Part 7/9:
Use a single, thick piece of stainless steel or titanium for stamping or etching; avoid assembling multiple pieces unless necessary.
Be cautious with complex designs: Tiled or multi-piece solutions can be more fragile.
Follow a clear, understandable system: Future you or your heirs must be able to decipher the backup easily.
Limit copies: Keeping multiple copies increases risk; focus on a secure, singular backup.
What to Avoid
Don't trust anyone else to write or engrave your seed phrase.
Never create an easily guessable seed phrase. Avoid simple repeated words or common phrases.
Don't rely on low-melting metals or flimsy materials that could be destroyed easily.