rksf

2025-09-13 20:16:33 CEST

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https://fountain.fm/episode/niok6KOfsm46uX4vDozc
#nevent1q…5u5s

2025-09-13 18:00:02 CEST

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Thinking about making blindbit scan compatible once a standard is formed

2025-09-06 15:29:52 CEST

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https://fountain.fm/episode/sbQMbxEfWELrF95W1OqR
#nevent1q…d86f

2025-08-21 19:09:22 CEST

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It was a great event, thanks for sponsoring!
BTW stay tuned been cooking up some major changes to BlindBit. Indexing is going to be a lot faster once the next iteration comes out!
#nevent1q…d6x0

2025-08-11 07:51:10 CEST

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The relay code?

2025-08-08 08:31:28 CEST

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https://fountain.fm/episode/meCywvaB048XcXAzTUIj
#nevent1q…m6up

2025-08-05 19:36:14 CEST

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Will be there!

2025-08-04 21:14:49 CEST

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Gives me Atlas shrugged kinda vibes

2025-08-03 15:19:55 CEST

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Maybe this can help. It's an implementation of me hijacking the spec to transfer utxos and other data via nostr for a silent payment thing I've been working on. It's server side code but at least it's GO...
https://github.com/setavenger/blindbit-scan/tree/master/pkg/networking/nwc

2025-08-02 21:39:53 CEST

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Might want to have a look at the "Mirage of Swedish Socialism". tldr: Sweden got its wealth with large deregulation and risked a lot of it by introducing many regulations stifling the economy and later reversing many of those regulations again.
https://www.fraserinstitute.org/sites/default/files/mirage-of-swedish-socialism-economic-history-of-welfare-state.pdf

2025-07-11 10:22:06 CEST

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https://fountain.fm/episode/m4EIPYDrHpYOcJ0XtWdK
#nevent1q…v030

2025-06-21 11:32:22 CEST

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Super Folge! Hier ist noch ein GO wrapper den ich für eine schnellere Version für BlindBit (Silent Payments indexing) nutze.
https://github.com/setavenger/go-bitcoinkernel
https://fountain.fm/episode/Y6d7Qbnk5iV1KAdIciCR
#nevent1q…x3lh

2025-06-15 13:15:00 CEST

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Interesting, where can I read up on your project?

2025-06-08 20:49:21 CEST

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Sent a DM

2025-06-08 20:44:09 CEST

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Had issues on Firefox + Mac
Works on iPhone + safari
https://image.nostr.build/2c41dc91582e57884b6441c576f9f151ce9d2e3d081d44cc26137847e7c05c7a.jpg

2025-06-06 21:50:29 CEST

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Yikes

2025-05-30 15:45:11 CEST

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I’m starting to get a hang of it. Will keep an eye on your Eve project 👍

2025-05-30 14:46:12 CEST

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Had some issues with finding the notes. The first notes are starting to show up. Very cool. I'm imagining that something like this could be expanded to get DMs or with @nprofile…5qdr ? I'll play around with it some more and see.
Very impressed so far!

2025-05-30 12:48:45 CEST

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He’s sitting on more than $401, so I’d say yes

2025-05-30 12:17:29 CEST

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I managed to have a successful login to the proxy server

2025-05-30 12:16:55 CEST

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Finally got a chance to start it. How do I see a mailing list, where do subscribe? Should I be able to see your test notes after being connected?

2025-05-29 17:51:17 CEST

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Is that a public relay?

2025-05-29 14:46:40 CEST

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I’m still seeing the cow, or am I missing something 😂

2025-05-29 13:17:51 CEST

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Ahh cool! Now I understand. Cool project. Keep us posted!

2025-05-29 12:52:47 CEST

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A video is not a hard thing I’d need, just said that because you mentioned it before. Technically I’m just interested in why would someone want to receive the physical coin. Let’s say I’m a merchant or for that matter anybody who I’m not affiliated with in anyway.
Does having the coin somehow guarantee that I can claw the fund from the LN server? Or is it just a gimmick and I’m overthinking?

2025-05-29 12:45:56 CEST

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Interesting, do your numbers fit into the ballpark of ~9%?

2025-05-29 10:47:07 CEST

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Hmm I’m not really sure what this means. An explainer video is probably helpful. I feel like I’m missing some information to properly understand what this product would exactly do and why I would prefer it and also why somebody would be willing to take it (so “Sender” and “receiver” tradeoffs)

2025-05-29 10:44:17 CEST

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I think LNBIG disclosed their numbers just a month or two ago and I faintly remember that the yield was definitely not in that ballpark. It was mentioned in some rabbit hole recap a while back

2025-05-29 10:42:57 CEST

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Actually I don’t even know what ntag 213 is. I have not dabbled in physical transfers in Bitcoin yet. Only heard of opendime. So in my head I’m comparing the tradeoffs to that.
Why would I want to sign with the keys on the chip. The chip has its own key pair which is not related to the server right?

2025-05-29 09:59:29 CEST

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Thanks for elaborating. So if I understand correctly, the trust component is that the lightning server could rug you? What’s the key pair for?
Boltcards are connected to the lightning server as well. What’s the technical difference to the boltcard, as one wouldn’t use the bolt card as a physical way to exchange sats?
Or am I overthinking and it’s just meant to be used like a boltcard but the form factor is different?

2025-05-29 09:37:30 CEST

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Could you elaborate a bit more on where the funds are “stored”. You say the chip has cryptographic keys but it’s on lightning. Does the chip have its own lighting channel with the LN server or some sort of LSP?
How do you verify no one extracted the sats from the coin?

2025-05-27 08:21:12 CEST

It’s posts like these why I, despite reducing social media in general, always come back to roam nostr a bit and basically never go back to Twitter
#note15vy…ygtj

2025-05-27 00:02:14 CEST

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Link is bodged for me…

2025-04-27 22:07:45 CEST

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Works like a charm now 🤩

2025-04-27 19:58:25 CEST

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How do I make it not open BlueWallet? 🫠

2025-04-24 19:48:46 CEST

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Link to a ChatGPT translation. Can verify it's pretty correct despite the dialect used.
nevent1qvzqqqqqqypzpt63ysd4m4uk89jjxelljal9c4725zgkhec65znwgmy3e34zyen0qy88wumn8ghj7mn0wvhxcmmv9uq35amnwvaz7tmwdaehgu3wvdjhycmpw3ex7anp9ekk2tcqyzkp5jcezfa8utglevq35pvcummp75vfj8vlwrjftjz9ape2hhr2y9xrpmn

2025-04-24 19:47:03 CEST

**Dollar Hegemony, America’s Economic Demise – and *The Mandibles***
Gambling with the dollar’s status as the world’s reserve currency is little short of economic suicide. The tale in which the currency *bancor* becomes the new global money gives us a hint of how that might unfold.
The editorial team at *Dagens Næringsliv*, like so many others, searches in vain for logic in President Donald Trump’s economic policies. In many cases the aims and the means exclude one another. Most dangerous of all is the game of playing with fire: putting the dollar’s reserve-currency role at risk is tantamount to economic self-destruction.
Anyone wondering what that could look like should read Lionel Shriver’s novel *The Mandibles – A Family, 2029-2047*. In it she portrays a near-future United States where, almost overnight, the dollar loses both status and value and the *bancor* becomes the world’s new currency.
*Bancor* is the name John Maynard Keynes proposed for a supranational reserve currency at the Bretton Woods conference in 1944.
Naturally it is China, leading the BRICS nations, that controls the *bancor*—by then it has overtaken the United States as the world’s largest economy.
The book appeared in 2014, before Trump was on the political radar, and neither Trump nor MAGA is central to the plot. Yet with each passing day and every new U.S. economic initiative, the novel seems more prophetic. It is decidedly dystopian and reminds us that, although dollar hegemony has its downsides, abolishing it is not something we should wish for.
Global finance rests on U.S. government debt—and on the absence of doubt that America will honor that debt. Even the slightest doubt could trigger an economic catastrophe.
It is no secret that China and the BRICS countries are already working to avoid trading in dollars. That alone will weaken the dollar over time, whatever Trump does. The Trump administration hardly needs to accelerate the trend with peculiar policies.
Ironically, cryptocurrency may prove the dollar’s salvation. Not bitcoin, but *stablecoins*—cryptocurrencies designed to keep a fixed 1-to-1 peg to the U.S. dollar. The stablecoin *Tether*, issued by the company of the same name, is by far the largest of its kind, with tokens in circulation worth more than NOK 1.5 trillion. According to its own figures, Tether has over 400 million users, most of them in the Global South (Southeast Asia, Africa, and Latin America).
Tether is now one of the biggest buyers of U.S. Treasury bonds—by its own account likely the third-largest in 2024—and ranks among the world’s most profitable firms, earning about NOK 20 billion last year with fewer than 100 employees.
The business model is as simple as it is effective: the interest spread between the bonds and the zero-interest tether token. All the coupon income effectively becomes profit. By building the dollar’s digital infrastructure outside the United States, Tether is helping secure the future of dollar hegemony.
https://www.dn.no/innlegg/valuta/dollar/kryptovaluta/dollarhegemoniet-usas-okonomiske-undergang-og-the-mandibles/2-1-1804337

2025-04-24 19:45:49 CEST

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Europe is moving a Mandibles scenario into the overton window. Thanks for moving it into mine before the rest caught up. You either read it or you live it!
tbh I did not have this on my Bingo card for this year.
https://www.dn.no/innlegg/valuta/dollar/kryptovaluta/dollarhegemoniet-usas-okonomiske-undergang-og-the-mandibles/2-1-1804337

2025-04-16 20:52:58 CEST

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That’s a cool new feature. Thanks for linking

2025-04-16 08:14:15 CEST

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What is Boltz Pro? Could not find anything about it on your website

2025-04-13 20:05:07 CEST

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The chart looks a bit different if measured in other currencies. USD is down ~3% vs EUR/CHF. Basically the entire return seen in this chart above

2025-04-06 13:54:25 CEST

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Thanks! I’ll keep that in mind but no worries. I’m just interested in the tech behind it. These kinds of projects are what keep me lurking and looking at nostr.
Would it make sense to slap some sort of moderation on top or would it make more sense to structure the project differently for that use case?

2025-04-06 07:52:47 CEST

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Would love to test this once you feel like others can play around with it!

2025-03-11 11:44:55 CET

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Very interesting!

2025-03-07 18:16:48 CET

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Same for me, although I read it right at the beginning of my journey. Recently saw someone on the train reading it. Gave me a sense of hope that not all is lost

2024-05-09 20:14:48 CEST

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Interesting, sounds like something I should look into

2024-05-09 08:10:10 CEST

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What’s tails?

2024-05-06 17:45:07 CEST

Built a new thingy. Checkout my wallet implementation for Bip352 silent payments. Currently runs as a daemon and can connect to it via a cli.
The daemon is a light client and requires an indexer for tweaks and an electrum server. I’m hosting both of those on signet for testing.
Check it out here:
https://github.com/setavenger/blindbitd
Silent payments enable you to share a single address while not giving up any privacy. Unlike xpubs where all prior or future addresses are known. Silent payments generate a unique new key that only the sender and the receiver can identify.
I do not recommend running it on mainnet yet!

2024-03-27 09:40:09 CET

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How does badgerdb compare to leveldb?

2024-03-22 17:40:06 CET

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Same question here

2024-03-20 11:21:40 CET

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I’m not sure I’m understanding where those huge numbers come from? Are those to achieve some sort of obfuscation if spending one utxo without collaboration with others?

2024-03-19 23:27:28 CET

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How is wabisabi a scaling improvement? Is it because fees are cheaper? Never seen any numbers how much one actually saves in fees

2024-03-17 17:54:58 CET

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You still looking for people to contribute on your open source glassnode project ?

2024-03-14 20:17:16 CET

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Would like to contribute 🤙

2024-03-14 07:42:15 CET

I faintly remember that there was a new DM protocol in place for nostr that wouldn’t leak who’s a party in the conversation. Is that correct? Could someone please point me to the NIP or the spec, I think it’s NIP-44? And does it actually not leak metadata except ip and timestamp? #asknostr

2024-02-02 23:51:36 CET

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Took me way too long to see it for what it is 😂😂

2024-01-26 11:48:03 CET

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Il piccolo principe, trying to learn some Italian 🇮🇹

2023-12-27 11:36:39 CET

Does anybody have an idea where I can retrieve books online libgen [dot] rs seems to have some issues #asknostr

2023-11-24 08:57:52 CET

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Thanks for the reminder, still had automatic downloads on.

2023-11-21 18:50:26 CET

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Thanks a lot🙏

2023-11-21 18:31:38 CET

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I can’t seem to find the entire episode 🥲

2023-11-13 08:18:18 CET

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Phoenix is pretty solid.

2023-11-08 08:49:11 CET

Is there a tool on nostr that allows to run mailing lists? #asknostr

2023-11-03 16:16:39 CET

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Interesting!

2023-11-03 13:58:13 CET

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Maybe at least explain what it does 😅

2023-10-31 08:55:07 CET

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I might be an idiot rn, but I don’t see a download button?

2023-10-23 09:11:04 CEST

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Ok see that makes sense

2023-10-23 08:29:48 CEST

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Why can’t you trace any sat back to its origination block?

2023-09-07 07:39:38 CEST

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Saying the quiet part out load

2023-08-15 08:12:01 CEST

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Will be interesting to see where it goes

2023-08-14 17:21:02 CEST

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I like the concept, where can I learn more about my sats farm?

2023-08-02 00:36:49 CEST

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What do you guys think of my multisig App?
https://github.com/setavenger/SatoshiGuard

2023-07-31 11:58:55 CEST

Hi Guys,
I'm looking for testers for my new iOS multisig wallet. The app is already pretty stable but I want to get rid of any remaining hidden bugs. I have created a bug bounty program where you can receive between 5k and 21k sats per bug. Just report the bug on Github (more info on Github) #coffeechain #plebchain #bitcoin
Github:
https://github.com/setavenger/SatoshiGuard
Testflight
https://testflight.apple.com/join/dq0ciBGx

2023-07-28 10:12:27 CEST

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Das habe ich gestern lustigerweise auch gesehen. Habe denen auch direkt geschrieben. Bin gespannt was zurück kommt.
Danke aber für den extra Hinweis 🫂