@a-blockchain (SPV) with the trustless anonymous payment hub Tumblebit seem to be
about privacy and scaling is discussed. In Bulletproofs, no trusted setup, but slower and with snarks, trusted set up but faster. Theres “Mimblewimble" too and talk of trust and preservation of anonymity and Btc integrity and trust too. Interesting times to say the least. Love the updates and news you provide too