Emission Split
Emission split is how a subnet’s alpha emission is divided among the participants who share it. Official documentation gives explicit proportions: of the alpha a subnet distributes at the end of each tempo, for example on netuid 1, 41% goes to miners, 41% goes to validators and their stakers, and 18% goes to the subnet owner.
References: Emission
The Three Shares
Each share lines up with a role. Miners take 41% for producing the subnet’s work. Validators and their stakers take another 41% for evaluating that work. The subnet owner takes 18% for creating and running the subnet. Together these account for the whole of a subnet’s alpha emission, splitting it across the groups that make the subnet function.
References: Emission
Distributed Each Tempo
The split is not applied block by block in isolation; the documentation describes the alpha being distributed at the end of each tempo, the subnet’s recurring reward interval. On a subnet such as netuid 1, emission accumulates over the tempo and is then divided according to these proportions, so the split is best read as the outcome of a tempo rather than of a single block.
References: Emission, Glossary: Tempo
Validators Share With Stakers
The 41% for validators is not kept whole by the validators. The documentation describes validators first receiving their share according to Yuma Consensus scoring, after which the remaining alpha is distributed to stakers in proportion to their holdings. So this portion is really a validators-and-stakers share, which is why delegating stake to a validator earns a part of it.
References: Emission, Yuma Consensus
Development Stage Context
The Introduction to Bittensor describes subnet development as moving from localnet to testnet and then mainnet. For emission split, that sequence changes how readers should interpret miner, validator, and subnet-owner share examples.
In localnet, tempo-bound emission splits can be tested in an isolated environment. Localnet distribution shares do not represent production subnet rewards.
On testnet, emission split flows can be exercised in a shared non-production network. Testnet tempo outcomes are separate from mainnet subnet state.
On mainnet, emission split describes live production alpha distribution at tempo boundaries on subnets such as netuid 1. Observed shares depend on the selected subnet’s consensus and emission context (Emission).
The Bittensor Networks reference separates mainnet, testnet, and localnet. An emission-split example from one environment should not be read as representing production reward shares in another environment.
Relationship to Yuma Consensus
Emission Split and Yuma Consensus describe related parts of Bittensor’s incentive system. Yuma Consensus is the on-chain process that aggregates validator weight signals within a subnet into miner incentives and validator dividends, applying consensus clipping, bonding, and emission calculation (Yuma Consensus).
For readers, emission Split names a specific part of that incentive picture, while Yuma Consensus names the consensus process that turns validator weights into the resulting incentives and dividends.
Reader Boundary
This page defines the split at a high level. The 41, 41, and 18 percent figures are the documented proportions, but how much total alpha a subnet emits varies over time, and the exact mechanics within each share are described in the fuller emission and consensus references. Live amounts should be checked from current Bittensor sources rather than inferred from the proportions alone.
References: Emission
Injection Accumulates Alpha Before the Tempo Split
Official Emission documentation separates subnet rewards into injection and distribution. Injection adds alpha liquidity to each subnet’s pools every block, while distribution waits until the end of each tempo.
The documented 41%, 41%, and 18% shares on a subnet such as netuid 1 therefore describe how alpha is divided when distribution runs at the tempo boundary, not how much alpha enters the subnet on every individual block.
References: Emission, Glossary: Emission
Yuma Consensus Divides the Miner Share by Rank
Official Yuma Consensus: Miner emissions documentation explains that the miner-side allocation on a subnet such as netuid 1 is a proportional split based on each miner’s share of total aggregate rank. The 41% miner portion is shared among miners according to consensus results, not assigned as one equal amount to every miner.
Emission split names how alpha is partitioned among roles at tempo end; Yuma Consensus names how the miner partition is subdivided among miners after validator weights are aggregated (Understanding Incentive Mechanisms).
References: Yuma Consensus: Miner emissions, Glossary: Rank
Validator Take Applies After the Validator Share
Official Emission: Distribution documentation places validator take inside the stage that follows consensus on a subnet such as netuid 1. The 41% validators-and-stakers share may also be split when validators retain a documented take percentage from the delegated portion before the remainder flows to stakers.
Emission split reading should keep those layers in order. The three headline percentages describe the subnet alpha partition at tempo end, while validator take vocabulary describes a later split inside the validator-and-staker portion (Staking and delegation overview).
References: Emission: Distribution, Glossary: Validator Take %