40 - v, r, s
r and s are the two parts of the ECDSA signature produced by the transaction originator using the private key.
v is the recovery identifier which is calculated as either one of 27 or 28, or as the chain ID (Ethereum mainnet chainID is 1) doubled plus 35 or 36.
- ECDSA Signature -> 65 Bytes
- r, s -> signature
- 32 bytes each
- v -> recovery identifier 1 byte
- v -> 27 or 28 or
- chainID*2 + 35 or 36
# seth chain
ethlive
# seth chain-id
1