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InstantSend subsection of P2P reference detail

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- Added ix, txlvote message details and associated references
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thephez 2017-09-07 12:40:49 -04:00
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_includes/devdoc/ref_p2p_networking.md
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@ -1411,6 +1411,8 @@ bc8f5e5400000000 ............................ Epoch time: 1415483324
{% autocrossref %}
The following network messages all help control the InstantSend feature of Dash.
InstantSend uses the masternode network to lock transaction inputs and enable
secure, instantaneous transactions.
{% endautocrossref %}
@ -1419,6 +1421,10 @@ The following network messages all help control the InstantSend feature of Dash.
{% autocrossref %}
The `ix` message (transaction lock request) has the same structure as the `tx` message.
The masternode network responds with `txlvote` messages if the transaction inputs
can be locked.
{% endautocrossref %}
@ -1427,6 +1433,41 @@ The following network messages all help control the InstantSend feature of Dash.
{% autocrossref %}
The `txlvote` message ([transaction lock vote][msg_txlock_vote]{:#term-msg_txlock_vote}{:.term})
is sent by masternodes to indicate approval of a transaction lock request
`ix` message.
| Bytes | Name | Data type | Required | Description |
| ---------- | ----------- | --------- | -------- | -------- |
| 32 | txHash | uint256 | Required | TXID of the transaction to lock
| 36 | outPoint | outpoint | Required | The unspent outpoint to lock in this transaction
| 36 | outpointMasternode | outpoint | Required | The outpoint of the masternode which is signing the vote
| 66* | vchMasternodeSignature | char[] | Required | 66 bytes in most cases. Length (1 byte) + Signature (65 bytes)
The following annotated hexdump shows a `txlvote` message. (The
message header has been omitted.)
{% highlight text %}
3c121fb4a12b2f715e2f70a9fa282115
be197dde14073959fb2a2b8e95a7418f ..... TXID
Outpoint to lock
| bb607995757c6a6efd6429215dcb3688
| b252d34d835c81fed310fd905f487020 ... Outpoint TXID
| 01000000 ........................... Outpoint index number (1)
Masternode Outpoint
| de9029c7e9b7eb7cd11f27ba670b2349
| 0c3f0717b86ed949c316874589405cd2 ... Outpoint TXID
| 00000000 ........................... Outpoint index number (0)
1ccc39ffb9c62111a8c82823d3ce61d2
380db4e8f76ec238d568908f37558a90
4e79566a53663de12ec2be1183c87d61
250e8ebd57be171be1d4b5e89b69c263
88 ................................... Masternode Signature
{% endhighlight %}
{% endautocrossref %}