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Nim implementation of the Ethereum Beacon Chain

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**Describe the bug** NilDeref in getPayload from eth1_monitor.nim nimbus-client-besu-0 | beacon_chain/nimbus_beacon_node.nim(2117) main nimbus-client-besu-0 | beacon_chain/nimbus_beacon_node.nim(1985) handleStartUpCmd nimbus-client-besu-0 | beacon_chain/nimbus_beacon_node.nim(1804) doRunBeaconNode nimbus-client-besu-0 | beacon_chain/nimbus_beacon_node.nim(1597) start nimbus-client-besu-0 | beacon_chain/nimbus_beacon_node.nim(1541) run nimbus-client-besu-0 |...

Packages that should be installed: ```text base-devel git mingw-w64-x86_64-toolchain mingw-w64-x86_64-cmake winpty ``` Supported [environment](https://www.msys2.org/docs/environments/): MINGW64.

Gossip messages are decompressed twice in the current flow: During message id generation: https://github.com/status-im/nimbus-eth2/blob/74f2350a2c85b60230e2d181ef34fe1831a5ba1a/beacon_chain/networking/eth2_network.nim#L1846 Once during validation: https://github.com/status-im/nimbus-eth2/blob/74f2350a2c85b60230e2d181ef34fe1831a5ba1a/beacon_chain/networking/eth2_network.nim#L1952 Once would be enough, really - messages that fail to decompress are...

**Describe the bug** Nimbus compiled from `unstable` for gnosis-chain, version `Nimbus/v22.3.0-57fc9d-stateofus` Lighthouse VC connecting to Nimbus. Lighthouse VC shows: ``` Mar 28 16:25:29.083 INFO Connected to beacon node endpoint: https://gnosis-b.cryptomanufaktur.net/,...

For example, using `-j4`: ``` Building: build/nimbus_beacon_node Building: build/deposit_contract Building: build/resttest Building: build/logtrace SIGPIPE: Pipe closed. SIGPIPE: Pipe closed. Build completed successfully: build/logtrace Building: build/ncli Build completed successfully: build/resttest Building:...

**Describe the bug** I've several times hit the scenario where one of my nodes gets stuck in following loop, on pyrmont. ``` WRN 2020-11-19 15:56:02.879+00:00 Local timer is broken or...

One problem in ethereum is the public proposer election and the ability to map validator to IP and thus DoS all proposers one by one. Also, when upgrading, all peers...

Using the [stop-at-synced-epoch](https://github.com/status-im/nimbus-eth2/tree/stop-at-synced-epoch) branch that adds the option with the same name, I did a rough benchmark of initial syncing speed on mainnet for a regular build running on Linux...

It appears something is wrong with the metrics endpoint on `unstable` branch on Windows. I've been seeing slower and slower responses, which eventually result in failure to scrape metrics and...

bug
:checkered_flag: performance
:exclamation: high priority

Nimbus is compatible with the Blox staking SSV validator node which can be used to create highly-available redundant setups (where 1 out of 3 or 2 out 5 are allowed...