Payment Receipt - Sparkling

Here is how it works in the Cafeterias :
1. People pay using Zeta
2. Show the payment receipt at the counter
3. Collect food

Lately, we encountered a problem where some 'smart folks' would collect food from the vendors by showing screenshots of their older receipts 🙄

So here's what we did :
1. Experimented with a lot of motion to make the receipts screenshot-proof.
2. Ensured that a live receipt is distinguishable from a screenshot from a distance of 10ft.

Here is one of the variants 😃

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