Steven

- [x] [Inner product optimizations](https://github.com/zcash/halo2/pull/559) or with sum of products optimization like in https://github.com/zkcrypto/bls12_381/pull/84 - [x] [FFT optimizations?](https://github.com/zcash/halo2/pull/543/files) - Reduce in-memory cost of polynomials in `poly::Evaluator` - [x] Don't store...

A more convenient way is needed to view all the transactions associated with a shielded address. This would be the loose equivalent of the `listtransactions` RPC call for transparent addresses....