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Refactor of the MEV shield #2415

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Refactor of the MEV shield #2415

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@l0r1s l0r1s commented Feb 10, 2026

WIP

l0r1s added 21 commits February 8, 2026 23:33
@l0r1s
hoist crypto dependencies and add zeroize
1117742
@l0r1s
introduce ShieldKeystore on node side
1b344f3
@l0r1s
add InherentDatapProvider for MEV shield
3c3526b
@l0r1s
add key rotation task on own block import
d129bf0
@l0r1s
remove old author/proposer tasks
ce36fcf
@l0r1s
extract Executive Context
4e732d3
@l0r1s
remove keys default and swap safely
f70bc1b
@l0r1s
make inherent public key possibly none in case of node failure
e1c1b03
@l0r1s
move shield client logic to own stc-shield crate
991d3df
@l0r1s
added shield primitives crate (stp-shield)
d99c6bf
@l0r1s
refactor MemoryShieldKeystore and implement ShieldKeystore
5369a9f
@l0r1s
fix types following stp-shield crate creation
c1c1c00
@l0r1s
remove unused depndencies from node
58969a7
@l0r1s
added subtensor primitives for I/O aka custom host functions (stp-io)
3ca3d28
@l0r1s
fix imports and features
13d4f74
@l0r1s
stp-shield: added basic shield runtime API
dd85d1c
@l0r1s
fix type errors in node consensus
a4e87ec
@l0r1s
stp-io: aead_decrypt now returns Vec<u8> because unknown result size
d14bc77
@l0r1s
add SubtensorHostFunctions to node
1b33e99
@l0r1s
rework the pallet-shield
5c009c5
@l0r1s
implement stp_shield::ShieldApi Runtime API
7dd713d
@github-actions github-actions bot added the hotfix This PR needs to be merged very quickly and will likely skip testing on devnet and testnet label Feb 10, 2026
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github-actions bot commented Feb 10, 2026

🚨🚨🚨 HOTFIX DETECTED 🚨🚨🚨

It looks like you are trying to merge a hotfix PR into main. If this isn't what you wanted to do, and you just wanted to make a regular PR, please close this PR, base your changes off the devnet-ready branch and open a new PR into devnet ready.

If you are trying to merge a hotfix PR, please complete the following essential steps:

  1. go ahead and get this PR into main merged, so we can get the change in as quickly as possible!
  2. merge main into testnet, bumping spec_version
  3. deploy testnet
  4. merge testnet into devnet, bumping spec_version
  5. deploy devnet
  6. merge devnet into devnet-ready

If you do not complete these steps, your hotfix may be inadvertently removed in the future when branches are promoted to main, so it is essential that you do so.

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hotfix This PR needs to be merged very quickly and will likely skip testing on devnet and testnet

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