{"type":"rich","version":"1.0","author_name":"npub1r3san9v5njl6798hvauyu9ntm6r9c7u8s0t65wls58gpfdcvqp5sa48d0u","author_url":"https://nostr.ae/npub1r3san9v5njl6798hvauyu9ntm6r9c7u8s0t65wls58gpfdcvqp5sa48d0u","provider_name":"njump","provider_url":"https://nostr.ae","html":"📅 Original date posted:2015-06-19\n📝 Original message:What retail needs is escrowed microchannel hubs (what lightning provides,\nfor example), which enable untrusted instant payments. Not reliance on\nsingle-signer zeroconf transactions that can never be made safe.\n\nOn Fri, Jun 19, 2015 at 5:47 PM, Andreas Petersson \u003candreas at petersson.at\u003e\nwrote:\n\n\u003e I have some experience here. If you are seriously suggesting these\n\u003e measures, you might as well kill retail transactions altogether.\n\u003e\n\u003e In practice, if a retail place starts to accept bitcoin they have a\n\u003e similar situation as with cash, only that the fraud potential is much\n\u003e lower. (e.g. 100-dollar bill for a sandwich might turn out fake later)\n\u003e and the fraud frequency is also much lower.\n\u003e\n\u003e 0-conf concerns were never a problem in practice. except for 2-way atms\n\u003e i have never heard of a problem that was caused by double spends.\n\u003e while adding these measures is generally positive, requiring them means\n\u003e excluding 99.9% of the potential users. so you might as well not do it.\n\u003e\n\u003e RBF as implemented by F2Pool just flat out lowers Bitcoins utility\n\u003e value. So it's a bad thing.\n\u003e\n\u003e for any online or automated system, waiting for a handful of\n\u003e confirmations was always recommended practice.\n\u003e\n\u003e Am 19.06.2015 um 22:39 schrieb Matt Whitlock:\n\u003e \u003e Retail POS merchants probably should not be accepting vanilla Bitcoin\n\u003e \u003e payments, as Bitcoin alone does not (and cannot) guarantee the\n\u003e \u003e irreversibility of a transaction until it has been buried several\n\u003e \u003e blocks deep in the chain. Retail merchants should be requiring a\n\u003e \u003e co-signature from a mutually trusted co-signer that vows never to sign\n\u003e \u003e a double-spend.\n\u003e\n\u003e\n\u003e\n\u003e ------------------------------------------------------------------------------\n\u003e\n\u003e _______________________________________________\n\u003e Bitcoin-development mailing list\n\u003e Bitcoin-development at lists.sourceforge.net\n\u003e https://lists.sourceforge.net/lists/listinfo/bitcoin-development\n\u003e\n\u003e\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20150619/c2719e0f/attachment.html\u003e"}