---
title: "Immortal — Brad Jasper"
description: "A simple app for saving web pages to Bitcoin, the content or its hash, as a tamper-proof record."
url: https://bradjasper.com/projects/immortal/
---

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# Immortal

Archived · 2019 · Bitcoin

A side project; the site is offline.

A simple app for saving web pages to Bitcoin, the content or its hash, as a tamper-proof record.

- [Source on GitHub](https://github.com/synfonaut/immortal)
- [Archived site (Immortal.sv)](https://web.archive.org/web/20200520111737/https://immortalsv.com/)

![Immortal in 2019: "Immortalize websites on Bitcoin (BSV)", with a URL field](https://bradjasper.com/_astro/immortal-screenshot-2019.Dhh2KuGt_Z1LzpNw.webp)

Immortal (Immortal.sv) was a fun side project from early 2019. The idea was to archive the world’s information on-chain: paste a link, and it posted a snapshot of the page, or a hash of it, to Bitcoin. That created a record nobody could quietly change later, in an app anyone could use in a few seconds.

I talk about it in [Building on Bitcoin #1](https://bradjasper.com/videos/building-on-bitcoin-1-isaac-morehouse/).

## Videos

[Building on Bitcoin #1 with Isaac Morehouse](https://bradjasper.com/videos/building-on-bitcoin-1-isaac-morehouse/) · Interview · October 2020 · [Watch on YouTube ↗](https://www.youtube.com/watch?v=4F4kWu_6vVE)