getblockhash - Bitcoin

getblockhash. Retrieves the unique hash identifier of a specific Bitcoin block based on its height within the blockchain.

getblockhash - bitcoin [Value: 30CU]
Retrieves the hash of a block by height.
Use cases

Use cases

  • Retrieve the hash of a specific Bitcoin block
  • Verify block identity by height
  • Audit blockchain structure with block hashes
Constraints

Constraints

  • Requires valid block height
  • Only retrieves hashes for existing blocks
  • Depends on node sync
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Language

Request
Examples
curl --request POST \
     --url ' https://bitcoin.drpc.org' \
     --header 'Content-Type: application/json' \
     --data '{"method": "getblockhash", "params": [1000], "id": 1, "jsonrpc": "2.0"}'
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Response
200
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": "0000000000000b4d3eecf8f6c8e4f678dce7061b15e0e4f0a1e9b123456789ab0"
}
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Request params

idinteger
jsonrpcstring
methodstring
Parametersinteger
integer
heightnumeric
Required. The height index of the block in the blockchain.

Response

200

Response params

object
idinteger
jsonrpcstring
resultstring
The hash of the block.
errorstring
The error message, if any.
Blocks infogetblockcount