Since I didn't know the bounty can only go to one person, I'm adjusting the rewards:
1st place gets the Bounty,
2nd place gets 1,000 sats from me, and
3rd place gets 500 sats!

Next time, it will be in HealthAndFitness too! This is my first time.

Mission failed, we'll get 'em next time.

The site is currently inactive due to application improvements. Refunds have been issued to everyone who purchased pixels using satoshis!

Thank you so much for taking the time to share such a detailed and sharp analysis! Your feedback on the selection algorithm and blockhash mechanics is spot on. It's rare to get such high-quality, technically sound input, and I really appreciate you pointing these nuances out.

You are completely right on all three points:

1. Modulo Bias: While 2^256 mod 10,000 introduces a mathematically negligible bias, using rejection sampling is indeed the gold standard for pure uniform distribution.
2. Entropy and Independence: Deriving all winning positions directly from a single hash creates statistical dependency. Switching to indexed hashing, such as SHA-256(blockhash || i) for each winning slot i, ensures true independence across coordinates.
3. Mempool / Front-running Risk: The risk of someone tracking the chain tip to front-run the final purchases is a crucial practical issue.

Here is our action plan to address these points:

1.Future Block Commitment: To eliminate any possibility of front-running or predicting winning coordinates, we will lock the game state as soon as the last pixel is purchased and declare that the draw will use a future blockhash (e.g., target block N + 5). This guarantees that nobody - including us can know or influence the hash in advance.

2.Independent Seed Generation: We will update the logic to compute each winning coordinate independently using SHA-256(blockhash || i).

3.Rejection Sampling Implementation: We will implement rejection sampling over the modulo operation to ensure strict mathematical uniformity across the grid.

Thanks again for helping make the project fairer and more robust. People like you make building in this space worthwhile!

100 sats for one pixel, 200k sats on the line. That’s one hell of a gamble.

What would be more acceptable to people? How much should one pixel cost?

That is true. And here comes a big fundamental question: Are we as a human race really as advanced as we think we are, considering that we continue to wage wars? Are we ready to leave our differences behind and live in peace, rather than in fear of whether our neighbor might attack us to seize our resources?
At the moment, we are not. Not as long as our priority is how to colonize Mars and the Moon, rather than protecting our nature and wildlife. Because everything and everyone matters.

You are completely right that the state actively enforces its monopoly on money through taxes and regulations, and that most people naturally follow the path of least resistance.

However, claiming Bitcoin cannot succeed misses the fundamental economic and technological mechanics driving its adoption. Historically, no asset becomes a medium of exchange before first proving itself as a store of value. People naturally spend depreciating fiat currency and hoard hard assets with a fixed supply, which is standard economic behavior rather than pure laziness. Furthermore, convenience is a solved engineering problem.

Bitcoin's base layer is built for final settlement, while Layer 2 technology like the Lightning Network handles instant, low-cost microtransactions far more efficiently than traditional payment processors. Bitcoin does not rely on ideological motivation or forum debate to succeed, but on economic necessity.

As central banks continue to dilute fiat currencies, individuals turn to alternative assets out of self-preservation, a pattern already visible in high-inflation economies worldwide. Bitcoin does not need to instantly replace fiat currency to achieve its primary purpose, by functioning as a censorship-resistant, non-confiscatable alternative, it strips the state of its absolute control over money and offers an unalterable choice to anyone who wants out.

The masses do not need to be libertarians or seek freedom. It is enough for the fiat system to continue eroding their savings through inflation and money printing. In countries with collapsing currencies (Argentina, Nigeria, Turkey, Venezuela), the adoption of Bitcoin and cryptocurrencies is not a philosophical choice, but a matter of survival.

Hey! You didn't do anything wrong, but since it's an open-amount invoice, your wallet lets you type the amount manually.

Just enter 2300 sats manually when paying, and don't forget to add your PX-.... ID in the note field so the canvas can verify it!

Also, make sure to download TXT Receipt so you have your exact pixel coordinates! Thanks for the support!