<p>The block presented with the second link (<a href="https://api.blockcypher.com/v1/btc/main/blocks/1" rel="nofollow noreferrer">api.blockcypher.com/v1/btc/main/blocks/1</a>) is not the same as the one presented with <a href="https://blockchain.info/block/00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048" rel="nofollow noreferrer">blockchain.info</a>.</p>

<p>"<strong>api.blockcypher.com</strong>" says block 1 (Height=1) has a "previous block" of all zeroes:
<a href="https://i.sstatic.net/tOvKO.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/tOvKO.png" alt="enter image description here"></a>
but <a href="https://bitcoin.org/en/glossary/block-height" rel="nofollow noreferrer">that is the block with Height=0</a>, not with Height=1 !.</p>

<p>One could argue that "api.blockcypher.com" starts counting (oddly) on "1", but the problem is that <a href="https://api.blockcypher.com/v1/btc/main/blocks/2" rel="nofollow noreferrer">their next block</a> (block 2) has a "previous block" of "00000000839a8..." (correct) which in fact is not their block 1...</p>

<p>That is, <strong>there is a gap in their API</strong>, and the block with a "previous block"="000000000019d66..." or <strong>block with Height=1, is not accessible</strong> using block count:</p>

<ul>
<li>"api.blockcypher.com" block 1 is really the block 0 (Height=0), and </li>
<li>their block 2 is the correct block 2 (Height=2), and so </li>
<li><strong>the block 1 that you are trying to see is unreachable in that API</strong> (!).</li>
</ul>

<p>That also means that <strong>Nonce=2573394689</strong> for <a href="https://blockchain.info/block/00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048" rel="nofollow noreferrer">block 1 from blockchain.info</a> is the correct value.</p>

CC BY-SA 3.0
2018-04-16T19:37:51.470Z
2018-04-16T19:46:46.953Z
2018-04-16T19:46:46.953Z
circulosmeos
<p>I'm looking at nonce data from blockchain.info for block #1 ( <a href="https://blockchain.info/block/00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048" rel="nofollow noreferrer">https://blockchain.info/block/00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048</a> ) and it shows a nonce value of <strong>2573394689</strong> However when I take a look at blockcypher.com ( <a href="https://api.blockcypher.com/v1/btc/main/blocks/1" rel="nofollow noreferrer">https://api.blockcypher.com/v1/btc/main/blocks/1</a> ) they report a nonce value of <strong>2083236893</strong> for the first block. </p>

<p>Is this a mistake? Is it possible for there to be a conflict in the true nonce? When I check block #2 both sites show the exact same nonce.</p>

<nonce><blockchain-explorer>
Discrepancy Between Nonce for Single Block
David Lynch
# Discrepancy Between Nonce for Single Block

(Asked by: username_0 on 2018-03-07)

I'm looking at nonce data from blockchain.info for block #1 ( <https://blockchain.info/block/00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048> ) and it shows a nonce value of **2573394689** However when I take a look at blockcypher.com ( <https://api.blockcypher.com/v1/btc/main/blocks/1> ) they report a nonce value of **2083236893** for the first block.

Is this a mistake? Is it possible for there to be a conflict in the true nonce? When I check block #2 both sites show the exact same nonce.

**Tags:** nonce, blockchain-explorer


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## 1 answers

### Answer by username_1 on 2018-04-16. Score: 2

The block presented with the second link ([api.blockcypher.com/v1/btc/main/blocks/1](https://api.blockcypher.com/v1/btc/main/blocks/1)) is not the same as the one presented with [blockchain.info](https://blockchain.info/block/00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048).

"**api.blockcypher.com**" says block 1 (Height=1) has a "previous block" of all zeroes:
[![enter image description here](https://i.sstatic.net/tOvKO.png)](https://i.sstatic.net/tOvKO.png)
but [that is the block with Height=0](https://bitcoin.org/en/glossary/block-height), not with Height=1 !.

One could argue that "api.blockcypher.com" starts counting (oddly) on "1", but the problem is that [their next block](https://api.blockcypher.com/v1/btc/main/blocks/2) (block 2) has a "previous block" of "00000000839a8..." (correct) which in fact is not their block 1...

That is, **there is a gap in their API**, and the block with a "previous block"="000000000019d66..." or **block with Height=1, is not accessible** using block count:

* "api.blockcypher.com" block 1 is really the block 0 (Height=0), and
* their block 2 is the correct block 2 (Height=2), and so
* **the block 1 that you are trying to see is unreachable in that API** (!).

That also means that **Nonce=2573394689** for [block 1 from blockchain.info](https://blockchain.info/block/00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048) is the correct value.


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