<p>You are thinking of 889271 as a decimal number; it is not. It is a hexadecimal value that just happens to be composed of numeric digits.</p>

<p>That is the <a href="https://github.com/bitcoin/bitcoin/blob/master/src/serialize.h#L276" rel="nofollow noreferrer">Variable Sized Integer serialization</a> of the version number of the Bitcoin Core client that created that database entry.</p>

CC BY-SA 3.0
2018-02-19T04:19:11.697Z
2018-02-19T04:19:11.697Z
Ava Chow
<p>I am opening up the blockchain index databases with leveldb, and I am seeing a repeating number, 889271, at the start of every value entry...</p>

<p>I am attempting to decipher the following key value pair</p>

<pre><code>'b'e2bf047e7e5a191aa4ef34d314979dc9986e0f19251edaba5940fd1fe365a712 = 889271000b010008010000000000000000000000000000000000000000000000000000000000000000000000d9ced4ed1130f7b7faad9be25323ffafa33232a17c3edf6cfd97bee6bafbdd97b9aa8e4ef0ff0f1ecd513f7c
</code></pre>

<p>Using </p>

<pre><code>https://bitcoin.org/en/developer-reference#block-headers
https://en.bitcoin.it/wiki/Bitcoin_Core_0.11_(ch_2):_Data_Storage
</code></pre>

<p>I believe i have everything deciphered properly, except for 889271</p>

<p>Any chance someone can confirm what 889271 represents?</p>

<blockchain>
What does 889271 represent in the blockchain index leveldb databases?
Jeffrey L. Roberts
# What does 889271 represent in the blockchain index leveldb databases?

(Asked by: username_0 on 2018-02-18)

I am opening up the blockchain index databases with leveldb, and I am seeing a repeating number, 889271, at the start of every value entry...
I am attempting to decipher the following key value pair
'b'e2bf047e7e5a191aa4ef34d314979dc9986e0f19251edaba5940fd1fe365a712 = 889271000b010008010000000000000000000000000000000000000000000000000000000000000000000000d9ced4ed1130f7b7faad9be25323ffafa33232a17c3edf6cfd97bee6bafbdd97b9aa8e4ef0ff0f1ecd513f7c

Using 
https://bitcoin.org/en/developer-reference#block-headers
https://en.bitcoin.it/wiki/Bitcoin_Core_0.11_(ch_2):_Data_Storage

I believe i have everything deciphered properly, except for 889271
Any chance someone can confirm what 889271 represents?

**Tags:** blockchain


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## 1 answers

### Answer by username_1 on 2018-02-19. Score: 2 | Accepted answer

You are thinking of 889271 as a decimal number; it is not. It is a hexadecimal value that just happens to be composed of numeric digits.

That is the [Variable Sized Integer serialization](https://github.com/bitcoin/bitcoin/blob/master/src/serialize.h#L276) of the version number of the Bitcoin Core client that created that database entry.


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