Presentation given at Tokyo and Beijing Ethereum/Polkadot meetups, Dec 2018.

1. Parity Polkadot

2. Themes in Blockchain 3.0
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3. Parity
Substrate
Polkadot ...
libp2p wasmi
Rust
Substrate Substrate ...

4. Parity
Substrate
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5. Parity
Substrate
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6. Substrate
libp2p
consensus
webassembly
runtime
Written in Rust
Built into both Wasm & native
Wasm stored on-chain
Written in Rust
Built into native

7. Polkadot
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8. Substrate

9. Substrate Native speed, no forking
No
Yes

10. Polkadot
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11. Tabled motions
Coinhodlers
Council
Polkadot
Public proposed
motions
Motion 2Motion 1

12. Polkadot
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13. Polkadot
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14. Polkadot ●
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15. Polkadot
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16. Polkadot
“No” “Yes” “No”
1 DOT;
8 weeks lock
3 DOTs;
6 weeks lock
4 DOTs;
2 weeks lock
“Yes”: 9
“No”: 8 Unlocked
Locked
Time (weeks)
Vote ends (passes)
0 2 4 6 8
Proposal enacted
Bob tokens locked
“No” “Yes” “No”
1 DOT;
8 weeks lock
3 DOTs;
4 weeks lock
4 DOTs;
2 weeks lock
“Yes”: 6
“No”: 8 Locked
Unlocked
Time (weeks)
Vote ends (rejected)
0 2 4 6 8
Alice tokens locked
Charlie tokens locked

17. Polkadot
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18. Polkadot

19. Polkadot

20. Polkadot
Delegated body for default
decision-making apparatus
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21. Polkadot
Rotating approval vote
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22. Polkadot
Oraclising these groups differs in
ease:
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23. Polkadot
Coming this month:
- Substrate 1.0 beta (prototype
your own para-chains and
dapps!)
- Polkadot PoC-3 (para-chains,
governance and GRANDPA
consensus)

24. Polkadot
Coming April 2019:
- Polkadot PoC-4 (interchain
messaging!)
- Substrate 1.0 final
Coming second half 2019:
- Polkadot launch*
(* assuming audit goes well :-) )