Summary

Execute the previously whitelisted System.authorizeUpgrade call via the Whitelisted Caller track to authorize runtime upgrade nexus-v7100 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: 0xbe651618fb545affac3b6852100ed3864dd51b57976fd5f37ea4fd84dafe04fb
  • callEncodedLen: 34
  • callWeightWitness: weight of System.authorizeUpgrade — fill from polkadot.js when constructing
• Preimage to register (via Preimage.notePreimage): 0x000952a5b89bb0806d105888e5c50cae02eb3deae6f853446320dfe5b49777608ff6
• Preimage decoded: System.authorizeUpgrade(codeHash = 0x52a5b89bb0806d105888e5c50cae02eb3deae6f853446320dfe5b49777608ff6)

Track

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

Runtime info

• Release: nexus-v7100 (published 2026-05-22)
• Spec: nexus-7100 (nexus-0.tx1.au1), Metadata V14
• WASM: nexus_runtime-v7100.compact.compressed.wasm — 2,009,656 bytes (1.92 MiB)
• WASM Keccak-256: 0x52a5b89bb0806d105888e5c50cae02eb3deae6f853446320dfe5b49777608ff6
• Toolchain: rustc 1.91.1 (ed61e7d7e 2025-11-07)

Verification steps for voters

1. Confirm a successful Fellowship whitelist referendum exists for call hash 0xbe651618fb545affac3b6852100ed3864dd51b57976fd5f37ea4fd84dafe04fb.
2. Confirm the preimage 0x000952a5…8ff6 is registered on-chain and decodes to System.authorizeUpgrade(0x52a5b89b…8ff6).
3. Verify the keccak-256 of nexus_runtime-v7100.compact.compressed.wasm equals 0x52a5b89b…8ff6.

Enactment plan

1. Register the preimage via Preimage.notePreimage(0x000952a5…8ff6) if not already on-chain.
2. This referendum passes on the Whitelisted Caller track, dispatching System.authorizeUpgrade(0x52a5b89b…8ff6) and storing the authorization on-chain.
3. Any account submits System.applyAuthorizedUpgrade(code) with the WASM blob to complete the upgrade.