* save

* save

* save

* save

* Print

* Prevent underflow, return 0 block if tx lookup failed

* Return nil receipt for 0 block

* Update to main erigon-lib

* Fix other places

* Fix other places

* Comment

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

* Print retire

* Print

* Print

* Print

* Print

* Not fail when block is not found

* Remove prints

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

* default api list

* Revert "default api list"

This reverts commit 8f0bf6cb440b35b3ab628cc297fa6ff822038ed3.

* added engine to default

* added to erigon

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

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

Dockerfile requires some --build-arg options.
Fix "docker" target to pass them.
Fix GIT_TAG to reflect the most recent tag related to HEAD, instead of an unrelated most recent tag.
Use it as the image VERSION.

Image tags need to be passed explicitly if needed:

    DOCKER_FLAGS='-t erigon:latest' make docker

* Clean headers pointers when removing links

* Replace the lock

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

* save

* save

* save

* add test

* fix unmarshaling bug

Co-authored-by: Igor Mandrigin <i@mandrigin.ru>

* save

* save

* save

* save

* save

* save

* save

* save

* save

* save

* save

* mumbai

* save

* save

Simplify skeleton requests, limit bor spanCache, more fine grained locking in HeaderDownload (#4194)

* Simplify skeleton requests

* Limit bor cache size

* In the middle of changing lists

* Fix

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

--nat stun is an automatic external IP detection alternative to manual --nat extip option.
It can be used both at home or on production servers without any extra setup.
It is fast (up to 5 ms) and more reliable than alternatives (as the request goes to the public internet).

This auto-detection is useful to run multiple instances of a service in cloud environments
where the node IPs are not known in advance.

* Reduce insertQueue usage, throttle Skeleton requests

* Cleanup

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