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  1. Hi, Definition of the Blockchain according to the JoelKatz blog (https://www.distributedagreement.com/2018/09/24/what-is-a-blockchain/) """ A blockchain is a series of states of a distributed ledger where each state, except the first, contains a secure reference to the prior state and sufficient information to demonstrate that the transition from that prior state is valid according to the system’s rules.""" It is clear for me how it achieves 'secure reference' in the case of Bitcoin block since if we changed any piece of byte in the block it would be revealed quickly with hash calculation. On the other hand it would be hard to reproduce hash value for the modified block with the proper difficulty level. My question is how does XRPL create secure reference to the prior state? since in the case of XRPL there is no such concept that we called difficulty level of hash (number of leading zeros). How could be secure? Why is it hard to create and easy to check the secure reference in XRPL? Can you explain me how it works? Thanks in advance
  2. Hi all, I've been trying to do some tests with checks (https://xrpl.org/checks.html) for a project of mine. I'm using the test net (wss://s.altnet.rippletest.net:51233). I can successfully do checkCreate transactions but cannot seem to do a checkCash (tecNO_ENTRY: No matching entry found). I'm using ripple-lib in order to generate those checks. The currency used is XRP, not an issued currency. The test is for 1 XRP or 1000000 drops. Here's the checkCreate transaction: https://testnet.xrpl.org/transactions/F0A3342809F466A216D7930F3001AAAC3CC41877BFEA29A3CC88B4781CC4AC41 Here's the failed checkCash transaction: https://testnet.xrpl.org/transactions/25C901046A4E97B262448EBE339EDC00BBEFDB8366F3ED2E7D499089E8CE6671 The checkID used to do the checkCreate and checkCash is: ABCDEFABABCDEFABABCDEFABABCDEFABABCDEFABABCDEFABABCDEFABABCDEFAF I just can't figure out what I'm doing wrong. I've read the documentation on xrpl.org, tried with 'drops' and 'XRP' as currencies (both ways are used in the doc) but I always get a tecNO_ENTRY. Maybe the Check amendment is not active on the test net node I'm using? How can I know that? Thanks a bunch for your help.
  3. https://todaysgazette.com/kava-labs-is-developing-ripples-xrp-collaterised-stablecoin/
  4. Although arguments can be made against the notion of future adoption of the XRPL by the financial system thru supporting the retention of the current international payment system or emphasizing the technological progress in the SWIFT payment network, they fail to address critical flaws in today’s system. Hackers, political pressure, regulators, and the shrinking correspondent banking system are all legitimate issues that are impacting banking operations. Most international payments are facilitated through the SWIFT network today. SWIFT is a messaging network used to send and receive information on financial transactions between financial institutions. Currently, more than 11,000 financial institutions from around the world are linked to the SWIFT network for operations. Typically, the originating bank is required to have a working relationship with the destination bank in international wire transfers. If there is none, the originating bank can search the SWIFT network for a correspondent bank that has one with both banks.(2) Once found, the transaction is transferred through Nostro accounts held at the intermediary bank for a fee to the destination bank. Although SWIFT’s inception has proven to be beneficial in enabling international payments between banks globally, it’s reliance or the monopolistic position has become a double-edged sword. Due to their international relationships, SWIFT was viewed as an apolitical organization that was independent of any country’s domestic foreign policy. Unfortunately, this has not been proven the case the past few years as political disputes now threaten to fragment the international payments space. Regardless of your political views towards Iran, the United States pressure on SWIFT to disconnect Iranian financial institutions from the network has been unprecedented. While the action undergone by SWIFT contradicts the European Union’s desires. Although the EU intends to maintain trade with Iranian institutions, SWIFT complied with the US requests.(3) With the consequence being that now the international payment network has become weaponized to exert political pressure onto countries or regions. This undermines the trust within the network as participants can ultimately be on the wrong side of political discourse. Along with Iranian FIs, there has been heavy speculation from US media sources and diplomats that Russian financial institutions might face similar sanctions to their Iranian counterparts in the future.(4) Further eroding any participant confidence in SWIFT remaining apolitical. SWIFT’s inability to remain impartial to the network’s participants is already beginning to have repercussions. In Europe, there has been a political push back on the US influence over the payment network. Germany's foreign minister, Heiko Maas, has publicly stated that the EU should "strengthen European autonomy by creating payment channels that are independent of the United States — a European Monetary Fund and an independent SWIFT system".(5) Even more striking were Maas’ comments that the EU had already begun the process of developing an alternative payment system. Both Iran and Russia have also taken similar responses to the EU. Iran has begun implementing an alternative banking platform for banking transactions with foreign institutions.(6) Meanwhile, Russian financial institutions have prepared themselves to be disconnected from the SWIFT network at a moments notice and have begun to adopt another alternative payment system CIPS. CIPS or the Chinese Alternative Global Payments System is also an alternative payment platform provided by China. CIPS was intended to make transactions between China and Russia easier while enticing other countries to utilize the system.(7) Russia has also begun to develop its own payment system called the “System for Transfer of Financial Messages” (SPFS). Essentially, the global political environment has pushed regions or countries to develop or adopt alternative solutions to SWIFT. Creating an ever growing, fragmented international payment network that will require interoperability between systems. SWIFT’s security has also been exploited these past several years, further testing the participant's trust of the network. Along with the frequency of these hacks occurring, the severity of them is increasing. Of the top five biggest SWIFT hacks by money lost, four of them have occurred within the past two years.(8) The sophistication of these attacks is becoming so advanced for SWIFT’s liking that they have begun to issue warnings and urge participants to increase their security measures.(9) In some attacks, hackers have been able to order payments to banks in other countries by copying preformatted payment requests into the SWIFT messaging software. Even further eroding trust in the network’s security, it was discovered that the NSA had breached SWIFT’s security and have developed tools for its operations. Thru leaked documents and files by a hacker group, the public was made aware of how the NSA had accessed the messaging system. Possibly setting in an uncomfortable feeling for financial institutions located in Eastern countries that the SWIFT network is a possible vector for attacks. Structurally, the correspondent banking system has been on a gradual decline for several years while total volume and value of payments through SWIFT are increasing. The Financial Stability Board conducted a study in which the FSB found that from 2011 to the end of 2017, active correspondent relationships declined by 15.5 percent across all currencies.(1) While for 2017 alone, it declined by 4.1 percent. More recent studies have concluded that 2018 saw declines in active relationships and corridors of about 3.5% and 2% respectively.(11) With the global correspondent banking network now declining by about 20% and the number of active corridors having fallen by roughly 10% the past seven years. This decline in active correspondent relationships has also coincided with the increased concentration within the correspondent banking market. Remaining participants in the network have their market share increase as competing banks exit the system. Both these trends pose respective risks and issues to the banking system. An increase in the volume of payments with the decrease in the number of correspondent relationships is theorized to increase the length of the payment chains. Implying payments will need to be facilitated thru more intermediary parties to reach the same destination. Possibly adding more exchange or transaction fees along with increasing the settlement time. Meanwhile, a concentration in the correspondent banking market introduces an unwelcoming scenario. Theorized consequences include a decrease in the competition of services, leading to higher costs and more fragile networks. As the payment network relies on fewer participants to facilitate payments, the failure of a participant will have greater repercussions as they are more relied on. Ultimately, the global political environment is causing a fragmentation of the global payment system while the financial system is gradually entering a delicate state. Both trends have already begun to force global and financial institutions to adapt and find alternative systems. Regardless of what SWIFT can develop to enhance it’s services to its participants, there will be issues the organization cannot resolve. Interoperability will more than likely be the key in enabling the future global payment space to withstand any geopolitical shocks, along with providing a crucial capability if the financial system is under strain due to the structure of the correspondent banking system. Placing Ripple’s xCurrent or ILP in an advantageous position. 1. https://bankingjournal.aba.com/2018/11/basel-decline-in-global-correspondent-banking-relationships-accelerates/ 2. https://www.investopedia.com/terms/c/correspondent-bank.asp 3. https://www.ft.com/content/8f16f8aa-e104-11e8-8e70-5e22a430c1ad 4. https://www.voanews.com/a/us-diplomat-russia-should-release-ukrainian-sailors-by-christmas-/4688911.html 5. https://www.businessinsider.com/germany-wants-european-rival-to-us-backed-swift-payment-system-2018-8 6. https://en.mehrnews.com/news/139715/Iran-welcomes-foreign-banks-to-join-its-alternative-to-SWIFT 7. https://ethereumworldnews.com/after-ripple-chinas-cips-now-competes-with-swift-departure-from-us-dollar/ 8. https://medium.com/@kvantorcom/top-5-biggest-swift-hacks-52fca78145c 9. https://www.reuters.com/article/us-cyber-heist-warning/swift-warns-banks-on-cyber-heists-as-hack-sophistication-grows-idUSKBN1DT012 10. https://www.reuters.com/article/us-usa-cyber-swift/hacker-documents-show-nsa-tools-for-breaching-global-money-transfer-system-idUSKBN17H0NX 11. https://www.bis.org/cpmi/paysysinfo/corr_bank_data/corr_bank_data_commentary_1905.htm
  5. Blog URL: https://xrpcommunity.blog/introduction-to-xrp-2019-edition/ Just published the updated, 2019 version of an "Introduction to XRP" on the XRP Community Blog! I hope you enjoy the read: Please feel free to share my blog with a friend or share it on any other platform - and thank you for doing so! My blog announcement links on other platforms: Twitter Reddit r/Ripple Reddit r/CryptoCurrency Reddit r/CryptoMarkets Reddit r/xrp Reddit r/RippleTalk Reddit r/alternativecoin Reddit r/CoilCommunity Bitcointalk - alt coin sub forum Bitcointalk - XRP speculation thread
  6. Blog URL: https://xrpcommunity.blog/welcome-to-our-world-bob/ Bob Way, a Ripple alumnus, indicated he's starting work on an ambitious new project! Learn more about him - and his new project - in today's blog. I hope you enjoy the read: Please feel free to share my blog with a friend or share it on any other platform - and thanks for doing so! My blog announcement links on other platforms: Twitter Reddit r/Ripple Reddit r/CryptoCurrency Reddit r/CryptoMarkets Reddit r/xrp Reddit r/RippleTalk Reddit r/alternativecoin Bitcointalk - alt coin sub forum Bitcointalk - XRP speculation thread
  7. Myself and afew other community members are putting together a website that users can use to interact with the ledger. We already have a server setup with the full ledger being downloaded.(75% done) The websites main purpose will be for analyzing the ledger data in various ways as well as keeping track of wallets and more. As of now there is a ton of information scattered across the community in spreadsheets and we are really hoping to provide a place that allows everyone a chance to get a nice visual and interactive, All in one experience. There are members in the community that go well out of their way to provide data. However, there is not much of a way for everyone to add to that data. We have many ideas being worked on for the site and would not mind other members to get involved, whether it is ideas they would like to see or developers who want to be hands on. Feel free to PM me on here or same username inside the XRP discord!
  8. I'm running XRPL validator (public key: nHBmJuwMPRh2mLrYhUdFHNKrZ3cwXEkiGAKXESM4mDvQKMF8WAp7) based on Wietse's Wind docker rippled validator repo (https://github.com/WietseWind/docker-rippled-validator). It's up and running newest rippled version 1.2.0. Now I'm trying to validate my (sub)domain (again according to the instructions of Wietse - https://medium.com/@WietseWind/verify-your-ripple-validator-show-your-domain-da19de30b19bbut) with no success. I'm little bit desperate and really don't know what I'm doing wrong. Hope someone can help me. After a few attempts I ended up with following configuration: Server 1 (S1): web hosting with simple web presentation https://www.rippled.eu Server 2 (S2): with rippled validator running CentOS with webserver running and serving subdomain https://validator.rippled.eu I edited apache ssl configuration file (ssl.conf) with these parameters: ServerName validator.rippled.eu SSLCertificateFile /.../validator.rippled.eu/cert.pem SSLCertificateKeyFile /.../validator.rippled.eu/privkey.pem SSLCertificateChainFile /.../validator.rippled.eu/chain.pem Both servers has its own Let's Encrypt certificate (S1 *.rippled.eu, S2 validator.ripppled.eu). Certificates were generated using Certbot on S2. On S1 I uploaded thru administration control panel of my webhosting service. Web browsers displays that certificates are valid. S1 has DNS A record (validator.rippled.eu and *.validator.rippled.eu pointing to public IP of S2) In verification process I'm running following command: "docker run --rm -it -v /keystore/:/keystore/ -p 80:80 xrptipbot/verify-rippledvalidator" Next listing is as folows: So I ran next command: docker exec rippledvalidator /keystore/finish_signing In final step I inserted requested data into Google Docs "XRP Ledger Validator Domain Verification" document Email: my email Domain: validator.rippled.eu Validator public key: nHBmJuwMPRh2mLrYhUdFHNKrZ3cwXEkiGAKXESM4mDvQKMF8WAp7 SSL Signature: 512B long hash Domain Signature: 128B long hash Everytime I tried, I received email with following message: Could someone point me where I'm making mistake, what's wrong with my certificate or verification process? Why is verification process missing my certificate? Am I missing something in apache configuration files (https.conf, ssl.conf) or rippled config file (rippled.cfg)? I'll be glad for every suggestion or help. Thank you.
  9. ChainFront, an API-as-a-Service company that removes the complexity of using, building, and managing blockchain wallets while maintaining enterprise-grade security, today announced the launch of Ripple and Ethereum integration to the ChainFront API platform. Now, developers creating applications built on the Ethereum or XRP Ledger blockchains can eliminate the need for end-users to manage their own security and bank. https://www.marketwatch.com/press-release/chainfront-announces-support-for-ripple-and-ethereum-2019-02-15?siteid=nbkh
  10. Version 1.2.0 also lowers the threshold for network participants involved in signing transactions. The MultiSignReserve amendment allows owners of signer lists for authorization method Multisign to participate with a reserve of just 5 XRP, down from the previous 15–50 XRP. https://www.coindesk.com/latest-xrp-ledger-release-boosts-censorship-resistance-and-more
  11. After the exciting news today, I was looking around on the ledger for tx's that might relate to xRapid. I couldn't find anything but have might found something else... According to jbjnr's post r3epSojEkn6pFRwjxkFjwJLPAxC8Hj9ZTK is one of the xrp sales wallets. On 31 Jan 1,2M USD.Bitstamp was sent out to rpQhAu8n7WwwNPFeqXPDVZyNx8ShAQrYZU There are several tx's for that wallet but this is one mentions Travel Rule, containing most probably hashed info about: https://developers.ripple.com/become-an-xrp-ledger-gateway.html#travel-rule
  12. Hello all. I apologize in advance if this question is in the wrong place or repetitive...I'm new and, frankly, not really sure where to put this question in the context of the available topics. (I created this topic in Marketplace awhile ago and it didn't get any replies...maybe the wrong place to post it?) So I've experimented by buying a basket of IOU's representing different currencies and even bitcoin by using https://www.theworldexchange.net ledger interface, and now I have them just sitting in my XRP wallet. So I understand obviously how to send XRP from wallets to exchanges and such, that's simple...but I don't see any option for these IOU's. I see each has its' own unique address that I assume I could send to, and I guess that's another question. Exchanges: Which ones support and will redeem IOU's representing Dollars, Yen or Bitcoin for example? How can I send these IOU's properly from wallet to wallet? How will I know what addresses to use? How will I know they will be "honored" by the exchange? Is there anything special I need to do with the destination tag or invoice ID? If I send real bitcoin to an IOU address, or IOU Bitcoin to a real address, will the ledger understand what to do, or would that get me screwed? (Not that I want to use Bitcoin, but this is for science.) If the question is repetitive I hope you'll be gentle with me and guide me to the proper resources. Thanks in advance!
  13. Hello all. I apologize in advance if this question is in the wrong place or repetitive...I'm new and, frankly, not really sure where to put this question in the context of the available topics. So I've experimented by buying a basket of IOU's representing different currencies and even bitcoin by using https://www.theworldexchange.net ledger interface, and now I have them just sitting in my XRP wallet. So I understand obviously how to send XRP from wallets to exchanges and such, that's simple...but I don't see any option for these IOU's. I see each has its' own unique address that I assume I could send to, and I guess that's another question. Exchanges: Which ones support and will redeem IOU's representing Dollars, Yen or Bitcoin for example? How can I send these IOU's properly from wallet to wallet? How will I know what addresses to use? How will I know they will be "honored" by the exchange? Is there anything special I need to do with the destination tag or invoice ID? If I send real bitcoin to an IOU address, will the ledger understand what to do, or would that get me screwed? (Not that I want to use Bitcoin, but this is for science.) If the question is repetitive I hope you'll be gentle with me and guide me to the proper resources. Thanks in advance!
  14. Recently, i was talking(more likely just had few comments replies) with some blockchain experts in Korea via tech community and he mentioned that ripple blockchain is specially limited for its use case as now, bridging currencies and solving international remittance problem. Well... in fact all blockchain is made for their use cases, what developers intended to do with blockchain. But later it just raised me a question "is ripple as blockchain can be expandable to other functionalities?" First i thought it is possible as "sbi ripple asia" is leading consortium in japan to brining blockchain tech to security brokerage. But as far as i remember, no one confirms this blockchain is ripple blockchain(XRPL) that i know of.. or building new blockchain but having some advice from ripple. And i started to dig up xrpchat and some of noticeable finding are as below Hodor once mentioned, he wrote down all use cases with RCL(XRPL) can do. And Joelkatz once mentioned "people are welcome to use XRP for any application they would like" So is that meaning anyone who has interest can build up any kind of things with XRPL such as what hodor mentioned on other thread, healthcare (what ibm does), real-estates(IBREA), and even storage (Sia, storj) streaming (livepeer) but just ripple as company is only focusing just one use case international remittance .. right? @JoelKatz @nikb @Hodor I want to show answer from one of the ripple developer that they do not limit XRPL as What Korean blockchain expert claims.... Thank you in advance.
  15. There was a brilliant explanation on Twitter about how to use XRP as a bridge currency. All he says just works already and can be used for so many amazing things. Anybody thinking this will not lead to anything should just go home. The bottom line is that transactions are atomic and nobody needs to know about XRP or even hold it when wanting to bridge as long as the market provides the necessary liquidity. To me personally this shows how superior XRPL is. See the tweet and the following. Spread the word folks.
  16. As Ripple progresses towards further decentralizing the XRP Ledger, we want to make server operators and members of the XRP Ledger community aware of a few upcoming changes to help ensure the reliability and stability of the network as it transitions to a distributed architecture with fully decentralized validators. https://ripple.com/dev-blog/decentralization-strategy-update/
  17. Hello everyone! As the title suggests, I am concerned with the storage methods of XRP. Recently, I have heard people mention trouble with the Jatchili client, as well as other wallets, when sending/retrieving XRP. I am very leery of installing a wallet on my WIN7 PC, as there are many vulnerabilities, some of which we are not even told about until years down the road. I have not completed the setup of my Linux Mint Cinnamon as an air-gapped computer is still not secure. Recently, we have been made aware of NSA malware, OutlawCountry, that was distributed by ShadowBrokers. I have two Ledger Nano S hardware wallets, and they confuse the crap out of me: if every wallet on the Nano is required to have it's own unique secret key, and each secret key requires it's own unique 24 word seed, how can the Ledger Nano retrieve ALL secret keys with it's OWN 24 word seed if your secret keys are not stored anywhere? The purpose of the hardware wallet was to secure my Secret keys ON THE DEVICE, not stored somewhere for the Ledger to retrieve. How is this possible? Another question: Does anyone know of any wallet that is being developed where the developer does not have access to your secret keys, only generating the keys on the device as it is connected to the XRPL? We all need a secure way to claim our XRP. If there are wallets/software developed for banks/MMs to use it as an asset in a secure way, then there should be for commercial use as well. I would imagine a Hardware wallet with a large storage capacity would suffice (allowing for the addition of other wallets in the future). Help with this would be appreciated! O-1
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