<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[RSS Feed]]></title><description><![CDATA[RSS Feed]]></description><link>http://direct.ecency.com</link><image><url>http://direct.ecency.com/logo512.png</url><title>RSS Feed</title><link>http://direct.ecency.com</link></image><generator>RSS for Node</generator><lastBuildDate>Tue, 07 Apr 2026 20:10:09 GMT</lastBuildDate><atom:link href="http://direct.ecency.com/@rosargia/rss" rel="self" type="application/rss+xml"/><item><title><![CDATA[Blockchain for Business #3: Requirements for a blockchain in a business environment]]></title><description><![CDATA[A blockchain needs to fulfill four really important points, to be suitable for business applications: shared ledger: an append only system of records shared across the network privacy: a business network]]></description><link>http://direct.ecency.com/blockchain-business/@rosargia/blockchain-for-business-3-requirements-for-a-blockchain-in-a-business-environment</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-business/@rosargia/blockchain-for-business-3-requirements-for-a-blockchain-in-a-business-environment</guid><category><![CDATA[blockchain-business]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Mon, 05 Feb 2018 12:44:54 GMT</pubDate><enclosure url="https://images.ecency.com/p/21PRtjEYuiCYoeooyL19bwmxRQeED4AKN8kyMfjngfjWJHGSrdERCV98gSHfnTCSAWApNCSDSzBEfkYLJzhUyfkV4RomwhrFAN5fuBUXdoU1MPw1xhzJkJyBYZvZx7FivPVWQ9ahojnNPAf6kEUAGDU?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Blockchain for Business #2: Blockchain role in business networks]]></title><description><![CDATA[Let's see in further details what could be the blockchain role in business networks. First of all, business never operate alone. They are always connected with other businesses, governments, banks and]]></description><link>http://direct.ecency.com/blockchain-business/@rosargia/blockchain-for-business-2-blockchain-role-in-business-networks</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-business/@rosargia/blockchain-for-business-2-blockchain-role-in-business-networks</guid><category><![CDATA[blockchain-business]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Sun, 04 Feb 2018 09:08:42 GMT</pubDate><enclosure url="https://images.ecency.com/p/JvFFVk6AaGW6NqDFLaNS1wDtubgNHBxfDEzfE9GZjn2gVU4kD5yoz8BEUn7eoY7pBk2eHz74huFs4BjMKPZJXNWqqiuM3ACdCfrJ3AH3MU4PEY9m7FXSRxpcDMNq7WUnmT3G14qAfQ?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Blockchain for Business #1: What is a blockchain?]]></title><description><![CDATA[Business networks are often inefficient because each participant in the network keeps records of all transactions between all the parties that the business interacts with. This process causes the duplication]]></description><link>http://direct.ecency.com/blockchain-business/@rosargia/blockchain-for-business-1-what-is-a-blockchain</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-business/@rosargia/blockchain-for-business-1-what-is-a-blockchain</guid><category><![CDATA[blockchain-business]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Sat, 03 Feb 2018 09:49:30 GMT</pubDate><enclosure url="https://images.ecency.com/p/8SzwQbWfyXD4UBtox1qEY9bEBQqkEWBnuUAgb9cRmajhkfVp8QhiJMiYH7ooXffxDcfN9XfkzCKjz7oBxTbSMt5Bv9AS9E17AizbLSgS1eLnLuiz1F4?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Blockchain & Cryptocurrency #13: Bitcoin Scripting Language]]></title><description><![CDATA[In this post we're going to talk about what the Bitcoin scripting language and Bitcoin scripts. We will also see why a script is used in the transaction output instead of a single public key. Bitcoin scripting]]></description><link>http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-13-bitcoin-transactions-schema</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-13-bitcoin-transactions-schema</guid><category><![CDATA[blockchain-crypto]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Fri, 19 Jan 2018 17:03:54 GMT</pubDate><enclosure url="https://images.ecency.com/p/2FFvz9vxu4As4XPCyxJvwgy2nh7DwPc8tECGsbn1YNFspdbfuzcri8SHBVAckrQ5rJgmVbPiJ381mUeJBgW5myY45mytioPWmRtHQhqKagRcAHFQ5CxnEGrX2sCir?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Blockchain & Cryptocurrency #12: Bitcoin Transactions Schema]]></title><description><![CDATA[In this course section, we will go into further details talking about Bitcoin transactions and looking at real data structures and real scripts. Bitcoin transactions At the moment, to simplify the model,]]></description><link>http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-12-bitcoin-transactions</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-12-bitcoin-transactions</guid><category><![CDATA[blockchain-crypto]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Thu, 18 Jan 2018 15:18:57 GMT</pubDate><enclosure url="https://images.ecency.com/p/54TLbc8y6GkJ5VbVd9vLiSsxG691k6Chq5z1xYKw6AJ9VerLJh6d2AL5sFJNFd3uNvFRJtuaTwS7owYCTwBEdTZKF1hBhBaTGE8629TC5PAFTvWzFqJcShsrKREr46zGMfSJRpXx2?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Blockchain & Cryptocurrency #11: Conclusions on mining]]></title><description><![CDATA[In the previous post we have seen a lot of concepts regarding Bitcoin, so let's draw some conclusions on mining and bitcoin network. Is mining profitable? It's quite expensive for miners to be in operation,]]></description><link>http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-11-incentives-and-proof-of-work</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-11-incentives-and-proof-of-work</guid><category><![CDATA[blockchain-crypto]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Thu, 18 Jan 2018 07:16:30 GMT</pubDate><enclosure url="https://images.ecency.com/p/HNWT6CKZBgqxB4Dgdzz5gsJdBSsxpiVXBhAVEKMWmEnxCTtQngPbEvJiLyZ7mGeoWqS2wvBGBuLfAtVpHCaFibzuFMrBpJ38bmsC7vp8LAZriHxSoCwaW6JaXYJ?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Blockchain & Cryptocurrency #10: Incentives and Proof-of-Work]]></title><description><![CDATA[In the previous posts we have seen a lot of concepts regarding Bitcoin. Now let's make a quick recap and draw some conclusions on mining and bitcoin network. Is mining profitable? It's quite expensive]]></description><link>http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-10-incentives-and-proof-of-work</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-10-incentives-and-proof-of-work</guid><category><![CDATA[blockchain-crypto]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Sun, 07 Jan 2018 09:35:27 GMT</pubDate><enclosure url="https://images.ecency.com/p/HNWT6CKZBgqxB4Dgdzz5gsJdBSsxpiVXBhAVEKMWmEnxCTtQngPbEvJiLyZ7mGeoWqS2wvBGBuLfAtVpHCaFibzuFMrBpJ38bmsC7vp8LAZriHxSoCwaW6JaXYJ?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Blockchain & Cryptocurrency #9: Incentives and Proof-of-Work]]></title><description><![CDATA[In the previous post we saw the technical mechanism ruling Bitcoin protocol. Now we will go into further details regarding incentives and proof of work that encourage nodes to behave honestly. Incentives]]></description><link>http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-9-incentives-and-proof-of-work</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-9-incentives-and-proof-of-work</guid><category><![CDATA[blockchain-crypto]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Fri, 05 Jan 2018 11:04:18 GMT</pubDate><enclosure url="https://images.ecency.com/p/HNWT6CKZBgqxB4Dgdzz5gsJdBSsxpiVXBhAVEKMWmEnxCTtQngPbEvJiLyZ7mGeoWqS2wvBGBuLfAtVpHCaFikLkbd9pBdAPettTRqzR2FijaHpEx97GzbadmLz?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Blockchain & Cryptocurrency #8: Consensus without Identity: the Blockchain]]></title><description><![CDATA[In this post we will discuss in more details the Bitcoin's consensus algorithm. We will see how it is possible to reach consensus without identity through the blockchain. Nodes and identities Nodes without]]></description><link>http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-8-consensus-without-identity-the-blockchain</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-8-consensus-without-identity-the-blockchain</guid><category><![CDATA[blockchain-crypto]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Thu, 04 Jan 2018 13:09:48 GMT</pubDate><enclosure url="https://images.ecency.com/p/4PYjjVeteBCww3WFYYeNrjF86EwKTy3JF1C2jWba2KzwTUSvXCfiNLqAhd8tB4KpRNmZyA9cTp419hBP6Dif3ZL75HFSmCVVRLYSNPKGbjc?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Blockchain & Cryptocurrency #7: Distributed consensus]]></title><description><![CDATA[We are a group composed by some Informatics and Mathematics who like to share their IT, Math and Cryptographic knowledge with people. It is possible to find our complete courses on website. Since we think]]></description><link>http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-7-distributed-consensus</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-7-distributed-consensus</guid><category><![CDATA[blockchain-crypto]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Wed, 03 Jan 2018 12:59:06 GMT</pubDate><enclosure url="https://images.ecency.com/p/Zskj99Ky2ULEK15gDpftkUv5AxE9pbpdcaujjj1NKmuUsivB1hchHcSM493aNMgvigQLLeN59Syij6ygAFwMGVeA7mDij65otAL73Ksqv3FdC3np7No8?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Smartphone Photography: Nativity]]></title><description><![CDATA[Here's the Nativity we have created this year at home. This is also my entry to the #decorationcontest. We have built the Nativity hut with stones we collected this summer during mountain walks. It is]]></description><link>http://direct.ecency.com/smartphonephotography/@rosargia/smartphone-photography-nativity</link><guid isPermaLink="true">http://direct.ecency.com/smartphonephotography/@rosargia/smartphone-photography-nativity</guid><category><![CDATA[smartphonephotography]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Tue, 26 Dec 2017 17:21:15 GMT</pubDate><enclosure url="https://images.ecency.com/p/3jpR3paJ37V8t3d5gG8YxUrFtTrvhgCDjjN8jFs75vBLFgwPy8tadmNUbqwP1VhCdwa6QajxpQ2vK7h45TkPGfDVVzgZyagVKERMiBpVzgMeKyU328ZRQtSPDULipZhEUFFie?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Blockchain & Cryptocurrency #6: Centralization vs. Decentralization]]></title><description><![CDATA[We are a group composed by some Informatics and Mathematics who like to share their IT, Math and Cryptographic knowledge with people. It is possible to find our complete courses on website. Since we think]]></description><link>http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-6-centralization-vs-decentralization</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-6-centralization-vs-decentralization</guid><category><![CDATA[blockchain-crypto]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Tue, 19 Dec 2017 11:55:36 GMT</pubDate></item><item><title><![CDATA[Blockchain & Cryptocurrency #5: A simple cryptocurrency, ScroogeCoin]]></title><description><![CDATA[We are a group composed by some Informatics and Mathematics who like to share their IT, Math and Cryptographic knowledge with people. It is possible to find our complete courses on website. Since we think]]></description><link>http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-5-a-simple-cryptocurrency-scroogecoin</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-5-a-simple-cryptocurrency-scroogecoin</guid><category><![CDATA[blockchain-crypto]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Mon, 18 Dec 2017 07:32:21 GMT</pubDate><enclosure url="https://images.ecency.com/p/B69zEgfimpAy63rX2RWSSsQ8LDiEYMs2cdvug5AvV4V4WemyDhwRBSp6LDtqwxTxektqkM6nx2zW5wLodrHVw86ZvZ3ZMGNQupjAWY9c?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Blockchain & Cryptocurrency #4: Public keys as identities]]></title><description><![CDATA[We are a group composed by some Informatics and Mathematics who like to share their IT, Math and Cryptographic knowledge with people. It is possible to find our complete courses on website. Since we think]]></description><link>http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-4-public-keys-as-identities</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-4-public-keys-as-identities</guid><category><![CDATA[blockchain-crypto]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Fri, 15 Dec 2017 08:37:33 GMT</pubDate><enclosure url="https://images.ecency.com/p/C3TZR1g81UNchGPKLQuxAL7oEwDJ42cT977qXjChZBuVe6915cuM71cdkvEKx3QQaA2udDph1vp3CsNPd7BhLC9tv575J9vJPakwzgj5Kq9ijNzCkiDbCT8?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Learning Spot: free courses on IT, Cryptography, Cryptocurrencies and Math]]></title><description><![CDATA[Hello everyone! We are a group of reasearchers in Informatics, Math and Cryptography who like to share our knowledge with other members of the community. Our mission is to publish lessons and news, since]]></description><link>http://direct.ecency.com/introduceyourself/@rosargia/learning-spot-free-courses-on-it-cryptography-cryptocurrencies-and-math</link><guid isPermaLink="true">http://direct.ecency.com/introduceyourself/@rosargia/learning-spot-free-courses-on-it-cryptography-cryptocurrencies-and-math</guid><category><![CDATA[introduceyourself]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Mon, 11 Dec 2017 07:40:45 GMT</pubDate><enclosure url="https://images.ecency.com/p/2gsjgna1uruvUuS7ndh9YqVwYGPLVszbFLwwpAYXYX1um88WQM2nsbHGEx3HqBku5LpGk8N6a1Dg5Lkz7oL2wfXBnr4CkT2zeH6XHXdKh6EjHbJSYN?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Blockchain & Cryptocurrency #3: Digital signatures]]></title><description><![CDATA[We are a group composed by some Informatics and Mathematics who like to share their IT, Math and Cryptographic knowledge with people. It is possible to find our complete courses on website. Since we think]]></description><link>http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-3-digital-signatures</link><guid isPermaLink="true">http://direct.ecency.com/blockchain-crypto/@rosargia/blockchain-and-cryptocurrency-3-digital-signatures</guid><category><![CDATA[blockchain-crypto]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Thu, 07 Dec 2017 08:22:36 GMT</pubDate><enclosure url="https://images.ecency.com/p/B69zEgfimpAy63rX2RWSSsQ8LDiEYMs2cdvug5AvV4V4WemyDhwRBSp6LDtqwxTxektqkM6nx2zW5wLodrHNmphp72tRNrqwFo64abfC?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Steemit #1: Upgrade proposal to add a "Channel feature"]]></title><description><![CDATA[We are a group of Informatics and Matematicians who like to share our knowledge with other people interested in IT, Math and Cryptography. Steemit seems to us a great opportunity to share high quality]]></description><link>http://direct.ecency.com/steemit/@rosargia/2wilyq-steemit-1-upgrade-proposal-to-add-a-channel-feature</link><guid isPermaLink="true">http://direct.ecency.com/steemit/@rosargia/2wilyq-steemit-1-upgrade-proposal-to-add-a-channel-feature</guid><category><![CDATA[steemit]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Thu, 07 Dec 2017 06:11:39 GMT</pubDate></item><item><title><![CDATA[Blockchain & Cryptocurrency #2: Hash pointers and data structures]]></title><description><![CDATA[Hash Pointer A hash pointer is a data structure that is used a lot in the systems that we're talking about. It is basically a pointer to the place where some information is stored. Together with the pointer]]></description><link>http://direct.ecency.com/hash-pointer/@rosargia/hash-pointers-and-data-structures</link><guid isPermaLink="true">http://direct.ecency.com/hash-pointer/@rosargia/hash-pointers-and-data-structures</guid><category><![CDATA[hash-pointer]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Wed, 06 Dec 2017 07:57:57 GMT</pubDate><enclosure url="https://images.ecency.com/p/3W71zzwkiHVdskTMe7bQfQvDFQvm3w6hEc4fmdaQd7sCe2t1hC6GYpKQsWrWNHGKE6xuzMhv1JHfMAqP9qru7TQZQUaNL5TK6iJ4vMUuVJRvHFQVsyRf1G?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[Blockchain & Cryptocurrency #1: Cryptographic Hash Functions]]></title><description><![CDATA[We are going to talk about cryptographic hash functions. We'll talk about their structure and their properties. Later on, we will see their applications. Hash function definition An hash function is a]]></description><link>http://direct.ecency.com/hash-function/@rosargia/cryptographic-hash-functions</link><guid isPermaLink="true">http://direct.ecency.com/hash-function/@rosargia/cryptographic-hash-functions</guid><category><![CDATA[hash-function]]></category><dc:creator><![CDATA[rosargia]]></dc:creator><pubDate>Tue, 05 Dec 2017 13:19:09 GMT</pubDate><enclosure url="https://images.ecency.com/p/2923mMxKEVjH4Q84iLbM2GLbEAcAK16wtkdjt16gTzb4Vy1v9wiESHwt4fnE5TR5PadRpEqN9JurFiMCUfAQtStFuadM2o4U1fnhMMRy3agHbC?format=match&amp;mode=fit" length="0" type="false"/></item></channel></rss>