When one retrieves blocks from Aleth via web3.eth.getBlock(<block number>), the block "size" field differs from Geth's. For example, take the Genesis block and an arbitrary block with some transactions (65003) - in both cases Aleth's block size is 0 whereas Geth's varies:
Genesis Block
Aleth size = 0, Geth size = 540
Aleth
author: "0x0000000000000000000000000000000000000000",
boundary: "0x0000000040000000000000000000000000000000000000000000000000000000",
difficulty: 17179869184,
extraData: "0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa",
gasLimit: 5000,
gasUsed: 0,
hash: "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3",
logsBloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
miner: "0x0000000000000000000000000000000000000000",
mixHash: "0x0000000000000000000000000000000000000000000000000000000000000000",
nonce: "0x0000000000000042",
number: 0,
parentHash: "0x0000000000000000000000000000000000000000000000000000000000000000",
receiptsRoot: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
seedHash: "0x0000000000000000000000000000000000000000000000000000000000000000",
sha3Uncles: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
size: 0,
stateRoot: "0xd7f8974fb5ac78d9ac099b9ad5018bedc2ce0a72dad1827a1709da30580f0544",
timestamp: 0,
totalDifficulty: 17179869184,
transactions: [],
transactionsRoot: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
uncles: []
Geth
difficulty: 17179869184,
extraData: "0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa",
gasLimit: 5000,
gasUsed: 0,
hash: "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3",
logsBloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
miner: "0x0000000000000000000000000000000000000000",
mixHash: "0x0000000000000000000000000000000000000000000000000000000000000000",
nonce: "0x0000000000000042",
number: 0,
parentHash: "0x0000000000000000000000000000000000000000000000000000000000000000",
receiptsRoot: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
sha3Uncles: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
size: 540,
stateRoot: "0xd7f8974fb5ac78d9ac099b9ad5018bedc2ce0a72dad1827a1709da30580f0544",
timestamp: 0,
totalDifficulty: 17179869184,
transactions: [],
transactionsRoot: "0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421",
uncles: []
Block 65003
Aleth size = 0, Geth size = 846
Aleth
author: "0xf927a40c8b7f6e07c5af7fa2155b4864a4112b13",
boundary: "0x0000000000932bb9e4d20f331c0fd1eda100ae03dd36d33a9b2a6a0e9cd3915e",
difficulty: 1912573463224,
extraData: "",
gasLimit: 3141592,
gasUsed: 118496,
hash: "0x650ec59d844817aff623efdc7a976e2f7005b17035e5ac5e7025747fbc4091ad",
logsBloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
miner: "0xf927a40c8b7f6e07c5af7fa2155b4864a4112b13",
mixHash: "0xdfe2a94512f29e4363b48d0e8661a78f11d41e6fd36d9f2cd91e0c77ba0d8082",
nonce: "0x5f7c213366edf1ef",
number: 64999,
parentHash: "0x23ee2f4a420e1ce4beb6d5902fafa232c0d5718146e53a31b179c86949191b85",
receiptsRoot: "0x61b8587e6a557ecefb87f0091be5b894c197a5b43d3960093bd051589351bc32",
seedHash: "0x510e4e770828ddbf7f7b00ab00a9f6adaf81c0dc9cc85f1f8249c256942d61d9",
sha3Uncles: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
size: 0,
stateRoot: "0x4db358e5d7eca7ead868e622e560b2c4d4588147aee681905ad7acc17e8fd8ec",
timestamp: 1439229736,
totalDifficulty: 73588533123492323,
transactions: ["0xa047af96f2342ff7bc1a061b6d83a9f00af0c7986bb24924391bf0e83de22f85", "0x49be91905241a1bac6e9cfd2568be07aa4c2c13aec5c2ce4f63f27068a5836b1", "0x9acb4b6573444ed7ed12cd8920fdcded1beadacb1872228ce09b34ccfce8e008"],
transactionsRoot: "0xac021c3d56771233aebe36ebb0442373812b0489c3b478309339991d6dd51a71",
uncles: []
Geth
difficulty: 1912573463224,
extraData: "0x",
gasLimit: 3141592,
gasUsed: 118496,
hash: "0x650ec59d844817aff623efdc7a976e2f7005b17035e5ac5e7025747fbc4091ad",
logsBloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
miner: "0xf927a40c8b7f6e07c5af7fa2155b4864a4112b13",
mixHash: "0xdfe2a94512f29e4363b48d0e8661a78f11d41e6fd36d9f2cd91e0c77ba0d8082",
nonce: "0x5f7c213366edf1ef",
number: 64999,
parentHash: "0x23ee2f4a420e1ce4beb6d5902fafa232c0d5718146e53a31b179c86949191b85",
receiptsRoot: "0x61b8587e6a557ecefb87f0091be5b894c197a5b43d3960093bd051589351bc32",
sha3Uncles: "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
size: 846,
stateRoot: "0x4db358e5d7eca7ead868e622e560b2c4d4588147aee681905ad7acc17e8fd8ec",
timestamp: 1439229736,
totalDifficulty: 73588533123492323,
transactions: ["0xa047af96f2342ff7bc1a061b6d83a9f00af0c7986bb24924391bf0e83de22f85", "0x49be91905241a1bac6e9cfd2568be07aa4c2c13aec5c2ce4f63f27068a5836b1", "0x9acb4b6573444ed7ed12cd8920fdcded1beadacb1872228ce09b34ccfce8e008"],
transactionsRoot: "0xac021c3d56771233aebe36ebb0442373812b0489c3b478309339991d6dd51a71",
uncles: []
When one retrieves blocks from Aleth via
web3.eth.getBlock(<block number>), the block "size" field differs from Geth's. For example, take the Genesis block and an arbitrary block with some transactions (65003) - in both cases Aleth's block size is 0 whereas Geth's varies:Genesis Block
Aleth size = 0, Geth size = 540
Aleth
Geth
Block 65003
Aleth size = 0, Geth size = 846
Aleth
Geth