There’s a hidden challenge in building a marketplace for real-world data. The buyer wants to inspect the work before paying. The contributor wants to know the work won’t be taken for free. Both sides have a reason to be careful. I find the way @vangrid_io approaches this interesting. Every bounty is funded upfront in USDC and held in escrow on Base or Arc. When a contributor submits a capture, the buyer gets a watermarked preview instead of a downloadable raw video. Once the capture is accepted, Vangrid reconstructs the 3D model and unlocks the deliverables. If the bounty expires without an accepted capture, the buyer can reclaim the escrow. That separation matters. A marketplace needs more than people who can collect data. It needs clear rules for reviewing the work, accepting the result, and handling payment. For physical-world data, trust isn’t just about who collects the footage. It’s also about how the entire exchange works. That’s an important part of the infrastructure @vangrid_io is building.