What is uPow ? uPow, which stands for Useful Power of Work, is a Layer1 implementation that's been launched in a fair manner, closely following the original Nakamoto consensus. It's a protocol crafted for decentralized inodes. These inodes exist to create decentralized Useful work. Each inode symbolizes a market driven by incentives, competing to deliver the best decentralized Usefulwork.
uPow adopts a distinctive approach to the conventional blockchain. Rather than utilizing computational power for solving arbitrary puzzles, we channel this power into accomplishing useful tasks. We've developed a consensus mechanism that draws inspiration from PoW (Proof of Work), DPoS (Delegated Proof of Stake), and PoA (Proof of Authority).
Inode miners receive their rewards in the form of uPow coins. You have the option to set up your own Inode, tailoring its incentive mechanism, to kick off your own inode, or you can become part of an existing Inode within the uPow ecosystem. Take, for instance, Inode1, an image detection Inode. It offers incentives to miners who contribute computational power for the creation of models.
- Maximum Supply: The total supply of uPow is capped at 18,884,643 units, ensuring a deflationary model to preserve value over time.
- Decimal Precision: uPow supports up to 8 decimal places, allowing for micro-transactions and enhancing user flexibility in transaction amounts.
- Block Generation: Blocks in the uPow blockchain are generated approximately every minute, striking a balance between transaction confirmation times and network efficiency.
- Block Size Limit: Each block has a maximum size limit of 2MB, optimizing the network’s throughput while maintaining speed and reliability.
- Transactions Per Block: Given the average transaction size of 250 bytes, with a typical structure of 5 inputs and 2 outputs, a single block can accommodate approximately 8300 transactions.
- Transaction Throughput: The network is designed to handle approximately 40 transactions per second, ensuring scalability and performance for users.
The uPow blockchain requires Python version 3.11.9.
PostgreSQL 14 is required for the database component of the uPow blockchain. Use the second Makefile to install and start PostgreSQL.
make -f makefile.postgres allThis will import the PostgreSQL GPG key, add the PostgreSQL repository, install PostgreSQL 14, and ensure the service is started and enabled to run at boot.
After installing the required software, run the db_setup.sh script to create the uPow database and configure PostgreSQL.
First, make the script executable:
chmod +x db_setup.shThen, execute the script:
./db_setup.shThis script installs additional required packages, creates the uPow database and user, sets permissions, and imports the initial database schema.
git clone https://github.com/upowai/upow.git
cd upow
pip install -r requirements.txt
uvicorn upow.node.main:app --port 3006Node should now sync the blockchain and start working
uPow uses a PoW system.
Block hash algorithm is sha256.
The block sha256 hash must start with the last difficulty hex characters of the previously mined block.
difficulty can also have decimal digits, that will restrict the difficulty + 1th character of the derived sha to have a limited set of values.
from math import ceil
difficulty = 6.3
decimal = difficulty % 1
charset = '0123456789abcdef'
count = ceil(16 * (1 - decimal))
allowed_characters = charset[:count]Address must be present in the string in order to ensure block property.
Blocks have a block reward that will half itself til it reaches 0.
There will be 150000 blocks with reward 100, and so on til 0.390625, which will last 458732 blocks.
The last block with a reward will be the 458733th, with a reward of 0.3125.
Subsequent blocks won't have a block reward.
Reward will be added the fees of the transactions included in the block.
A transaction may also have no fees at all.
python miner.py <wallet_address>