Register Offline

To mark an account offline send a key registration transaction to the network authorized by the account to be marked offline. The signal to mark the sending account offline is the issuance of a "type": "keyreg" transaction that does not contain any participation key-related fields (i.e. they are all set to null values)

Important

Just like with online keyreg transactions. The moment a key registration transaction is confirmed by the network it takes 320 rounds for the change to take effect. So, if a key registration is confirmed in round 5000, the account will stop participating at round 5320.

Create an offline key registration transaction

Create an offline key registration transaction for the address: EW64GC6F24M7NDSC5R3ES4YUVE3ZXXNMARJHDCCCLIHZU6TBEOC7XRSBG4 by inserting the following code snippet into the construction portion of the example shown in Authorizing Transactions Offline. The file produced and displayed with goal clerk inspect should look almost exactly the same as the output shown in the constructing a register offline transaction example.

...
def write_unsigned():
    # setup none connection
    algod_client = connect_to_network()

    # get suggested parameters
    params = algod_client.suggested_params()
    # create transaction
    data = {
        "sender": "EW64GC6F24M7NDSC5R3ES4YUVE3ZXXNMARJHDCCCLIHZU6TBEOC7XRSBG4",
        "votekey": None,
        "selkey": None,
        "votefst": None,
        "votelst": None,
        "votekd": None,
        "fee": 1000,
        "flat_fee": True,
        "first": 7000000,
        "last": 7001000,
        "gen": params.get('genesisID'),
        "gh": params.get('genesishashb64')
    }
    txn = transaction.KeyregTxn(**data)
...
...
        final String SRC_ADDR = "EW64GC6F24M7NDSC5R3ES4YUVE3ZXXNMARJHDCCCLIHZU6TBEOC7XRSBG4";

        try {
            // Get suggested parameters from the node
            TransactionParams params = algodApiInstance.transactionParams();

            // create transaction
            String genId = params.getGenesisID();
            Digest genesisHash = new Digest(params.getGenesishashb64());
            BigInteger firstRound = BigInteger.valueOf(7000000);
            BigInteger lastRound = BigInteger.valueOf(7001000);
            BigInteger fee = BigInteger.valueOf(1000);
            Transaction tx = new Transaction(new Address(SRC_ADDR), fee, firstRound, lastRound,
                    null, genId, genesisHash, null, null,  null, null, null);
...
$ goal account changeonlinestatus --address=EW64GC6F24M7NDSC5R3ES4YUVE3ZXXNMARJHDCCCLIHZU6TBEOC7XRSBG4 --fee=1000 --firstvalid=7000000 --lastvalid=7001000 --online=false --txfile=offline.txn

See also