The Seismic Transaction

Seismic extends Ethereum's transaction model with encrypted calldata and authenticated reads. This section covers:

• Cryptography — The encryption scheme (ECIES on secp256k1), key derivation, AEAD construction, and client key-management strategies

• Tx Lifecycle — How a Seismic transaction is built, signed, submitted, validated, and executed; the SeismicElements metadata fields; wire vs. signing format; tx-pool validation rules

• Signed Reads — The read variant: Seismic txs sent to eth_call, with msg.sender recovered from the signature