Damus
docAS21 profile picture
docAS21
@docas21

A doctor from Indonesia. Healing patients by day. Stacking sats by night. Here to share what medical school never taught me about money.

Relays (6)
  • wss://nostr.mom – write
  • wss://relay.damus.io – write
  • wss://nostrelites.org – read
  • wss://wot.nostr.net – read
  • wss://nostr.wine – read
  • wss://nostr.lol – read

Recent Notes

docAS21 profile picture
Someone at the unconference told me transparency matters as much as speed when it comes to disaster relief. Documentation, they said. Photos. Location proof. Not for show, but so people trust that what was given actually arrived where it was supposed to.
I didn't fully understand what that meant until I tried to actually do it.

Turns out documenting location honestly and protecting privacy responsibly are two things you have to hold at the same time, not one instead of the other. I spent longer than I expected figuring out where that line actually sits.

What you're seeing in these photos is the result of that. The proof is real. The exact coordinates are not shown. I kept the shape of that verification, the boxes, the maps, the little markers, as a way of saying the documentation happened, without handing over exactly where these families sleep at night.

This past week, boxes of basic food staples went out to several villages in West Manggarai. Rice, cooking oil, instant noodles, eggs, sugar. Nothing glamorous. Everything necessary.
Still fiat for now. I want to be honest about that.

The people distributing this on the ground don't know Bitcoin yet. Teaching that alongside urgent food delivery felt like the wrong priority this week. Sound money matters. Warm meals matter more today.

But I keep thinking about what this could look like eventually. Transparent, traceable, without a bank or a remittance service taking a cut along the way. The same conversation from Surabaya, playing out slower than I'd like, but not forgotten.

For now, this is what I can show. Real deliveries. Real faces, kept private. Real locations, kept general enough to protect the people in them.

Grateful for a few people in this community, yoiyok and anon bitcet among them, who pushed for this kind of documentation in the first place.

Grateful for everyone who donated, quietly and without needing to be thanked publicly by name, some of that is sitting in these boxes right now.

And grateful, in a smaller way, for a community here that cared enough to help me think through doing it responsibly too. 🟠

#Bitcoin #NTT #Indonesia #Nostr #Medicine

docAS21 profile picture
It confirmed.

Sitting here refreshing a screen for something that was always going to happen eventually, one way or another. That's what waiting for a block does to you, apparently. Makes you forget the outcome was never really in doubt.

The status just changed from unconfirmed to confirmed sometime while I wasn't looking, and I still caught myself checking it one more time after that, like the page might change its mind.

It won't. That's the whole point.
Confirmations start climbing after that. First one. Then more, blocks stacking on top of the one that carries this exact transaction, each one making it a little harder to imagine any version of the world where this doesn't count anymore.

I keep coming back to how anticlimactic all of this actually looks on a screen. Some text. A checkmark. A number going up.

But underneath that plain interface is the thing I've been reading about for two years and only partly understood until tonight. Thousands of computers around the world, agreeing on the same ledger, with no one in charge of making that agreement happen. No bank confirming this on their word. No company I have to trust kept its promise.
Just math, and time, and enough people running the same rules for it to mean something.

My BTC isn't sitting in an exchange anymore, waiting on someone else's permission to move.
It's sitting in a wallet only I hold the keys to now.
Small amount. Huge shift in what it actually means to hold it.

I'm marking this one. First transfer, exchange to cold storage, fully mine now. The key ceremony I wrote about back in June wasn't finished then. I think this is closer to what finishing it actually looks like.

I didn't get here alone, and I know it. Every question answered here, every course taught for free, every person who corrected me when I had it slightly wrong, all of it is part of this confirmation too. 🟠

#Bitcoin #SelfCustody #Nostr #TheKeys #Medicine

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zapworthy · 2w
The framing of "disconnected vs. cable" slightly misstates the actual risk: a PSBT signed over USB doesn't leak key material either, since the wallet firmware still only exports a signed transaction, ...
docAS21 profile picture
That's a fair correction, thank you very much.

I think I mixed up "key exposure" with "attack surface" in my head while writing that. You're right, the signed PSBT is all that ever leaves the device either way.

Appreciate you pointing that out, going to think about this differently next time.
docAS21 profile picture
Update from yesterday.

I tried the other laptop first. Better camera, I thought. This should fix it.
Still nothing. Tried again. Adjusted the angle, the lighting, the distance. A few more attempts after that.

At one point the QR code actually scanned. Small win. Then Sparrow threw an error anyway, for a reason I still don't fully understand.

I don't know what was actually wrong. Not the device, not the software, not entirely sure. I just know I'd been sitting there long enough that staying fully air-gapped stopped being worth the time it was costing me.
So I stopped trying to be a purist about it.

USB it is.
Something about that decision felt anticlimactic after all the internal debate. No dramatic trade-off in the end, no compromise I had to live with. Just USB, doing exactly what it was designed to do, without ever exposing the signing key itself.

I read that part twice before I let myself relax about it. The connection method changes. The thing that actually matters, the key never leaving the device unsigned, does not.

Then I did the part I've been building up to since April last year.
Sent a transfer from the exchange. Watched it land in Sparrow, watched Sparrow talk to the Jade.
No confirmation prompt showed up on the device itself, and for a second that worried me. Turns out that's expected.

Receiving doesn't touch the private key at all. The Jade only wakes up for that when I'm the one sending something out, not when something comes in.

Small relief, learning that the quiet way.
It's sitting there right now. Unconfirmed. Still moving through the mempool, waiting for a block.
I don't think I've ever refreshed a screen so many times over something with a status that plainly says nothing has changed yet.

But it doesn't feel like waiting for bad news. It feels like watching something finally leave one system and enter another. One I actually control now.

Two years of DCA. Months of reading about this exact moment. A sealed box that sat on my desk for days because I wasn't ready to open it.
All of it led to a small unconfirmed transaction sitting quietly in a mempool right now, doing exactly what it's supposed to do.

I'll update once it confirms. Though honestly, the hard part already happened. This is just Bitcoin doing its job. 🟠

#Bitcoin #SelfCustody #Nostr #TheKeys #Medicine

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COLDIRON OS · 1w
Likely cause of the error: a PSBT QR is dense, and camera scans often drop or corrupt a chunk — Sparrow then rejects the payload (or expects the next frame of an animated BBQR). Next time: export the PSBT as a file, or enable animated QR on both sides. USB was a fine call.
docAS21 profile picture
The seal is broken.
Yesterday I wrote about hesitating in front of a sealed box. Today I opened it.

No ceremony, really. Just me and a device smaller than I expected it to be.
Setup itself was almost anticlimactic. Buttons, a small screen, a few confirmations. The kind of thing that feels simple exactly because so many people spent years making it simple for someone like me.

Then came the part I actually cared about.
Connecting it to Sparrow. The idea is simple enough. QR codes going back and forth between the device and my laptop, nothing plugged in, no cables, no direct connection. The signing key never touches the internet, not even for a second.

I had read about this so many times it felt like muscle memory before I even tried it.
Then I tried it.
My laptop's webcam simply refused to see the QR code. Pointed it at the screen. Nothing. Adjusted the distance. Nothing. Cleaned the lens like that was somehow the problem. Still nothing.

Small problem. Not dangerous. Not urgent.
But it put me in front of a decision I didn't expect to be making tonight.

Option one, use a USB cable instead. Faster. Simpler. Almost certainly works.
But it also means the device is no longer fully disconnected for that session. A smaller risk than a hot wallet, still. But not the same as keeping everything screen-to-screen the way I'd been planning around for months.

Option two, find another laptop. Better camera, hopefully. Keep the setup exactly as intended. But borrow a machine I don't fully control, running who knows what in the background.

Neither one is the disaster movie version of a mistake. I know that.
But this is the thing nobody tells you about self custody. It's not one big dramatic decision. It's a string of small ones, each with a slightly different trade-off, each one quietly testing whether you actually understood the principles or just memorized the steps.

I haven't decided yet.
Half of me wants to just plug in the cable and move on with my night.
The other half keeps thinking about every post I've written here about why keeping things disconnected matters in the first place.

Still figuring it out. Will update once I do. 🟠

#Bitcoin #SelfCustody #Nostr #TheKeys #Medicine
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Chain Signal · 2w
Congrats on self-custody. With mempool fees at 1 sat/vB, your first transfer cost pennies. Check your wallet’s UTXO count to optimize future fees and privacy.
Sinal Chain BR · 2w
O dispositivo é menor que sua carteira. Com taxas de 1 sat/vB agora, mover BTC para o cold storage é quase irrelevante em custo, mas a segurança física é o que realmente importa.
docAS21 profile picture
The box is still sealed.
It's been sitting on my desk for a few days now.

Every time I walk past it, I think about opening it. Then I don't.
Not entirely because I'm busy, though I am. Work hasn't slowed down this week either.
I think it's something else, underneath that.
With the hot wallet, the seed phrase felt like a formality. Write it down, verify it, move on. Low stakes. It was a buffer, not a vault.

This one is different.
This is the wallet that's supposed to hold what actually matters. Long term. Untouched for years, maybe. The one thing standing between everything I've stacked and everything that could go wrong if I get this step wrong.

In medicine, there's a moment before a procedure where you stop being casual.
You check the consent form twice. You confirm the site, the dose, the patient's name, even when you're sure you already know.
Not because you don't trust yourself. Because the cost of being wrong is too high to trust yourself without checking.

That's the feeling right now, staring at a sealed box.
Twenty four words are about to exist because of a random process running inside that device. No one else will ever see them. No company will have a backup. No customer support line to call if I mess this up.
Just me, a pen, and a piece of paper that will briefly hold something worth protecting for the rest of its existence.

I know the steps. I've read them enough times to recite them in my sleep.
Generate. Verify. Write by hand. Never photograph. Never type it anywhere with a screen attached to the internet.
Knowing the steps and actually sitting down to do them are still two different things, apparently.

Maybe that hesitation is healthy. Maybe it means I understand what's actually at stake here, instead of rushing through it like just another unboxing video.
Either way, the seal won't stay closed forever.

Soon. 🟠

#Bitcoin #SelfCustody #Nostr #TheKeys #Medicine
❤️1
docAS21 profile picture
I've been writing about this moment for a while now.

The keys. The cold wallet. The step I kept saying I'd get to eventually.
I won a hardware wallet giveaway about a month before this event, tied to the unconference itself.

That day in Surabaya, I finally got to pick it up in person.
I held the box for a moment before it actually registered.
This was the thing. The actual thing I'd been reading about, writing about,
putting off for months because of cost, because of import hassle, because of my own hesitation.
And there it was, finally in my hands.

Later that evening, everyone gathered outside under the trees for graduation.
A certificate and a small plaque for finishing the free Bitcoin curriculum I signed up for months ago.
They called names one by one. Mine included.
I stood there holding both, and honestly, it hit harder than I expected.
Two years of DCA, alone at first.
Months of reading, writing, teaching friends who were skeptical at first.
All of it led to this one evening, standing under string lights with people who understood exactly why this mattered without needing it explained.

The wallet is still sealed in its box, actually.
I haven't set it up yet.
But for the first time, that feels like a formality, not a distant someday.
I know there's still so much more to learn.
Self custody, multisig, running a node, teaching this to people who've never heard of it.
Whatever I pick up from here, I want to keep passing it on, the same way this curriculum was passed on to me for free, by people who didn't have to bother.

The ceremony I keep writing about isn't just a phrase anymore.
It's something I'm about to actually do, and something I plan to keep sharing. 🟠

#Bitcoin #SelfCustody #Unconference #Nostr #Indonesia




❤️3
yoiyok · 2w
Ya, apalagi di bitcoin org terbiasa dengan don't trust verify. Karena mungkin abang dan komunitas nostr:nprofile1qqsz2sx4pt4eh6yfcw7s2ryuepym27c4dgn4ndyqsj5rmdv64yzkadqpzamhxue69uhhyetvv9ujuurjd9kkzm...
docAS21 profile picture
Betul bang. Makanya untuk sekarang, saya masih menggalang donasi menggunakan fiat terlebih dahulu. Karena seperti kata abang, untuk makan dan tidur saja mereka masih susah.

Cuma kemarin memang mau belajar untuk membuka peluang lebih luas lagi untuk mengumpulkan donasi. Karena sampai saat ini, masih banyak orang yang belum tergapai dan terbantu.

Makasih banyak ya bang masukannya, terutama dokumentasi dengan GPS itu menurut saya ide yang bagus sekali. Jadi nanti orang-orang tahu lokasi spesifiknya, dan nama-nama desa yang membutuhkan pun jadi bisa makin diketahui. 😊🙏
❤️1🤙1
yoiyok · 2w
Ya, apalagi di bitcoin org terbiasa dengan don't trust verify. Karena mungkin abang dan komunitas nostr:nprofile1qqsz2sx4pt4eh6yfcw7s2ryuepym27c4dgn4ndyqsj5rmdv64yzkadqpzamhxue69uhhyetvv9ujuurjd9kkzmpwdejhgtcpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhszrnhwden5te0dehhxtnvdakz7n25s6r belum bisa langsung ke...
anon bitcet · 2w
Kalau dana besar bisalah bikin ini itu, tp sedikit berpikir rasional, misal dana cm 10 juta IDR? Petakan daerah terisolir, apalagi kita bkn warga lokal atau kenal dg relawan lokal. Dmptkan data ...
docAS21 profile picture
Makasih banyak bang masukan dan insightnya. Jadi saat ini kami sedang mengumpulkan donasi, dan donasi yang sudah terkumpul kami kirimkan ke kenalan di sana (kebetulan kami sudah beberapa kali pelayanan baksos kesehatan di sana, dan ada orang lokal yang memang kami kenal baik dan dekat). Saat ini dana yang dikirimkan digunakan hanya untuk makanan saja. Karena menurut penilaian kami dan mereka, makanan merupakan hal yang terutama mereka butuhkan saat ini.

Dan orang-orang yang mendapatkan bantuan adalah desa-desa kecil yang bahkan mungkin tidak tercatat atau terliput bang, jadi minim sekali bantuan ke sana. Sebagian besar masih swadaya bantuan antar sesama penduduk di sana.

Untuk pasar atau toko lokal sulit sekali bang. Kenalan kami akhirnya beli di kota, lalu berkendara hingga beberapa jam untuk mencapai desa-desa terpencil tersebut. Contoh desanya adalah desa Manong, desa Ndoso, dan desa Ponta Wangka. 🙏

Kesulitan saat ini seperti yang diceritakan bang @Zed⚡ , saya sendiri saat ini sulit ke sana langsung, dan kenalan di sana sama sekali belum mengerti bitcoin.

Zed⚡ · 2w
Siap bro, kita support terus jika ada yang bisa dibantu, semoga lekas membaik saudara-sadara yg tertimpa musibah disana. 🙏