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3675: Bring back extraData (#3982)

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Mikhail Kalinin 2021-09-17 18:25:50 +06:00 committed by GitHub
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@ -74,7 +74,6 @@ Beginning with `TRANSITION_BLOCK`, a number of previously dynamic block fields a
|-|-|-| |-|-|-|
| **`ommersHash`** | `0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347` | `= Keccak256(RLP([]))` | | **`ommersHash`** | `0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347` | `= Keccak256(RLP([]))` |
| **`difficulty`** | `0` | | | **`difficulty`** | `0` | |
| **`extraData`** | `b''` | `RLP(b'') = 0x80` |
| **`mixHash`** | `0x0000000000000000000000000000000000000000000000000000000000000000` | | | **`mixHash`** | `0x0000000000000000000000000000000000000000000000000000000000000000` | |
| **`nonce`** | `0x0000000000000000` | | | **`nonce`** | `0x0000000000000000` | |
| **`ommers`** | `[]` | `RLP([]) = 0xc0` | | **`ommers`** | `[]` | `RLP([]) = 0xc0` |
@ -167,10 +166,6 @@ This change introduces an additional validity rule that enforces the replacement
After deprecating the proof-of-work the notion of difficulty no longer exists and replacing the block header **`difficulty`** field with `0` constant is semantically sound. After deprecating the proof-of-work the notion of difficulty no longer exists and replacing the block header **`difficulty`** field with `0` constant is semantically sound.
### Deprecating `extraData`
The **`extraData`** field is deprecated in favour of the corresponding **`graffiti`** field of the beacon block.
### Changing block validity rules ### Changing block validity rules
The rule set enforcing the PoW seal validity is replaced with the corresponding PoS rules along with the consensus upgrade as the rationale behind this change. The rule set enforcing the PoW seal validity is replaced with the corresponding PoS rules along with the consensus upgrade as the rationale behind this change.