CORE v30.0.0The current FixedCoin release is availableDownload Core

THE FIXEDCOIN NETWORK

Clear rules.
Verifiable progress.

An open-source blockchain powered by SHA-256 proof of work.
Explore the parameters that keep the network running.

Verified snapshot55,077

FixedCoin mainnet · block 55,077

Node verified 31 Oct 2026, 08:24 UTC. Live height loads from the explorer.
Explorer ↗

01 / NETWORK PARAMETERS

The rules that
power FixedCoin.

FixedCoin uses open, verifiable rules for supply, mining rewards and difficulty adjustment.

Current FixedCoin network parameters
Network ruleCurrent parameterFixedCoin mainnet
Supply limit21,000 FIX
Difficulty adjustmentASERT · every block
Halving interval52,560 blocks
Current block subsidy0.10466639 FIX
Target block interval600 seconds

The supply limit is not the circulating supply. Coins are issued progressively through proof-of-work mining.

02 / ASERT

Responsive difficulty.
Adjustment every block.

ASERT adjusts difficulty after every block, using a 24-hour half-life and a 600-second target interval.

The half-life controls how quickly difficulty responds. It is not a waiting period between adjustments. Actual block times vary with mining conditions.

Explore the source code ↗

03 / MINING REWARDS

A predictable schedule.

The current subsidy is 0.10466639 FIX per block. Each halving divides the subsidy by two, rounding down to whole satoshis.

CURRENT SUBSIDY0.10466639

FIX / block

NEXT HALVING105,120

0.05233319 FIX / block

FOLLOWING HALVING157,680

0.02616659 FIX / block

Subsidies exclude transaction fees. The maximum supply is 21,000 FIX, and unclaimed rewards are not reissued.

04 / SUPPLY TRANSPARENCY

A limit.
Not a balance.

21,000 FIX is the network limit. It does not describe coins already issued or circulating. Issuance, spendable funds and circulating supply are different quantities.

The historical frozen output

One output of 1,604.85615714 FIX, created at block 627, has been frozen by consensus since block 628. Other outputs at the same address are not automatically frozen.

The output remains in the UTXO set but cannot be spent. It must not be counted as spendable funds or automatically described as destroyed.

View the frozen transaction ↗
Genesis and the first block

The genesis coinbase records 1 FIX but its output is not spendable. Block 1 had a special 1,600 FIX subsidy. The frozen output is a separate historical event.

Core network constants

The genesis block, address formats, transaction format and historical frozen-output rule are part of FixedCoin’s consensus history.

05 / CONNECT TO THE NETWORK

Start with a node.

Core discovers peers automatically. These existing network endpoints can help you connect.

SEED 01node1.fixedcoin.org:24768
SEED 02node2.fixedcoin.org:24768
Mining
SHA-256
P2P port
24768
Default RPC port
24767
Coinbase maturity
100 blocks

RPC is a private node interface. Keep it restricted and use your node’s configured port.