Mate nejaky bitcoiny/kryptomeny?

[Orbital]

Hele kupovat btc v bankomatu, kde jako calujes za fakt velky feecka za komisi a smysl to ma jen kdyz chces fakt superanonymni transakci a pak resit feecka za odeslani, to moc smyslu nedava. Ty druhy feecka co te zajimaji budou o rad(y) mensi nez ty prvni, kterych sis nevsiml.

Poplatek platis vzdycky. Private key nevim jestli jde nebo nejde zobrazit, tipuju ze u centralizovany online penezenky to mozna nepujde, koneckoncu neni to tvuj bitcoin, ale bitcoin u blockchain.info a to ti vystavilo IOU.

Vyse poplatku se meni v zavislosti an tom, kolik se zrovna posila transakci a za jakou cenu. Tj jak je sit vytizena zde: https://jochen-hoenicke.de/queue/#3m
Odhad feecek a casu zprocesovani zde https://bitcoinfees.21.co/

Predstav si to jako kdyz se aerolinie snazi naplnit kapacitu letadla. Kdyz lita malo lidi, jsou letenky levny, kdyz hodne tak drahy. S feeckama je to stejne.<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[sstealth]

ale asi lepšie je to si poslať na novú adresu za 6 centov , 4 satoshis/byte , 1440 minút kvoli private key použitému v blockchaine.info<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[sstealth]

ide to https://www.youtube.com/watch?v=fcXePXbrI4U

https://www.google.sk/search?q=block...hrome&ie=UTF-8

potom založiť electrum s tým private keyom<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[zubejda88]

papier je stopercentne istejsi. vsetko ostatne je viac vulnerable. 24 slov si len tak nezapamatas. Ale samozrejme zalezi od okolnosti v ktorych clovek zije... (napr. s kokotmi v podnajme)<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[Orbital]

Tak jednodussi nez si pamatovat seed je pamatovat si silny heslo k electru a mit ho ve vic kopiich. Seed jako takovej nekde pohozenej je nebezpecna vec, navic je to vec podlyhajici zkaze. Chce to i pro seed jiste pridat nejaky ten layer.

Obecne se myslim osvedcuje hot-cold wallet system, kde hot wallet neni tak dobre zabezpecena a clovek se k heslu dostane lehko, napriklad ze ma ten seed nekde treba pohozenej na dve casti doma. U cold walletu uz to chce premyslet vice a pocitat s tim, ze ho clovek musi byt schopen dat dohormady, ale to usili i pro nej bude vetsi.

Nejvic hacku je z hacklych compu, takze je dobry si dedikovat pocitac JEN na bitcoin. Ne jen na kryptomeny, ne na tradovani, ale jen na bitcoin wallet.<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[sstealth]

sem tam použi aj google

https://www.reddit.com/r/Bitcoin/com...master_public/

dá sa zapamatať 1,2 slovo a zvyšne napísať
alebo prehodiť posledné s predposledným / prvé s posledným
alebo dať falošné slovo namiesto správneho (ako da vinci robil úmyselne chyby vo svojom denniku)

ja držím na fotke v starom mobile, dnešný so snímačom odtlačkov, šifrovaním na PIN s vypnutou wifi a bez sim by bol lepší

pri papiere by mi najviac vadilo keby sa stratil/zapotrošil<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[Djoker]

diky Orbe<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[Orbital]

Ten zasifrovany soubor je zcela ok, ale pak to znamena mit cistej comp nebo zarizeni na to. Pac ty viry jsou delany ze jdou primo po seedech/private keys. Ono tohle reseni ma taky drawbacks, protoe cisty comp se stava necistym prave vlozenim jakekoliv flashky.

Ja jsem uvazoval na seed koupit takovou tu starou memorybanku z 80.-90. let,a le tam je otazka jak dlouho to vydrzi. Taky jsem vyhrabal pri stehovani stary ZX spectrum, ale i tam ty kazety nevydrzely mnoho.

Vypalit na keramicke cd je ok, ale zase..z ceho.<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[Re4DeR]

pomoci master public key muzes generovat adresy bez toho aniz byz nich slo odeslat btc - watch only adresses.

pouziva se to treba tak ze v cold storage (wallet bez pristupu k netu) si vygenerujes mpk který pak naimportujes do normalni online wallet, která bude v podstate jen read only (nemá private keys). díky tomu muzes sledovat a prijmat platby online bez toho aniz by si ohrozoval btc.

mpk je vec, která funguje v electrum, jeste k multisig penezenkam se to snad pouziva. Jeste jine penezenky maji neco podobneho.

btc tusim chtelo/ implementorvalo neco podobneho primo jako technologii, ale nevim jestli je to sameho, v jakem je to stavu atd. jmenuje se to Stealth Address. tam uz jsem se studiem skoncil.<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[Re4DeR]

to jo ale pokud to budes sifrovat v zavirovanym kompu tak pred tim nez zasifrujes maj seed pac jim ho zadas krasne

nemusis.<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[Orbital]

Pokud se clovek vyvaruje takovych chyb , tak by to melo byt v pohode.

Problem kryptomen je, ze vyvarovat se "takovych" chyb uplne nejde, protoze je nelze vsechny v uplnnosti obsahnout. Na mnoho z nich se prijde teprv v budoucnu, jako ted ten hack hw walletu nebo az budou kvantovy pocitace. Tech der je v kazdym systemu strasne moc, kdo nedela v sitich a compech, tak to nevi a slepe veri a dobre dela, protoze jinak by spat nemoh.

Ale blockchain jde jeste dal, protoze tam neni ta reversibilita operaci, kdyz se neco posere, coz byva casto ta zasadni zachranna brzda. Ta tu proste chybi, takze jak rekl AA, nejvetsi revoluce blockchainu je to, co nam dela s hlavou. Ten level pozornosti, ktery je vyzadovan, je extremni.<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[Orbital]

Pokud se clovek vyvaruje takovych chyb , tak by to melo byt v pohode.

Problem kryptomen je, ze vyvarovat se "takovych" chyb uplne nejde, protoze je nelze vsechny v uplnnosti obsahnout. Na mnoho z nich se prijde teprv v budoucnu, jako ted ten hack hw walletu nebo az budou kvantovy pocitace. Tech der je v kazdym systemu strasne moc, kdo nedela v sitich a compech, tak to nevi a slepe veri a dobre dela, protoze jinak by spat nemoh.

Ale blockchain jde jeste dal, protoze tam neni ta reversibilita operaci, kdyz se neco posere, coz byva casto ta zasadni zachranna brzda. Ta tu proste chybi, takze jak rekl AA, nejvetsi revoluce blockchainu je to, co nam dela s hlavou. Ten level pozornosti, ktery je vyzadovan, je extremni.<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[Djoker]

to jo ale pokud to budes sifrovat v zavirovanym kompu tak pred tim nez zasifrujes maj seed pac jim ho zadas krasne nemusis.

No to me nenapadlo. Jinak jsem ted cetl , ze se z toho MPK da taky obnovit cela penezenka , ale to jsem netestoval. Testoval jsem obnovu ze seedu a z private keys ( v Electrum) a skutecne to funguje.

...kdo nedela v sitich a compech, tak to nevi a slepe veri a dobre dela, protoze jinak by spat nemoh.

No prave , to je asi nejvetsi problem to zabezpeceni. Jinak tomu BTC projektu stoprocentne verim,
vidim to jako velice perspektivni. Kdyz uz jsem teda v tomhle vlaknu , jeste se zeptam , kolik procent banku v BTC vidite jako idealni? Predevsim s ohledem na tu bezpecnost a moznosti , ze o ty BTC prijdu. Ja to zatim testuju , ale postupne to procento banku v BTC chci navysit.<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[Re4DeR]

Posli mi zdroj o tom mpk plz.<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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[Djoker]

Posli mi zdroj o tom mpk plz.

zkusim to najit...<div style="font-size: xx-small;color: #0000ff;display: inline-block;text-align: center;width: 100%;">
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