So first you say I can't physically hold bitcoin. Now you say I can't pay people with it? You're getting funny.
Just look up offline transactions. I mean people rarely even use cash now for payment but...whatever.
I'll get you started as I'm done teaching you. Remember too, you can't even tell if the cash you're being given is even real. You might get to the bank and they tell you it's useless. So sorry.
Offline Bitcoin hand-off methods -------------------------------- - OPENDIME – USB stick; break seal to reveal private key; hand it over like cash. - SATSCARD – NFC/QR credit-card with 10 one-time “slots”; pass the card itself. - Air-gapped PSBT – move unsigned↔signed TX via SD/QR; broadcast whenever online. - Physical bearer coins / tamper-sealed paper wallet – sealed key changes hands. - TxTenna / goTenna mesh – phone signs TX offline, LoRa mesh relays it later. - Blockstream Satellite + ham/SMS – node synced by satellite; TX sent by radio/SMS. - Lightning async payment – LSP holds HTLC; receiver can come online hours later. - LNURL-withdraw gift QR – preload QR; first scanner online pulls the sats. - Fedimint / Cashu tokens – QR blobs trade offline like poker chips; settle later.
How they beat cash -------------------- 1. Cryptographic proof of balance & authenticity—no counterfeit risk. 2. Impossible to forge: invalid signatures are rejected by every node. 3. Split to exact satoshis; add timelocks or spending rules if desired. 4. Once broadcast, funds settle worldwide—no hauling banknotes over borders.
rzr97 0 points 1 day ago
So first you say I can't physically hold bitcoin. Now you say I can't pay people with it? You're getting funny.
Just look up offline transactions. I mean people rarely even use cash now for payment but...whatever.
I'll get you started as I'm done teaching you. Remember too, you can't even tell if the cash you're being given is even real. You might get to the bank and they tell you it's useless. So sorry.
Offline Bitcoin hand-off methods
--------------------------------
- OPENDIME – USB stick; break seal to reveal private key; hand it over like cash.
- SATSCARD – NFC/QR credit-card with 10 one-time “slots”; pass the card itself.
- Air-gapped PSBT – move unsigned↔signed TX via SD/QR; broadcast whenever online.
- Physical bearer coins / tamper-sealed paper wallet – sealed key changes hands.
- TxTenna / goTenna mesh – phone signs TX offline, LoRa mesh relays it later.
- Blockstream Satellite + ham/SMS – node synced by satellite; TX sent by radio/SMS.
- Lightning async payment – LSP holds HTLC; receiver can come online hours later.
- LNURL-withdraw gift QR – preload QR; first scanner online pulls the sats.
- Fedimint / Cashu tokens – QR blobs trade offline like poker chips; settle later.
How they beat cash
--------------------
1. Cryptographic proof of balance & authenticity—no counterfeit risk.
2. Impossible to forge: invalid signatures are rejected by every node.
3. Split to exact satoshis; add timelocks or spending rules if desired.
4. Once broadcast, funds settle worldwide—no hauling banknotes over borders.