Watermark Genesis Drop, protected by Watermark
A free NFT for real cardholders.
We're launching Watermark with 100 free NFTs. No fee to pay: we cover it. To stop bots from taking them, you verify once with your bank card.
- Free
- No fee
- Only 100 will ever exist
- One per bank card
Only 100 will ever exist.
Claim it in three steps.
1. Verify with your card
Tap your RuPay bank card on the Watermark phone app, once. Your wallet gets a stamp. Your card number is never stored.
2. Send one free test payment
Send one test USDT payment. You only sign, and we pay the fee. It shows your stamp unlocks payments with no fees.
3. Claim your NFT
We mint it to your wallet. You sign nothing and pay nothing.
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Good to know
Why one per bank card?
Your card can verify one wallet for this drop, and each wallet can claim once. So one card gets one NFT. A bot with a thousand wallets and no card gets none. We check a bank card, not who you are.
Why a test payment?
It shows the other half of Watermark: a shop can take USDT and you pay no fee. You just sign. We pay the fee. It is test USDT on a test network.
Is my card number stored?
No. We never store your card number, and it never goes on-chain.
Can I give the NFT away?
Yes. Send it to any wallet, like any NFT. The limit is on claiming, not on holding.
Is this real money?
No. The drop runs on Whitechain Sepolia, a test network. No real money moves.
Details: how the NFT contract checks the stamp
The NFT contract checks the wallet's stamp on-chain before it mints:
// WatermarkGenesisPass.mint(to), on-chain
(bool ok, uint64 expiresAt) = registry.isStamped(to, appId);
if (!ok) revert NotStamped(to);Step 1 is checked on-chain by the NFT contract. Step 2 is checked by our relayer from the Sponsor's PaymentRelayed events, not on-chain.
5 Mumbai plates · 20 stamps each
Each NFT is a stamp its contract draws on-chain. Your number picks the landmark.
#001–#020Gateway of India 
#021–#040Rajabai Clock Tower 
#041–#060Bandra-Worli Sea Link 
#061–#080Chhatrapati Shivaji Terminus 
#081–#100Marine Drive
Why the card?
Wallets are free to make, so bots make thousands. Bank cards aren't.
This drop is protected by Watermark, the same check any company can add.