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Official Go implementation of the Ethereum protocol
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go-ethereum/cmd/evm/testdata/14
History
lightclient fa96718512
cmd/evm: rename t8n result to match types.Header (ReceiptRoot->ReceiptsRoot) (#23924) 		3 years ago
..
alloc.json cmd/evm: add difficulty calculation to t8n tool (#23353) 3 years ago
env.json cmd/evm: add tests for evm t8n (#23507) 3 years ago
env.uncles.json cmd/evm: add tests for evm t8n (#23507) 3 years ago
exp.json cmd/evm: rename t8n result to match types.Header (ReceiptRoot->ReceiptsRoot) (#23924) 3 years ago
exp2.json cmd/evm: rename t8n result to match types.Header (ReceiptRoot->ReceiptsRoot) (#23924) 3 years ago
exp_berlin.json cmd/evm: rename t8n result to match types.Header (ReceiptRoot->ReceiptsRoot) (#23924) 3 years ago
readme.md cmd/evm: add tests for evm t8n (#23507) 3 years ago
txs.json cmd/evm: add difficulty calculation to t8n tool (#23353) 3 years ago

readme.md

Difficulty calculation

This test shows how the evm t8n can be used to calculate the (ethash) difficulty, if none is provided by the caller.

Calculating it (with an empty set of txs) using London rules (and no provided unclehash for the parent block):

[user@work evm]$ ./evm t8n --input.alloc=./testdata/14/alloc.json --input.txs=./testdata/14/txs.json --input.env=./testdata/14/env.json --output.result=stdout --state.fork=London
INFO [08-30|20:43:09.352] Trie dumping started                     root=6f0588..7f4bdc
INFO [08-30|20:43:09.352] Trie dumping complete                    accounts=2 elapsed="82.533µs"
INFO [08-30|20:43:09.352] Wrote file                               file=alloc.json
{
  "result": {
    "stateRoot": "0x6f058887ca01549716789c380ede95aecc510e6d1fdc4dbf67d053c7c07f4bdc",
    "txRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
    "receiptRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
    "logsHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
    "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
    "receipts": [],
    "currentDifficulty": "0x2000020000000"
  }
}

Same thing, but this time providing a non-empty (and non-emptyKeccak) unclehash, which leads to a slightly different result:

[user@work evm]$ ./evm t8n --input.alloc=./testdata/14/alloc.json --input.txs=./testdata/14/txs.json --input.env=./testdata/14/env.uncles.json --output.result=stdout --state.fork=London
INFO [08-30|20:44:33.102] Trie dumping started                     root=6f0588..7f4bdc
INFO [08-30|20:44:33.102] Trie dumping complete                    accounts=2 elapsed="72.91µs"
INFO [08-30|20:44:33.102] Wrote file                               file=alloc.json
{
  "result": {
    "stateRoot": "0x6f058887ca01549716789c380ede95aecc510e6d1fdc4dbf67d053c7c07f4bdc",
    "txRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
    "receiptRoot": "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
    "logsHash": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
    "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
    "receipts": [],
    "currentDifficulty": "0x1ff8020000000"
  }
}