Notifies peer that a message is invalid
| compact int N (max 12) | N bytes | 1 byte | compact int M (max 111) | M bytes |
|---|---|---|---|---|
| command length | command | error code | reason length | reason string |
command length and command form a vector of bytes that identify the type of the problem message. These bytes (less padded nulls) match the command field in the protocol message envelope.
reason length and reason string form a vector of bytes that is a string providing a human language explanation of the reason the message was rejected. This string is subject to change so client software SHOULD NOT use it programatically.
error code provides a succinct machine-interpretable reason why the message was rejected.
| Name | Value | Response To | Description |
|---|---|---|---|
| REJECT_MALFORMED | 0x01 | any | message cannot be deserialized |
| REJECT_INVALID | 0x10 | BLOCK, TX, FILTERSIZEXTHIN | block or transaction is invalid, or xthin filter size is too small |
| REJECT_OBSOLETE | 0x11 | VERSION | This node no longer supports your client protocol version |
| REJECT_DUPLICATE | 0x12 | unused | |
| REJECT_NONSTANDARD | 0x40 | TX | Transaction is non-standard, or not final as per BIP68 |
| REJECT_DUST | 0x41 | TX | Transaction has an output that is too small |
| REJECT_INSUFFICIENTFEE | 0x42 | TX | Transaction does not pay enough to be relayed |
| REJECT_CHECKPOINT | 0x43 | unused | |
| REJECT_WAITING | 0x44 | TX | This transaction is not final |