{"type":"rich","version":"1.0","author_name":"npub17ty4mumkv43w8wtt0xsz2jypck0gvw0j8xrcg6tpea25z2nh7meqf4qgyd","author_url":"https://nostr.ae/npub17ty4mumkv43w8wtt0xsz2jypck0gvw0j8xrcg6tpea25z2nh7meqf4qgyd","provider_name":"njump","provider_url":"https://nostr.ae","html":"📅 Original date posted:2015-03-11\n📝 Original message:Sigh. The wallet words system is turning into kind of a mess.\n\nI thought the word list is in fact not a fixed part of the spec, because\nthe entropy is a hash of the words. But perhaps I'm misunderstanding\nsomething.\n\nThe main problem regular SPV wallets have with BIP39 is that there is no\nbirth time included in the data. Therefore we must ask users to write down\na timestamp as well, so we know where to start rescanning the chain. It\nsounds like the Electrum version doesn't fix this, so now we have at least\nFIVE incompatible results from a 12 word list:\n\n   - Electrum v2 with a version number but no date\n   - myTREZOR with no version and no date and BIP44 key derivation. Some\n   seeds I believe are now being generated with 24 words instead of 12.\n   - MultiBit HD with no version and a date in a custom form that creates\n   non-date-like codes you are expected to write down. I think BIP32 and BIP44\n   are both supported (sorta).\n   - GreenAddress with no version, no date and BIP32\n   - Other bitcoinj based wallets, with no version and a date written down\n   in normal human form, BIP32 only.\n\nI really hope we can recover from this somehow because otherwise all\nwallets will have to provide the user with a complicated matrix of\npossibilities and software combinations, and in practice many won't bother\nso these word combinations will actually end up being wallet specific for\nno particularly good reason, just very minor details like the presence or\nabsence of single fields.\n\nIt feels like we somehow fell flat on our faces just before the finishing\nline. This is deeply unfortunate. Compatibility and UX consistency is\nimportant!\n\nCurrently, I don't have any bright ideas for how to get everyone back onto\nthe same page with a fully compatible system that is acceptable to all. If\nanyone else has suggestions, I'm all ears.\n-------------- next part --------------\nAn HTML attachment was scrubbed...\nURL: \u003chttp://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20150311/6feebf89/attachment.html\u003e"}