2020-07-09 Eth2 Call 43.txt

Nimbus:

Validator’s book: https://status-im.github.io/nim-beacon-chain/
Auditor’s book: https://status-im.github.io/nim-beacon-chain/auditors-book/

https://github.com/ethereum/eth2.0-pm/issues/165


Altona bugs:
- networking
- missed attestations
	- gossipsub not maintaining the mesh 

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Testing and release updates

Backward compatible
Network spec
will go through with Protocol labs

Rumor update last week

Beacon-Fuzz:
- Blog post soon
- Docker finished for “fuzzing at home”
- Nimbus IndexError with attester slashing
- Lodestar: Memory Exhaustion when passing invalid ENR
- Rust snappy crate had a bug finally merged
- focus on differential fuzzing now

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Testnet Altona: non-finality due to whale not running a node


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Client updates

Lodestar: merged 0.12 to merge
lurking in Altona
Missing Gossipsub 1.1

Trinity: Altona as well
but speed too low

Nethermind: refocus on Eth1

Jacek: Nethermind for deposits?
Goerli node that would support Prism and Lighthouse with Nethermind
as deposits provider.
Improved crypto precompiles that are used a lot for deposits


Nimbus

Prysmatic: key management, creating new accounts
Remote keystone
Working on Supranational BLST
bug fixing addressing feedback
UX improvement

Lighthouse:
REST API work, almost completed
Working on Supranational BLST, 75% increase in sync speed on Altona
Finalizing peer scoring system
Work started on slasher
Completed response to Trail of Bits audits

Teku:
Memory management improvement during periods of non-finalisation
Persisting proto array to disk
Peer management improvement
JVM-libp2p and att gossip publishing fixes
Failing to detect chain reorg due to skipped slots later filled with valid blocks
writeup: https://www.symphonious.net/2020/07/06/exploring-ethereum-2-the-curious-case-of-the-invisible-fork


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Incident response
Mehdi will start a working group

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Weak subjectivity as it pertains to client security and UX
https://hackmd.io/@adiasg/BJpMnEupL

Avoid double-spending. Doc about what can go wrong and how to handle it.

Working group on bootstrapping from a “valid” state
4 propositions (CLI, signatures, Web-of-Trust, …)

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TXRX

Simulator for spec

Vitalik:
Kate commitment
Snarkify verification and state transition?

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Hash-to-curve 9

Carl: compatible with H2C 7

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Open discussion

Client launchpad integration
https://serene-carson-3331d5.netlify.app/
<PASS REDACTED>