Why you don't need any blockchain
I do use blockchain
Reason for this presentation
Ukraine's land registry to use blockchain
Some basic cryptography reference
SHA
Secure Hash Algorithm
Public-key cryptography
a.k.a. asymmetric cryptography
Bitcoin
... and its power(consumption)
| Name | Ops, TH/s | Power, KW | Price, $ | Count | Power, GW | Price, $M |
|---|---|---|---|---|---|---|
| S7 | 4.73 | 1.300 | 500 | 7'948'165 | 10.3 | 3'974.08 |
| S9 | 14 | 1.500 | 3000 | 2'685'345 | 4.03 | 8'056.03 |
| 16T | 16 | 1.500 | 2730 | 2'349'677 | 3.53 | 6'414.62 |
digiconomist
My estimations
Ethereum
... and its power(consumption)
- 6'791'117 * $600 (price of a card) = $4'074'670'200 (for GPUs)
- 916'800 * $0.08/h = $73.344/h = $1'760'256/day = $642'493'440/year
- 4 * 60m * $476 * 3.5 = $399'840/h ("value" generated)
DocSensus
How it could be
hash A1 (signed) -> hash A2 (signed) -> hash A3 (signed)
hash B1 (signed) -> hash B2 (signed) -> hash B3 (signed)
More on bitcoin
kidnapping
