Function decision_request_bytes_v2 

pub fn decision_request_bytes_v2(
    recipient_agent_id: &str,
    transfer_id: &str,
    decision_id: &str,
    eta_seconds: u64,
    nonce: &str,
    issued_at_unix: i64,
) -> Result<Vec<u8>>

Canonical bytes for an aex-decision-request:v2 message.

Signed by the recipient and returned to the sender when an inbound transfer cannot be answered synchronously — typically because a deferred decider (human, secondary AI, policy engine, or consensus) needs time to evaluate the request. The protocol takes no position on who the decider is.

Format:

aex-decision-request:v2
recipient={recipient_agent_id}
transfer={transfer_id}
decision={decision_id}
eta_secs={eta_seconds}
nonce={nonce}
ts={issued_at_unix}

eta_seconds is a non-negative integer hint for how long the sender should expect to wait. 0 means “as soon as practical”; negative values are rejected.

Reference: ADR-0049.