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A new method to boost the speed of online databases

MIT researchers used machine learning to build better hash functions, which are a key element in most online databases. Their work could lead to faster and more efficient database searches in some situations. ....

United States , Andreas Kipf , Tim Kraska , Michael Mitzenmacher , Kapil Vaidya , Ibrahim Sabek , Dominick Horn , Artificial Intelligence Laboratory , Data Systems Group Of The Computer Science , United States Air Force Artificial Intelligence Accelerator , International Conference On Very Large Databases , National Science Foundation , Technical University Of Munich , Harvard Johna Paulson School Of Engineering , United States Air Force Research Laboratory , Zai Lab , Systems Group , Computer Science , International Conference , Very Large Databases , Technical University , Harvard John , Applied Sciences , Data Systems , United States Air Force Artificial Intelligence , Kapil Vaidya ,

"VRBC: A Verifiable Redactable Blockchain with Efficient Query and Inte" by Guohua Tian, Jianghong Wei et al.

Driven by various legal obligations and service requirements, the redactable blockchain was introduced to balance the modifiability and immutability of blockchain technology. However, such a blockchain inevitably generates one or even more acceptable versions for the same block data, enabling malicious full nodes to deceive light/new nodes with old data, and even disrupt the consistency of the blockchain ledger. In this paper, we introduce the concept of verifiable redactable blockchain (VRBC) to provide efficient validity verification for on-chain data. To this end, we design a novel authentication data structure, called blockchain authentication tree (BAT), which employs a chameleon hash function and aggregatable vector commitment to bind continuously-appended blocks. Based on this, we propose an efficient VRBC scheme supporting integrity auditing, which not only allows the light nodes to query and validate on-chain data, but also enables new nodes to check the integrity of the block ....

Lockchain Authentication Tree , Hameleon Hash Function , Data Structures , Hash Functions , Integrity Auditing , Threat Modeling , Erifiable Redactable Blockchain ,

The Crash of Bitcoin: A Warning to the Optimists

The Crypto frenzy entered a new chapter in as many of the world’s popular cryptocurrencies tumbled in the 3rd week of May. While ....

United States , Argo Blockchain , Elon Musk , Michael Saylor , Peter Wall , Bitcoina Bitcoin , Bitcoin Mining Council , Galaxy Digital Holdings , Organisation Of The Petroleum Exporting Countries , Bitcoin Mining , Bitcoin Protocol , Hash Functions , Cambridge Bitcoin Electricity Consumption Index , North American Bitcoin , Bitcoin Miners , Riot Blockchain , Petroleum Exporting Countries , Clean Bitcoin , Dirty Bitcoin , Mining Bitcoin , Leaderless Model , ஒன்றுபட்டது மாநிலங்களில் , அர்கோ ப்ளாக்சைன் , மைக்கேல் சாய்லோர் , பீட்டர் சுவர் , விண்மீன் டிஜிட்டல் ஹோல்டிங்ஸ் ,

The Bitcoin Mining Council: Centralization in the Crypto-world?

The tremors in the Bitcoin market are all the ears since the market crash. The famed cryptocurrency staggered from the April highs to almost ....

United States , Argo Blockchain , Elon Musk , Michael Saylor , Peter Wall , Bitcoina Bitcoin , Bitcoin Mining Council , Galaxy Digital Holdings , Organisation Of The Petroleum Exporting Countries , Bitcoin Mining , Bitcoin Protocol , Hash Functions , Cambridge Bitcoin Electricity Consumption Index , North American Bitcoin , Bitcoin Miners , Riot Blockchain , Petroleum Exporting Countries , Clean Bitcoin , Dirty Bitcoin , Mining Bitcoin , Leaderless Model , ஒன்றுபட்டது மாநிலங்களில் , அர்கோ ப்ளாக்சைன் , மைக்கேல் சாய்லோர் , பீட்டர் சுவர் , விண்மீன் டிஜிட்டல் ஹோல்டிங்ஸ் ,

Detailed text transcripts for TV channel - DW - 20181106:17:51:00

Russia pet threat comes in he wants to persuade farmers to try out alternatives he travels widely to deliver his message today he s on his way to give a workshop on a hillside village where the journey takes impossible landscapes a sign of the damaging impact corn crops can have on the soil. as demand grows more and more corn is being planted logging is against the law. many farmers flout the regulations. when. the rainy season begins be planted here again what i want before the grass. people what i need everything here will be open flame and. the resulting ash functions as a first eliza but the fires have a disastrous impact on the environment. but i learnt that ....

Pet Threat , Hillside Village , Acorn Crops , Hash Functions ,