1. The Difficulties And Countermeasures Of DAPP On Block Chain
Liu Yuan (Lynch)

2. The Difficulties
Consensus---Delay
Block---Throughput

3. The Countermeasures Consensus---Improvement Block---Increase
Protocol---optimize
On-chain
Credit endorsement on-chain
Instant payment off-chain
Automatically adjudicated on-chain
State Channel

4. Key Technology of State Channel
Multisignature
RSMC(Recoverable Sequence Maturity Contract)
HTLC(Hashed Time lock Contract)

5. Multisignature (A’) (B’) (A’) 10 Transaction From A to B Transaction
From AB to C
(B) 10
(C) 10

6. RSMC (A’) 10 (B’) 10 Funding (A,B’) 20 (A’,B) 20 X C1a #1 #0 C1b #0 #1
# #0
C1b
# #1
(A1,B’) 10
(B) 10
(A’,B1) 10
(A) 10
RD1a
Seq = 1000
RD1b
Seq = 1000
(A) 10
(B) 10

7. RSMC (A’) 10 (B’) 10 Funding (A,B’) 20 (A’,B) 20 X C2a #1 #0 C2b #0 #1
# #0
C2b
# #1
(A2,B’) 5
(B) 15
(A’,B2) 15
(A) 5
RD2a
Seq = 1000
RD2b
Seq = 1000
(A) 5
(B) 15

8. RSMC (A’) 10 (B’) 10 Funding (A,B’) 20 (A’,B) 20 X (B) 10 C1a #1 #0
# #0
C1b
# #1
(A) 10
(A1’,B) 10
(A1,B’) 10
(A’,B1) 10
(A,B1’) 10 X X
BR1a
RD1a
Seq = 1000
RD1b
Seq = 1000
BR1b
(B) 10
(B) 10
(A) 10
(A) 10

9. HTLC A B C D Step 7 Step 6 R + 5 R + 4 Step 5 R + 3 Step 1
R------》H（R）
H(R)+3
Step 2
H（R）+ 5
Step 3
H（R）+ 4
Step 4
H（R）+ 3

10. HTLC (A’) 10 (B’) 10 Funding (A,B’) 20 (A’,B) 20 X C1a #1 #0 C1b #0 #1
# #0
C1b
# #1
(A1,B’) 10
(B) 10
(A’,B1) 10
(A) 10
RD1a
Seq = 1000
RD1b
Seq = 1000
(A) 10
(B) 10

11. HTLC (A’) 10 (B’) 10 Funding (A,B’) 20 (A’,B) 20 X C2a #1 #0 #2 C2b
#1 # #2
C2b
#0 #1
(A) 5
(B) 10
(A’,B2) 10
(A2,B’) 5
(HTLC) 5
(HTLC) 5
RD2b
Seq = 1000
RD2a
Seq = 1000 X
(A’,B3,R) 5 X
(A,B3’) 5
(A3’,B,R) 5
(A3,B’) 5
(A) 5
(B) 10
HED1a
H(R)
HT1a
>3 days
HE1b
H(R)
HTD1b
>3 days
(B) 5
(A) 5
(B) 5
(A) 5

12. Architecture Data Base Message Management SPV manager N S M CLI
Transaction
Monitor
Channel Router
CSAM
CLM
Transaction
Management 
RSMC
HTLC MS
Channel Management  AM
Block Chain Service

13. Architecture DAPP 4 3 2 1 Channel service Layer Channel Router Layer
State Channel Layer
Channel Router Layer r
Channel service Layer
DAPP
Block Chain Layer 1 2 3 4

14. D-Application Painter Sharer Learner Collector 。。。 Resource Provider
Account Management System
Users Reward
Painting Trading
System Reward
ColorBay Settling Engine
State Channel Engine
（Trinity Network Service）

15. The phase of State Channel
Payment
Special
General
Across

16. A UNIVERSAL OFF-CHAIN SCALING SOLUTION