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To mine on BASE you need a Bittensor wallet (a coldkey for custody and a hotkey for signing) and a hotkey registered on the subnet. The subnet runs on netuid 100 (src/platform_network/config/settings.py:12), and every signed submission is bound to that netuid (src/platform_network/security/miner_auth.py:96-111).

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Keys you need

KeyRoleSource
coldkeyCustody and ownershipsrc/platform_network/config/settings.py:14
hotkeyOperational signing keysrc/platform_network/config/settings.py:15
The subnet’s default wallet name and default hotkey name are both default (src/platform_network/config/settings.py:14-15, config/master.example.yaml:5-6). Keep your hotkey consistent across submissions so your work accrues to one identity (docs/miner/README.md:160).

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Register on netuid 100

1

Create the wallet

Create a coldkey and a hotkey with the Bittensor wallet tooling installed by the bittensor extra (pyproject.toml:28). The wallet name and hotkey name you choose map to the wallet_name and wallet_hotkey settings (src/platform_network/config/settings.py:14-15).
2

Register the hotkey on netuid 100

Register your hotkey on the subnet. The netuid is fixed at 100 (src/platform_network/config/settings.py:12, config/master.example.yaml:3, config/validator.example.yaml:3). Registration places your hotkey in the metagraph and assigns it a UID.
3

Confirm your hotkey is registered

Uploads require a registered hotkey by default (src/platform_network/config/settings.py:36). The subnet maps your hotkey to a UID from the metagraph at verification time (src/platform_network/security/miner_auth.py:200-219). If the hotkey is not in the metagraph, the upload is rejected with an unknown hotkey error (src/platform_network/security/miner_auth.py:213-215).

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Why registration matters for uploads

When you submit, the subnet verifies your signature and then resolves your hotkey to a UID (src/platform_network/security/miner_auth.py:183, src/platform_network/security/miner_auth.py:200-219):
  • The hotkey must exist in the metagraph, or the upload fails with unknown hotkey (src/platform_network/security/miner_auth.py:213-215).
  • UID 0 is blocked (src/platform_network/security/miner_auth.py:143); a submission resolving to UID 0 fails with blocked uid (src/platform_network/security/miner_auth.py:217-218).
  • If the metagraph is unavailable and a registered hotkey is required, the upload fails with metagraph unavailable (src/platform_network/security/miner_auth.py:204-205).
Registration is enforced because upload_require_registered_hotkey defaults to true (src/platform_network/config/settings.py:36). The verified UID is forwarded to the challenge as X-Platform-Verified-Uid (src/platform_network/master/app_proxy.py:461-462), so your on-chain identity follows the submission downstream.

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Next steps

Choosing a challenge

Pick agent-challenge or PRISM.

Authentication & signing

Sign uploads with your hotkey.