zks_getL2ToL1MsgProof | Alchemy Docs

Retrieves the proof for an L2 to L1 message.

apiKeystringRequired

This endpoint expects an object.

L2 block numberstringRequiredformat: "^0x[0-9a-fA-F]{1,8}$"

The L2 block number.

Sender addressstringRequiredformat: "^0x[0-9a-fA-F]{40}$"

The sender’s address.

Message hashstringRequiredformat: "^0x[0-9a-f]{64}$"

The message hash.

Log positionintegerOptional

The log position in L2.

The proof for the L2 to L1 message.

prooflist of strings

Array of strings, each representing a piece of the proof.

rootstringformat: "^0x[0-9a-f]{64}$"

Root hash of the proof.

idinteger

Identifier of the message within the block.

1	import requests
2
3	url = "https://zksync-mainnet.g.alchemy.com/v2/:apiKey"
4
5	payload = {
6	"0": 100000,
7	"1": "0x1111111111111111111111111111111111111111",
8	"2": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
9	"3": 0
10	}
11	headers = {"Content-Type": "application/json"}
12
13	response = requests.post(url, json=payload, headers=headers)
14
15	print(response.json())

1	{
2	"id": "1",
3	"jsonrpc": "2.0",
4	"result": {
5	"proof": [
6	"0x8c48910df2ca7de509daf50b3182fcdf2dd6c422c6704054fd857d6c9516d6fc"
7	],
8	"root": "0x920c63cb0066a08da45f0a9bf934517141bd72d8e5a51421a94b517bf49a0d39",
9	"id": 0
10	}
11	}