Summary

Execute the previously whitelisted System.authorizeUpgrade call via the Whitelisted Caller track to authorize runtime upgrade nexus-v7000 on Nexus. This proposal must follow successful enactment of the prior Fellowship whitelist referendum.

Dispatch call

• Outer call: Whitelist.dispatchWhitelistedCall(callHash, callEncodedLen, callWeightWitness) (pallet index 83, call index 2)
• Parameters:
  • callHash: 0x5fe7ee1d534554fc63e56ad5490c9ae8696265d932896651c387a8ad7a798b38
  • callEncodedLen: 34
  • callWeightWitness: weight of System.authorizeUpgrade — fill from polkadot.js when constructing
• Preimage to register (via Preimage.notePreimage): 0x000946a0b6173cb02e48236a0d20ab03ecceec6e25414b4f168a4e5da5d49eb2f84f
• Preimage decoded: System.authorizeUpgrade(codeHash = 0x46a0b6173cb02e48236a0d20ab03ecceec6e25414b4f168a4e5da5d49eb2f84f)

Track

• Origin: WhitelistedCaller
• Track: Whitelisted Caller (track id 1 on Nexus governance)

Runtime info

• Release: nexus-v7000 (published 2026-05-20)
• Spec: nexus-7000 (nexus-0.tx1.au1), Metadata V14
• WASM: nexus_runtime-v7000.compact.compressed.wasm — 2,008,082 bytes (1.92 MiB)
• WASM Keccak-256: 0x46a0b6173cb02e48236a0d20ab03ecceec6e25414b4f168a4e5da5d49eb2f84f
• Toolchain: rustc 1.91.1 (ed61e7d7e 2025-11-07)

Verification steps for voters

1. Confirm a successful Fellowship whitelist referendum exists for call hash 0x5fe7ee1d534554fc63e56ad5490c9ae8696265d932896651c387a8ad7a798b38.
2. Confirm the preimage 0x000946a0…2f84f is registered on-chain and decodes to System.authorizeUpgrade(0x46a0b617…2f84f).
3. Verify the keccak-256 of nexus_runtime-v7000.compact.compressed.wasm equals 0x46a0b617…2f84f.

Enactment plan

1. Register the preimage via Preimage.notePreimage(0x000946a0…2f84f) if not already on-chain.
2. This referendum passes on the Whitelisted Caller track, dispatching System.authorizeUpgrade(0x46a0b617…2f84f) and storing the authorization on-chain.
3. Any account submits System.applyAuthorizedUpgrade(code) with the WASM blob to complete the upgrade.