Nostr Web Client

📍In areas without internet or banking access, we use solutions that meet local needs, like those built on the Cashu protocol.

💡With this tech, offline transactions are possible, like this child buying a donut with SATs at an onboarded shop. 🍩⚡️nostr:nprofile1qqs9pk20ctv9srrg9vr354p03v0rrgsqkpggh2u45va77zz4mu5p6ccpzemhxue69uhk2er9dchxummnw3ezumrpdejz7qgkwaehxw309a5xjum59ehx7um5wghxcctwvshsfmrzrk nostr:nprofile1qqsyh34ucvrjxn79ets5t9ll4k244p54nx6tdmw596tzd4nj6aqsylqppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7yuv9zj

#Bitcoin_for_unbanked

https://blossom.primal.net/ccb20c9477b9a2744a8f11ad2de17d3f4b66b4068e10d479a131246a915f0f61.mp4

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Discussion

비트광부 6mo ago 💬 1

우리나라도 만들어줘. 내놔🫴

Cashu 같은 프로토콜 말이야

nostr:nevent1qqsqh7vetrq708af6fx0e2n7x0dw727e6qy60qw0hgprh4ldz2cw60gpzemhxue69uhhyetvv9ujuurjd9kkzmpwdejhgc4c6jn

MoneRogue 6mo ago

If you want to get really technical (for all the Bitcoin aficionados out there), you could go to an area with internet, print a bunch of paper wallets in an air-gapped environment, send an exact amount of sats to each paper wallet, and then just use them like Federal Reserve Notes.

5atoshiNakamoto 6mo ago

Ifitambua...is this Zambia?

hoppe2 6mo ago

How does eCash solve the double-spending problem in an offline environment? I'm not comfortable just trusting the payer.

Charlie 6mo ago

It doesn’t, you need to trust the person sending it to you

gandlaf21 6mo ago

there are some ways around it, but at certain point a connection is required for at least one party

gandlaf21 6mo ago

nostr:naddr1qq25cjpsdfeyj3z9f3txsejnfezk6mjpwagyyq3qcj6ndx5akfazux7f0vjl4fyx9k0ulf682p437fe03a9ndwqjm0tqxpqqqp65w5zjwnt

josh 6mo ago

You redeem with the mint (internet) as soon as you’re able as the receiver.

calle 6mo ago

if you're the merchant and have Internet, you don't need to trust anyone. the payer can remain offline.

generally, one party having internet is enough to prevent double spending

ODELL 6mo ago 💬 2

also this is a surprisingly common situation throughout the world

merchant has internet, customer does not

calle 6mo ago

yes, merchant usually doesn't move, customer does!

gandlaf21 6mo ago

what about the traveling salesman 👳

rfc 6mo ago

His customers are hopefully in there own homes and offices 😂

There isn't a way for an offline sender to lock ecash to an offline receivers public key, right? (assuming sender has the exact tokens denominations needed)

gandlaf21 6mo ago

one of them has to be online

gandlaf21 6mo ago

the opposite could also exist, tho probably less common:

vending machine (offline) - customer mobile (online)

in that case, customer/sender can create offline verifiable tokens

ynniv 6mo ago

This was a specific design goal for my Bitcoin Deposits proposal. Always-online vault pays an invoice based on onion message for the invoice and max fee signed by the deposit private key. Potentially a single NFC tap by an offline customer

rfc 6mo ago

This is going to take off unbelievably in Africa, we haven't seen anything yet.