Last Notes
🧀 Cheese + Bitcoin = ❤️
Adding Bitcoin-friendly merchants on @`BTC Map` is fun work. Often, these are brief interactions via email, followed by a thank you or a tip in sats. But it's much more fun when someone sends something they've poured their passion and energy into.
Like David from d'r Senn, cheese master and "bacteria herder" from the German Allgäu region.
While we in the Netherlands are proud of our Edam and Leerdammer, David delivers true Allgäu cheese craftsmanship. He ages his cheeses in a 300-year-old vaulted cellar and calls himself a "bacteria herder", because it's the microorganisms that make the magic happen.
His motto? "Cheesemaking is like baking a cake, except sometimes a year goes by before you realize it didn't turn out right".
David, thank you for this delicious tasting package!
https://blossom.primal.net/3308762d4ad2d0bef379c4ee9cc33370c1be7ce7dd82f878d013484806596c01.jpg
https://blossom.primal.net/1d53ec50f4f3daf6ad60ef1bdfb5de1c889bcd6dd8d138b5eef0bd165675dee4.jpg
Where can you buy his cheeses with Bitcoin?
Wangen im Allgäu
https://btcmap.org/merchant/39079
Isny im Allgäu
https://btcmap.org/merchant/39080
Leutkirch im Allgäu
https://btcmap.org/merchant/39082
#bitcoin #btcmap #cheese #allgäu #bacteriaherder #satsforcheese
https://noderunners.network/en/conference
SEPTEMBER 19, 2026
KOEPELGEVANGENIS ARNHEM
A historic former prison turned cultural venue. Pretty fitting for a day about breaking free from fiat.
@conference
https://blossom.primal.net/48d3f0f1da972bd79f9acafe011954acdda3e45c7f44ded95c45b31bcc084799.mp4
Here’s TikTok for comparison. It’s the 3rd highest in my cellular data usage. I’m on it almost as much as I am Nostr but it uses way less data.
https://blossom.primal.net/71feb2034709a7a384f98c2e90d65a35da3880a92eaad86a657019687e9739b4.jpg
Even primal uses a lot compared to other social apps. I suspect uncompressed video is a huge problem. TikTok is ALL video content and I use it a lot and it uses far less data than any of my nostr clients.
In terms of data usage? All nostr clients are pretty bad on this front.
Remember when tokens used to refer to altcoins and not the input/output for LLMs?
About 10 years ago, bitcoiners were so educated that they could explain everything wrong with Ethereum, Zcash and Monero.
Today, it’s the shitcoiners who school bitcoiners on how Bitcoin works.
Truly sad and pathetic.
I happened to do that just yesterday.
'lima' works quite fast to create a VM on any Linux/Mac (windows idk)
Then it's the hermes oneliner command and voila. You're set.
Lima install is 1-3 liner command + a couple commands to create the VM: https://lima-vm.io/docs/installation/
Inspired from https://lnlink.org where i created stripe-inspired core-lightning payment links (commando connection string, product info, etc) from base64 encoded binary data in the url
Nature is healing. I spent all day at the lake and I didn't see one person with a Trump flag flying in their boat.
https://blossom.primal.net/c8cd9d88dc993b4be092ec5c470c32f47d6175663aa57b6777dc5f935f88e05d.png Another round of https://coinjoin.nl entered the mempool 🕶️
Old video but still relevant
https://youtube.com/watch?v=1ihqjjL2eMQ
https://nostr-resources.surge.sh/
On the water, on my boat is even better!
No, but a hot dog has rolled off before. The sunnies loved it 😅
I'm a fan of custom feeds and have earned spells in Ditto for a while. I'm s fan of this direction.
Oh trust me I have unlimited, or I’d be pissed instead of making silly memes about it 😂
😂 @nprofile…wedf by his own admission likes his steak ashen
Hope you enjoyed the Finding Home screening, though
AT&T trying to get me off this legacy unlimited plan but I need it 🤣
It’s not the only reason but it’s a big one. Uncompressed video is a huge problem on Nostr.
😂
https://blossom.primal.net/fba1da1900d6bf475dc05711fd36fca66908b792e777f63e80116d09db3848f7.jpg
Its funny how regular buildings in the centre are stunningly beautiful
We sorely need video compression.
Okay okay, why is it not BTC only?
https://blossom.primal.net/bc382ecc1bf160d3eb6eb9d008577deb7b0b2cf45feb13018bdd26b0e0eb31be.jpg
I reset my mobile data stats just 2 days ago. Installed Wisp this morning 😅
https://blossom.primal.net/97f1592accfef53f979564c110d35cde9b9a1b5d438579895792b228c2fcf99d.jpg
woof woof! blocky is here..
Let's Fo Live 🔵
https://mar101xy.com/live
https://media.letsfo.com/images/2026/05/17/farcry-4.webp
#naddr1qq…grss
#livestream #letsfo_live
Looking like a very chill event! Unfortunately couldn’t make it. Spotting @npub1spd…q6j7 👀. Looking awesome @npub134d…yggk
How do you guys handle apps that only support Google and nsecs? #asknostr
#nevent1q…9vcy
STAMMTISCH #252
⚠️NUR LIVE⚠️
Sonntag 20 Uhr
Vorstellung des neuen
EINUNDZWANZIG Magazin
mit Herausgeber @nprofile…0uhx
Inkl zusaätzlichem recap 2.1 der @nprofile…8esg 2026
Richte hier deine Erinnerung ein
👇🏼📖👇🏼🤿👇🏼
https://x.com/i/spaces/1NGarrlgMWNJj
@nprofile…vq2z
@nprofile…6sav
@nprofile…pufj
https://blossom.primal.net/c05de093bcf32ad11205853afb73468701adfe4a18998806a8d27886c2ca5070.mp4
If time is your most valuable asset, why is it the easiest thing to lose? Because it’s hidden inside everything— especially the money you trust.
Own your time #ElRegalo
https://blossom.primal.net/e72b2080b00013d5b2e668c162cece54f4df9088efb1723039ba6cad22ea8000.jpg
Thank you to the Bitcoin FilmFest for providing the gallery space and the opportunity to exhibit my work in Warsaw. 🎨
A special part of my project is the conversations I have with fellow plebs. Everyone has their own story, their own perspective, and their own version of Bitcoin. When people share these thoughts with me, they find their way into my paintings—in the form of symbols, details, and hidden references.
This is how the artworks evolve into something that reflects not only my own vision, but also the stories of an entire community.
Thank you to everyone who has shared their ideas, experiences, and vision
@nprofile…m6ku #Warsaw #BitcoinArt #Plebs #ContemporaryArt #BitcoinCulture
https://image.nostr.build/58c2a01aa7fd33f181903a9fab61daeb479e8953742894fd48439d4fe7264b01.jpg
Thoughts on unruggable Cashu mints in trusted execution environments (TEEs). Sharing current research and looking for feedback.
Idea: Generate Bitcoin reserve keys and Cashu signing keys inside a TEE so operators never access them.
Goals:
- Minimize rug risk (ideally to ~0)
- Push operators toward non-custodial status
# Risk 1: Malicious mint updates
Users can verify the software running inside a TEE, but operators could later deploy a malicious fork.
Potential mitigations:
- Infrastructure provider enforces which software may be deployed.
- Separate KMS with policies from the TEE allowing only audited/signed software to access keys.
- Immutable mint: disable updates entirely. Upgrades require deploying a new mint and users migrating funds, similar to smart contracts.
# Risk 2: Rollback attacks ("time travel")
An operator could restore an old database snapshot, allowing previously spent ecash to be spent again and inflating supply.
Possible mitigations:
- Append-only storage enforced by the TEE/provider so spent notes can never be erased.
- Seal the database inside the enclave and prevent external access. Combined with update protection, this appears to eliminate rollback attacks.
# Risk 3: Mint shutdown
The operator can always turn the mint off, making reserves inaccessible.
Potential solution:
@lukechilds proposed an elegant emergency exit mechanism. Reserve UTXOs contain a secondary spend path that activates after a period of mint inactivity. A third party (e.g. a multisig) holding a copy of the mint database could continue honoring withdrawals.
During normal operation the mint periodically rolls reserves forward, extending the timeout. If it stops, the emergency path activates.
A more ambitious direction is committing the spend book as a Merkle/nullifier tree. With the right scripts, users may be able to withdraw unilaterally by proving their ecash has not been spent. This could largely solve risks 1-3 simultaneously.
# Conclusion
We haven't cracked this nut completely yet, but the progress over the last few weeks has been remarkable. The mere existence of plausible solutions is incredibly exciting.
Imagine if we could pull this off. David Chaum invented ecash in the 1980s, and researchers spent decades trying to make it trustless. Then Satoshi invented Bitcoin, and the world largely moved to the blockchain paradigm.
It would be an enormous achievement if we could finally solve the trust problem of Chaumian ecash by rebuilding it on Bitcoin and its more expressive L2s, combining the best of both worlds: a scarce, immutable base layer with trust-minimized ecash on top, offering strong privacy, instant payments, near-zero fees, offline transactions, and amazing UX.
We're half through the weekend.
https://cdn.nostrcheck.me/994a2ecf831673b0a4ba96cb47134a6090c59afb9a4a56b2f041235f7ae49327.gif
https://cdn.nostrcheck.me/31525c763dd80147124641fa290ea243adaa30d2d60c78cb4cd1e1c33f1ea539.gif
Someone could spam the op_return on the timechain with it 🚬.
This is the dad on the left.(Btw first time the note in question loads for me anywhere lol)
https://cdn.nostrcheck.me/1e6db741c74f57d2a3b7eb2970930610f9e580214ecb742384c2cb222ff1184b.jpeg
