<p>You can do that with Bitcoin-core but it's not recommended, You may want to use electrum instead of Bitcoin-core. </p>

<p>You don't have to download the blockchain using electrum.org. </p>

CC BY-SA 3.0
2018-02-27T08:12:58.133Z
Not entirely true, AFAIK you still *can* do what was asked with Bitcoin Core, just no longer the recommended option.
Willtech
CC BY-SA 3.0
2018-02-27T14:15:12.473Z
Yeah, you're right. I've edited the answer!
Tailer
CC BY-SA 3.0
2018-02-23T23:20:04.043Z
2018-02-27T14:13:55.380Z
2018-02-27T14:13:55.380Z
Tailer
<p>I think you can still do that <s>if someone running a full node (non-pruned) will make you a <a href="https://bitcoin.stackexchange.com/a/42916/75001"><code>bootstrap.dat</code></a></s>.</p>

<p>From <a href="https://bitcoin.org/bin/block-chain/README.txt" rel="nofollow noreferrer">https://bitcoin.org/bin/block-chain/README.txt</a>:</p>

<blockquote>
  <p>As of Bitcoin Core version 0.10.0 and later, the block chain bootstrap
  torrent hosted here takes more time to download and import than it would
  to simply start Bitcoin Core and let it sync itself.</p>
  
  <p>Forum thread on BitcoinTalk:<br>
  <a href="https://bitcointalk.org/index.php?topic=145386.0" rel="nofollow noreferrer">https://bitcointalk.org/index.php?topic=145386.0</a></p>
  
  <p>Bitcoin-Qt/bitcoind version 0.7.1 and later supports a special import feature:  If the file "bootstrap.dat" is found in the bitcoin data directory, it will validate and import all blockchain data found in that file.  The following torrent presents a bootstrap.dat file for that feature.</p>
</blockquote>

<p>From <a href="https://github.com/bitcoin-dot-org/bitcoin.org/issues/846" rel="nofollow noreferrer">https://github.com/bitcoin-dot-org/</a>:</p>

<blockquote>
  <p>As of Bitcoin Core version 0.10.0 and later, the block chain bootstrap
  torrent formerly hosted here is <em>slower</em> than a direct download using
  the bitcoin P2P protocol &amp; client.  If you want the torrent for other
  reasons, please visit:</p>
  
  <p><a href="https://bitcointalk.org/index.php?topic=145386.0" rel="nofollow noreferrer">https://bitcointalk.org/index.php?topic=145386.0</a></p>
  
  <p>To download the latest version of Bitcoin Core, please visit:</p>
  
  <p><a href="https://bitcoin.org/en/download" rel="nofollow noreferrer">https://bitcoin.org/en/download</a></p>
</blockquote>

<p>Further reading, the linked <a href="https://bitcointalk.org/index.php?topic=145386.0" rel="nofollow noreferrer">bitcoin.talk</a> page:</p>

<blockquote>
  <p>Updated:  August 23, 2014</p>
</blockquote>

<p>Also checking <a href="https://bitcoin.org/bin/block-chain/" rel="nofollow noreferrer">https://bitcoin.org/bin/block-chain/</a>:</p>

<blockquote>
  <p>24-Aug-2014 01:40</p>
</blockquote>

<p>I think you can still do this if someone running a full node (non-pruned) will make you a <a href="https://bitcoin.stackexchange.com/a/42916/75001"><code>bootstrap.dat</code></a> <em>however</em> your trust in the provider must be implicit.</p>

<p>If you want to keep only a limited number of blocks, enable <code>prune={bytes}</code> with bytes > 550 in your <code>bitcoin.conf</code> file.</p>

CC BY-SA 3.0
2018-02-24T23:22:55.927Z
This is not a reasonable answer. Bootstrap files are not verified by the node and are no longer the suggested way of initial sync.
Ron
CC BY-SA 3.0
2018-02-25T07:43:38.260Z
@Ron There are always caveats. Yes, you must trust that the supplier of the file is honest and is on the right chain. I *thought* that each block was still validated albeit that the node has no knowledge of whether it is on the right chain. Somewhat different importing a bootstrap for only the last month to doing so for initial sync. Otherwise, the answer is, no - there is no way. Possibly I misinterpreted the question, thinking the OP was otherwise up to date.
Willtech
CC BY-SA 3.0
2018-02-26T09:20:51.450Z
There have always been caveats with using a bootstrap file but it was no longer suggested beginning with 0.10.0 due to the introduction of a faster synchronization algorithm. See https://github.com/bitcoin-dot-org/bitcoin.org/issues/846
Ron
CC BY-SA 3.0
2018-02-27T07:56:39.590Z
@Ron A useful link - I was aware the answer was something like that third-hand but had not actually read it myself
Willtech
CC BY-SA 3.0
2018-02-27T20:46:45.787Z
I have updated my answer. Note that the official information from bitcoin.org says that the node will validate and import all blockchain data found in that file when using bootstrap.dat.
Willtech
CC BY-SA 3.0
2018-02-23T23:38:55.850Z
2018-02-27T08:10:04.580Z
2018-02-27T08:10:04.580Z
Willtech
<p>Anyone have any idea how can i do with bitcoin core.</p>

<p>Thanks in advance.</p>

<bitcoin-core><bitcoind>
How can i sync only the last month of the blockchain with bitcoin core?
nk0
# How can i sync only the last month of the blockchain with bitcoin core?

(Asked by: username_0 on 2018-02-23)

Anyone have any idea how can i do with bitcoin core.

Thanks in advance.

**Tags:** bitcoin-core, bitcoind


---

## 2 answers

### Answer by username_1 on 2018-02-23. Score: 2 | Accepted answer

You can do that with Bitcoin-core but it's not recommended, You may want to use electrum instead of Bitcoin-core.

You don't have to download the blockchain using electrum.org.

> **Comments:**
> **username_2**: Not entirely true, AFAIK you still *can* do what was asked with Bitcoin Core, just no longer the recommended option.  
> **username_1**: Yeah, you're right. I've edited the answer!  

---

### Answer by username_2 on 2018-02-23. Score: 1

I think you can still do that ~~if someone running a full node (non-pruned) will make you a [`bootstrap.dat`](https://bitcoin.stackexchange.com/a/42916/75001)~~.

From <https://bitcoin.org/bin/block-chain/README.txt>:

> As of Bitcoin Core version 0.10.0 and later, the block chain bootstrap
> torrent hosted here takes more time to download and import than it would
> to simply start Bitcoin Core and let it sync itself.
>
> Forum thread on BitcoinTalk:  
> <https://bitcointalk.org/index.php?topic=145386.0>
>
> Bitcoin-Qt/bitcoind version 0.7.1 and later supports a special import feature: If the file "bootstrap.dat" is found in the bitcoin data directory, it will validate and import all blockchain data found in that file. The following torrent presents a bootstrap.dat file for that feature.

From [https://github.com/bitcoin-dot-org/](https://github.com/bitcoin-dot-org/bitcoin.org/issues/846):

> As of Bitcoin Core version 0.10.0 and later, the block chain bootstrap
> torrent formerly hosted here is *slower* than a direct download using
> the bitcoin P2P protocol & client. If you want the torrent for other
> reasons, please visit:
>
> <https://bitcointalk.org/index.php?topic=145386.0>
>
> To download the latest version of Bitcoin Core, please visit:
>
> <https://bitcoin.org/en/download>

Further reading, the linked [bitcoin.talk](https://bitcointalk.org/index.php?topic=145386.0) page:

> Updated: August 23, 2014

Also checking <https://bitcoin.org/bin/block-chain/>:

> 24-Aug-2014 01:40

I think you can still do this if someone running a full node (non-pruned) will make you a [`bootstrap.dat`](https://bitcoin.stackexchange.com/a/42916/75001) *however* your trust in the provider must be implicit.

If you want to keep only a limited number of blocks, enable `prune={bytes}` with bytes > 550 in your `bitcoin.conf` file.

> **Comments:**
> **username_3**: This is not a reasonable answer. Bootstrap files are not verified by the node and are no longer the suggested way of initial sync.  
> **username_2**: @username_3 There are always caveats. Yes, you must trust that the supplier of the file is honest and is on the right chain. I *thought* that each block was still validated albeit that the node has no knowledge of whether it is on the right chain. Somewhat different importing a bootstrap for only the last month to doing so for initial sync. Otherwise, the answer is, no - there is no way. Possibly I misinterpreted the question, thinking the OP was otherwise up to date.  
> **username_3**: There have always been caveats with using a bootstrap file but it was no longer suggested beginning with 0.10.0 due to the introduction of a faster synchronization algorithm. See https://github.com/bitcoin-dot-org/bitcoin.org/issues/846  
> **username_2**: @username_3 A useful link - I was aware the answer was something like that third-hand but had not actually read it myself  
> **username_2**: I have updated my answer. Note that the official information from bitcoin.org says that the node will validate and import all blockchain data found in that file when using bootstrap.dat.  

---

