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We have to get the state at specific blocks within the past 3 months. For this we have to launch the archive node, as current fast-sync node stores only last 64 Blocks.

  • is it possible to launch geth or any other client with archive-sync option, but not by starting from the genesis block, but let say only for N last blocks?
  • for the running fast-sync node, is it possible to refetch and store the states for N last blocks?
  • any other solution to the problem?
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Erigon might be a good fit (6 day sync for full archive), also has pruning: https://github.com/ledgerwatch/erigon

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