Barcelona Bitcoin Only

⚡ 4 DÍAS ⚡ En 4 días arranca la @bcc8333 🔥 Aquí va un recap del lineup de talleres. 13 workshops, todo hands-on. Esto es lo que te espera: VIERNES 29 🛡️ Watch guard Defense for cold wallet — live demo with @we_satoshis ⚙️ @fedimintdev workshop con Oscar @oz_21m ⛏️ Massive Virtual Mining con @oomahq --> Montar un nodo minero (con foco en privacidad) con Stratum server, exponerlo a internet y alquilar hashrate. 🔨 Pleb Mining hands-on con @BitMaker_ de @BitronicsStore 🔫 Simulación práctica: robo bajo coacción y recuperación de #Bitcoin con @rewindbitcoin. Imparte @landabaso 🔍 Am I exposed? — am-i.exposed — Analiza la privacidad de tus transacciones con... speaker sorpresa ;) 🖥️ Hands on, un PC bitcoiner con @ChavoGnuGrowers 🧰 @BitBoxSwiss hands-on con @PakoVM SÁBADO 30 🔩 Nueva versión de StartOS y novedades de @start9labs este año, con @The_Cryptosquid 🤝 @vexl P2P hands-on with @ViliamKlamarcik 🔥 Minería doméstica con @N21PoW ⚖️ Residencia y LLC en Próspera con @fserer 🔪 Corte de carne durante la BBQ con @Bebop2077_ ---------------------- 📍 29 y 30 de mayo en #Barcelona Cold wallets, mining, privacidad, soberanía, nodos, P2P... No es teoría. En los talleres vamos a tocar, romper y construir. No te lo pierdas. bcc8333.xyz

Ens veiem demà al BitDevs!

@BcnBitcoinOnly's signet playground now includes a Frigate service. Connect Sparrow Wallet 2.5.0 (in signet mode) to localhost:60602 instead of localhost:60601 to use Frigate instead of Fulcrum. github.com/BcnBitcoinOnly…

Un altre mes seguim!! Cinquena edició del BitDevs Barcelona! Dimarts 26 de Maig! Més info a la web: bitdevsbarcelona.org/socratic-semin… Recordeu proposar els vostres temes al github: github.com/Bit-Devs-Barce…

Dijous 21 de maig presento el llibre «El manifest bitcoiner»! Una anàlisi sobre la filosofia política darrere de Bitcoin i el canvi de paradigma que suposa. Després de la presentació hi haurà debat obert amb tots vosaltres, animeu-vos-hi!

@oomahq @sesi_the_man Catalunya, that place where Knotz friends and Core friends can became friends friends

El próximo 22/05 celebramos el Bitcoin Pizza Day. 🍕 Recordamos la compra de 2 pizzas por 10.000 BTC en 2010, la primera transacción comercial histórica. 📍 Can Pizza (Poblenou) a las 20h. 🔗 Historia: bitcointalk.org/index.php?topi… 🔗 Lugar: canpizza.eu/ca/can-pizza-p… ¡Nos vemos allí!

Hahah al final tots se sotmetran al poder de les matemàtiques. Mentrestant, els ecopijos d'aquí, se'n foten per què encara no han entès RES. Que atrevida és la ignorància

"Això de bitcoin és molt complicat, prefereixo utilitzar fiat que és més senzill" Com funciona el fiat vs bitcoin:

Tenemos el 3r PR Review Club en Español!! Día 27 de Mayo a las 5.30pm CET. Estaremos revisando #34489 github.com/bitcoin/bitcoi… Como es habitual, en el canal de Discord: discord.gg/XNK2hBw9vm

Bitcoin explicado de forma sencilla en Español Original Ingles: @matteopelleg

El proper dimarts tenim BitDevs!! Ja tenim alguns dels temes publicats a la web.

!!Recordad que hoy tenemos PR Review Club en Español!! Vamos a estar revisando #34628 p2p: Replace per-peer transaction rate-limiting with global rate limits

Dimarts vinent tenim BitDevs! Proposeu els vostres temes al GitHub i no us ho perdeu! github.com/Bit-Devs-Barce…

Saps com es connecta la teva wallet a la xarxa? Introducció a bitcoinbarcelona.xyz Xerrada clau sobre seguretat i autonomia: aprèn a connectar-te i aprofita els recursos que ofereix la comunitat. 🛡️⚡️ youtu.be/kjJ2qto8cjg

La definició gràfica més acurada de bridge que he vist últimament

Ya está disponible la intervención de @oomahq sobre el BIP-110 en nuestro último meetup. Una buena oportunidad para analizar los detalles técnicos de esta propuesta y sus implicaciones para el funcionamiento de la red. Puedes verlo aquí: youtu.be/eYXBNkTVcYE #bitcoin

@BitMEXResearch You asked, we delivered! We (@qatkkalhori @nebula21m @cpsola_ ) have been working on this topic and defined a distributed protocol for a quantum canary address generation. Details are in this paper: eprint.iacr.org/2026/618 and an initial prototipe here github.com/QCAP-org/QCAP

I think a lot of the skepticism I'm seeing about hashrate markets happens because most people don't understand how *extremely fungible* hashrate is, and image that renting hashrate implies a worker wearing overalls and a hard hat has to walk into a mining farm a configure specific machines to work for your DATUM gateway. In this post I'll speculate about how I suppose @Braiins has architected the backend of their Hashpower service. The attached picture is a diagram that represents a specialized piece of software called a "Stratum proxy". It's a simple program that accepts Stratum connections from ASIC rigs but instead of serving them mining jobs directly like a pool it connects itself to upstream Stratum pools to fetch mining jobs from them. Server farms simply connect their ASICs to the proxy and don't know where their mining jobs come from. Market participants tell the proxy where it needs to connect to deliver the hashrate they want (ideally to their own DATUM gateway), but they have no clue who will end up working on their mining jobs, and the actual ASICs that work on them can be changing all the time. You can think of hashrate as a physical commodity like a flow of water that a Stratum proxy can slice and chunk in real time, however is needed by the market at any moment. So farms place their asks, and buyers place their bids. If their bids match the asking price of any farms and there is enough capacity avaiable they will receive a chunk of the total hashrate. If there aren't enough bids to absorb all the supply the excess capacity works for a normal Stratum pool that the farms choose (the sink in this diagram). Note that for a hashing farm there is no downside in connecting their rigs to a Stratum proxy instead of a pool. They can ask for a certain price above what they would earn at the pool, and if the market doesn't take it they will mine for the pool anyway. Now what happens when a farm "rugpulls" the buyers? Let's say Farm B is bombed and 250 Ph/s of supply suddenly disappear from the market, permanently. Capacity would drop instantly by 250 Ph/s and price would surge accordingly, but bidders who are offering enough sats for the remaining supply would have just tens of seconds of downtime (if at all). In addition, in its capacity of trusted 3rd party the proxy operator can monitor that the hashrate is actually being delivered and only release the sats of the buyers to the farms if they're honoring their commitments. As far as I know there is no open source Stratum Proxy. Braiins has one (Braiins Proxy) but I don't believe is open source. If such a thing existed mining farms could easily sell their hashrate directly from their websites to whoever wanted it.

🥁 NUEVO SPEAKER 🥁 @lunaticoin se une al lineup de la @bcc8333 🔝 Referente del mundo #Bitcoin en español. Desde 2018 conectando y amplificando la voz de las mejores mentes hispanohablantes del ecosistema. Podcaster con más de 300 episodios sobre soberanía, autocustodia y privacidad. Formando de 0 a Bitcoin libre en @semillabtc. Se rumorea que nunca duerme. 📍El 29-30 de mayo en #Barcelona No faltes. bcc8333.xyz