Quote from: Yamane_Keto on Today at 03:53:52 AM

Quote from: NotATether on March 28, 2023, 07:06:52 PM

like a natural disaster.

The problem of creating more than one wallet seed with earthquakes is in distributing them, you will be forced to keep one of them away from you or your home and perhaps your geographical area, which increases the risk that someone else will be able to know it.

There are multiple ways to encrypt/secure your seed backups so they are not readable even if someone finds them in the open at a different location from yours.
There are ways to encrypt a seed in a way that you could show it to people, they would think it's a real seed, but they wouldn't be able to get to your coins.
There are also ways to encrypt a seed in a way that you could show it to people and they wouldn't even recognise it as a seed, so they wouldn't be able to get to your coins.

For example: Simple cipher (Youtube link with timestamp), Passphrase, XOR, Shamir secret sharing, Multisig, and more.

Make 3 seed backups in steel washers (or titanium). And ideally encrypt them with a simple cipher (easiest and fastest) or use a passphrase and store that separately.

Earthquake proof, Low cost, affordable, easily scalable, indestructible, fireproof 1400°C (a house fire is around 1100°C), waterproof, corrosion proof, shock proof, offline cold wallet, seed or passphrase backup.

[img width="1280" height="720" alt="Click me" title="Click me for more high res picture"]https://i.etsystatic.com/41503409/r/il/689efd/4813988559/il_1588xN.4813988559_fcds.jpg[/img]
Picture taken from here: https://www.etsy.com/listing/1434977816

More information on that topic here:

https://jlopp.github.io/metal-bitcoin-storage-reviews/
https://incoherency.co.uk/blog/stories/diy-cryptosteel-capsule.html
http://bulletproofbitcoin.com/
https://blog.lopp.net/a-treatise-on-bitcoin-seed-backup-device-design/
https://www.econoalchemist.com/post/backup
https://blockmit.com/english/guides/diy/make-cold-wallet-washers/
https://bitcointalk.org/index.php?topic=5389446.0