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Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

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* Export chainspecs into json files

* Add sepolia

* Add more chains

* Extract rest of the chains

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>

* Restore skip analysis optimisation

* Make checkChangeSets work with snapshots

* Add syncmode to checkChangeSets

* Add block number for BSC

* Fix lint

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

* Further simplify header download, req/resp metrics

* Not break the loop

* Move anchors correctly

* Log anchor state

* Print minNum

* Print hash

* Always add links

* Remove obsolete test

* cleanup

Co-authored-by: Alex Sharp <alexsharp@Alexs-MacBook-Pro.local>
Co-authored-by: Alex Sharp <alexsharp@alexs-macbook-pro.home>

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* Engine API: remove unauth port

* Remove reduntant auth from variable names

RPCDaemon: open snapshots on startup (because now snapshots dir is atomic), even if no Erigon available (#4110)

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* Simplify header downloader

* Remove VerifyQueue

* Fix

* More fixes

* Fix

* Break out of the loop

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

Rename sentry.ControlServerImpl to sentry.MultyClient and sentry.SentryServerImpl to sentry.GrpcServer #444

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* atomic snapshot dir

* atomic snapshot dir

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

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* reuse the generated test blockchain across tests
* copy ChainPack to ensure test isolation

This improves the speed from 10s to 4s.

The package tests timeout can be reduced to 5s:

    go test ./cmd/rpcdaemon/commands -count 1 --timeout 5s

* binary tree

* Binary commitment tree

* [erigon2] Bin tree support

* Point to latest erigon-lib

Co-authored-by: Alexey Sharp <alexeysharp@Alexeys-iMac.local>

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* penalize naughty peers

* lint

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