Sam will give an update on the CESR (Composable Event Streaming Representation) specifications. Ideally he will also be able to contrast CESR with a new IETF specification called CBOR Common Deterministic Encoding (CDE) aka draft-ietf-cbor-cde-00.

On the W3C Credentials Community Group mailing list, Anders Rundgren said CDE may be significant because:
- JSON and XML require 33% more space than CBOR for dealing with binary data.
- The availability of a textual counterpart (Diagnostic Notation) makes CBOR suited for configuration files.
- Last but not least, deterministic encoding eliminates stuffing data-to-be signed in B64 or relying on complex canonicalization schemes.
Although the standard is not yet finalized,  outstanding issues only relate to edge-cases like NaN payloads. Anders also pointed to this testbed where you can try CDE. 

Sam explained that TSP routing is a unique combination of vector and table routing. He shared this discussion thread from the KERI work: https://github.com/WebOfTrust/keripy/discussions/612

Ed Eykholt asked if it is proposed that CESR is the only serialization format for the TSP. Sam explained that yes, because CESR can carry JSON, CBOR, and MsgPack.