Steem is an experimental Proof of Work blockchain with an unproven consensus algorithm.
- Currency symbol STEEM
- 1.000 STEEM block reward at launch
- 10% APR inflation narrowing to 1% APR over 20 years.
Steem was announced on the Bitcointalk forum prior to the start of any mining.
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Rather than attempt to describe the rules of the blockchain, it is up to each individual to inspect the code to understand the consensus rules.
Just want to get up and running quickly? Try deploying a prebuilt dockerized container. Both common binary types are included.
To run a p2p node (ca. 2GB of memory is required at the moment):
docker run \
-d -p 2001:2001 -p 8090:8090 --name steemd-default \
steemit/steem
docker logs -f steemd-default # follow along
To run a node with all the data (e.g. for supporting a content website) that uses ca. 14GB of memory and growing:
docker run \
--env USE_WAY_TOO_MUCH_RAM=1 \
-d -p 2001:2001 -p 8090:8090 --name steemd-full \
steemit/steem
docker logs -f steemd-full
A list of some seed nodes to get you started can be found in doc/seednodes.txt.
This same file is baked into the docker images and can be overridden by
setting STEEMD_SEED_NODES in the container environment at docker run
time to a whitespace delimited list of seed nodes (with port).
The mining algorithm used by Steem requires the owner to have access to the private key used by the account. This means it does not favor mining pools.
./steemd --miner=["accountname","${WIFPRIVATEKEY}"] \
--witness="accountname" --seed-node="52.38.66.234:2001"
Make sure that your accountname is unique and not already used by someone else or your proof of work might not be accepted by the blockchain.
See doc/building.md for detailed build instructions, including compile-time options, and specific commands for Linux (Ubuntu LTS) or macOS X.
See doc/testing.md for test build targets and info on how to use lcov to check code test coverage.
Minimum 8 GB RAM (16 GB Recommended). 32 GB disk for full node or 12 GB for a consensus node. SSD is preferred. Any CPU with decent single core performance.
On Linux use the following Virtual Memory configuration for the initial sync and subsequent replays. It is not needed for normal operation.
echo 75 | sudo tee /proc/sys/vm/dirty_background_ratio
echo 1000 | sudo tee /proc/sys/vm/dirty_expire_centisec
echo 80 | sudo tee /proc/sys/vm/dirty_ratio
echo 30000 | sudo tee /proc/sys/vm/dirty_writeback_centisec