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Add faq: why timestamps don't always increase

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hunicus 2022-11-13 22:36:46 -05:00
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7
frontend/src/app/docs/api-docs/api-docs-data.ts
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@ -8653,6 +8653,13 @@ export const faqData = [
fragment: "why-empty-blocks", fragment: "why-empty-blocks",
title: "Why are there empty blocks?", title: "Why are there empty blocks?",
}, },
{
type: "endpoint",
category: "advanced",
showConditions: bitcoinNetworks,
fragment: "why-block-timestamps-dont-always-increase",
title: "Why don't block timestamps always increase?",
},
{ {
type: "category", type: "category",
category: "self-hosting", category: "self-hosting",

4
frontend/src/app/docs/api-docs/api-docs.component.html
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@ -203,6 +203,10 @@
<p>When a new block is found, mining pools send miners a block template with no transactions so they can start searching for the next block as soon as possible. They send a block template full of transactions right afterward, but a full block template is a bigger data transfer and takes slightly longer to reach miners.</p><p>In this intervening time, which is usually no more than 1-2 seconds, miners sometimes get lucky and find a new block using the empty block template.</p> <p>When a new block is found, mining pools send miners a block template with no transactions so they can start searching for the next block as soon as possible. They send a block template full of transactions right afterward, but a full block template is a bigger data transfer and takes slightly longer to reach miners.</p><p>In this intervening time, which is usually no more than 1-2 seconds, miners sometimes get lucky and find a new block using the empty block template.</p>
</ng-template> </ng-template>
<ng-template type="why-block-timestamps-dont-always-increase">
<p>Block validation rules do not strictly require that a block's timestamp be more recent than the timestamp of the block preceding it. Without a central authority, it's impossible to know what the exact correct time is. Instead, the Bitcoin protocol requires that a block's timestamp meet certain requirements. One of those requirements is that a block's timestamp cannot be older than the median timestamp of the 12 blocks that came before it. See more details <a href="https://en.bitcoin.it/wiki/Block_timestamp" target="_blank">here</a>.</p><p>As a result, timestamps are only accurate to within an hour or so, which sometimes results in blocks with timestamps that appear out of order.</p>
</ng-template>
<ng-template type="who-runs-this-website"> <ng-template type="who-runs-this-website">
The official mempool.space website is operated by The Mempool Open Source Project. See more information on our <a [routerLink]="['/about']">About page</a>. There are also many unofficial instances of this website operated by individual members of the Bitcoin community. The official mempool.space website is operated by The Mempool Open Source Project. See more information on our <a [routerLink]="['/about']">About page</a>. There are also many unofficial instances of this website operated by individual members of the Bitcoin community.
</ng-template> </ng-template>