I need to know how to read a block header in particular its nonce.

How can I read a block nonce? what command line is used?

1 Answer 1


The getblock RPC command includes the nonce in its JSON output:

    "result": {
        "hash": "00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09",
        "confirmations": 543325,
        "strippedsize": 216,
        "size": 216,
        "weight": 864,
        "height": 1000,
        "version": 1,
        "versionHex": "00000001",
        "merkleroot": "fe28050b93faea61fa88c4c630f0e1f0a1c24d0082dd0e10d369e13212128f33",
        "tx": [
        "time": 1232346882,
        "mediantime": 1232344831,
        "nonce": 2595206198,
        "bits": "1d00ffff",
        "difficulty": 1,
        "chainwork": "000000000000000000000000000000000000000000000000000003e903e903e9",
        "previousblockhash": "0000000008e647742775a230787d66fdf92c46a48c896bfbc85cdc8acc67e87d",
        "nextblockhash": "00000000a2887344f8db859e372e7e4bc26b23b9de340f725afbf2edb265b4c6"
    "error": null,
    "id": null

You could even pull it out of the raw hex, but bitcoind will do the heavy lifting for you here.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.