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Update EIP-4844: clarify to must be non-nil #7100

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Jun 1, 2023
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Update EIP-4844: clarify to must be non-nil #7100

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46e7b38
4844: clarify to must be non-nil
lightclient May 31, 2023
2ce409b
4844: note that this mean no contract creation
lightclient Jun 1, 2023
1fb71fa
typo
lightclient Jun 1, 2023
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10 changes: 4 additions & 6 deletions EIPS/eip-4844.md
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Original file line number Diff line number Diff line change
Expand Up @@ -107,10 +107,11 @@ We introduce a new [EIP-2718](./eip-2718.md) transaction, "blob transaction", wh
rlp([chain_id, nonce, max_priority_fee_per_gas, max_fee_per_gas, gas_limit, to, value, data, access_list, max_fee_per_data_gas, blob_versioned_hashes, y_parity, r, s])`.
```

The `max_priority_fee_per_gas` and `max_fee_per_gas` fields follow [EIP-1559](./eip-1559.md) semantics
and `access_list` follows [EIP-2930](./eip-2930.md).
The fields `chain_id`, `nonce`, `max_priority_fee_per_gas`, `max_fee_per_gas`, `gas_limit`, `value`, `data`, and `access_list` follow the same semantics as [EIP-1559](./eip-1559.md).

The `max_fee_per_data_gas` is `uint256` and the `blob_versioned_hashes` field represents a list of hash outputs from `kzg_to_versioned_hash`.
The field `to` deviates slightly from the semantics with the exception that it MUST NOT be `nil` and therefore must always represent a 20-byte address. This means that blob transactions cannot have the form of a create transaction.

The field `max_fee_per_data_gas` is a `uint256` and the field `blob_versioned_hashes` represents a list of hash outputs from `kzg_to_versioned_hash`.

The [EIP-2718](./eip-2718.md) `ReceiptPayload` for this transaction is `rlp([status, cumulative_transaction_gas_used, logs_bloom, logs])`.

Expand Down Expand Up @@ -269,9 +270,6 @@ def validate_block(block: Block) -> None:

# add validity logic specific to blob txs
if type(tx) is SignedBlobTransaction:

# destination must be not be empty
assert tx.to != None
# there must be at least one blob
assert len(tx.blob_versioned_hashes) > 0

Expand Down