Post
Topic
Board Development & Technical Discussion
Re: Offline Crypto Transactions – No Internet, Fully Blockchain-Valid
by
aristotelsato
on 04/08/2025, 11:10:23 UTC
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Thanks for your question — and it’s a good one.

No, I’m not using QR codes or camera scanning between devices.

What I’m building is not a cold-wallet model or standard airgapped QR flow. It’s something more direct and unconventional, where data is exchanged between devices without traditional I/O or connectivity (no QR, no Bluetooth, no NFC, no Wi-Fi).

The fact that the transaction is valid is just a byproduct — the real innovation is in how the TX gets from device A to B. and it gets Globally! not like 10 meters away!

No offense, but from my perspective it's either have limited practicality, fictional or revolutionary.

I understand your point — but I’d argue that “offline TX” usually means just signing offline and broadcasting later. What I’ve done includes transmission too — without any external connection.

That’s what I believe is the novelty here.

My point is those points aren't exactly "Key features" or outstanding compared with today's offline signing.

because i had done tests now guys you can check this my first offline transaction with proof i  send 3000 satoshis

https://mempool.space/testnet/tx/501789e689cea0c90e1c18954811ad355c93b65032f107c8eeba6fed61ca50a2
I completed a full crypto transaction — from device to chain — with no connection, no data, no internet, and no infrastructure. It’s real. And it works.

✅ Transaction broadcasted successfully!
📨 TXID: {'txid': '501789e689cea0c90e1c18954811ad355c93b65032f107c8eeba6fed61ca50a2', 'response_dict': '501789e689cea0c90e1c18954811ad355c93b65032f107c8eeba6fed61ca50a2'}