- Anna: A Crazy Fast, Super-Scalable, Flexibly Consistent KVS
- What would it take to build a key-value store that would excel across many orders of magnitude of scale, from a single multicore box to the global cloud?
- The paper includes numbers showing it beating Redis by over 10x on a single AWS instance, and beating Cassandra by 10x across the globe on a standard interactive benchmark.
- Anna gets its performance and its scalability from its fully coordination-free implementation of simple actors with private state, which only communicate† via background gossip.
- The state of each Anna actor is a monotone lattice composition. Anna is the first system to offer all these consistency levels [causal consistency, read-committed], and the various choices differ in only a couple dozen lines of C++ each.
- no source code that I could find
- Who Will Steal Satoshi’s Bitcoins?
- Google's recent 72qbit machine apparently exactly in line with predicted quantum computing progress
- according to the same predictions, the first classical crypto algos will be broken in 2022
- do not reveal your public keys (pubkey hashes only!), and don't reuse addresses
- Bitcoin price forecasting with deep learning algorithms
- results are unbelievably good
- included here in case someone wants to reproduce / look at the code more closely than I have
- Chasing fake volume: a crypto-plague
- estimates in excess of 90% fake volume on some chinese exchanges
- methodology is as follows:
- collect orderbook data
- estimate slippage of a 20k USD market sell order
- do this first for a group of trusted exchanges who's trading volume numbers you believe: train a slippage -> volume model on this data
- now use this model to estimate the true volume on untrusted exchanges
- An Efficient-Markets Valuation Framework for Cryptoassets using Black-Scholes Option Theory
- construct a valuation framework by viewing tokens as call options on the underlying economic value
- this is attractive because it becomes possible to think about the volatility associated with radically novel technologies
- Paper review. Service-oriented sharding with Aspen
- sharding solution based on ideas from Bitcoin NG
- main achievement is partitioning the set of transactions into channels which can be verified and ordered independently of each other
- a given set of miners may now support multiple logical blockchains, leading to an increase in the total number of transactions