post https://ckb-mirana.unifra.io/v1/
Returns the hash of a block in the canonical chain with the specified block_number.
Parameters
- block_number - Block number.
Returns
The RPC returns the block hash when block_number is less than or equal to the tip block number returned by get_tip_block_number and returns null otherwise.
Because of chain reorganization, the PRC may return null or even different block hashes in different invocations with the same block_number.
Example
Request
curl --location --request POST 'https://ckb-mirana.unifra.io/v1/4fb36720a57340d39aee4cf68511064a' \
--header 'Content-Type: application/json' \
--data-raw '{
"id": 42,
"jsonrpc": "2.0",
"method": "get_block_hash",
"params": [
"0x400"
]
}'
Result
{
"jsonrpc": "2.0",
"result": "0xb2671d3cc16b7738bbc8902ef11322bc2bfe7c54f5ce4a5cdfdf57b1a02fcb11",
"id": 42
}