blockchain glossary

The heat of blockchain technology is obvious to everyone inside and outside the coin circle, but we don't know how to explain it when we talk about how much the technology is burning. In fact, this is not very difficult, if we start from the job market changes in this field, we can quickly understand how the blockchain technology is really fire. The go language is primarily used as a server-side developmen

mode, one is connected to the local private chain for debugging. 1. Local Virtual Machine Debug mode Local virtual machine debugging, is not connected to any one node, in memory virtual out of an Ethereum node for debugging, the advantage is fast, simple configuration, the disadvantage is because it is only virtual debugging, may finally put on the real blockchain node to run the smart contract will be different from the expected results. First, in t

Blockchain Enthusiast (qq:53016353) The change mechanism of the cottage currency has been a bit confusing, obviously only to one address sent the cottage currency why blockchain above the display is sometimes 1 addresses to multiple addresses, sometimes multiple addresses to 1 addresses, and sometimes display multiple addresses to multiple addresses. Why the Shanzhai senior users to remind you that when the

Blockchain Enthusiast (qq:53016353) Request payment before requesting payment, the program needs to generate a Bitcoin address first or from another program, such as Bitcoin Core, to obtain an address. The details of the Bitcoin address are described in the transaction section, and in this section there are two important reasons why you should avoid using the same Bitcoin address multiple times-and the third reason is related to the payment request.U

At present, the mobile Internet, the blockchain more and more, in the blockchain security, a lot of the existence of the website vulnerability, the recharge of the blockchain and withdraw, the membership account of the storage of XSS theft vulnerability, account security, and so on these blockchain loopholes, we sine s

Shang ·2014/11/27 19:10 Editor's note: colleague Joel Monegro, a well-known investor Fred Wilson, recently attended the New York Bitcoin workshop Hackbit gathering, during which they discussed the impact of the Bitcoin mindset on the world of the next decade, which is contributing to the emergence of a new internet world structure. Not long ago, we also reported Fred Wilson's idea of "Color a Bitcoin", we can use the advantages of Bitcoin to transform the original industry. Now, Joel Monegro an

"If small and medium-sized companies are able to put their assets on the chain, then they have a chance." If not, the big company has a better edge. "Sogou CEO Wang Xiaochuan recently held a blockchain industry conference at" Koshien ". Asset chain, refers to the assets in the equity or securitization, its registration, transaction, settlement and other links are completed on the blockchain, the chain by t

',earnBigint (20) not null default '0 ',created_atTimestamp null default null,updated_atTimestamp null default null,Unique keypuid_hour(puid,hour),Keyhour(hour)) Engine = InnoDB default charset = utf8; Drop table if existsstats_workers_day;Create Tablestats_workers_day(puidINT (11) not null,worker_idBigint (20) not null,dayINT (11) not null,share_acceptBigint (20) not null default '0 ',share_rejectBigint (20) not null default '0 ',reject_rateDouble not null default '0 ',scoreDecimal (35,25) not

initqueue (linkqueue * q ); // construct status destroyqueue (linkqueue * q); // destroy status clearqueue (linkqueue * q); // clear status queueempty (linkqueue Q); // if it is null, true is returned, otherwise, return falsestatus queuelength (linkqueue Q); // return the queue length status gethead (linkqueue Q, qelemtype * E); // return the queue Header element status enqueue (linkqueue * Q, qelemtype E); // insert element e into the new team end element status dequeue (linkqueue * q, qelemty

() ???????? Lastjobsendtime + kminingnotifyinterval_ ???? {???????? Sharedptr. Rbegin ()->second;???????? Sendminingnotify (Exjob);????}}Jobrepository::jobrepository (const char kafkabrokers,???? Const string filelastnotifytime,???? Server Server):Running(true),Kafkaconsumer(kafkabrokers, Kafka_topic_stratumJOB, 0/patition/),Server(server), Filelastnotifytime(Filelastnotifytime),Kmaxjobslifetime(300),Kminingnotifyinterval(+),//Todo:make as config argLastjobsendtime(0){???? ASSERT (Kminingnotify

If the chunk is synchronized to a node each time, it can be manually added as a static node, which can greatly improve the efficiency of synchronizationHere to apply a 79619646 of the private chain, thank you, I will not have to create a virtual machine to do the static nodeFunction default everyone has installed mist, it is a set of WEB3 and wallet tools, the default will also have Geth installation, of course, can also use the above address Geth installation methodThe creation of a document to

PHP is really a headache, you can't understand it, you can't get it from the boss. you can help me to see what PHP is for the blockchain network code. it's really a headache, you can't understand it, you can't get it from the boss. Let me see what the code is. , These CMS are actually server-oriented. a single file writes some code, and there are fewer. a single file sets a variable. All the indexes on the home page are PHP programs, and an HTML c

, mspid string) Error // load the local mspfunc getlocalmsp () MSP from the specified directory. MSP // retrieve MSP. newbccspmsp () Create bccspmsp instance func getlocalsigningidentityorpanic () MSP. signingidentity // getlocalmsp (). getdefaultsigningidentity () // code in MSP/MGMT. go Func loadlocalmsp (DIR string, bccspconfig * factory. factoryopts, mspid string) error code: Conf, err: = MSP. getlocalmspconfig (Dir, bccspconfig, mspid) // obtain the local MSP configuration and write it to M

process to write dead or randomly generated parameters into the JSON file, that is, the above fileCreate the core code of the account: (Accounts.keystore.keystore_passphrase.go)The Encryptkey method inFuncencryptkey (Key key,authstring,scryptn,scryptpint) ([]byte,error)Where key is an encrypted account, including ID, public private key, addressAuth is the password entered by the userSCRYPTN, is the n in the scrypt algorithmP in the Scryptp,scrypt algorithmDerivedkey, err: = Scrypt. Key (Autharr

Brother even blockchain tutorial Open-ethereum-pool Ethereum mine Pool source Analysis Unlocker moduleOpen-ethereum-pool Ethereum Mine Pool-unlocker moduleUnlocker module ConfigurationJson"Unlocker": {????" Enabled ": false,????" Poolfee ": 1.0,????" Poolfeeaddress ":" ",????" Donate ": True,????" Depth ": 120,????" Immaturedepth ": 20,????" Keeptxfees ": false,????" Interval ":" 10m ",????" Daemon ":" http://127.0.0.1:8545 ",????" Timeout ":" 10s "},

https://bitcoin.org/en/https://www.ethereum.org/https://www.rsk.co/http://www.oraclize.it/Https://lisk.io/downloadhttps://www.blockstream.com/http://coloredcoins.org/https://counterparty.io/Http://cn.hyperledger.org/projects/fabrichttps://www.openchain.org/Https://github.com/IBM-Blockchain/marbles?spm=a2c4e.11153940.blogcont60443.9.4e5db278dvAFRTHttps://github.com/openchain/openchain?spm=a2c4e.11153940.blogcont60443.11.4e5db278dvAFRTHttps://github.com

block chain/distributed ledger technology vendors and products/projectsVendors and products/projects of Blockchain/distributed Ledger Technologies main programming language Major programming Languages source code repository source repositories IBM Openblockchain (OBC) Go (Golang) https://github.com/openblockchain/ Ethereum (ether Square) C + +, go (Golang) Https://github.com/ethereum Https://github.com/e

Since the last few weeks to publish the blockchain exam, many people ask Elwin standard answer, I here to provide my answer, provide reference for everyone. If you have different answers, please leave a message or tweet to me (Weibo.com/elwingao) for discussion. level Two exam reference answer First, single choice1D 2A 3 a 4C 5B 6BSecond, non-problem1, N2, N3, Y4, N5, N6, Y7, N8, N9, N10, NIii. Multiple choice of topics1, A,b,d2, B,c3, A,b,d4, A,

collection of name and LINKS,IPFS. For small files ( For large files, it is represented as a collection of file blocks ( Directory structure: A directory is a IPFs object with no data, and its links to the files and directories it contains. IPFs can represent the data structure that Git uses, and Git commits object. The main feature of Commit object is that he has one or more links called ' parent0 ' and ' parent1 ' (these links point to the previous version), and an object (which becomes

Blockchain Enthusiast (qq:53016353) The previous analysis program looked at the details of the analysis, so without the concept of framework, took two days to analyze the Hyperledger fabric architecture design, analysis of the program does not reference any information, such as error welcome correction, common progress. The author has the following questions before the detailed analysis procedure:1) How the CLI (command line) client sends a command to