Keep kits free
Kits are free so price is never the reason someone skips metal seed backup. Materials and postage are paid from voluntary Bitcoin and Lightning donations.
On-chain Bitcoin
Send any amount to the project receive address:
bc1qexampledonationaddressreplace000000000000
Verify this address on a second channel if you are donating a large amount. Never send funds to addresses from untrusted mirrors.
Prefer Lightning for smaller amounts. Replace the placeholder with your LNURL or static invoice:
lnurl1dp68gurn8ghj7example…replace-me
Or link a BTCPay / Alby / Strike donation page when you go live.
Washers, capsules, engravers, packaging, postage, and the infrastructure to run this site. We do not sell address data. Donations are gifts to an educational project — not an investment.