A web based interface to the Bitcoin API JSON-RPC

Command: submitblock

The submitblock RPC accepts a block, verifies it is a valid addition to the block chain, and broadcasts it to the network. Extra parameters are ignored by Bitcoin Core but may be used by mining pools or other programs.

Parameter #1—the new block in serialized block format as hex
Result—null or error string

The full block to submit in serialized block format as hex.
null
submitblock "hexdata"  ( "dummy" )

Attempts to submit new block to network.
See https://en.bitcoin.it/wiki/BIP_0022 for full specification.

Arguments
1. "hexdata"        (string, required) the hex-encoded block data to submit
2. "dummy"          (optional) dummy value, for compatibility with BIP22. This value is ignored.

Result:

Examples:
> bitcoin-cli submitblock "mydata"
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "submitblock", "params": ["mydata"] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/