asteroza + bitcoin   55

Blockchain Graveyard
A list of all massive security breaches or thefts involving blockchains.
bitcoin  security  exchange  attack  review  analysis  cryptocurrency  history  reference  information 
december 2017 by asteroza
bitFlyer | Bitcoin Marketplace
Japanese bitcoin exchange, may be world's largest, after the failure of Mt. Gox...
japan  bitcoin  exchange 
november 2017 by asteroza
With Fidesmo, your smart device can be even smarter
Yubikey variant with a server provisionable smartcard applet ecosystem.
YubiKey  Fidesmo  smartcard  NFC  javacard  applet  appstore  platform  service  FIDO  U2F  GPG  PGP  bitcoin  wallet  offline  OTP 
november 2017 by asteroza
fidesmo - FIDESMO CARD with Dual Interface
NFC smartcard, you can buy/load additional smartcard applets like GPG and bitcoin wallets
NFC  smartcard  security  hardware  electronics  devices  GPG  U2F  bitcoin  PGP  applet  OTP 
november 2017 by asteroza
Home - Hashgraph
Some sort of new distributed ledger with higher transaction throughput compared to bitcoin, doesn't seem to use either Proof of Work or Proof of Stake, and supports byzantine faults. But it seems it trades faster TPS for bad actor security, since this is vulnerable to a 1/3 bad actor ratio, compared to bitcoin's majority bad actor ratio. Also PATENTED so requires a license...
encryption  cryptography  cryptocurrency  bitcoin  blockchain  distributed  ledger  hashgraph  consensus  software 
november 2017 by asteroza
keraf/NoCoin: No coin is a tiny browser extension aiming to block coin miners such as Coinhive.
Anti-miner browser addon to block cryptocurrency miners from operating in a browser tab. Sadly necessary these days...
chrome  browser  addon  plugin  extension  antiminer  security  cryptocurrency  javascript  tab  miner  cryptominer  bitcoin  monero  coinhive 
september 2017 by asteroza
Purse | Discount Shopping and Bitcoin Wallet
system that exchanges mechanical turk amazon credits for bitcoin, which might be handy to launder bitcoin...
amazon  credit  bitcoin  exchange  money  laundering  Delicious 
march 2017 by asteroza
Paying for power in bitcoin (which was manufactured from power...) As they say, to make a small fortune, start with a large one...
japan  bitcoin  utility  bill  payment  service  Delicious 
september 2016 by asteroza
TransActive Grid | Secure, transactional control of utility systems
Using blockchain ledgers to facilitate energy credit microtransactions between local neighborhood power producers and consumers. Not entirely crazy, in the sense that you are offloading net metering payment ops to a consumer distributed system. Doesn't necessarily solve the problem of power distribution control information sharing in a net metering environment though.
local  energy  microgrid  credit  transaction  bitcoin  blockchain  neighborhood  electricity  green  Delicious 
july 2016 by asteroza
Blockchain Thunder
New accelerated transaction network for bitcoin/blockchain systems, rivaling credit card systems.
bitcoin  thunder  wallet  lightning  network  blockchain  accelerated  transaction  software  opensource  Delicious 
may 2016 by asteroza
Introducing the Shift Card
Interesting, works in 24/50 US states.
bitcoin  VISA  debit  card  currency  money  Delicious 
november 2015 by asteroza
Interesting, tries to use obfuscated GPSfor local marketplace listing lookups, but the vendor needs to host their own store-node, uses testnet, and has a number of other issues.
dropzone  distributed  P2P  marketplace  layer  bitcoin  protocol  darkweb  darknet  market  ruby  software  Delicious 
september 2015 by asteroza
Anti-Money Laundering - Elliptic
Interesting interactive visualization of the top 250 wallets on the blockchain.
bitcoin  blockchain  wallet  information  visualization  infoviz  Delicious 
june 2015 by asteroza
Bitcoinstore - Thank you!
Formerly a bitcoin acceptance front for Ingram Micro, the idea was to force e-retailer's hand to accept bitcoin. Mission Accomplished.
bitcoin  ecommerce  marketplace  reference  consumer  electronics  Delicious 
june 2015 by asteroza
Proof of Position
Interesting, but the risk of GPS spoofing/false location makes this still a poor security solution, in terms of a record of location.
timestamp  bitcoin  blockchain  stamp  message  positionstamp  archive  record  proof  security  location  verification  CyberLocator  Delicious 
july 2014 by asteroza
Bitcoin Hashrate Distribution -
For those freaking out over GHash.IO hitting 51%, here's a handy monitor of big mining pool percentages.
bitcoin  statistics  mining  pool  share  monitoring  graph  chart  Delicious 
june 2014 by asteroza
Zerocash | Zerocash
So, people are trying to return the anonymity of cash back into bitcoin, which by its nature is a very public currency protocol. Though it sounds like they are doing this via zerocoin based protocols, so effectively there will be value entering and exiting the bitcoin blockchain at some point, but the intermediate transactions in zerocoin/zerocash will become private. Maybe.
bitcoin  privacy  anonymity  protocol  zerocash  zerocoin  cryptocurrency  software  research  Delicious 
may 2014 by asteroza
twister | P2P microblogging platform
Uses a bitcoin like blockchain for user ID registration, otherwise seems to use DHT and torrent methods for message distribution.
twister  private  decentralized  P2P  microblogging  platform  opensource  software  DHT  bitcoin  security  anonymity  Delicious 
january 2014 by asteroza
Bitmessage Wiki
P2P using bitcoin architectural parts. There's a channel like feature, and an email gateway service as well.
bitmessage  software  encryption  secure  opensource  messaging  windows  security  chat  decentralized  OSX  p2p  IM  email  anonymous  cryptography  social  bitcoin  Delicious 
august 2013 by asteroza
BitPay : The World Leader in Bitcoin Business Solutions
Bitcoin payment services provider. Basically, they convert Bitcoins to dollars.
bitcoin  payment  service  processor  PSP  currency  finance  Delicious 
january 2013 by asteroza
Home page - Welcome to Memorydealers!
Online ram memory and networking gear dealer that accepts bitcoin BTC. Apparently they use bitcoin to pay their upstream suppliers/vendors in china with it, because it has fast transaction times and keeps transaction costs low (due to lack of middlemen?)
network  networking  hardware  payment  cryptocurrency  BTC  bitcoin  dealer  shop  online  memory  RAM  Delicious 
september 2012 by asteroza
[1207.7139] Traveling the Silk Road: A measurement analysis of a large anonymous online marketplace
Interesting research into the financial success of Silk Road, an online marketplace for illegal drugs using the BitCoin cryptocurrency. The high satisfaction rate may be an early adopter effect, where most users are rational actors who don't cheat much. The need for Tor and BitCoin does tend to put users into a higher intelligence rank than their standard junkie counterparts.
SilkRoad  illegal  drug  marketplace  Tor  BitCoin  financial  business  success  economics  research  Delicious 
august 2012 by asteroza

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