Difference between revisions of "Blockchain"
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[[Block Chain]] will solve all problems, provided you have the energy of a small sun available to power it. | [[Block Chain]] will solve all problems, provided you have the energy of a small sun available to power it. | ||
==Context== | ==Context== | ||
| − | The technology for [[Block Chain]] itself has been around for at least 20 years. These simple chain allowed non-revocable commitments by | + | The technology for [[Block Chain]] itself has been around for at least 20 years. These simple chain allowed non-revocable commitments by creating a series of blocks that included a collection of all of the block hashes received since the last update plus the hash of that last update. The has of the current block update is calculated and published in a public place plus being added to the next update in sequence. Thus each entry onto the block chain cannot be changed as so is immutable. |
===Simple Chains=== | ===Simple Chains=== | ||
| − | Block chains were first commercialized by Bellcore | + | Block chains were first commercialized by Bellcore which published the hash of each day's update in the New York Times. |
===Proof of Work=== | ===Proof of Work=== | ||
*The first successful block chain with distributed ledger was created by the pseudonymous | *The first successful block chain with distributed ledger was created by the pseudonymous | ||
Revision as of 16:49, 15 December 2018
Contents
Full Title or Meme
Block Chain will solve all problems, provided you have the energy of a small sun available to power it.
Context
The technology for Block Chain itself has been around for at least 20 years. These simple chain allowed non-revocable commitments by creating a series of blocks that included a collection of all of the block hashes received since the last update plus the hash of that last update. The has of the current block update is calculated and published in a public place plus being added to the next update in sequence. Thus each entry onto the block chain cannot be changed as so is immutable.
Simple Chains
Block chains were first commercialized by Bellcore which published the hash of each day's update in the New York Times.
Proof of Work
- The first successful block chain with distributed ledger was created by the pseudonymous
- Mark Russinovich did an interesting calculation that showed that this pow scheme would
Problems
- The current problem that many architects are fixated on solving relate to the concentration of user information in a small number of very large companies.
- There are some efforts to reduce the power consumption. If those work, it looks like the solution will just be some other trust framework, but with a different name. For example the proposal of Hardjono et al.[1] goes to a resilient system like the internet, which is, of necessity, single rooted even though nearly all components can work independantly for a time, just as the internet itself functions today.
Solutions
- Proof-of-Stake solutions use a random selection process, but maintain the value on the chain as the incentive for the selected updater to continue the chain.
- Pure Proof-of-Stake block chain systems. Also has some good comparisons against other schemes.
- ALGORAND the block chain for business contains a good collection of block chain papers.
