preciousblock (0.21.0 RPC)

preciousblock "blockhash"

Treats a block as if it were received before others with the same work.

A later preciousblock call can override the effect of an earlier one.

The effects of preciousblock are not retained across restarts.

Arguments:
1. blockhash    (string, required) the hash of the block to mark as precious

Result:
null    (json null)

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