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👾 running bitcoin 🎲 solo miner 🧡 value4value

Do you want to understand how work difficulty affects how often your Bitaxe submits shares to a pool and why it varies between different pools?

Let’s break it down in this thread🧵

👾 Hash

Although a Bitaxe with 1TH/s generates 1 trillion hashes per second, not all hashes are submitted to the pool — this would be equivalent to a DoS attack, wasting bandwidth and resources of the stratum pool server.

🏋️ Work Difficulty

Therefore, an individual work diff is set for each worker, meaning that only shares with a diff higher than the work diff are submitted.

In the stratum protocol known as .

💡 To find a share with difficulty 1, your miner needs to generate around 2^32 = 4'294'967'296 = 4.29G hashes.

✉️ Shares

If a hash fulfills all necessary criteria and the nonce difficulty is higher than the work difficulty set by the pool, it is submitted to the pool as a share.

⏱️ ckpool: the work difficulty for a worker is adjusted so that on average 20 shares per minute are submitted — equivalent to 1 share every 3 seconds. This results in approximately 1'200 shares per hour.

⏱️ public-pool: the work difficulty for a worker is adjusted so that on average 6 shares per minute are submitted — equivalent to 1 share every 10 seconds. This results in approximately 360 shares per hour.

📡 This is ultimately about the communication between the miner and the pool — in other words, how often your miner submits shares to the pool per minute and how many data packets need to be sent/received/processed.

📈 5 to 20 shares per minute provide a reasonably meaningful hashrate to continuously verify that your miner is working correctly.

⛏️ Whether worker <1> submits 20 shares per minute, each with a nonce difficulty of at least 600, or worker <2> submits only 6 shares per minute, each with a nonce difficulty of at least 2'000, in the end, it amounts to the same thing.

⛏️ Both have performed the same amount of work (20×600 = 6×2000 = 12'000×1), the only difference being that one submits "many easy" shares while the other submits "fewer difficult" shares.

About (only) 250 million years ago, Pangaea existed. In this supercontinent all land masses of the earth were connected and surrounded by a single superocean, called Panthalassa🤯

At that time, Switzerland🇨🇭 and Austria🇦🇹 were located directly on the ocean🌊

Can you spot it?👀