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How to create and use Multi Sig Bitcoin Wallets
 
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This is useful if you want more than one person to be required to 'sign off' or 'authorize' any outgoing Bitcoin wallet transaction. This is also a great security measure for your own personal wallets, as you could store each wallet separately. In this video we are using Electrum so the process would be identical for Litecoin as well. You can subscribe to our youtube channel here, we also have a telegram channel we chat and communicate through: Hodl Hodl Exchange: https://hodlhodl.com Hodl Hodl Exchange TESTNET: https://testnet.hodlhodl.com/ Follow us on Twitter: https://twitter.com/hodlhodl Join our Telegram chat: https://t.me/HodlHodl Read our Blog: https://medium.com/@hodlhodl Email: [email protected]
Views: 2622 Hodl Hodl exchange
What is Multisig Technology?
 
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How do you keep your digital currency safe? Jerry Brito, Executive Director of the Coin Center, explains how multisignature technology provides increased security for digital currencies such as Bitcoin. As always, the Federalist Society takes no position on particular legal or public policy issues; all expressions of opinion are those of the speaker. Follow Jerry Brito on Twitter: @jerrybrito https://twitter.com/jerrybrito Related links: What is Multi-Sig, and What Can It Do? https://coincenter.org/entry/what-is-multi-sig-and-what-can-it-do The best multisignature wallets for 2016 https://bravenewcoin.com/news/the-best-multisignature-wallets-for-2016/ The Wretched, Endless Cycle of Bitcoin Hacks https://www.bloomberg.com/news/articles/2016-08-17/the-wretched-endless-cycle-of-bitcoin-hacks
Views: 48343 The Federalist Society
How To Create a Multisig Address and Spend From It
 
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CheatSheet: http://pastebin.com/nw2Tqg3U How to create a new multisig bitcoin address yourself with bitcoin core client and spend from it using raw transactions. BTC: 1NPrfWgJfkANmd1jt88A141PjhiarT8d9U Follow me on twitter: https://twitter.com/coinableS How to create a multisig wallet? How do I make a multisig address? Bitcoin Multisig
Views: 12183 m1xolyd1an
Creating and Using Multisignature Wallets (Litecoin/Bitcoin)
 
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How to create and send funds from a multi signature electrum wallet 🎵 Music: Rick Wade - Meditation (Matsa Remix)
How To Create a Secure Multisignature Wallet and Send Multisignature Transactions
 
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Whether you want to add security or accountability to your bitcoin transactions or share a bitcoin wallet across multiple device, the BitPay multisignature wallet is a great option. Watch to learn how to get started.
Views: 5450 BitPay
Blockchain - Use cases MultiSignature Wallets a brief intro
 
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How MultiSignature (multisig) wallets can benefit you.. If you like the content, you can support the channel by donating. Thank you! 😃 Coin base $10 https://www.coinbase.com/join/55db2ccb7e48445c590001e6 NEM Donation Address NCVC23-Y7YJCE-2BI4TI-6QV7P2-EISAL2-WDKWVV-HZIE ETH Donation Address: 0xd2e18C02487CE432c7F5b58C4E684970AD61B964 BTC Donation Address: 1GHpMkpxxhBXutCLvyvnt3AMSwcTK9WyVp
Views: 2225 ikeo net1
How To Use Bitcoin Multi-Signature with CoPay
 
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Today I check out how to use a multi signature wallet via the CoPay platform. Tip Address: 1CwYp77iDHy2XFoV1LLEeJA3t8ynF5ZzAd Bitpay Wallet Tutorial: https://www.youtube.com/watch?v=OCGINVprEC4 Music: https://www.youtube.com/watch?v=BTWgIsCyxg4
Views: 8599 BTC Sessions
GreenAddress - A safer multisig wallet for Your Bitcoins
 
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GreenAddress.com Commercial Ep. 01 "A safer wallet for Your Bitcoins!"
Views: 23209 GreenAddress
Bitcoin Multi-Sig wallet creation
 
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This shows how easy it is to create Multi-sig wallet with my HD-BIP32 business wallets system. Currently I am developing a HD-BIP32 Business Bitcoin wallet. Here is a video Demo -YouTube http://youtu.be/gOPdFPHNByk , yes I know it's ugly but I am going for functionality first then get some help making it pretty, a I am at that point now. My plan is to use Bitcoin 2.0 technology and multi-sig so my wallet can be used not just with Bitcoin,Litecoin or Dogecoin coins but as a smart business wallet (smart contracts included) with any asset class like Bond, gold, Silver or stocks. Applying Multi-Sig and Smart Contracts to my wallet will give any business the management and accounting tools to use Bitcoins and up to 10's of thousands of sub-wallets and Multi-Sig smart business wallets.  I need help. I have designed this alone and I need to have input and a team technical and business to map out the flow and business process, to build the financial business tool of the future. As we go into 2015 were Bitcoin will be the normal for any business, I think my HD-BIP32 business  wallet will be become the standard. If you know of anyone who wants to invest and help me I would appreciate it. My sites- http://bitcoinwalletnetwork.com/blog/ http://uscyberlabs.com/blog/ Cheers, rickA
Views: 573 Richard Amores
Trezor Multisig w/ Electrum by Pavol Rusnak - DEMO at Understanding Bitcoin - Day 1
 
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A demonstration of the Trezor Multisig with Electrum will be performed by Pavol Rusnak
Copay - Easy and safe bitcoin wallet. Review and multisignature tutorial.
 
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Copay wallet is easy to use desktop and mobile (both Android and IoS) wallet, that serves basic needs. Send you bitcoin, recive bitcoin, create multisignature bitcoin wallet, send from mutisignature wallet, cosign transaction. You can also use it with bitcoin cash (bch). This video is both tutorial and review of copay. I am showing how to use the basic functions as well as create multisignature wallet paired with the mobile phone. ************************************************************************************************************* Links: https://copay.io/ Social: Steemit: https://steemit.com/@tongokongo Twitter: https://twitter.com/cryptoTonyNEM
Views: 487 Tony's Channel
Coinb.in multisig spending demo in French
 
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Coinb.in multisig spending demo in French
Views: 2910 Pascal Betamon
What is a Multisignature Bitcoin Address?
 
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Join the Cryptoversal world at http://www.cryptoversal.com What is a multisignature Bitcoin address? How does it work in smart contracts? Cryptocurrencies reviews, ICOs, exchanges, gaming sites and payment methods. All things crypto on every level!
Views: 46 Cryptoversal
Protect Your Online Bitcoin Transactions Using a Multisig Escrow Wallet
 
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Protect Your Online Bitcoin Transactions Using a Multisig Escrow Wallet Protect Your Online Bitcoin Transactions Using a Multisig Escrow Wallet Protect Your Online Bitcoin Transactions Using a Multisig Escrow Wallet Subscribe my channel: https://www.youtube.com/channel/UCHinfIHIgskiCH_CaUxYqcg?sub_confirmation=1
Views: 156 Paul E. Washington
Bitcoin HD-Wallet and Multi-Sig 4 business
 
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Presentation and demo of Bitcoin HD-Wallet and Multi-Sig 4 business
Views: 282 Richard Amores
How to Deploy a Multisignature Wallet
 
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Multisignature Wallet: the Basics - https://medium.com/smartz-blog/multisignature-wallet-the-basics-62fd829a85ca Join us! Telegram chat (english): https://t.me/smartz_en Telegram chat (russian): https://t.me/smartz_ru Facebook: https://www.fb.me/SmartzPlatform Twitter: https://twitter.com/SmartzPlatform Medium: https://medium.com/@SmartzPlatform
Views: 179 Smartz
Bitcoin 101 - Multi-Signature Addresses pt1 - Coding This Major Security Improvement
 
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Just like the Wright brothers, on those first flights at Kitty Hawk, didn't concern themselves that much with landing. And improvements like anti-lock brakes and seat belts help protect passengers in cars. Bitcoin is now in that 'second phase' where security is becoming massively important. Fortunately, because the currency is programmable, anything is really possible. Originally introduced into the bitcoin client a few years ago, multisignature addresses massively more secure than regular ones. Their adoption by all wallet manufacturers is coming. But, for you techies and voyeurs, we'll jump inside the ideas of multi-sig and even program the stuff. Hope you enjoy. All the public and private keys are at the bottom of this description James' code can be found here: https://github.com/wobine/blackboard101 there, you'll see the code for part one and two of this video Jeff Garzik's Bitcoin python library is here https://github.com/jgarzik/python-bitcoinrpc remember to replace his connection.py file with ours for multisigs And a little bit about bitcoind is here https://en.bitcoin.it/wiki/Bitcoind but remember that it really is the most bare-bones bitcoin wallet software, but the one which allows the most programming. we love it. A multisig wallet is already in production: Check it out https://www.bitgo.com/ We're still waiting to see how they use multisig to see if it really works for the end user. And finally, here's our lovely multisig address http://live.bitcore.io/address/35Z3xG92YkW5Xo4ngQw6w5b3Ce6MDw94A8 So cool to see it live and in action. Welcome to WBN's Bitcoin 101 Blackboard Series -- a full beginner to expert course in bitcoin. We hope you enjoy. And remember the official WBN launch is coming up : June 1st, 2014. Please like, subscribe, comment or even drop a little jangly in our bitcoin tip jar 1javsf8GNsudLaDue3dXkKzjtGM8NagQe Thanks, WBN Brand New Address Pair: Number 1 Compressed Public Address - 34 chars - 1L2hyXoKmtRffKHhQ8XGyWFVBgZHJckkbx Private Key - 52 chars - L2M1uRgdwgCotoP8prWJYYwz2zwWgsMa9TJwqARG7nFxkpdvBSsm Less compressed Public Key/Address - 66 chars - 020743d44be989540d27b1b4bbbcfd17721c337cb6bc9af20eb8a32520b393532f Brand New Address Pair: Number 2 Compressed Public Address - 34 chars - 13XTNTnApsAc4aEPniAncmnDxWJcY6QcPF Private Key - 52 chars - L1M2ZgjoAtDVu9uemahiZBQPwFA5Tyj4GLd1ECkDryviFrGp6m7k Less compressed Public Key/Address - 66 chars - 02c0120a1dda9e51a938d39ddd9fe0ebc45ea97e1d27a7cbd671d5431416d3dd87 Brand New Address Pair: Number 3 Compressed Public Address - 34 chars - 1DT8Ki2HKzFYUVnv9hg9Pg1EE5G32kmP3Y Private Key - 52 chars - L5PkVBzR4SdQimMsfHnRqRegJZDFJ22sGjSbfp3SsPSnVoB8vRFE Less compressed Public Key/Address - 66 chars - 0213820eb3d5f509d7438c9eeecb4157b2f595105e7cd564b3cdbb9ead3da41eed
Views: 22221 CRI
How to do a Multisignature Bitcoin Transaction
 
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How to use public and private keys to create a multi-signature address and then spend bitcoin from that address.
Views: 10144 Alex Millar
What's a Multisignature Bitcoin Wallet and Why Should You Care?
 
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In this video, I discuss what multisignature wallets and addresses are, and why they are valuable.
Views: 4054 Arianna Simpson
Scaling Bitcoin, MultiSig, Forward Blocks & Schnorr ~ Bitcoin Op Tech #16
 
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The Bitcoin Operations Technology Group (Optech) works to bring the best open source technologies and techniques to Bitcoin-using businesses in order to lower costs and improve customer experiences. https://bitcoinops.org/ This week’s newsletter consists entirely of summaries of several notable talks presented at the Scaling Bitcoin workshop last weekend, since there was very little to report in our usual Action Items, News, and Notable Code Changes sections. We hope to return to our usual format next week. https://bitcoinops.org/en/newsletters/2018/10/09/ Donate Bitcoin to Max: 3DqEnU6dW6bZesrVdThrrQjQKgN7dpY5vv https://tallyco.in/HillebrandMax Support the Show: https://www.patreon.com/wcn Read Rothbard, Use Bitcoin Show with Max Hillebrand: https://www.youtube.com/playlist?list... Open Source Everything, with Max Hillebrand: https://www.youtube.com/playlist?list... Listen to WCN Audio Podcasts: https://itunes.apple.com/us/podcast/w... Check out the brand new http://WorldCryptoNetwork.com/ Find out more about Max https://towardsliberty.com Support the Open Source Paper Anarchy in Money https://towardsliberty.com/anarchy Follow WCN on Twitter: https://twitter.com/WorldCryptoNet Follow Max on Twitter: https://twitter.com/HillebrandMax Follow BitcoinOpTech on Twitter: https://twitter.com/BitcoinOptech
BitPay Announces Copay a MultiSignature Bitcoin Wallet
 
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Облачный майнинг - https://www.cryptomining.io/?rid=NDU0MTYz Bitcoin - криптовалюта, признанная мировым банком как реальная децентрализованная валюта! На этом канале ты найдешь множество полезной информации о то, что такое биткоин (bitcoin), как его добывают (майнинг криптовалют), как зарабатывать на бирже криптовалют, как сделать свою майнинг ферму и заниматься заработком на майнинге видеокарт и/или майнинге процессоров.
Bitcoin Q&A: Multi-signature and distributed storage
 
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What happens when wallets (personal or at an exchange) are hacked? What is "sweeping" with regards to private keys? After a hack, is it possible to track the stolen bitcoin and identify the hacker? How do you keep bitcoin safe in a group / corporate environment? Is it possible to create a multi-signature setup with Trezor and Electrum? Could passphrases be brute-forced? What is happening with browser extension deprecation? You will have to evaluate which tools are the best based on the amount of cryptocurrency you own, your circumstances, and your threat model. "'I Forgot My PIN': An Epic Tale of Losing $30,000 in Bitcoin" - https://www.wired.com/story/i-forgot-my-pin-an-epic-tale-of-losing-dollar30000-in-bitcoin/ These questions are from the MOOC 9.3 and 9.4 sessions, as well as the (rescheduled) April Patreon Q&A session, which took place on March 2nd, March 9th, and May 5th 2018 respectively. Andreas is a teaching fellow with the University of Nicosia. The first course in their Master of Science in Digital Currency degree, DFIN-511: Introduction to Digital Currencies, is offered for free as an open enrollment MOOC course to anyone interested in learning about the fundamental principles. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop RELATED: Software distribution security - https://youtu.be/_V0vqy046YM Protocol development security - https://youtu.be/4fsL5XWsTJ4 Geopolitics and state-sponsored attacks - https://youtu.be/htxPRTJLK-k How to get people to care about security - https://youtu.be/Ji1lS9NMz1E Exchanges, identity, and surveillance - https://youtu.be/TVFy8xXfxAA What is the roadmap? - https://youtu.be/5Eoj_sKyC90 Why developers are leaving banks - https://youtu.be/GqOZ4IAQ-xQ Honest nodes and consensus - https://youtu.be/KAhY2ymI-tg Why running a node is important - https://youtu.be/oX0Yrv-6jVs Lessons from the hard fork - https://youtu.be/hnAWAVNnGCw Cryptographic primitives - https://youtu.be/RIckQ6RBt5E Nonces, mining, and quantum computing - https://youtu.be/d4xXJh677J0 Public keys vs. addresses - https://youtu.be/8es3qQWkEiU Re-using addresses - https://youtu.be/4A3urPFkx8g Using paper wallets - https://youtu.be/cKehFazo8Pw Wallet design and mass adoption - https://youtu.be/WbZX6BDZJHc Secure, tiered storage system - https://youtu.be/uYIVuZgN95M The Courage to Innovate Without Permission - https://youtu.be/ywq6NBETUJ8 What is Consensus: Rules Without Rulers - https://youtu.be/2tqo7PX5Pyc Decentralized Truth - https://youtu.be/XCVaabu3J04 Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin. Follow on Twitter: @aantonop https://twitter.com/aantonop Website: https://antonopoulos.com/ He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters. THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8 [NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8 MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042 [NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388 Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/ Subscribe to the channel to learn more about Bitcoin & open blockchains! Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
Views: 6612 aantonop
Green Address Bitcoin Wallet - Segwit, RBF, 2FA, Multisig and More
 
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Today I take a look at a more advanced option for mobile wallets: Green Address. In includes things like Segwit addresses, RBF (replace by fee), 2FA (2 factor authentication) and multi-signature. https://greenaddress.it/en/ SUPPORT THE SHOW… and get an awesome hardware wallet at the same time!!! Buy a Ledger: https://www.ledgerwallet.com/r/faca Buy a Trezor: https://shop.trezor.io?a=tkt776hveg2b For other inquiries and to contact me directly, please visit: https://21.co/benperrin117/ Be sure to also follow me on Steemit: https://steemit.com/@benperrin117 TIPS: BITCOIN 1E74VZ8XQDKjEdovgH9tNWcynX1Nc6NTD LITECOIN LSPGEv5qyN7LH9euwouuPbSXUhrvZuSLYP ETHEREUM 0xB16bB3A76208AE22461B99D1048218FAe15E2A45 DASH XceZWrr3nN8jjrHxwxRGDcT461nEnncLxB
Views: 12214 BTC Sessions
Bitcoin Key Management Techniques
 
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Links: How to create a multisig address and spend from it in bitcoin core: https://www.youtube.com/watch?v=YN2Vyu9RupU Intro to Paper Wallets: https://www.youtube.com/watch?v=I1uefzJJ6nM BIP38 Password Protected Paper Wallets: https://www.youtube.com/watch?v=872eSnlKUeg Multisig Addresses: lhttps://www.youtube.com/watch?v=zIbUSaZBJgU Multisig with Coinb.in: https://medium.com/@TheAlexGalaxy/multisig-bitcoin-transactions-with-coinbin-9bf6557a179c
Views: 504 m1xolyd1an
Bitcoin M-of-N Multisig Addresses - Well Tempered Hacker
 
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Standard bitcoin transactions involve payment to an address which requires a signature from one private key to spend. With multi-signature addresses, M of N transactions are possible. In this episode we will create a multi-signature address which requires two of three signatures to spend. This could be useful for securing bitcoin in multiple locations reducing the "all or nothing" risk of loosing a private key. One example use of this is in securing some amount of bitcoin offline. You might first generate three private keys and from them generate a 2 of 3 multisig address. At this point, the address is worthless. Then you might print out those private keys and the redeem script onto three separate pieces of paper and destroy any digital copy. Next you might send two of those pieces of paper to two different friends of yours and keep the third in a safe place yourself. Remember, there is no value on the multisig address yet so if they get lost in transit or for some reason you believe the papers didn't make it to their destinations safely, you just start over. With our keys safely in three separate locations, you might transfer some bitcoin to the multisig address, loading up your offline wallet. Some time goes by and you might want to gain access to your bitcoin. You create a spend transaction sending the value to some other online wallet. This transaction isn't valid yet because nobody has signed it so it is safe to send via email to one of your friends. They pull out the piece of paper you sent them, type in the private key adding their signature to the transaction. The transaction is still not yet valid so they email it back to you without worry. You then might decide to add your signature to the transaction making it valid. Again, the transaction would be safe to email because any attempt to change the transaction redirecting it to some other address would invalidate the whole thing. After deciding this is still what you wanted, you might decide to transmit this previously completely offline transaction on the network which would spend the funds away from the multisig address. This is very similar to how many online wallet provider's "vault" features work. However, doing this yourself removes the requirement to trust a possibly disinterested third party. As with anything you do yourself, however, there wouldn't be a third party to blame if you messed things up. (I'm not responsible for any bitcoin you loose trying to get this working!) There are risks in either strategy. The software used in this demo is available here: https://github.com/anders94/bitcoin-2-of-3-multisig
Views: 4112 Anders Brownworth
Learning Solidity : Tutorial 24 Multisig Wallet
 
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Homepage of solidity : https://solidity.readthedocs.io/en/develop/ Remix : http://remix.ethereum.org Source code : https://github.com/willitscale/learning-solidity If you would like to donate some Ethereum my wallet is: 0xC8c8c3Fae80e3eD236970e1C93AcF5B91D0993e2 Many thanks!
Views: 3847 Will it Scale
Use a Multisig Wallet to Protect your Bitcoin Transactions
 
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As Bitcoin and other cryptocurrencies gain popularity as a mode of payment transfer, it has become common for the average Bitcoin user to be scammed by an anonymous identity who requests payment for some work is then never heard from again. . The decentralized nature of cryptos certainly has a tradeoff – unlike a credit card or bank transaction that can be reverted, a cryptocurrency transfer once confirmed is permanently recorded on the Blockchain. This is where multi-signature (multisig) wallets come to our rescue.. A multisig wallet is a special bitcoin wallet that requires more than one private key to sign transactions. Most multi-signature setups usually involve three parties – the sender of the payment, the recipient, and an escrow agent. Each of the three parties holds one private key, and to send any transaction, at least two private keys must be used.. Typically, escrow agents are trusted members of the Bitcoin community or registered entities who arbitrate any disputes that may arise. Therefore, the buyer is protected in case the seller turns out to be fraudulent, and the seller, too, is assured of payment even if the buyer refuses to pay.. CREATING A MULTISIG WALLET. There are many ways to create a multisig wallet. In fact, most Bitcoin clients support the multisig protocol. Electrum and Armoury are used by many crypto holders because they have provisions for advanced settings like custom fees etc. which are great for power users. . BitGo is another popular option for those who prefer a web-based client. In my opinion, however, CoPay offers the most streamlined, easy to use interface, that is usable by anyone, even a new Bitcoin user. So for the purposes of this tutorial, I will be using. Step 1: Download CoPay. Head over to the CoPay website and download the appropriate installer for your platform. A great advantage of using CoPay is its support for nearly all desktop and mobile platforms (iOS and Android included).. Step 2: Start by setting up your personal wallet. Open the installed app, and run through the quick setup to create your personal wallet. This will involve typing in an email address for transaction notifications, and noting down a mnemonic phrase that can be used as a backup in case CoPay is accidentally deleted from your computer.. Step 3: Create a Shared Wallet. Multisig wallets are called ‘Shared Wallets’ in CoPay. Once your personal wallet is set up, click on the shared wallet option on the CoPay home screen to create a multisig wallet. You will be presented with a screen where you can configure the wallet with the number of co-payers, the number of signatures required etc. depending on your needs.. Step 4: Share the CoPay invite with others. The last step is to share your multisig wallet with the 2 other parties. Send them the CoPay code displayed or ask them to scan the QR code. That’s it! Your CoPay escrow is set up! Now everytime someone requests a payment, you will receive a notification to confirm the transactio
Views: 123 Cryptocurrency News
Advanced Bitcoin Scripting -- Part 1: Transactions & Multisig
 
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This is the first part of a more technical talk where Andreas explores Bitcoin script, with examples from the 2nd edition of Mastering Bitcoin, focusing on the use of conditional statements, flow control, guard clauses and time locks. The examples will include advanced multi-signature scripts, hash time lock contracts and asymmetric revocable commitments. Then he answers questions about Bitcoin's quirky bugs, where Bitcoin differs from Ethereum at a scripting level, how SegWit works, how consensus rules change, and whether Bitcoin is more than just a currency. Watch Part 2 here: https://youtu.be/pQbeBduVQ4I This talk took place at the San Francisco Bitcoin Developer (@SFBitcoinDev) meetup on April 3rd, 2017: https://www.meetup.com/SF-Bitcoin-Devs/events/238773843/ Review materials on the topics presented: Chpt. 7: https://github.com/bitcoinbook/bitcoinbook/blob/develop/ch07.asciidoc Chpt. 12: https://github.com/bitcoinbook/bitcoinbook/blob/develop/ch12.asciidoc The fundamentals of Bitcoin script 2:17 Bitcoin's operators 5:00 Creating transactions (P2PKH - Pay to Public Key Hash) 6:30 Public Key CheckSigs, security by obfuscating public keys 7:42 Redeeming the script 9:05 The RIPEMD160 hash operation 12:05 OP_EQUALVERIFY, OP_CHECKSIG, & the elliptic curve digital signature algorithm (ECDSA) 14:05 Summary 18:30 Illustrating scripts: Equal, EqualVerify, CheckSig, CheckVerify, CheckMultisig, CheckLockTimeVerify 19:45 Guard clauses 23:02 Script-based timelocks 24:53 Flow control statements, interactive artificial intelligence 26:50 If, Else, EndIf 28:35 Unlocking scripts, what conditional flows do in Bitcoin 33:55 1-of-2 multi-signature script 35:44 1-of-2 multi-signature script with guard clause 38:28 2-of-3 multi-signature script 41:30 2-of-3 multi-signature script with timelock guard clause 43:20 BIP-113, how time is referenced in Bitcoin 44:42 Backup clause & other nuances in multi-signature schemes 46:58 Game theory, complexity from simplicity 52:36 2-of-3 multi-signature script, unlocking 53:45 RELATED: Bitcoin: Where the Laws of Mathematics Prevail - https://youtu.be/HaJ1hvon0E0 The rules of Bitcoin (part 1) - https://youtu.be/VnQu4uylfOs The rules of Bitcoin (part 2) - https://youtu.be/vtIp0GP4w1E Forkology: A Study of Forks for Newbies - https://youtu.be/rpeceXY1QBM Irreversibility and consumer protection - https://youtu.be/R107YWu5XzU Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and well-respected figures in bitcoin. Follow on Twitter: @aantonop https://twitter.com/aantonop Website: https://antonopoulos.com/ He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters. THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8 MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042 [NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388 Subscribe to the channel to learn more about Bitcoin & open blockchains! If you want early-access to talks and a chance to participate in a monthly LIVE Q&A with Andreas, become a patron: https://www.patreon.com/aantonop Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
Views: 32268 aantonop
Creating and Using Multisignature Wallets (Litecoin/Bitcoin)
 
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serious investors!! https://regalwallet.com/?id=6118 Click here How to create and send funds from a multi signature electrum wallet 🎵 Music: Rick Wade - Meditation (Matsa Remix)
Views: 190 Savanna Caggiano
What are Multisig transactions?
 
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Join the Cryptoversal world at http://www.cryptoversal.com What is Multi-Sig, and What Can It Do? Multi-sig holds enormous potential: trustless escrow, trustless margin, and robust Cryptocurrencies reviews, ICOs, exchanges, gaming sites and payment methods. All things crypto on every level!
Views: 69 Cryptoversal
Test demonstration of OpenBazaar Multisig
 
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A quick demonstration of how OpenBazaar multisig currently works. The steps are: 1. Buyer purchases product and sends money to multisig. 2. Seller ships product and puts in their bitcoin receiving address. 3. Buyer receives product and releases payment to merchant. That's it.
Views: 1786 Sam
Tom Holub of Bit Oasis on Multi-sig Bitcoin Wallets
 
25:41
Tom discusses his Multi-sig Wallet Implementation and how he plans to use multi-sig for Bit Oasis.
Views: 899 Dana Wright
A 3-of-5 Multisig Wallet with Copay
 
04:09
Copay is a multisignature wallet being developed by BitPay's bitcore team. Copay has a number of innovative features that make it unlike any other wallet: * It is inherently multisignature, meaning more than one person (or device) must sign outbound transactions. This makes it next to impossible for someone to steal funds from the wallet. If one person has their private keys stolen, the funds are still safe. * It is decentralized and does not rely on centralized servers. There is a small dependence on two servers (PeerJS and Insight), both of which can be run yourself. The wallet files are stored locally in HTML5 local storage, and communication is p2p using WebRTC. * The wallet uses BIP32, which, in a nutshell, means it's really easy to back up your wallet. Back it up once, and it's backed up forever. * It is 100% open-source, both client-side and server-side. We encourage outside contributors in every aspect Copay, as well as with our other projects, Bitcore and Insight. The source code is available here: https://github.com/bitpay/copay The transaction created in the video can be seen here: http://test.insight.is/tx/10a7c5fa0eccb075fc7dc38b146b07b980a3dc95794878db3a7151571922fcdf
Views: 2385 Ryan X. Charles
How to Create a Bitcoin Cold Storage Wallet Using Electrum
 
35:15
The Crypto Dad shows you how to set up a cold storage wallet using the Electrum Bitcoin wallet. We go through creating an “air-gapped” computer with no connection to the Internet. Then we install the Electrum Bitcoin Wallet on that computer. This copy will be used just to sign transactions. It will never connect to the Internet. We than install the “watching-only” component on our normal “working machine” This component of the wallet will only receive bitcoin or broadcast transactions that have been signed by the cold storage component. Electrum bitcoin wallet: https://electrum.org/#home New social Media links! Twitter: https://twitter.com/The_CryptoDad Facebook: https://www.facebook.com/TheCryptoDad Donate Bitcoin: 1JBxwXG8P6PYKKsrHKzQduM8s8RoV3dnjr Related videos on my YouTube Channel Creating a Segwit (segregated-witness) Bitcoin Wallet Using the Electrum Bitcoin Wallet Version 3 https://youtu.be/uvm-GWGG6_c How to Buy Bitcoin on Coinbase and Move it to the Electrum Bitcoin Wallet https://youtu.be/9fvDp43rShA Backing up Your bitcoins using the Electrum Bitcoin Wallet https://youtu.be/Po7Vtl9xOD0 What is the Electrum Bitcoin Wallet? The Electrum Bitcoin wallet is software that runs on your computer. It is an application that allows you to send, receive and store bitcoins. It also has advanced features that allow you to check your current balance, see a list of transactions, and even maintain several “wallets”. It does this by allowing you to access a bitcoin address on the Bitcoin blockchain. Access to a Bitcoin address is provided by a cryptographic key-pair. The key-pair is a public/private asymmetric cryptographic key. The public key is the receiving address. This is the address you can share with others, so they can send you bitcoins. The private key is the part that allows you to send bitcoins. The Electrum Bitcoin software creates a new key-pair whenever you create a new wallet. It stores the private key on your computer. The private key is protected by on-disk encryption. Electrum will automatically decrypt the private key when you wish to send bitcoins. Access to the private key is also enhanced by a password or your own choosing that you can set when the wallet is created. Best practice is to choose a strong password for your Electrum Bitcoin Wallet. The Electrum Bitcoin Wallet is one of the most popular Bitcoin wallets for desktops. It has several advanced features that make it robust and flexible. It supports Two Factor Authentication, Multi-sig Wallets, and Cold Storage. Another unique feature of the Electrum Bitcoin Wallet is that it does not require you to download the entire Bitcoin Blockchain on to your computer (which can be time-consuming and requires a lot of space). It does this by maintaining several Blockchain servers which allow you to quickly access the current state of the Bitcoin Blockchain and the up-to-date status of the wallets you control. This includes your current balances and the transaction history for each of your wallets. What is Bitcoin? Bitcoin is a new technology that functions as a digital currency. It is a peer-based, decentralized way to hold, store, send, and receive value. It does this by maintaining a cryptographic “ledger” called the Blockchain. All of the bitcoins in existence are created and stored on the Blockchain. Bitcoin with a capital “B” refers to the technology itself. Bitcoin spelled with a little “b” refers to the tokens that hold the value and can be exchanged with others. Multiple copies of the Blockchain exist on thousands if not millions of computers worldwide. Each copy of the Blockchain “verifies” itself by connecting to the Internet and making sure it has the most up-to-date list of transactions. The Blockchain maintains its integrity by using strong, modern, encryption techniques. This makes it impossible for anyone to alter the ledger, create fake transaction or “double-spend” their bitcoins. Bitcoins do not require banks or third-party financial services to act as central clearing houses for electronic transfers. In essence, Bitcoin technology “cuts out the middleman”. Bitcoin is a decentralized, peer-to-peer monetary system that exists outside of the traditional, centralized, fiat-currency based financial system.
Views: 4379 Rex Kneisley
What is a Multi-Sig Wallet?
 
01:07
Full article: https://freestartupkits.com/articles/technology/cryptocurrency-news-and-tips/what-is-a-multi-sig-wallet-how-does-it-work/ Multisignature, multi-sig, or multisig is a way to add extra security to all cryptocurrency transactions. Multisignature addresses need more than one user to “digitally sign” a transaction before it gets added a blockchain.
Ryan Singer - Using Multisig to Secure Bitcoin Wallets
 
32:12
2014 Texas Bitcoin Conference in Austin, Texas. http://TexasBitcoinConference.com
How To Use Electrum Bitcoin Wallet
 
32:07
How to use electrum bitcoin wallet How to use the electrum bitcoin cryptocurrency wallet, here this 30 min video will show you how to use the wallet and set your preferences. There is also variants of electrum from other developers, at least for bitcoin cash, called electron cash and other coins such as bitcoin diamond, bitcoin private, litecoin & DASH. Always use caution and double check things are correct before doing transactions with your coins and only download wallets from their official safe sources. Make sure to use a decent fee or it will take a long time to confirm anything. :) Download for Bitcoin https://electrum.org/#download Bitcoin Cash https://electroncash.org/ Thank you for watching MD Interactive, feel free to like and subscribe for more cool new videos! ;) Join the MD Interactive Discord channel to chat, trade and meet cool new people here, https://discord.gg/KsN9zkU ◢ Subscribe: http://www.youtube.com/subscribe_widget?p=michieldankmeijer ◢ Gamestop Coupon: https://www.chippmunk.com/gamestop-coupons/#cp=mdinteractive Social ◢ Discord: https://discord.gg/KsN9zkU ◢ Steam: https://www.steamcommunity.com/groups/mdinteractive ◢ Facebook: https://facebook.com/mdinteractiveofficial ◢ Twitter: https://www.twitter.com/mdankmeijer ✪ Curse UFG
Views: 4974 MD Interactive
Нужен Bitcoin Multisig Wallet? Он есть у меня) Смотри инструкцию
 
03:14
Подробная инструкция загрузки и использования Bitcoin Multisig Wallet от Copay. пользуемся и ставим лойсы!) https://copay.io
Cancoin - Multi-Sig Bitcoin Wallet
 
00:57
Cancoin Multi-signature (PS2H) Bitcoin Wallets. Available now at http://cancoin.co
Views: 421 Cancoin
Jameson Lopp on BitGo's Ethereum Multisig Wallet
 
01:10:46
Jameson is a software engineer who became interested in cryptocurrency in 2012. He is the creator of Statoshi, a fork of Bitcoin Core that analyzes statistics of Bitcoin nodes, founder of Mensa's Bitcoin Special Interest Group, and is employed by BitGo, a multisignature Bitcoin wallet. Jameson's presentation will be about the challenges of Ethereum indexing. Over the past year BitGo has made multiple attempts at building infrastructure to support a multisig wallet on Ethereum. This presentation will cover a variety of issues that they ran into and how they overcame them in order to develop the highly performant indexer that is running today in production. Join the Decentralize Boston Slack: https://decentralize-boston-slackin.now.sh/
Views: 580 Decentralize Boston
Brief Tutorial on Gnosis Multisig wallet
 
09:10
Use online version on https://wallet.gnosis.pm/ or download desktop Gnosis is a most used open source multisig wallet with the UI Many people have problems using it, so we've created a brief tutorial
Views: 1058 4IRE labs
Coding with Cocktails: Ethereum Multi-Sig Contract
 
50:52
The first video in hopefully a series of videos where I drink cocktails and do live demos of programming things. In this video I'm drinking an amaretto sour while building a multi-sig contract with solidity. Checkout the final code here: https://github.com/DecentVentures/multi-sig-wallet-contract ETH: 0x6e80C53f2cdCad7843aD765E4918298427AaC550
Views: 1060 Micah Riggan
Viacoin Copay - Multisignature Wallet
 
01:37
This video explains how creating and sending multisignature transactions with Viacoin Copay works. Download Viacoin Copay here: Android - https://play.google.com/store/apps/details?id=org.viacoin.copay iOS - Coming soon Desktop - https://github.com/viacoin/copay/releases/tag/v4.3.2
Views: 414 Viacoin
Learning Solidity : Tutorial 25 Multisig Wallet cont. Multi Authentication
 
37:42
Homepage of solidity : https://solidity.readthedocs.io/en/develop/ Remix : http://remix.ethereum.org Source code : https://github.com/willitscale/learning-solidity If you would like to donate some Ethereum my wallet is: 0xC8c8c3Fae80e3eD236970e1C93AcF5B91D0993e2 Many thanks!
Views: 2975 Will it Scale
E-coin: Bitcoin Debit Card & Multi-Sig Wallet
 
05:42
https://www.e-coin.io Fiat and Digital currencies in one card.
Views: 13134 E-Coin
Backing up Your bitcoins using the  Electrum Bitcoin Wallet
 
18:47
The Crypto Dad shows you how to back up the Electrum Bitcoin wallet. I go through making sure your password is stored in a safe place. Then I talk about printing out the seed and keeping it safe. Then I discuss how to export your private keys. Finally, I show you how to make a copy of your wallet and re-open it. Electrum bitcoin wallet: https://electrum.org/#home iPhone Screen share was done using X-Mirage http://www.x-mirage.com/ Passwords were stored in the One Password App https://1password.com/ Donate Bitcoin: 1JBxwXG8P6PYKKsrHKzQduM8s8RoV3dnjr What is the Electrum Bitcoin Wallet? The Electrum Bitcoin wallet is software that runs on your computer. It is an application that allows you to send, receive and store bitcoins. It also has advanced features that allow you to check your current balance, see a list of transactions, and even maintain several “wallets”. It does this by allowing you to access a bitcoin address on the Bitcoin blockchain. Access to a Bitcoin address is provided by a cryptographic key-pair. The key-pair is a public/private asymmetric cryptographic key. The public key is the receiving address. This is the address you can share with others, so they can send you bitcoins. The private key is the part that allows you to send bitcoins. The Electrum Bitcoin software creates a new key-pair whenever you create a new wallet. It stores the private key on your computer. The private key is protected by on-disk encryption. Electrum will automatically decrypt the private key when you wish to send bitcoins. Access to the private key is also enhanced by a password or your own choosing that you can set when the wallet is created. Best practice is to choose a strong password for your Electrum Bitcoin Wallet. The Electrum Bitcoin Wallet is one of the most popular Bitcoin wallets for desktops. It has several advanced features that make it robust and flexible. It supports Two Factor Authentication, Multi-sig Wallets, and Cold Storage. Another unique feature of the Electrum Bitcoin Wallet is that it does not require you to download the entire Bitcoin Blockchain on to your computer (which can be time-consuming and requires a lot of space). It does this by maintaining several Blockchain servers which allow you to quickly access the current state of the Bitcoin Blockchain and the up-to-date status of the wallets you control. This includes your current balances and the transaction history for each of your wallets. What is Bitcoin? Bitcoin is a new technology that functions as a digital currency. It is a peer-based, decentralized way to hold, store, send, and receive value. It does this by maintaining a cryptographic “ledger” called the Blockchain. All of the bitcoins in existence are created and stored on the Blockchain. Bitcoin with a capital “B” refers to the technology itself. Bitcoin spelled with a little “b” refers to the tokens that hold the value and can be exchanged with others. Multiple copies of the Blockchain exist on thousands if not millions of computers worldwide. Each copy of the Blockchain “verifies” itself by connecting to the Internet and making sure it has the most up-to-date list of transactions. The Blockchain maintains its integrity by using strong, modern, encryption techniques. This makes it impossible for anyone to alter the ledger, create fake transaction or “double-spend” their bitcoins. Bitcoins do not require banks or third-party financial services to act as central clearing houses for electronic transfers. In essence, Bitcoin technology “cuts out the middleman”. Bitcoin is a decentralized, peer-to-peer monetary system that exists outside of the traditional, centralized, fiat-currency based financial system.
Views: 5611 Rex Kneisley
Interview: LGO Markets CEO Hugo Renaudin - Institutional Crypto Exchange - Multi Sig Wallet & More
 
20:57
Learn more about LGO Markets - https://lgo.markets/ Get the Ledger Nano X to Safely store your Crypto - https://www.ledgerwallet.com/r/acd6 Help support the channel by joining my Patreon group - https://www.patreon.com/thinkingcrypto Sign up with Coinbase for Free and get $10 free Bitcoin when you spend $100! - https://www.coinbase.com/join/59db057bed984302ff3b1275 Easily purchase Altcoins such as XRP, Cardano and more on the Binance exchange - https://www.binance.com/?ref=2157551 Follow on Twitter - https://twitter.com/ThinkingCrypto1 Follow on Facebook - https://www.facebook.com/thinkingcrypto/ Website - http://www.ThinkingCrypto.com/ Follow on Steemit - https://steemit.com/@thinkingcrypto ================================================= Help support the channel! Donations : BTC - 3GPcKwB3UGML4UiYqZM6BYx7Nu5Dj7GKDD ETH - 0x7929e49cabe8d95d31392eaf974f378b508da2f4 LTC - MWMhsyGX7tsTPGS2EtSCAWpy3ywCv25r6B XRP - rDsbeomae4FXwgQTJp9Rs64Qg9vDiTCdBv Destination Tag - 35594196 ================================================= LGO Markets, an institutional Crypto Exchange based in New Jersey, officially launched Monday. The exchange will compete with the likes of Bakkt, Erisx and Fidelity Digital Assets. In this interview with the CEO and Co-Founder Hugo Renaudin we discuss the company, team, services, 10 clients onboard and 56 others in the process of onboarding. Hugo also talks about LGO Markets' retail service that will launch later in 2019 and his crypto market predictions. ================================================= Disclaimer - Thinking Crypto and Tony are not financial or investment experts. You should do your own research on each cryptocurrency and make your own conclusions and decisions for investment. Invest at your own risk, only invest what you are willing to lose. This channel and its videos are just for educational purposes and NOT investment or financial advice. Bitcoin, Bitcoin News, Bitcoin ETF, XRP, XRP News, Ripple, Ripple XRP, Ripple News, Ethereum, Ethereum News, Litecoin, Litecoin News, Crypto, Crypto News, Token Taxonomy Act, Bakkt, Erisx, Fidelity Digital Assets, Cryptocurrency, Digital Assets
Views: 1591 Thinking Crypto
Bitcoin 101 - Multi-Signature Addresses pt2 - Spending, Protocol & Coding
 
33:56
Part One - Generating a Multisignature Address Part Two - Spending From the Multisignature Address This part two of a two part series on muti-signature addresses and wallets. This is important technology for massively improving bitcoin security. In part one we generated a multisig address/wallet. In this part, we'lll walk you through all the steps necessary to spend the funds, going line by line through some simple python code and generating a payment in bitcoind. In many ways, multisig addresses are the answer to most of bitcoin's concerns and fears of theft. And now its time to scale up massive implementation for them. Originally introduced into the bitcoin client a few years ago, multisignature addresses massively more secure than regular ones. Their adoption by all wallet manufacturers is coming. But, for you techies and voyeurs, we'll jump inside the ideas of multi-sig and even program the stuff. Hope you enjoy. James' code can be found here: https://github.com/wobine/blackboard101 you'll see multisigs part one and two Jeff Garzik's Bitcoin python library is here https://github.com/jgarzik/python-bitcoinrpc remember to replace his connection.py file with ours for multisigs And a little bit about bitcoind is here https://en.bitcoin.it/wiki/Bitcoind but remember that it really is the most bare-bones bitcoin wallet software, but the one which allows the most programming. we love it. And finally, here's our lovely multisig address http://live.bitcore.io/address/35Z3xG92YkW5Xo4ngQw6w5b3Ce6MDw94A8 So cool to see it live and in action. Welcome to WBN's Bitcoin 101 Blackboard Series -- a full beginner to expert course in bitcoin. Please like, subscribe, comment or even drop a little jangly in our bitcoin tip jar 1javsf8GNsudLaDue3dXkKzjtGM8NagQe Thanks, WBN
Views: 11846 CRI