pkg.gl

Categorygithub.com/Qitmeer/qngservicesminer

package

1.2.0

Repository: https://github.com/qitmeer/qng.git

Documentation: pkg.go.dev

# README

Solo Mining

Get BlockTemplate
curl -X POST \
  http://47.244.17.119:2234/ \
  -H 'authorization: Basic dGVzdDp0ZXN0' \
  -H 'cache-control: no-cache' \
  -H 'content-type: application/json' \
  -H 'postman-token: a6702d2a-9deb-4d42-6fbd-51dfb3173001' \
  -d '{
  "method":"getBlockTemplate",
  "version":"2.0",
  "params":[["coinbasetxn","coinbasevalue"],8],
  "id":1
}'

{
    "jsonrpc": "2.0",
    "id": 1,
    "result": {
        "stateroot": "0000000000000000000000000000000000000000000000000000000000000000",
        "curtime": 1608036734,
        "height": 1,
        "blues": 1,
        "previousblockhash": "45512392e69843f98182582f4279c1745074633fe7a00fb8eb43ac143d23a9a7",
        "sigoplimit": 80000,
        "sizelimit": 1048576,
        "weightlimit": 4000000,
        "parents": [
            {
                "data": "a7a9233d14ac43ebb80fa0e73f63745074c179422f588281f94398e692235145",
                "hash": "45512392e69843f98182582f4279c1745074633fe7a00fb8eb43ac143d23a9a7"
            }
        ],
        "transactions": [],
        "version": 18,
        "coinbaseaux": {
            "flags": "092f7169746d6565722f"
        },
        "coinbasevalue": 12000000000,
        "longpollid": "45512392e69843f98182582f4279c1745074633fe7a00fb8eb43ac143d23a9a7-1608036734",
        "pow_diff_reference": {
            "nbits": "2003ffff",
            "target": "03ffff0000000000000000000000000000000000000000000000000000000000"
        },
        "maxtime": 1608037094,
        "mintime": 1547735582,
        "mutable": [
            "time",
            "transactions/add",
            "prevblock",
            "coinbase/append"
        ],
        "noncerange": "00000000ffffffff",
        "capabilities": [
            "proposal"
        ],
        "workdata": "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"
    }
}

Use workdata and calc nonce , replace the 8 bytes nonce of header

nonce position is 109-117

header hash is MeerXKeccakV1(workdata[:117])

pow_diff_reference.target is the target hash

submit work

cpu solo golang code

submit

curl -X POST \
  http://47.244.17.119:2234/ \
  -H 'authorization: Basic dGVzdDp0ZXN0' \
  -H 'cache-control: no-cache' \
  -H 'content-type: application/json' \
  -H 'postman-token: 6b997b0f-a45f-9c4c-9d2d-224f71d79adc' \
  -d '{
  "method":"submitBlock",
  "version":"2.0",
  "params":["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"],
  "id":1
}
'
{
    "jsonrpc": "2.0",
    "id": 1,
    "result": "0c034550cf7aa78c76e17fb4d79e94c9f687fb9aa57c6dd00c000000cf7ad290",
}

How to use extra nonce by CoinbaseFlagsDynamic in remote GBT ?

miner call RPC [ GetRemoteGBT(powType, true) ]=> QNG Node =>[return json :headerhex,coinbasetxhex,txmerklepath,txwitnessroot]

...
miner call function mining.CalculateTransactionsRoot(coinbasetxhex,txmerklepath,txwitnessroot,YourExtraNonce) to update blockHeader.TxRoot 
...

miner call RPC [ SubmitBlockHeader(YouerHeaderhex,YourExtraNonce) ] => QNG Node