Kusama Vision Bounty Workbench

A single static page for curators of the three Kusama Vision bounties. It fills the child-bounty runbook in from Kusama Asset Hub for whichever bounty and child you select — live state for children that exist, archive state for those that have settled.

→ https://northvanedot.github.io/kusama-vision-bounty-workbench/

Built by a curator of the Proof of Personhood bounty. Not an official Kusama Vision publication.

What it does

• Live pot balance, recorded value and headroom for bounties 0, 1 and 2
• Every child bounty with its value and status, decoded from pallet_multi_asset_bounties::ChildBounty in the live runtime metadata
• Clicking a child jumps the runbook to the step that child is actually at
• Runbook placeholders fill in from chain for the selected bounty and child
• Children that have settled are listed and rebuilt from archive state — value, metadata, beneficiary, and the block they were removed at
• The metadata preimage behind every child is read back, so a payment shows what it was for
• Step 1 composes new metadata, hashes it locally and checks whether it is already registered
• For a payout still unsettled, checks whether the beneficiary's balance actually moved in the block it was attempted
• For every call it builds, names who can sign it for the selected child, read from that child's record — including when the child's own curator can sign directly, without the multisig — and offers only the calls the pallet will accept in the child's current state

What it does not do

It never signs, and holds no keys. There is no backend and no wallet connection. Every figure is a chain query you can repeat in Polkadot.js.

Call data is built in-page for the simple calls — increaseValue, checkStatus, acceptCurator, unassignCurator, retryPayment, closeBounty. The SCALE encoding was verified byte-for-byte against @polkadot/api output for the same arguments.

fundBounty, fundChildBounty, proposeCurator and awardBounty are deliberately not built here. They take MultiAddress, H256 and VersionedLocatableAccount arguments — exactly the argument class the runbook documents an encoding bug for. Build those in Nova Spektr (the desktop wallet — not Nova Wallet) under Custom operation → Build an operation, or in Polkadot.js Apps, where the UI encodes them from runtime metadata. That dialog also has a Paste tab that takes raw call data, so the hex this page emits goes straight in.

Where a call has to go through the parent curator, the page also gives the proxy.proxy call the multisig submits. Its real argument is a MultiAddress, but only ever the plain ::Id form — a 0x00 tag and the 32-byte curator key the page has just read from chain — with force_proxy_type set to Governance. Checked byte for byte against @polkadot/api on runtime 2003002; the page warns if the chain has moved to another runtime.

Steps 2 and 4 list every argument those calls need, ready to copy — the page just won't encode them.

Before you sign anything

Decode the call data in Polkadot.js Apps → Developer → Extrinsics → Decode and confirm it matches the call and arguments the page displays. The page proposes; Polkadot.js Apps confirms. Do not sign on this tool's word alone.

Rebuilding

The page embeds the runbook so it works offline. To regenerate after editing child-bounty-runbook.md:

python3 build.py

Verifying the encoder yourself

import { ApiPromise, WsProvider } from '@polkadot/api';
const api = await ApiPromise.create({ provider: new WsProvider('wss://kusama-asset-hub-rpc.polkadot.io') });
console.log(api.tx.multiAssetBounties.increaseValue(0, 39990000000000n).method.toHex());
// 0x6209000b009cbee55e24 — compare against what the page emits for the same arguments
console.log(api.tx.proxy.proxy('HfMgvo7Lfuymg9sxii2H747rXdts5be6UfLPp6kXS4cNE9u', 'Governance',
  api.tx.multiAssetBounties.closeBounty(0, 0)).method.toHex());
// 0x2a0000e104b438e7893a9f9cbc59e7d057d61a85ed1b88e3a0ebc59733cb89637a5e7c01076206000100000000

Upstream references

• pallet-multi-asset-bounties 0.7.0 rust docs — this is the version Kusama Asset Hub actually runs. The chain reports spec_version 2003002, which is polkadot-fellows/runtimes v2.3.2, and that release's Cargo.lock pins pallet-multi-asset-bounties 0.7.0 from crates.io. [T]

  Read the version, not just the crate. polkadot-sdk master is already at 1.0.0, and docs for it are on docs.rs as pezpallet-multi-asset-bounties — a third party's republish of the newer source. Those docs describe code Kusama is not running yet.

• Multi-Asset Bounties Now Live on Westend: Testing and Roadmap — Polkadot Forum, background and roadmap.

This runbook is the failure-mode companion to those: what we hit running the flow on Kusama Asset Hub, not a substitute for the pallet docs.

Licence

MIT.