optimism

Optimism (OPTIMISM)

Method: POST eth_sign

dropdown
POST

eth_sign

Method not allowed

The sign method calculates an Ethereum specific signature with: sign(keccak256("\x19Ethereum Signed Message:\n" + len(message) + message))).

By adding a prefix to the message makes the calculated signature recognisable as an Ethereum specific signature. This prevents misuse where a malicious DApp can sign arbitrary data (e.g. transaction) and use the signature to impersonate the victim.

Note the address to sign with must be unlocked.

Parameters

DATA - string

address.

DATA - string

message to sign.

Request

curl --location --request POST 'https://optimism.getblock.io/mainnet/' \
--header 'x-api-key: YOUR-API-KEY' \
--header 'Content-Type: application/json' \
--data-raw '{"jsonrpc": "2.0",
"method": "eth_sign",
"params": ["0xbec4e80531dad6a9989828d174cc2878b1e3123d", "0xdeadbeaf"],
"id": "getblock.io"}'


Response

{
    "result": "null",
    "id": "getblock.io",
    "status_code": 405,
    "message": "Method not allowed"
}