Cold wallet made out of a chain

Cold wallet made out of a chain

I used a stainless steel chain to encode my 24 words master seed. Since a 24 word seed requires 24*11 = 264 bits, the chain must have 264 links. My chain is approximately 12 feet long (3.7 meters). Each link is either pinched/twisted (binary 1) or normal (binary 0). The decoding requires going through all the links, every 11 links (11 bits) you get a word. It's a PITA to decode but it's a cold wallet, so I don't expect to do it very often. I don't even bother to remember the start link nor which type of link is a binary 1 or 0 since there are at most 4 ways to decode the chain (two directions and for each direction two different interpretation of the link).

A test recovery on a HW is mandatory before declaring the chain a proper cold wallet 🙂

The chain can be buried or hidden somewhere, it's not that big. It is waterproof, fireproof and do not oxidize.

What do you think? does it make any sense? How would you mark the links? (pinching, denting, twisting, welding the link somehow, etc…)

Here my chain wallet, yes, it's just a picture of a chain (yet to be encoded!!!)

https://i.redd.it/uyxo7n0f4kn11.png

submitted by /u/gbitg
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Bitcoin – The Currency of the Internet

Erik Voorhees: “Roger – please stop referencing me to back up your opinion that Bitcoin Cash is Bitcoin. It isn’t. Bitcoin is the chain originating from the genesis block with the highest accumulated proof of work. The Bitcoin Cash fork failed to gain majority, thus it is not Bitcoin.”

Erik Voorhees: “Roger - please stop referencing me to back up your opinion that Bitcoin Cash is Bitcoin. It isn't. Bitcoin is the chain originating from the genesis block with the highest accumulated proof of work. The Bitcoin Cash fork failed to gain majority, thus it is not Bitcoin.” submitted by /u/eragmus
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Bitcoin – The Currency of the Internet

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Bitcoin – The Currency of the Internet

POWER CONSUMPTION PERCEPTION POW CONSENSUS MECHANISM FOR BLOCK CHAIN (patentscope.wipo.int)

A power consumption perception PoW consensus mechanism for a block chain, comprising the following process steps: (1) in a Bitcoin system, all nodes compete with each other on the basis of respective computer computing power to jointly solve an SHA math problem that is complex to solve but easy to verify, and a node which solves the problem at the fastest speed obtains a block accounting right and Bitcoin award automatically generated by the system; (2) interconnecting physical servers…

Bitcoin