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Me and my partner are currently working on a purse.io v2 project. We have hired some web developers to create a platform similar to purse.io.
Whilst the website is being built we will be running a telegram purse.io service.
1.Shoppers PM us a link to their Wishlist or the product they want bought along with the discount they would like (up to 33% discount). Wishlist is better as that way your address can be protected. The earner will then need to send the bitcoins to our secure escrow wallet.
3.The earner will then be provided with the Wishlist/product link. When the earner has made the order they will need to provide the tracking link along with a screenshot of the order confirmation. The order will then be removed from the telegram channel.
5.We will ask the buyer to confirm the product has been delivered. We will then release the bitcoins to the buyer. The buyer will be given 24 hours to respond. If they do not the buyer will be credited the bitcoins.
We will charge a flat 5% fee. 2% for any orders with discounts below 15%.
The earned amount will be the bitcoin amount in our telegram channel. In the event the bitcoin prices goes down by 10% before the order is fulfilled by an earner the buyer will need to send more bitcoin to cover. If the price goes up by 10% the buyer will be credited the additional bitcoin.
If anyone is interested join the telegram channel here: https://t.me/Purse_V2.
Our telegram is: https://t.me/PurseV2
Whilst the website is being developed we will be working on ways to automate the telegram service.
Please give us 10-15 minutes to reply. We will be working from 3PM UTC – 5AM UTC.
We are earners ourselves so we can fulfil buyer’s orders.
We welcome suggestions/comments feel free to drop it below.
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Binance Rolls Out Bitcoin Options but Not Without Its Critics [Opinion]
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https://twitter.com/PRIViLEDGE_EU
Check out the work packages (WP1-4) with some great info about Cardano network and what it can do beyond "just payments"... A lot of docs are co-written by IOHK (https://iohk.io/en/blog/posts/page-1/) and researchers from University of Edinburgh (http://www.ed.ac.uk/) . You'll find info about the side-channels, how Cardano works, the implementations and explanations of all Ouroboros protocols, online voting, EUTXO, privacy features, etc.
Please note that some info might not be 100% docs from end of 2018 and for the latest info on Ouroboros and Hydra go to IOHK blog https://iohk.io/en/blog/posts/page-1/
https://priviledge-project.eu/publications/deliverables
WP1
WP2.1
WP3.1 (the whole doc is interesting!)
Ouroboros Genesis: In a follow-up work, Badertscher et al. [BGK+18] propose “Ouroboros Genesis”. This work provides a blockchain protocols with a novel chain selection rule. The rule enables new or offline parties to safely (re-)join and bootstrap their blockchain from the genesis block without any trusted advice (such as check points) or assumptions regarding past availability. Indeed such a blockchain protocol can “bootstrap from genesis”. Moreover the authors prove that the proposed protocol is secure in the Global UC model against a fully adaptive adversary controlling less than half of the total stake. The model considered in [BGK+18] allows adversarial scheduling of messages in a network with delays and captures the dynamic availability of participants in the worst case. This protocol is effectively independent of both the maximum network delay and the minimum level of availability, both of which are run-time parameters.
WP4.1 (Sections 2.3, 3 and 5, a must read)
With this document we provide a global picture of the progress of the research done to date in designing a detailed architecture for the Cardano update system (use case 4) and for the toolkit for anonymous authentication.
Sections 2.3
Cardano is a blockchain platform implemented by IOHK and underlying the Ada cryptocurrency. Cardano is running on top of the Ouroboros proof-of-stake protocol. Due to the active development of both the protoco land the whole platform, Cardano would benefit from a safe and secure decentralized software update system. In other words, a system that will ensure that: a) any honest stakeholder will always be able to submit an update proposal to be voted by the stakeholders community, b) it will prevent an update proposal that is not approved by the honest majority to be applied and c) it will provide guarantees for the authenticity of the downloaded software.
Consensus: Ouroboros Family of Proof-of-Stake Protocols
In this section we sketch the proof-of-stake protocols Ouroboros [KRDO17] and Ouroboros Praos [DGKR17]. The former is currently underlying the deployed Cardano blockchain, while the latter is foreseen to ultimately replace it. To avoid confusion, in the following we refer to the Ouroboros protocol [KRDO17] as Ouroboros Classic.
Ouroboros Classic Description.
The protocol operates (and was analyzed) in a synchronous model that splits the time continuum into a sequence of consecutive, non-overlapping intervals called slots(in Cardano, each slot is20seconds long).It is assumed that all parties are equipped with synchronized clocks that tell them the index of the current slot,and all messages are delivered within the next slot.In each slot, each of the parties can determine whether it qualifies as a so-called slot leader for this slot.The event of a particular party becoming a slot leader occurs with a probability proportional to the stake controlled by that party, is independent for two different slots, and is determined by a public, deterministic computation from the stake distribution and so-called epoch randomness(we will discuss shortly where this randomness comes from) in such a way that for each slot, exactly one leader is elected.If a party is elected to act as a slot leader for the current slot, it is allowed to create, sign, and broadcast a block (containing transactions that move stake among stakeholders). Parties participating in the protocol are collecting such valid blocks and always update their current state to reflect the longest chain they have seen so far that did not deviate from their previous state by too many blocks. As in the case of Bitcoin [Nak08], if there are multiple candidate chains, the slot leader will always choose the longest one to attach a new block.Multiple slots are collected into epochs, each of which contains R∈N slots (in Cardano, R= 21600). Each epoch is indexed by an index j∈N. During an epoch j, the stake distribution that is used for slot leader election corresponds to the distribution recorded in the ledger up to a particular slot of epoch j−1, chosen in a way that guarantees that by the end of epoch j−1, there is consensus on the chain up to this slot. Additionally, the epoch randomness for epoch j is derived during the epoch j−1 via a guaranteed-output delivery coin tossing protocol SCRAPE [CD17] that is executed by the stakeholders.
Security. Ouroboros Classic was shown by Kiayias et al. [KRDO17] to achieve the common prefix, chain growth, and chain quality properties, proposed as security desiderata for blockchain protocols by Garay et al.[GKL15]. It is well-known that these properties imply both persistence and liveness of the resulting ledger.These properties are achieved by Ouroboros under the following assumptions:
Ouroboros Praos
The Ouroboros Praos protocol [DGKR17], despite sharing the basic structure with Ouroboros Classic, differs from it in several significant points; we now outline these differences.The slot leaders are elected differently in Praos: Namely, each party for each slot evaluates a verifiable random function (VRF, [DY05]) using the secret key associated with their stake, and providing as inputs to the VRF both the slot index and the epoch randomness. If the VRF output is below a certain threshold that depends on the party’s stake, then the party is an eligible slot leader for that slot, with the same consequences as in Ouroboros Classic. Each leader then includes into the block it creates also the VRF output and a proof of its validity to certify its eligibility to act as a slot leader. The probability of becoming a slot leader is again roughly proportional to the amount of stake the party controls, however now it is independent for each slot and each party,as it is evaluated locally by each stakeholder for itself. This local nature of the leader election implies that there will inevitably be some slots with no, or several, slot leaders.In each epoch j, the stake distribution that is used in Praos for slot leader election corresponds to the distribution recorded in the ledger up to the last block of epoch j−2. Additionally, the epoch randomness for epoch j is derived as a hash of additional VRF-values that were included into blocks from the first two thirds of epoch j−1 for this purpose by the respective slot leaders.8Stake shift is a change in the stake distribution among the participants of the protocol. Finally, the protocol uses key-evolving signatures for block signing, and in each slot the honest parties are mandated to update their private key, making the system resilient to even adaptive corruptions.Security.
Ouroboros Praos was shown by David et al. [DGKR17] to achieve both persistence and liveness under weaker assumptions than Ouroboros Classic, namely:
Sections 3
Cardano is an actively developed system, and as such will clearly need updates and improvements when new requirements arise, bugs are discovered, standards or protocols change, or new technologies become relevant. Traditionally, such software updates have been handled in an ad-hoc, centralized manner: Somebody, often a trusted authority, or the original author of the software, provides a new version of the software, and users download and install it from that authority’s website. However, this approach is clearly not decentralized, and hence jeopardizes the decentralized nature of the whole system: In a decentralized software update mechanism,proposed updates can be submitted by anyone (just like anyone can potentially create a transaction in blockchain).The decision of which update proposal will be applied and which won’t, is taken collectively by the community and not centrally. Thus, the road-map of the system is decided jointly. Moreover, there is no central code repository, nor there is some main software maintainer, who decides on the code. All versions of the code are distributed and only local copies exist, in the same manner that the ledger of transactions is distributed in blockchain. The decentralized software update system must reach a consensus, as to what version is the curren tone (main branch) and which code branch will be merged into main. Finally, the decentralized software update system guarantees the authenticity of the downloaded software, without the need to have some central authority to sign the code, in order to be trusted.At present, there is no standard way to propose updates, reach consensus on such proposals and then—once consensus has been reached—distribute updates securely to all participants. There is no way to guard against malicious proposals on the one hand, while on the other hand enabling critical security updates or bug-fixes to be distributed in swiftly.
A week ago, Microsoft discharged the Windows 10 Fall Makers Update for PCs and Tablets with a ton of new highlights. Aside from new highlights and significant upgrades, Microsoft has likewise included the counter ransomware include with the Fall Makers Update to Windows 10 working framework, implying that you would now be able to quit agonizing over the ransomware assaults in the event that you are utilizing the most recent rendition of Windows 10.
Ransomware is a vindictive programming that scrambles the client's information and takes steps to erase or distribute the casualty's information. To recover the information, the clients are required to pay a payment (cash) in bitcoins and once the payment is paid, the aggressor should discharge the information back to the clients. Recently, another ransomware called Awful Bunny was spreading around the Europe influencing the old PCs however you would now be able to spare your information from getting scrambled with Windows 10's new element.
The Fall Makers Update includes a Controlled Envelope Access highlight that lets you obstruct the entrance to the framework organizers and extra envelopes from unapproved sources, implying that the aggressor won't have the option to scramble your information.
Windows 10 Controlled Envelope Access highlight is handicapped of course, in any case, it tends to be empowered from the Windows Safeguard Security Center. It takes under 5 minutes to empower the component and once it has been enacted, Windows will deal with rest.
Steps to empower Against Ransomware highlight in Windows 10
The secured envelopes choice lets you add extra organizers to against ransomware encryption framework too. When it is empowered, Windows will make sure about the framework envelopes and in the event that you wish to include extra organizers, you can utilize the secured organizers setting.
Windows 10 Enemy of Ransomware highlight fills in true to form, Windows will have the option to spare your information from the assailants however it can't forestall the ransomware assault. At the hour of ransomware assaults, the payoff notes will even now be shown and the framework will be bolted also, be that as it may, the component will obstruct the pernicious programming from encoding documents situated in secured organizers.
Latest Bitcoin News:
Bitcoins killer app Purse is shutting down, open to acquisition opportunities
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The latest Bitcoin news has been sourced from the CoinSalad.com Bitcoin Price and News Events page. CoinSalad is a web service that provides real-time Bitcoin market info, charts, data and tools. Follow us on Twitter @CoinSalad.
Any one know of a good guide for someone buying bitcoin for the first time? Anonymously via tails
Bitcoin lightning network is regarded as a perfect solution to the scalability issue of the #bitcoin.
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