Proponent	12gMhxHw8QjEwLQvnqsmMVY1z5gFa54vND74aMUbhhwN6mJR
Date	6/07/2025
Amount	7,575.654 USDT

I'm requesting a one-time retroactive tip to cover the costs for implementing several contributions that enable broader usage beyond transfers (locking, covering deposits) for assets in Asset Hub/Polkadot Hub. These contributions are either already released or in the process of being merged for further release.

Motivation

In the last year, I made three major contributions to the Polkadot SDK, which impact the user experience of Asset Hub/Polkadot Hub.

• #3951 (already released):
  • Provides basic support for freezes (locks) using assets in the Asset Hub. This enables the possibility, among others, of vesting assets (#7404).
• #4530 (already released):
  • Provides basic support for holds (deposits) using assets in the Asset Hub. This is connected to an upcoming project to determine which asset to use for paying deposits (utilising a conversion model) when signing a transaction, or even paying for deposits using stablecoins or ETH across the bridge.
  • Refactors the balances model (the way balances are calculated) for asset accounts to be in line with the way native token balances are calculated.
• #7404 (in final review): Brings pallet-vesting to assets, so people can make vested transfers of (among others) stablecoins or tokens in Asset Hub. Made possible by #3951.

In total, the measured amount for these contributions (measured in time spent, with a fixed hourly rate) exceeds the already compensated amount.

Cost Breakdown

Measured amount: $9,800 (with a rate of $50/h).

• Time spent in the three projects: 196h (~1.84 mo)

Already compensated amount: $2,224.346

• 2 months of Fellowship salary: $1,666.666.
• Tip for #3951: $557.68 (80 DOT at $6.971/DOT — EMA 7).

Remaining amount: $7,575.654