Last version updated draft

 https://github.com/bitaps-com/bips/blob/master/bip-block-batch-filters.mediawiki

Summary changes:

- return back to Golomb coding 

- implemented more simple and effective shema

- Total filters size  is smaller then BIP 158 at all total estimated savings more than 20% (exactly info will be soon)

- filter is deterministic  and could be committed as commitment in coinbase transaction in future

- flexible GCS parameters to to maintain the necessary FPS

- spliting filter for 2 parts: unique elements and duplicated elements

- duplicated elements could be encoded more effective

Open questions:

- Optimal range for batch?

- Why we need sip has instead of just use first 64 bits from pub key/script hash?

- Downloading unique/duplicated elements separately? Just add filter types for these purposes?

Thanks for any feedback or discussions 

    Aleksey Karpov