Zap crypto accelerator io

Last month, Bitcoin Lightning startup Strike announced it would be working with the world payment giant Visa. Now, another startup in the same vein, LastBit, which just launched its app in beta , will be going through the same Visa Fast Track program. This partnership will eventually make it possible for users to pay for items priced in U. LastBit founder Prashanth Balasubramanian told CoinDesk the company will also be releasing an app that works with euros in "a few weeks. LastBit's end goal is to allow users to make Lightning payments to pay for just about anything.



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5.3 Release Notes


Describes a process similar to the later [reid:fmcad] of using the official [ISA specification] of a processor directly as a reference model for processor validation as well as for documentation.

The architecture specification was subject to a strict review policy. This early paper about the system introduces a format that generalizes existing sparse formats such as CSR, CSC or DCSR; introduces iteration graphs for capturing the structure of the loop nest that will be generated; and the use of merge lattices for capturing the constraints on iteration due to use of addition or multiplication, etc.

About techniques for learning [sparse model]s either by learning a model and then making it sparse or by modifying how the initial model is learned or by using a sparse architecture for the model. Can be used with the [TensorFlow] lite model pruning library that learns sparse representations.

Language for expressing machine learning computations using stateful dataflow graphs increasing portability by avoiding leaky abstractions. Replaces an earlier model called DistBelief. An accelerator for sparse matrix-matrix multiplies that achieves And they can potentially avoid computing data that would only have been multiplied by zero. Introduced the [transformer model] and replacing the recurrent layers entirely with [attention][attention function] to improve efficiency.

Achieves efficiency and, hence, scaling by using a [mixture of experts] approach with thousands of experts and exploiting sparsity in the [gating network] where at most k experts are selected.

GShard enabled us to scale up multilingual neural machine translation [Transformer model] with Sparsely-Gated [Mixture of Experts] beyond billion parameters using automatic sharding.

We demonstrate that such a giant model can efficiently be trained on TPU v3 accelerators in 4 days to achieve far superior quality for translation from languages to English compared to the prior art. Observes that the [mixture of experts] approach suffers from problems in complexity, communication costs and training instabilities. This preserves model quality, reduces routing computation and performs better. Digital electronics is a myth: the underlying analog nature of digital electronics is revealed by overclocking, voltage droops, resonance and a host of other effects.

Designers and users find it useful to stress-test CPUs using [power viruses][power virus] that try to create high IPC load, thermal load, voltage noise, etc. Unlike radiation-induced failures that are transient, they are interested in more consistent and higher frequency failures that they observe in datacenters due to timing errors, manufacturing variation, degradation and end-of-life wearout and associated with increased transistor density and wider datapaths.

As a step towards making it easier to construct a semantics for all the languages found in the wild, this paper considers the common practice of having a small ish core language and a set of desugarings from the surface language.

Uses Angluin-style learning to synthesize a model of hardware cache eviction policies. Models are readable. Evaluated on a simulator to test what policies it can learn and also on x86 cores to learn L1, L2 and L3 policies and found two new eviction policies. Talks about the use of reduced TCB, encryption at rest and in storage, etc. When creating a safe interface to code in another language, you want to encode the type system of the other language.

This paper describes a general encoding of subtyping hierarchies in the Hindley-Milner type system using [phantom types] and generalizes [reppy:att], [finne:icfp] and [blume:babel]. This gives a zero-overhead, safe mechanism to create data structures with sharing and cycles like a doubly linked list. Also describes a use-after-free checker and a double-lock checker for checking unsafe code.

This is an empirical study of unsafe Rust code. It differs from [evans:icse] by doing a more detailed measurement and analysis of the different reasons that unsafe code is being used and that they consider direct uses of unsafe annotations, not indirect uses via dependencies.

It is also based on code that is 18 months younger. Empirical study of unsafe annotations in open source Rust crates. Uses a tool to count different forms of unsafe annotation in the crates and the transitive dependencies of safe functions on other functions that contain unsafe annotations.

The important code i. QSYM significantly improves the performance of [concolic execution] of binaries to support [hybrid testing] a form of [fuzz testing]. The key ideas based on a detailed examination of all the usual design choices and their problems are. The result is an average speedup relative to KLEE of 12 and up to 3 orders of magnitude and a consequent improvement in coverage and bug discovery.

The big problem with dynamic [symbolic execution] is the exponential path explosion resulting from visiting each path independently. One approach is [state merging] e. Performs [differential testing] using the [KLEE][KLEE verifier] [symbolic execution] tool extended with [symbolic memory] and [lazy initialization] to enable under-constrained symbolic execution see [ramos:sec].

This paper moves beyond [berdine:aplas] to support reasoning about loops by augmenting [symbolic execution] with [abstract interpretation]. This paper is so much more than the paper title suggests. From the paper title, I was expecting something about parametricity and non-interference and the conclusion does say.

Introduced the idea of [lazy initialization] to allow pointer-manipulating programs to be verified using [symbolic execution] without having to construct a data structure for the program to symbolically execute. A key part of its design is the generation of function summaries using [lazy initialization] to infer the precondition of functions.

A problem that it shares with successors such as [engler:issta] and [ramos:sec] is its handling of pointer aliases: the function summaries generated are always trees, not DAGs. Avoids the path explosion of application level symbolic execution by analyzing functions in isolation checking for crashes and also using three checkers for memory leaks, uninitialized data and unsanitized use of user input.

On the others, they do not exhaust all execution paths but achieve high coverage. Extends the [EXE verifier] with support for under-constrained variables. Any errors detected by symbolic execution are only reported if the path condition does not depend on the value of an under-constrained variable. For example, if a pointer is dereferenced, we add a constraint that the pointer is non-null and a new under-constrained variable is created for the value read.

This is a good intro to the Rust language for PL researchers. It gives the motivation, a description of the challenges of building a high performance web browser, an intro to the ownership and concurrency features of Rust, closures, algebraic data types, a sketch of compilation via monomorphization including across package boundaries , FFI, macros and plugins. The goal of this paper is to improve on the use of interoperability testing to test the QUIC specification and implementations.

They found bugs in implementations and a potential DoS in the protocol. Some parts of the informally specified standard were hard to formalize effectively. They focus on safety but discuss liveness. Argues that counterexamples from software model checking SMC should take the form of executable mock environments that can be linked with the code under analysis CUA.

These mock environments are a simple form of [test double] that implement each external function with a function that returns a sequence of values to steer the CUA towards failure. Aims to define [memory safety] in terms of reasoning principles it enables instead of the errors that memory unsafety manifests. This paper argues that papers with a small number of authors cause more disruption introduce new ideas than those by large teams while papers by large teams tend to develop existing typically recent ideas.

Interestingly, authors behaviour changes depending on the team size. It uses an extensive data analysis across many different fields and across papers, patents and software to argue each point: the main argument is in the highly recommended first 6 pages but the remaining 47 pages have lots of graphs, explanation of the methodology, etc.

This paper provides a different solution to the problem in [coppa:ase]: how to handle symbolic addresses during symbolic execution. Many symbolic execution tools deal with this by selectively concretizing addresses used for reads, for writes or for both — leading to lower coverage of the program i.

Swarm verification uses parallelism and most importantly diversity to hunt for violations using model checkers. The goal is to find violations within some limited time budget, not to prove absence of violations using an exhaustive search.

This paper adapts the ideas of [swarm verification] [holzmann:ieeetse] in a testing context. Like [swarm verification], the idea is to use a diverse range of configurations to get better coverage than you would get with a single configuration even if it is carefully chosen. Swarm testing makes better use of a fixed time budget and reduces the effort needed to tune testing configurations.

This adds a form of lazy evaluation to symbolic execution: deferring execution of code until the analysis actually needs it. Key insights: a path can be encoded by a concrete test input; a set of paths can be encoded by a pair of paths all paths lexicographically between the two paths. Test ranges from [siddiqui:oopsla] compactly represent sets of program paths. Classic [symbolic execution] suffers from path explosions due to forking the state on every conditional branch.

This paper explores how to selectively merge states to push symbolic execution further along the [symbolic evaluation] spectrum while stopping short of merging states at every join point as in [bounded model checking]. By not merging at every join point, they aim to retain the benefits of high levels of concrete execution, simpler solver queries and flexibility of search strategies to explore the most interesting paths first.

Writing specifications is hard. This paper deals with two particular problems and argues that they can be tackled with the same analysis. This paper looks at how to find and fix verification performance bugs encountered with KLEE; builds a bug corpus for the evaluation; and categorizes different kinds of problem.

Like [galea:arxiv] which is also worth a read , this paper looks at how to find verification bottlenecks in symbolic evaluation. They propose a symbolic profiling approach that works for any symbolic evaluator symbolic executor, BMC or hybrids and, using a simple but effective metric to rank hotspots, is effective at highlighting the root cause of the problem.

This frequently referred to article was published just after the end of the 2nd World War by Vannevar Bush the Director of the Office of Scientific Research and Development. It is a swords-to-ploughshares best known for the Memex concept that influenced creators of hypertext, etc. Modern code review is. This paper is an update on their earlier paper [sadowski:icse] that brings the story up to date and fills in some of the background stories about previous failures that informed their later approach and some of the successes.

Despite the overlap, it is worth reading both of them because the two articles have a different emphasis and the overlap is not too severe. It consists of three phases:. This paper describes the experience of deploying a static analysis infrastructure at Google. Most importantly though, it had to be accepted by developers if it was going to provide any benefit. How can you evaluate the usability of web APIs? They find that three particular APIs are especially error prone.

Spanner is a scalable, globally-distributed, temporal database that shards data across many [Paxos] instances. It features automatic failover, resharding and migration. Although not explicitly stated, it seems to be a replacement for Bigtable [chang:tocs] and Megastore. One of the early clients was to support F1: an ads database. Both a form of [auto-active verifier][auto-active verification] although that term was not used by the author for another 10 years.

QuickCheck takes a test-based approach to formal verification. You write universally-quantified properties and QuickCheck uses random testing [fuzz testing] to check whether the property holds. QuickCheck was originally written for Haskell but various people have since implemented it for around 40 different languages. Parameterized unit tests are a form of [property-based testing] that generalizes traditional unit tests.



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Token Type Ethereum (%, total) Waves (%, tokens['Ethereum Classic'] = 'safe-crypto.me'; tokens['NuBits'].

Crypto token platforms

For the past few months, there has been an increasing adoption and interest in cryptocurrencies and the industry as a whole. As we are moving to a new digital era and economy, crypto and blockchain will play a big role. In the midst of a bull run you can make money with almost every crypto, even scams. But what matters most is the long term success of a project and projects with good fundamentals. In the short term, the market is mainly driven by hype and speculation, but there are also many projects that are undervalued and don't have the attention they should have, for different reasons. It's time to have a look at some of them, starting from the ones with the lowest market cap. Blockzero is here to bring the next round of innovations and push DeFi one step further. Its mission is to build, launch, and scale the next generation of Web3 startups. The vision for Blockzero is to become the Y Combinator of the decentralized world.


FreeBSD Manual Pages

zap crypto accelerator io

All coins and cryptocurrency tokens supported by Prokey. Bitcoin BTC. Ethereum ETH. Dogecoin DOGE.

Latitud dissolves barriers and borders for inevitable founders, funders and pioneers in the region to shape the next generation of top tech companies in the world. Product Marketing Manager at Twilio , co-founder of Pristine.

IoT Projects

If you want to contribute, please read this. See also Rust — Production organizations running Rust in production. See also crates matching keyword 'emulator'. See also Games Made With Piston. See also A comparison of operating systems written in Rust.


What is a "Stuck" transaction? How are they caused?

James Bowman posts about successfully automating reading the status of a chicken coop. It uses a Raspberry Pi Pico doing perform sensing, with a MHz Lora module to transmit the status back to the base. How are you doing? Umwelt-Caompus Birkenfeld has been building up a large number of projects revolving around CO2 measuring devices for classrooms. Building a water quality monitoring system for a hot tub. Matter is a new initiative of the Connectivity Standards Alliance and developed through collaboration amongst all the leaders of the IoT industry. Espressif has developed a series of 6 blog posts that detail the protocol. The Amazon Ring and Amazon Tile devices operate on the same bandwidth and connect to this network.

The latest information about Adafruit IO. He added an ATECCA crypto co-processor board to provide end-to-end encryption when opening the door to his.

This is the 15th backport release in the Octopus series. We recommend all users update to this release. A new ceph-erasure-code-tool has been added to help manually recover an object from a damaged PG.


This is a listing of all packages available from the core tap via the Homebrew package manager for macOS and Linux. Homebrew Formulae. ZIP, and. GZ files advancemame 3. Zero-Configuration broot 1.

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This list is maintained as part of the Disclose. Have a suggestion for an addition, removal, or change? Open a Pull Request to disclose on Github. Special thanks to all contributors. Researcher Portal Customer Portal.

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