Ethereum Classic has a fixed, algorithmic monetary policy defined in protocol code. The total supply of ETC is capped, the emission schedule is predetermined, and no committee or governance process can alter it. This makes ETC a “sound money” asset: its supply curve is known in advance and enforced by consensus rules.
ECIP-1017: The Monetary Policy
ECIP-1017, proposed in November 2016, took effect at block 5,000,000 in December 2017. Before it, ETC had the same uncapped emission as early Ethereum: a flat 5 ETC per block, with no planned reduction and no supply cap. ECIP-1017 changed that in two ways:
- Block rewards fall by 20% every 5,000,000 blocks, a little over two years at recent block times.
- Those reductions bound total supply, which approaches a maximum of 210.7 million ETC.
The Emission Schedule
The reward structure follows a simple, predictable pattern:
- Era 1 (blocks 1 to 5,000,000): 5 ETC per block
- Era 2 (blocks 5,000,001 to 10,000,000): 4 ETC per block
- Era 3 (blocks 10,000,001 to 15,000,000): 3.2 ETC per block
- Era 4 (blocks 15,000,001 to 20,000,000): 2.56 ETC per block
- Era 5 (blocks 20,000,001 to 25,000,000): 2.048 ETC per block
- Era 6 (blocks 25,000,001 to 30,000,000): 1.6384 ETC per block
Era 6 is the current era. Each era reduces the per-block reward by 20% from the one before, and the pattern continues indefinitely, with rewards approaching but never reaching zero.
Maximum Supply
The 20% reduction per era makes issuance a geometric series, so total supply converges instead of growing without limit. ECIP-1017 sets out the bounds, counting the 72 million ETC in the genesis block: total supply will not exceed 210.7 million ETC, a ceiling that assumes two uncles in every block, and at the uncle rate of the network's first era it comes to no less than 198.5 million. Both figures follow from the emission formula encoded in the protocol, not from a governance target.
No additional ETC can be created outside of this schedule. There is no mechanism for minting, no treasury allocation from block rewards, and no inflationary funding for development teams. Apart from the 72 million ETC in the genesis block, every ETC in existence was produced by a miner solving a valid proof-of-work block, at the reward rate set for that block's era.
Comparison to Bitcoin
ETC's monetary policy shares structural similarities with Bitcoin's:
- Both have a maximum supply (Bitcoin: 21 million BTC; ETC: at most 210.7 million ETC).
- Both reduce block rewards on a predetermined schedule (Bitcoin halves every 210,000 blocks; ETC reduces by 20% every 5,000,000 blocks).
- Both supply curves are defined entirely in protocol code, with no discretionary issuance.
- Both issue less over time: each reduction lowers the rate of new supply, which approaches zero.
The primary difference is the reduction rate. Bitcoin's 50% halvings produce sharper supply shocks at longer intervals. ETC's 20% reductions produce gentler transitions at shorter intervals. Both approaches converge to zero new issuance, but ETC's curve is smoother.
Why Predictable Monetary Policy Matters
A fixed supply schedule lets participants plan for the long term knowing how supply will grow. Miners can project future revenues. Holders can assess scarcity. Developers can build applications that depend on the token's economic properties without worrying that those properties will change.
Contrast this with systems where monetary policy is set by governance votes or foundation decisions. In those systems, the supply schedule is a social agreement that can be renegotiated. Holders face uncertainty: will the community vote to increase inflation to fund development? Will a foundation proposal redirect block rewards to a treasury?
On Ethereum Classic, the protocol answers these questions: the supply curve is a consensus rule, enforced by every node on the network.
No Inflation Surprises
Every ETC that will ever exist is accounted for, in the genesis block or the emission schedule. There are no hidden minting functions, no emergency issuance mechanisms, and no governance proposals that can create new tokens outside the defined schedule.
The monetary policy is defined in code and verified by every node. Changing it would take a hard fork that the network's participants accept. Proposals to divert part of the block reward to a treasury were rejected (ECIP-1051) or withdrawn (ECIP-1098), and the proposed Olympia upgrade would leave block rewards untouched.
For detailed supply data, including circulating supply, era progress and emission projections, see the live supply tracker.