As many of you are aware IBM's code contribution to Hyperledger at
https://github.com/openblockchain/obc-peer
contains an implementation of PBFT for consensus, which is part of
protocol "Sieve" that addresses non-determinism.

A technical paper describing the approach of "Sieve" and how to handle
non-deterministic transactions has just been made available at
http://www.zurich.ibm.com/~cca/papers/sieve.pdf

For referencing it, please wait until this appears as a technical report on
arxiv.org -- we will inform the list again.

Regards,

Christian

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Christian Cachin email: cca@...
IBM Research - Zurich tel: +41-44-724-8989
Säumerstrasse 4
CH-8803 Rüschlikon, Switzerland http://www.zurich.ibm.com/~cca