hush3/migratecoin.md

MigrateCoin protocol

ExportCoins tx:

vin:

  [ any ]

vout:

  - amount: {burnAmount}

    script: OP_RETURN "send to ledger {id} {voutsHash}"

• ExportCoin is a standard tx which burns coins in an OP_RETURN

ImportCoins tx:

vin:

  - txid:   0000000000000000000000000000000000000000000000000000000000000000

    idx:    0

    script: CC_EVAL(EVAL_IMPORTCOINS, {momoProof},{exportCoin}) OP_CHECKCRYPTOCONDITION_UNILATERAL

vout:

  - [ vouts matching voutsHash in exportCoin ]

• ImportCoin transaction has no signature

• ImportCoin is non malleable

• ImportCoin satisfies tx.IsCoinBase()

• ImportCoin uses a new opcode which allows a one sided check (no scriptPubKey)

• ImportCoin must contain CC opcode EVAL_IMPORTCOINS

• ImportCoin fees are equal to the difference between burnAmount in exportCoins and the sum of outputs.