Learn·Bittensor
How each block's emission is split between subnets
New τ is allocated per subnet every block, paired with α where the pool allows and spent buying α where it does not — with root stakers and miner burn taking their share.
Published 2026-09-17
Allocated per block
Every block the chain mints τ and divides it between the subnets, using each subnet's moving price rather than its spot price — so the allocation follows the smoothed price, not the last trade.
Governance can also switch a subnet's emission off. Such a subnet is paid nothing whatever its price — a different thing from a small share, and Taosis marks the two differently.
Pairing, injection and chain buys
A subnet's τ allocation is paired with α. The pairing leg is injected into the pool, τ on one side and α on the other, which is why the price moves on blocks in which nobody traded.
When a block carries more τ for a subnet than there is α to pair it with, the protocol spends the surplus buying the subnet's α: the chain buys. Most subnets' allocation fits under that pairing cap, so their chain buys are a verified zero, not a missing figure.
Who takes a cut before the subnet does
Validator emission on a subnet is shared with people staking τ on root, by stake weight: γ·R ÷ (γ·R + α in pool + α staked out), γ being the chain's TaoWeight and R the τ staked on root.
Miner emission captured by the owner's own neurons is destroyed instead of paid out, and the chain scales the subnet's whole τ allocation by (1 − burn). The owner does not pocket it.
How Taosis reads the split
The screener's Emission % is (τ injected + τ spent on chain buys) ÷ the same sum over every non-root subnet, both from one block, or the shares would not sum to 100. Chain buys τ/day is the excess τ on the last block × 7,200 blocks per day — a rate restated per day, not a measured day.
Root cut % and Miner burn % are those two cuts, a subnet page shows the pairing leg as Emission / block, and a chain-state guard on the alerts page fires when a subnet's emission is cut or restored.
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Tempo and emission
Emission is the chain paying for work on a fixed schedule — the metronome behind every subnet number.
The moving price
Beside the spot price the chain keeps its own exponential moving average — the figure it uses for emission and for the deregistration queue, and the one Taosis values a subnet at.
Miners and mechanisms
A miner is a registered neuron that validators actually pay; a mechanism is one scoring loop — and a few subnets run more than one.