01 / AORIGIN: PAIR #0001
RH MAINNET
AN ONCHAIN AGREEMENT BETWEEN TWO WALLETS
Mint only if
they both pay.
Wallet A opens the pair. Wallet B completes it. The second payment atomically sends one linked NFT to each wallet.
01 / BORIGIN: PAIR #0001
SEPARATE TOKENS.
PERMANENTLY RELATED.
Most mints prove that one wallet clicked.
COSIGN proves that
two wallets agreed.
01 / THE MECHANISM
Two payments.
One shared origin.
Create
Wallet A chooses Wallet B and deposits one side fee into the contract.
Share
Wallet A sends a wallet-gated link. Any other connected wallet is rejected.
Complete
Wallet B pays the second side fee. That transaction mints both NFTs.
Verify
Both tokens retain the same immutable pair ID, even after they are traded.
02 / PROTOCOL SPEC
Simple outside.
Verifiable inside.
The user only chooses a wallet, shares a link, and pays. The protocol handles wallet gating, deposit safety, one-wallet limits, token pairing, and refunds.
DEPLOYED INTERFACESolidity
struct Invite {
address walletA;
address walletB;
uint256 feePerWallet;
uint256 deadline;
InviteState state;
}
function createInvite(
address walletB,
uint256 deadline,
bytes32 salt
) external payable returns (bytes32);
function acceptInvite(bytes32 inviteId)
external payable returns (uint256, uint256);
function pairedToken(uint256 tokenId)
external view returns (uint256);01 A ≠ B02 EXACT PAYMENT03 WALLET-GATED04 ONE WALLET / NFT
V2 is deployed on Robinhood Chain as a non-upgradeable contract with immutable onchain metadata.
03 / THE BATCH
10 pairs enter.
3 mint free.
Every completed pair joins a ten-pair batch. Three pairs receive both side fees back, one refund to each original payer. Gas stays paid to the network.
30% OF COMPLETED PAIRS01020304050607080910
04 / WHAT STAYS TRUE
The NFT can move.
The origin cannot.
- TRADABLEEach token is a standard ERC-721 built for secondary markets.
- LINKEDBoth tokens reference the same immutable pair ID.
- CONSENSUALNo pair exists until Wallet B accepts and pays.