Ya que parece ser que has descargado la blockchain al completo, permiteme sugerir la alocada idea de aprovechar y ejecutar un nodo aprovechando la situación. Es una manera bastante sencilla y barata de contribuir a la red, ya que solo hace falta un equipo conectado a la red el máximo tiempo posible.

Es bastante sencillo, solo tendrías que seguir estos pasos

• Tener un monedero de Core
• Tener toda la blockchain descargada
• Abrir el puerto 8333 en tu router y pc

Y ya tendrías tu nodo listo!

Si decides hacer esto, es recomendable que el equipo esté enchufado y conectado 24/7, y para comprobar que lo hayas configurado correctamente, puedes buscar tu ip en https://bitnodes.io/ y te dirá si realmente hay un nodo en tu IP o no

I've checked this, and the closest I can get is with yellow tiles; which do not generate a contrast big enough to be readable with a QR scanner.

Nevertheless, I've made an alternative: the whole code covered with flat tiles:

I've only screenshoted the code, since it's the only thing that changes; BTC logo is still the same

It's a bit more expensive, I guess 70€+shipping would be the right price for this one, but now again, as I explained in the other thread, I'm doing all the calculations based on a minimum profit (around 5€), so I'd have to give some thought to it

I can look into it, but it all depends on the blocks actually existing or not; not every shape/size is available in every color, and that may pump the price up a lot. I'll see if I can get at least the QR on orange tomorrow



Already done that on the first post https://bitcointalk.org/index.php?topic=5234091.msg54060736#msg54060736
The only diference is that the digital model is a blck/grey base with white block; and the digital model is a white base with black plates



Editing to add the said already made code. Needless to say, different bricks were used because I didn't think it would take so many of them and almos ran out of them

Si mal no recuerdo, los monederos de Core no tenian semilla, aunque puedo estar equivocado (que seguramente lo esté).

Por lo demás, si tienes el archivo wallet.dat, no tienes que temer por nada, lo puedes abrir o bien como indica nuestro compañero marcando la ruta de donde está la blockchain descargada, o bien usando un cliente Lite (que no descarga los creo que 300GB de cadena) y dandole a "abrir..."

First of all, I'd like to apologize if I'm posting on the wrong section, but I believe that this is the closest to my intentions. If you really believe this shouldn't go here, please point me out to where I should move to thread.

Having said that, and as it has been discussed here, I'm starting a costum Bitcoin related LEGO crafting stuff that I don't really know how to describe. Point is, I've already made my first (not vevry complicated) design, and that's what I'm selling!

What do I mean saying "I'm selling the design"? Well, it takes quite some time to think about a model, then craft it and make sure there are no issues with it. For that, I use a designing software, so once the design is 100% ready to be sold, I bring it here, if anyone is interested in buying, s/he buys it and then, I order brand new pieces (let's play safe, we don't want no COVID-19), and once it's assembled, I ship it to the buyer.

Now that the basics are explained; here comes the first design:



What am I seeing? Welp, I know it may look kinda basic, but that's the http://Bitcointalk.org QR code (fully functional), followed by a BTC logo (okay, yeah, it's basic but I had to start somewhere).

And the funny stuff, what is the price for this? You are looking at a 64*32 LEGO(branded) piece, so if any of you has ever played with LEGo, you already know that it's not the cheapest material, altough it's quality is amazing. This model will be selling for 60€(EUR) + shipping fees.

Is this a final model? No, if you are interested in doing so, some things can be changed; but with those changes, price will also change.

Can I buy more than one? Definately; and even better, that will "reduce" the shipping fees, and maybe, the original price (in case I get a discount). This last part also applies to different people buying it at the same time.

I've already explained in this thread how the pricing is calculated, in case you are interested in knowing so

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I leave this open to further questions that may arise, or to constructive criticism. And aga,in; if I'm not in the right section, please do redirect me to where I should move this. I believe it should be here because it's a physical good and it's kinda collectible, but I'm not 100% sure

Kind regards

Pues primera extensión de otros 15 días.... Vamos a ver como avanza la cosa

Sep, le ha costado varios intentos al lector por defecto del movil, pero lo habia leido sin problema. Este segundo ha sido bastante más rapido; y está bien saber que es por el contraste más que por el propio color.

Todos los dias aprendes algo antes de irte a la cama...

Entonces entiendo que lo que importa no es el color, sino el contraste que se crea?

Hice la prueba del modelo digital con fondo azul y piezas "negras" en verde pistacho y no hubo manera de leerlo...

Aprovecho la ultima respuesta para preguntar si alguien sabe mas o menos como funcionan los QR a nivel tecnico. Sondeé un poco el asunto en el foro en ingles, y entre las dudas y sugerencias, ha salido el tema de que posibilidades de colores se podrían usar


Se agradecen respuestas

Nah, the main idea was to use it as a public key, to show people in case you had a crypto-friendly shop/tips/whatever. The private key idea is really un-ideal, because the "client" would have to trust I didn't use his loaded wallet after I assemble the code, and besides, the dimensions of the board are far from ideal for something you want to keep private


Not a bad idea, but fortunately, the digital design is there to rescue us on those events!

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Btw, I'm still unsure as to where I could place a new thread announcing this...

Services board has been flooded with crap for quite some time so no point going there.... General marketplace seems to have the same issue and Collectibles looks like the "most" accurate, but I don't really think it should go there...

Some help is appreciated

I'm not really an IT guy, so I have little idea how QR really works... I can make some experimenting with the digital model, but an explanation from an expert would be appreciated

Didn't know that one, thanks for the advice!

Hmmmm, I guess I could do that to the original Imgur post and update the OP...



Yup, I'm well aware, and it's what I'm using to do the calculations for the Bitcoin.org example above

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Edit: Hope that's a better size

Checking the Spanish Post Service site for an estimate..... 30€ average for all international destinations. But as the previous post, it's just an estimate; I'm sure some cheaper shipping agency can be found

That would depend on the size; the one I crafted would be the "smallest" scale (1:1) and it's a 31*31 square (29x29 code + frame). I've checked the official LEGO site, and doing some math, only the raw materials would cost somewhere between 40 to 60 € (shipping included), and to that I'd have to add the shipping cost to the buyer. It's also true that once I had the design I'd design it to try to be cheaper in materials; as an example, a 1x1 block costs 0.06€ and a 2x1 block costs 0.07€... So each case would have to be calculated on the spot....

As it's a pretty fair question, I'll take the QR for bitcoin.org that I've seen above and crunch some numbers and when I've done that, I'll come back with an answer!

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So here comes the math!

Using a white 32x32 base, single piece, and putting a frame around the code (like the one I've made with my wallet), there are 2 options:

• Using flat bricks for the blacks and leaving the whites non-flat (cheaper)
• Using flat bricks for blacks and whites (more expensive but looks "better")

I'm going to be using whole numbers, so I'll round up everything to make all easier

The white base is ---- 9€

The frame (any color) ---- 5€ (this may be optional?)

The black flat tiles ---- 10 €

The white flat tiles (optional) ---- 10€


So altogether, the raw materials would cost... 34€
Shipping costs that LEGO wants me to pay ---- 6€

So materials cost 40€ altogether, for this QR with a not flat frame and all the code tiles being flat.

To that, I guess that I'd add some cost to cover for my work and effort (I'm guessing a small 5/10€?) or nothing and leave it up to tips?

And shipping costs to the buyer... (I really don't have much idea on this one)[/s]

Something was not adding up, so I double checked and it turns out the bitcoin.org QR is 25x25 instead of 29x29 (a good example of why each model would be priced differently).

I'm looking into a more accurate estimate, but I don't think it will change much

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I'm not sure this has been helpful to understand how I'd estimate the price o a 1:1 scale QR

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Final (I hope) update to this one example

After redoing the bitcoin.org code ----> just a 25x25 white background, with no frame and only using flat black tiles; 21€ on bricks, plus 6€ on the shipping. So seeing the little difference with the original calculations, I'll assume they are accurate enough, except for the frame and base

I'll leave the digital design so that you see what I mean with "a 25x25 white background, with no frame and only using flat black tiles"

I'd sure be able to, but the wallet QR was the first thing that came into mind and I barely had enough blocks to do it. Nevertheless, anything can be designed and then made, I recall a software that was just for that...



I know,but thinking about "why on earth would someone on bitcointalk want to buy something done with LEGO?" not much came into mind, except for the QR code. I guess that the BTC icon can also be done, but I'm not sure about the dimensions it would need (I can give it some thought though). The QR was something "easily measurable" but a real pain in the ass (and eyes) to put together.



Yup, that was mostly what I thought; to have a wallet with "sentimental" value hand crafted or something "cool" a bussinness accepting BTC could have to offer something different

As many of you may already know, many countries have started quarantaining because of our latest virus... I've been lucky enough of being home and while doing a closet cleanup, I found my old LEGO sets. As the days are long enough, I thought it'd be funny to see if I could get a LEGO made QR code read on a scanner, so I tried it with one of my BTC addresses: 33uqr6sPXin4zbxDjQbXFtvWzcK4FB1sXp

Now, this is the original QR, and following it, the one I crafted





Surprisingly, it worked! (I mean surprisingly, because I almost run aout of small blocks and had to start improvising with triangles and stuff) You can try it too, zooming out the screen and reading it if you do not really believe my words.

Now, getting to the point, I thought this was a rather funny activity the end result, had I had all the right blocks, would have been really neat. So I've given it a thought, and I'd be willing to start a kind of service here on the forum, to people who may be interested in having a wallet QR hand made with LEGO blocks! But, since it's a rather rough idea, I'll just place it on service discussion, and then, if I see people would really be interested on it, I'd consider moving it to..... I guess collectibles?

Waiting for your feedback!!

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Edit: In case someone is wondering about the measures, 24,7cms * 24.7 cms

Pues por suerte he encontrado otra caja con mas piezas pequeñas, y he podido terminarlo.



Sorprendentemente, el lector QR del movil lo ha detectado sin ningun incidente, asique me parece una idea viable desde el punto de vista tecnico

Puedes probar a escanear la imagen si no te convenzo ;P

Pues a raiz del confinamiento, estoy teniendo mas aburrimiento del habitual, y en una de estas me ha dado por ordenar un armario de casa. Ahí me he encontrado con un monton de antiguos bloques de LEGO, y se me ha ocurrido una idea: Si hago un QR de un wallet, seria escaneable?

Por ahora la cosa va así, y dudo que pueda terminarlo en su totalidad porque necesito bastantes más ladrillos de los que creia tener, pero la idea ahí queda



Aquí os dejo tambien el QR original, para que veais (o intenteis ver) las similitudes y expectativas que tenia

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Y para finalizar, como me lo he pasado bastante bien con la tonteria, se me ha ocurrido: creeis que habría un interes para un servicio como este? Gente con un cariño especial a un wallet o un negocio que acepte BTC.... y en caso de que si... Cuanto os podría parecer un precio razonable por esto? (a tener en cuenta que son LEGO originales y no marca prepucio)

En ese caso si



Cambiando un poco de tema, me esta sorprendiendo lo poco que se han alterado mis rutinas estos dias (salvo la parte de aburrirme algo mas). No se si os habra pasado algo similar