View source for NodeCore Bootstrap File

See: [[NodeCore_QuickStart]], [[HowTo_run_NodeCore]]

'''Starting with version 0.4.8, the bootstrap file is obsolete.''' Use [[Bootstrap_Downloader]] instead.

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== Overview ==
Syncing NodeCore from scratch could take a long time. While this is always an option, sometimes people may want a faster way.

There is a bootstrap file, which provides this nodecore.dat file.

The latest bootstrap is available from: 

https://explore.veriblock.org/api/stats/download

This includes checksums for the zip/tar files, as well as the unzipped nodecore.dat file itself:

<pre>
{
  ...
  "bootstrapfile_zip":  "http://mirror1.veriblock.org/nodecore-bootstrap-270000.zip",
  "bootstrapfile_tar":  "http://mirror1.veriblock.org/nodecore-bootstrap-270000.tar.gz",
  "bootstrapfile_zip_checksum":  "26f217aa7dc91e14e61dbf9ba085b515",
  "bootstrapfile_tar_checksum":  "d7283707364f923161ce1ccbf2aaab88",
  "bootstrapfile_nodecoredat_checksum":  "2bc879b95bc2be3f893f47f61686fa18",
  ...
}
</pre>

== How to use the bootstrap file ==

# Download it
# Unzip it (this provides a "nodecore.dat" file, which will be several GB)
# Place it in the "nodecore\bin\mainnet" folder.
## If the "mainnet" folder does not exist, then create it.
## If the "mainnet" folder does exist, then ensure it is empty except for the wallet files. For example existing "nodecore.dat-shm" or "nodecore.dat-wal" could cause a conflict.
# Start NodeCore
## Wait a few minutes for NodeCore to load

End result will be the file "nodecore\bin\mainnet\'''nodecore.dat'''", and NC_CLI getstateinfo will show the network_height and local_blockchain_height at least match the bootstrap file height.

== Checksum ==

The API also provides the corresponding checksum via md5sum. Run md5sum against the downloaded file (or the unzipped nodecore.dat file), and it should match the checksum in the API.

<pre>
md5sum nodecore-bootstrap-XXXXX.tar.gz
40bff676ed8a07cf7a260a7af69abe7f  nodecore-bootstrap-XXXXX.tar.gz
</pre>