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Blockchain-import-and-export-instructions.md

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Blockchain Import/Export

Note: Binary format is concatenated RLP-encoded blocks

C++

Import:

eth --import <filename>

Formats supported: binary

Export:

eth --export Myfile --format binary --from 45 --to latest

Formats supported: hex (newlines separating), binary or JSON --from and --to also support blockhashes

Go

Import

geth import <filename>

Formats supported: binary

Genesis block:

geth --genesis <filename> --genesisnonce <nonce>

Formats supported: json

Export

geth export <filename>

Formats supported: binary

Python