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Determine the initial difficulty for a bitcoind in regtest mode - once using the RPC call getinfo and once from the genesis block
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"#\n",
"# The bits hardcoded in the genesis block - see the call to CreateGenesisBlock in chainparams.cpp\n",
"#\n",
"nBits = int('0x207fffff', 16)"
]
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"545259519"
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"nBits"
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"4.6565423739069247e-10"
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"source": [
"difficulty = 256**(29 - (nBits >> 24))*(65535.0 / ((float)(nBits & 0xFFFFFF)))\n",
"difficulty"
]
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"text": [
"4.656542373906925e-10\n"
]
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],
"source": [
"#\n",
"# Now do an RPC call to the local regtest server and see what we get. This assumes that you have a\n",
"# bitcoind listening on port 18332 in regtest mode\n",
"#\n",
"import requests\n",
"headers = {'content-type': 'application/json'}\n",
"url = \"http://localhost:18332\"\n",
"payload = {\"method\": \"getinfo\", \"params\": [], \"jsonrpc\": \"2.0\", \"id\": 1} \n",
"r = requests.post(url, json=payload, headers=headers, auth=(\"user\", \"password\"))\n",
"json = r.json()['result']\n",
"print(json['difficulty'])"
]
}
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