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After successfully deploying Dstack, enabling TDX + GPU stack support, your GPU worker is technically online — but not yet registered on-chain.
To actually start earning GPU mining rewards, each GPU must:
  1. Pass environment verification
  2. Receive an official GPU NFT
  3. Create a stakepool
  4. Lock the GPU NFT into the stakepool
  5. Deposit required vPHA collateral
  6. Activate mining
This guide walks you through each step.

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1. Manual Environment Verification (Required Before On-Chain Registration)

Because the automated GPU verification pipeline is still under development, GPU miners must currently undergo manual verification. After your machine:
  • appears online in Phala Cloud
  • shows healthy TDX + GPU stack operation
  • completes all configuration steps
Please contact the Phala Delegation Team: [email protected] Include the following:
  • Your GPU hardware model (H100 / H200 / B200)
  • Your wallet address (for receiving the NFT)
  • Any logs or additional information if requested
The Phala team will manually verify:
  • TDX environment readiness
  • GPU compatibility and stability
  • Proper Dstack configuration
  • Worker reliability
Once approved, you may proceed to on-chain registration.

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2. Receive Your GPU NFT

After the manual verification is completed, the Phala team will help mint a GPU Worker NFT for your device. This NFT:
  • Represents your GPU on-chain
  • Stores metadata such as GPU model & reward weight
  • Is mandatory for earning mining rewards
  • Must be locked into your stakepool
Without the NFT, your GPU cannot receive vPHA mining rewards, even if it is online.

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3. Create Your StakePool

A stakepool is a container that:
  • Holds your GPU NFTs
  • Stores your required vPHA collateral
  • Tracks your mining activity and earnings
  • Acts as your mining identity on-chain
Each miner typically only needs one stakepool, unless managing GPUs under different ownership structures. Using your wallet interface (e.g., MetaMask):
  1. Click Create StakePool
  2. Sign the transaction
  3. Wait for on-chain confirmation
Your stakepool is now ready.

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4. Lock Your GPU NFT Into the StakePool

Once your stakepool is created:
  1. Open the stakepool interface
  2. Choose “Lock NFT”
  3. Select the GPU Worker NFT you just received
  4. Confirm the transaction
Your GPU is now officially registered on-chain.

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5. Deposit Required vPHA Collateral

Each GPU requires a certain amount of vPHA collateral to ensure network security.
GPU ModelRequired vPHA
H1001250 vPHA
H100x810000 vPHA
H2001875 vPHA
H200x815000 vPHA
B2002250 vPHA
B200x818000 vPHA
To deposit collateral:
  1. Convert PHA → vPHA through the staking contract if needed
  2. Bridge the vPHA to L2 network via “bridge.phala.network”
  3. Open your stakepool
  4. Choose Deposit Collateral
  5. Deposit the required amount (based on GPU type)
This collateral:
  • Does not earn rewards
  • Is used purely as a security guarantee
  • Is fully withdrawable when you retire your GPU and exit properly

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6. Start Mining and Earn vPHA Rewards

After completing:
  • NFT lock
  • vPHA collateral deposit
  • Worker online status in Phala Cloud
Your GPU will automatically start the mining process.

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Reward Distribution Details

  • Rewards are paid in vPHA
  • Rewards are calculated hourly and Payout happens every hour at the end of each hour

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Reward Weights by GPU Type

GPU ModelWeight
H1001.0
H2001.5
B2001.8
You can monitor these metrics on app.phala.network
  • Worker status
  • On-chain status (stakepool interface)
  • Earnings flow (vPHA rewards updated hourly)