README

Programs contained in this repository:

• zcash.py: given a user-specific API key in a file named api-key, connects to https://getblock.io/ and sends RPC commands and other custom commands
• zcash-net: starts multiple Zcash nodes simultaneously
• zcash-cli: provides the RPC interface to any of the nodes started by zcash-net
• get-tx: given a transaction ID, retrieves this transaction using the API at https://api.zcha.in.
• zcash-send: given the right input data, creates a transparent transaction on any of the nodes started by zcash-net

Data contained in this repository (all data obtained from the JoinSplit circuit as implemented using the bellman library):

• joinsplit_r1cs.zip: the circuit's R1CS constraints
• joinsplit_r1cs_names.zip: the R1CS constraints' names
• joinsplit_aux_names.zip: the auxiliary inputs' ("witnesses" or "secret inputs") names
• input_names.txt: the primary inputs' (or "public inputs") names
• tx_fee_points_and_coeffs.zip: files detailing the difference in inputs and outputs to the R1CS constraints as well as the coefficients of the $h(x)$ quotient with identical JoinSplits but vpub_new set to $0$ for one and and $1$ for the other. The js1_ and js2_ prefixes indicate which JoinSplit is referred to. a stands for left input, b for right input, c for output, h for the $h(x)$ quotient. _points refers to evaluations, _coeffs to coefficients of a polynomial.
• test_vectors_wire_test.hex: representation of the two JoinSplits used to obtain tx_fee_points_and_coeffs.ip

The zcash repository is used as a submodule. It needs to be built in order to use zcash-net, zcash-cli, and zcash-send.