Post on 09-Mar-2021
Zeta Avarikioti &Felix Laufenberg, Jakub Sliwinski, Yuyi Wang, Roger Wattenhofer
5
5
10
5
5
Blockchain
T=99
6
4
T=100
Micropayment Channel
1 2 3
1 2 3
2
1 2 3
1 2 3
1 2 3
1 2 3
2
1 2 3
23
Original Watchtowers
Privacy
TXID: 51b78168d94ec307e2855697209275d4 77e05d8647caf29cb9e38fb6a4661145identifier key
Original Watchtowers
Privacy
Watchtowers
TXID: 51b78168d94ec307e2855697209275d4 77e05d8647caf29cb9e38fb6a4661145identifier key
Original Watchtowers
Privacy
Watchtowers
TXID: 51b78168d94ec307e2855697209275d4 77e05d8647caf29cb9e38fb6a4661145identifier key
Original Watchtowers
Overhead
why participate?
Altruism
storage
lookup time
Free Market
● Security
● Incentives
● Overhead
● Privacy
● Security
● Incentives
● Overhead
● Privacy
● Security
● Incentives
● Overhead
● Privacy
Centralization
enforce who gets the reward by protocol design!
A
D
E
Phase 1: Disclose & Cascade
Phase 2: Watch & Commit
The DCWC Protocol
● Security
● Incentives
● Overhead
● Privacy
The DCWC Protocol
● Security
● Incentives
● Overhead
● Privacy
The DCWC Protocol
● Security
● Incentives
● Overhead
● Privacy
The DCWC Protocol
● Security
● Incentives
● Overhead
● Privacy
The DCWC Protocol
● Security
● Incentives
● Overhead
● Privacy
● Security
● Incentives
● Overhead
● Privacy
A
DEThe DCWC Protocol
● Security
● Incentives
● Overhead
● Privacy
A
DEThe DCWC Protocol
No forks or changes in Lightning!
More...
● Incentive for participation
● More privacy
● Lower overhead
What if there are no frauds?
What if there are no frauds?
Premiums!
Cheating Watchtowers?
What if there are no frauds?
work in progress...
W
1 2 3 1’ 2’ 3’
work in progress...
W
2’
1 2 3 1’ 2’ 3’
=
work in progress...
More...
● Incentive for participation
● More privacy
● Lower overhead
More...
● Incentive for participation
● More privacy
● Lower overhead
Incentivizing Watchtowers
Work in progress...