Hamdi/func docs (#110)

* updated docs * conf sig comment * Update plasmaMVPFunctions.md * Update plasmaMVPFunctions.md * Update plasmaMVPFunctions.md * Update plasmaMVPFunctions.md * Update plasmaMVPFunctions.md
FourthState · Mar 2, 2019 · 5f205fa · 5f205fa
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diff --git a/docs/plasmaMVPFunctions.md b/docs/plasmaMVPFunctions.md
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 # PlasmaMVP Documentation
 
-The transaction bytes, `txBytes`, in the contract follow the convention:  
+The transaction bytes, `txBytes`, in the contract follows the convention:  
+
+All fields in the transaction bytes must be padded to the EVM data type byte length.
+i.e addresses must be 20 bytes, and integers must be padded to 32 bytes. Both input confirm singatures must be 130 bytes in length.
+One signature(65 bytes) for each possible "grandparent" input concatted together. If not applicable, 130 zero bytes.
+
+The final RLP encoded txBytes will be **811** bytes in length.
 ```
 RLP_ENCODE ([
   [Blknum1, TxIndex1, Oindex1, DepositNonce1, Owner1, Input1ConfirmSig,