Miner Registration
Miner registration is how a participant enters a Bittensor subnet as a miner. The official Mining: Miner registration documentation describes registration as the step that gives a miner a UID on a subnet so the miner can take part in that subnet’s work and reward flow.
Why Registration Matters
Subnets organize participants around UID slots. The Glossary: UID Slot defines a slot as the position a subnet miner or validator occupies inside a subnet. Without registration, a hotkey is not participating in that subnet’s miner set.
For a reader, miner registration is therefore the entry point into subnet mining vocabulary. It does not describe how well a miner performs, how much it earns, or which subnet is best to join.
Miner Role After Registration
A subnet miner produces work for the subnet’s task and receives evaluation from validators. Registration makes that role possible by placing the miner inside the subnet’s participant set. Official mining documentation treats registration as a prerequisite before a miner can be evaluated and considered for emissions inside that subnet.
This article does not describe mining setup, scoring formulas, or ranking tables. Those details belong in official mining references and live subnet data.
References: Mining: Miner registration, Understanding Subnets
Registration Cost Context
Registering a miner uses the same broad register vocabulary as other subnet participants. The Glossary: Register describes subnet entry as purchasing a UID slot through a dynamic registration burn in TAO. Official mining documentation also notes that this cost changes over time.
The Mining: Miner registration reference should not be read as a fixed price quote. It names the paid entry step that connects a miner hotkey to a subnet UID slot.
Immunity and Deregistration Context
After registration, a miner is not immediately subject to every low-performance removal path. The Glossary: Immunity Period describes a grace window for newly registered participants, and Miner Deregistration describes how a full subnet can later replace a low-performing miner when a new registration arrives.
For readers, registration starts participation; immunity period and deregistration describe later subnet lifecycle rules around that slot.
Choosing a Target Subnet Before Burn
Miner registration always happens on a specific subnet identified by netuid. The mining documentation treats subnet choice as upstream of the registration burn: the participant selects which subnet market to enter, then pays the dynamic registration cost for a miner UID slot on that subnet.
That ordering matters because the burn purchases entry into one subnet, not a transferable option across subnets. A miner who registers on the wrong netuid has entered that subnet’s participant set under that subnet’s rules, not simply reserved TAO for a later subnet switch. Subnet selection and registration cost belong together in live tooling and official references rather than in a static article quote. Changing subnets after a successful registration is a separate participation decision, not an undo of the original entry burn.
References: Mining: Miner registration, Glossary: Netuid
Full Subnet Replacement Dynamics
When a subnet’s miner slots are full, new registration can still occur because the network can replace a low-performing miner to make room. Official miner deregistration documentation describes how a full subnet replaces the lowest-performing miner when a new registration arrives.
Readers should not treat registration as only an empty-slot action. On a full subnet, successful registration implies both payment of the entry burn and displacement of an existing participant under the subnet’s performance rules. That replacement path is separate from the registration transaction itself and belongs to subnet lifecycle documentation rather than to a guarantee about which miner will be removed at submission time. Live subnet state and official deregistration references carry that detail at the time of registration.
References: Miner Deregistration, Mining: Miner registration
Entry Versus Ongoing Miner Performance
Registration grants a UID slot and begins subnet participation, but it does not fix performance rank or emissions outcome. Registration is therefore a one-time entry event, while the validator evaluation that drives rank and emission share continues for as long as the miner holds its slot (Mining: Miner registration, Understanding Subnets).
The distinction keeps expectations aligned with subnet mechanics. A newly registered miner still must produce work for the subnet task and receive validator evaluation like every other participant. Registration opens the door to that evaluation flow; scoring, ranking, and emission allocation remain downstream of entry. Immunity period rules may temporarily change removal timing after entry, but they do not replace the ongoing evaluation described in mining and subnet documentation. Readers evaluating whether to register should separate the one-time entry step from later subnet performance.
References: Mining: Miner registration, Glossary: Subnet Miner, Glossary: Immunity Period
Relationship to Register
Miner registration and register are related but different scopes in Bittensor subnet vocabulary. The Glossary: Register describes subnet entry as purchasing a UID slot through a dynamic registration burn in TAO, while Mining: Miner registration describes that entry process applied to a subnet miner who will take part in mining work and evaluation.
For readers, register is the general subnet-entry term, while miner registration names the miner-specific case of that process.
References: Glossary: Register, Mining: Miner registration
Relationship to UID Slot
Miner registration and a UID slot are related but different parts of the subnet participation lifecycle. The Glossary: Register describes the subnet-entry process, while the Glossary: UID Slot describes the participant position inside a subnet that entry grants.
For readers, miner registration names the miner-specific entry process, while a UID slot names the position a miner occupies after that entry succeeds.
References: Glossary: UID Slot, Mining: Miner registration
Relationship to Netuid
Miner registration and a netuid are related but different parts of Bittensor subnet vocabulary. Register describes the subnet-entry process that grants a UID slot, while a netuid selects which subnet that entry targets. The Glossary: Netuid places netuid at the subnet-selection level, and Mining: Miner registration describes miner entry into a selected subnet.
For readers, netuid names which subnet market the miner is entering, while miner registration names the miner-specific entry process inside that subnet context.
References: Glossary: Netuid, Mining: Miner registration
Relationship to Immunity Period
Miner registration and an immunity period are related but different parts of the subnet participation lifecycle. The Mining: Miner registration documentation describes miner entry into a subnet UID slot, while the Glossary: Immunity Period describes a temporary protection window that begins after a participant registers into a subnet.
For readers, miner registration names the entry event, while immunity period names the grace window that can follow that entry before ordinary low-performance removal rules apply.
References: Mining: Miner registration, Glossary: Immunity Period
Relationship to Subnet Deregistration
Miner registration and subnet deregistration address related but different parts of subnet participation lifecycle vocabulary. Miner registration is the process that gives a miner a UID slot after paying a registration burn to enter a subnet, while subnet deregistration is the network mechanism that removes an entire non-immune subnet when the subnet limit is reached and a new registration attempt enters, selecting the subnet with the lowest EMA of alpha price for removal. The Mining: Miner registration documentation describes miner registration as the entry step that connects a miner hotkey to a subnet UID slot, and the Subnet Deregistration documentation describes the network-level process that can remove an entire subnet.
The lifecycle documentation describes miner deregistration as the participant-level process where one low-performing miner slot is vacated while the subnet itself continues — that is what the “Immunity and Deregistration Context” section above refers to. Subnet deregistration, by contrast, removes the entire subnet: every miner registration within it is lost simultaneously because the subnet context no longer exists. When a subnet is deregistered it is not that individual miners are removed one by one — the whole subnet disappears and every UID assignment within it ends at once.
References: Mining: Miner registration, Subnet Deregistration
Relationship to Yuma Consensus
Miner Registration 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, miner registration 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
Miner registration should not be read as a recommendation to join any particular subnet, as a command tutorial, or as a guarantee of emissions. It is the concept term for how a miner enters a subnet UID slot and begins participating in subnet mining vocabulary.
Development Stage Context
The Introduction to Bittensor describes subnet development as moving from localnet to testnet and then mainnet. For miner registration, that sequence changes how readers should interpret evidence about UID slot acquisition and subnet participation.
In localnet, miner registration can be tested in an isolated environment. UID slots and registration fees in localnet reflect local subnet configuration and do not represent live mainnet registration costs or slot availability.
On testnet, miner registration can be observed in a shared, non-production subnet. Testnet UID assignments and immunity periods are separate from mainnet subnet participation.
On mainnet, miner registration is a live Subtensor extrinsic that assigns a UID slot in a specific subnet. The Mining: Miner registration documentation describes the registration burn, UID slot rules, and immunity period that apply on the production network.
The Bittensor Networks reference separates mainnet, testnet, and localnet. A miner registration example from one environment should not be read as representing UID state or registration costs in another environment.
For readers, this keeps miner registration examples grounded in their network context. Localnet, testnet, and mainnet each have separate subnet UID registries, so registration belongs to the specific network where it was submitted.
UID Scope
Miner registration establishes subnet participation and UID context, but it does not by itself prove ongoing miner quality or reward outcome. Miner documentation explains registration, while incentive-mechanism documentation explains how subnet work can later be evaluated (Mining: Miner registration, Understanding Incentive Mechanisms).
That boundary keeps registration claims separate from later scoring, emissions, and deregistration outcomes.
Registration Binds the Miner Hotkey to a UID Slot
The Glossary: Register describes subnet entry as purchasing a UID slot, and the Glossary: UID Slot states that the UID is assigned to a hotkey when it registers as a miner or validator. Miner registration therefore attaches subnet participation to an operational hotkey rather than to the coldkey balance account alone.
Coldkey authority still governs wallet ownership and stake movement. The registered miner identity that occupies the UID slot is the hotkey named in registration vocabulary (Mining: Miner registration).