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The description :lang help home search bitcoin open transaction advanced bitcoin scripting -- part 1: transactions & multisig this is the first part of a more technical talk where andreas explores bitcoin script,...
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lang help home search bitcoin open transaction advanced bitcoin scripting -- part 1: transactions & multisig 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: 27577 aantonop 29:09 tracking bitcoin transactions on the blockchain - sans dfir summit 2017 bitcoins are a commonly-used currency among cyber criminals for exchanging goods and services and receiving payments from ransomware. while cryptocurrency claims to promote anonymity, the nature of the blockchain’s public ledger means that criminal activities can be traced and correlated. this presentation will cover a brief high-level overview of how transactions on the blockchain work and will focus on how to apply this knowledge in order to both manually and automatically map out transactions, associate bitcoin addresses, and identify potential cybercriminal-owned bitcoin wallets with the goal of providing context to the scale and duration of a campaign impacting your enterprise. examples will include identifying a locky affiliate’s infrastructure, attributing the shark/atom ransomware, and identifying “bitcoin exchanges” on the blockchain. kevin perlow, associate, booz allen hamilton views: 3625 sans digital forensics and incident response 05:26 bitcoin q&a: genesis block and coinbase transactions how were the first bitcoins created? who was mining in those early days? what is a coinbase transaction and how do miners integrate it within each block? genesis block code: https://github.com/bitcoinbook/bitcoinbook/blob/4bad0fb922c26c9088402aefe95cbf4276f2e334/code/satoshi-words.cpp more on coinbase transactions: https://github.com/bitcoinbook/bitcoinbook/blob/f8b883dcd4e3d1b9adf40fed59b7e898fbd9241f/ch06.asciidoc note: "coinbase" transactions should not be confused with the centralised california-based exchange, coinbase inc. these questions are from the mooc 9.2 session, which took place on february 23rd 2018. 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: consensus algorithms, blockchain technology, and bitcoin - https://youtu.be/fw3wkysh_ho advanced bitcoin scripting part 1: transactions and multisig - https://youtu.be/8feaxjkmdcq what is consensus: rules without rulers - https://youtu.be/2tqo7px5pyc forkology: a study of forks for newbies - https://youtu.be/rpecexy1qbm bitcoin: where the laws of mathematics prevail - https://youtu.be/haj1hvon0e0 who is satoshi nakamoto? - https://youtu.be/1iev-guznx4 software distribution security - https://youtu.be/_v0vqy046ym what is mining? - https://youtu.be/t4p4imqmxbq miners, pools, and consensus - https://youtu.be/jhz7lm4nclw the mining process - https://youtu.be/l4xtau0ymjw nonces, mining, and quantum computing - https://youtu.be/d4xxjh677j0 the rules of bitcoin (part 1) - https://youtu.be/vnqu4uylfos the rules of bitcoin (part 2) - https://youtu.be/vtip0gp4w1e rules versus rulers - https://youtu.be/9eeluhc9sxe the value of proof-of-work - https://youtu.be/zdglihwstm8 could a state-sponsored 51% attack work? - https://youtu.be/kud8zggm6qo honest nodes and consensus - https://youtu.be/kahy2ymi-tg spam transactions and child pays for parent (cpfp) - https://youtu.be/t3c0e4fksns is bitcoin a democracy? - https://youtu.be/tc3hq76ut5g decentralized power, leaderless governance - https://youtu.be/e5vbdlqtpzu scaling, trust, and trade-offs - https://youtu.be/vcxmhwqyjwu what is the role of nodes? - https://youtu.be/fnk7nyxtoyq why running a node is important - https://youtu.be/ox0yrv-6jvs lightning, full nodes, and miners - https://youtu.be/dljg4ohdjzs running nodes and payment channels - https://youtu.be/ndcfbfe_yoy what happens during a fork? - https://youtu.be/xbk8hbj1xvo segwit adoption - https://youtu.be/kcstvtrk6i4 spam transactions and child pays for parent (cpfp) - https://youtu.be/t3c0e4fksns energy consumption - https://youtu.be/2t0ouiw89ii solar energy and mining in space - https://youtu.be/cusakcpa8am bitmain and asicboost allegations - https://youtu.be/t6jjdd2aj8k andreas m. antonopoulos is a technologist and serial entrepreneur who has become one of the most w
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Domain: jollaphones.eu
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