This is an idea to create a competing token to badgers.cash, but to skip the waiting period where some principal is time-locked by a vault.
Instead, a user that holds some aged unspent output may claim tokens from a contract thread, as long as their utxo is older than that thread. Users with more coins can release more tokens from the vault.
This contract could be deployed as a super multi-threaded airdrop contract rewarding users for coindays on utxos they already have.
Hundreds of Utxos can be seeded with a coinday airdrop token thread, any user with a utxo exceeding the age of a thread can claim tokens proportional to the value of their utxo and the age of the thread.
May be combined with a cauldron swap to bring back coinday paid “free” “zero-fee” transactions.
contract BlockPointAirDrop() {
function release(int age) {
// Force a block based relative timelock
// 0065cd1d OP_OVER OP_GREATERTHANOREQUAL OP_VERIFY
require(500000000 >= age);
// Ensure the first input exceeds the age claimed
// OP_0 OP_INPUTSEQUENCENUMBER OP_OVER OP_GREATERTHANOREQUAL OP_VERIFY
require(tx.inputs[0].sequenceNumber >= age);
// Require the token vault thread to exceed the age claimed
// OP_DUP OP_CHECKSEQUENCEVERIFY OP_DROP
require(this.age >= age);
// Allow anyone to withdraw a token amount proportional to the value of their aged utxo.
// Note: to convert block satoshis to coindays: 144 * 100_000_000
//
// OP_INPUTINDEX OP_OUTPUTTOKENAMOUNT
// OP_INPUTINDEX OP_UTXOTOKENAMOUNT
// OP_ROT OP_0 OP_UTXOVALUE OP_MUL 00e1f505 OP_DIV OP_SUB OP_GREATERTHANOREQUAL
require(
tx.outputs[this.activeInputIndex].tokenAmount >=
tx.inputs[this.activeInputIndex].tokenAmount -
(age * tx.inputs[0].value/100000000)
);
// This thread must be in the last input position
// to prevent users building transactions with multiple airdrop threads.
//
// OP_INPUTINDEX OP_1ADD OP_TXINPUTCOUNT OP_NUMEQUAL
require(this.activeInputIndex+1 == tx.inputs.length);
}
}
