Function document_token_payment_extra_sighash_data 

pub fn document_token_payment_extra_sighash_data(
    token_id: &[u8; 32],
    owner_id: &[u8; 32],
    data_contract_id: &[u8; 32],
    document_id: &[u8; 32],
    amount: u64,
    platform_version: &PlatformVersion,
) -> Result<Vec<u8>, ProtocolError>

Extra sighash data of a document action paid from a token shielded pool (TokenPaymentInfo::V1): the token id, the batch owner, the document’s contract and id and the amount paid, so a bundle proven for one document cannot be replayed for another document, batch owner, token or cost.