The document provides an agenda and details for the Interledger workshop taking place in Berlin on June 1-2, 2017. Day 1 will include sessions on Interledger overviews, keynotes, demos of Interledger implementations, and panels discussing routing challenges. Breakfast, afternoon tea, and wifi will be provided. The agenda provides timing for sessions and breaks. Background information on Interledger includes its community and contributors from various organizations, timeline of milestones, and goal of creating an Internet of Value through micropayments.

1. Interledger
Berlin - 1 & 2 June 2017

2. Live Stream: https://bluejeans.com/795795755
Tweet @interledger or use the hashtag #interledger
Breakfast, afternoon tea provided both days
Lunch in the hotel/expo

3. 09:30 - 10:00 An Interledger Overview
10:00 - 10:45 KEYNOTE: How micropayments will change the world
10:45 - 11:00 Coffee/Tea break
11:00 - 12:30 Building the live Interledger network with ILP Kit and Connector.land
12:30 - 13:30 Lunch
13:30 - 13:45 A walkthrough of the Interledger Java implementation
13:45 - 14:15 DEMO: Ledger plugins and existing integrations
14:15 - 14:45 DEMO: Gatehub ledger plugins and APIs
14:45 - 15:00 Interledger and the W3C Web Payments APIs
15:00 - 15:15 Crypto-conditions
15:15 - 15:30 Coffee/Tea break
15:30 - 16:00 PANEL: Interledger routing challenges
16:00 - Close Planning for day 2
Agenda For Today (1 June)

4. Interledger Project
KEY FACTS
Open Protocol Community Group @ W3C 220+ Contributors
Banks
Central banks
Payments companies
Tech giants
Consulting companies
Blockchain companies

5. October 2015 Published the Interledger White Paper
November 2015 Launched Interledger Community Group at W3C
February 2016 First workshop in San Francisco (50+ attendees)
February 2016 First draft of Crypto-conditions RFC
March 2016 First draft of Architecture Overview (ILP - RFC 1)
June 2016 Re-launch of interledger.org website
July 2016 Second workshop in London (70+ attendees)
July 2016 IETF Berlin - BoF session
September 2017 W3C TPAC Lisbon - ILP Community Group meeting
October 2017 InterledgerJS launched at the JS Foundation
November 2017 ILP Kit v1 released
March 2017 ILP Address and Packet specs released
May 2017 ILP Kit v2 released
June 2017 Third workshop in Berlin
A Little History

6. 6
Interledger Workshop
LONDON 2016

7. Interledger
Evan Schwartz
@_emschwartz
Internetworking for Money

8. Payments are broken.

9. Payment Methods Accepted By Prineta.com
Accepting Payments OnlineAccepting Payments Online

10. Blockchain will
not solve the problem.

11. Payment Networks Are Disconnected
BlockchainBanks Mobile Money Online Wallets

12. We Need the Internet of
Money
Payments
Value
Blockchains
Coins

13. Can We Connect Everything to One Blockchain?
? ?
? ?

14. No.

15. The World Will Never Agree On One Ledger

16. We Need the Internet of
Money
Payments
Value
Blockchains
Coins

17. internetworking

18. in·ter·net·work·ing
Connecting networks through gateways that
route data packets between the networks
noun

19. Internetworking Connects Everyone

20. BlockchainBanks Mobile Money Online Wallets
Internetworking For Payment Networks

21. Interledger
Internetworking for Money

22. OUR INSPIRATION
The History & Architecture of the Internet

23. SIMPLICITY

24. Internet Architecture
IP
WIFI BLUETOOTH ETHERNET
Internetwork
Network
Transport TCP UDP
Application HTTP SMTP NNTP NTP RTP

25. Interledger Architecture
ILP
BLOCKCHAINS
BANKS MOBILE MONEY
Interledger
Ledger
Transport IPR PSK PSK-ECDH
Application SPSP HTTP-ILP PAYTORRENT

27. Interledger 101

28. Internetworking Ingredients:
1. Ledger Abstraction
2. Routers
3. Multi-Hop
4. Address + Packet
5. Routing

29. Internetworking Ingredients:
1. Ledger Abstraction
2. Routers
3. Multi-Hop
4. Address + Packet
5. Routing

30. BlockchainBanks Mobile Money Online Wallets
Need a Way to Interact with Every Kind of Ledger

31. All Ledgers Are Treated Equally

32. IP Works Over Every Type of Network

33. Stay Tuned for More on Ledger Plugins:
1. Demo Today @ 2pm
2. Plugin-athon Tomorrow

34. Internetworking Ingredients:
1. Ledger Abstraction
2. Routers
3. Multi-Hop
4. Address + Packet
5. Routing

35. Payments Within One Network Are Trivial
Sender ReceiverLedger

36. Payments Across Ledgers
Sender ReceiverLedger Ledger
?

37. Connectors Link Two Ledgers
Connector
EUR USD

38. Connectors Exchange Currencies
Alice 100
Chloe 0
Chloe 107
Bob 0
EUR USD

39. Connectors Generate Revenue from Spreads
Alice 100
Chloe 0
Chloe 107
Bob 0
EUR USD

40. Payments Across Connectors?
EUR USD
?
BTC

41. Internetworking Ingredients:
1. Ledger Abstraction
2. Routers
3. Multi-Hop
4. Address + Packet
5. Routing

42. Multi-hop is trickier with
money than with data

43. Correspondent Banking: Optimistic Execution
EXECUTE

44. Correspondent Banking: Optimistic Execution
FAIL

45. 1. PREPARE
Interledger: Two-Phase Execution Secures Multi-Hop Transfers
REFERENCES
J. Poon and T. Drya, The Bitcoin Lightning Network: Scalable Off-Chain Instant Payments, 2015
S. Thomas and E. Schwartz, A Protocol for Interledger Payments, 2015

46. 1. PREPARE
2. EXECUTE
Interledger: Two-Phase Execution Secures Multi-Hop Transfers
REFERENCES
J. Poon and T. Drya, The Bitcoin Lightning Network: Scalable Off-Chain Instant Payments, 2015
S. Thomas and E. Schwartz, A Protocol for Interledger Payments, 2015

47. Conditional payments enable
trustless connectors

48. 1. PREPARE
2. EXECUTE
Sender is Guaranteed Fulfillment or Money Back
REFERENCES
J. Poon and T. Drya, The Bitcoin Lightning Network: Scalable Off-Chain Instant Payments, 2015
S. Thomas and E. Schwartz, A Protocol for Interledger Payments, 2015

49. Interledger works even over
simple payment channels

50. Internetworking Ingredients:
1. Ledger Abstraction
2. Routers
3. Multi-Hop
4. Address + Packet
5. Routing

51. {
account: "g.us.usd.chase.bob.car",
amount: "10",
data: "SGVsbG8gV29ybGQhCg..."
}
Interledger In One Slide

52. {
account: "g.crypto.bitcoin.1BvBMSEY...",
amount: "10",
data: "SGVsbG8gV29ybGQhCg..."
}
Interledger Addresses Work for Any Ledger

53. Core of IP is the Address and Packet Formats

54. Internetworking Ingredients:
1. Ledger Abstraction
2. Routers
3. Multi-Hop
4. Address + Packet
5. Routing

55. Addressing is Separate From Routing
Please deliver to
g.crypto.bitcoin.1x... Right away!

56. Interested in Routing? Come to the
Routing Discussion @ 3:30pm

57. Internetworking Ingredients:
1. Ledger Abstraction
2. Routers
3. Multi-Hop
4. Address + Packet
5. Routing

58. Internet of Value

59. Interledger
Internetworking for Money

60. Micropayments
Stefan Thomas
@justmoon
Small Payments Make a Big Difference

61. The Internet Economy is Incomplete
10010110
???
DOWNLOADER UPLOADER
Today: Protocols Suffer from the Barter Problem

62. Coincidence of Wants
There may be many people wanting,
and many possessing those things
wanted; but to allow of an act of barter,
there must be a double coincidence,
which will rarely happen.
- William S. Jevons, 1875
“

63. So We Use Hacks to Get Around the Problem
10010110
DOWNLOADER UPLOADER
$$$
Hacks: Aggregation, Bartering, Bundling, ...

64. Why Are You Getting 30% of Everyone's Revenue, Exactly?
Aggregation: Explosion of Marketplaces

65. Tim Cook, CEO Apple
When an online service is free,
you're not the customer.
You're the product.

66. Bundling: Annoying and Dangerous
66

68. Users Are Opting Out
Source: PageFair/Adobe
Ad Blockers Rising

69. Peer to Peer Model

70. $$$
10010110
DOWNLOADER UPLOADER
Money: Solving the Barter Problem Since 5000 BC
Money Solves the Barter Problem

71. Everywhere you want to be.
There are some things money can't buy.
For everything else, there's MasterCard.
TODAY
Payment Networks Compete For Reach

72. This used to be true for
information networks too

73. "… biggest …"
"… more members …"
"… more services…"

74. Internetworking commoditized reach

75. America's fastest Internet.
Reliable. Safe. Fast.
High-speed Internet from AT&T
Fast, reliable, unlimited Internet
WITH INTERNETWORKING
Providers Compete on Speed, Reliability, Ease-of-use

79. Sending Payment...
$1241.20 remaining; current speed: 13.2 $/s

80. Efficient Switching Removes Fixed Costs
unviable viable viable
fixed cost
Transaction size
Cost
Transaction size
Cost
pre-internetworking
fixed costs price out
long-tail use cases
post-internetworking
new business models
become possible

82. The Internet Enabled Fundamentally New Business Models

83. Internet — Cost vs Volume
SOURCES
Cisco
DrPeering

84. $$$
Large (>10$), Slow (several seconds), Few in Number
Today: Humans Pay for Goods and Services
2017

85. $$$
Payments in 2021: 100x Cheaper, 100x Smaller, but a Billion Times More Volume
Future: Humans Pay for Goods and Services
$$$
10010110
2017 2021

86. We will move from
mobile-first to
AI-first.
Sundar Pichai, CEO Google

87. 87

88. This Applies to Everything
Data is Transforming Every Industry and This Will Transform Data
● Artificial Intelligence
● Virtual Reality
● Drones
● Internet of Things
● Self-Driving Cars
● Mobile
● World Wide Web
● Stocks
Get Paid for Submitting Training Data
Pay for Premium Content Experience
Pay for Recharging
Devices Providing Services to Each Other
Trade Road Data; Pay for Transit Priority
Disrupt App Marketplaces
Gain a Sustainable Business Model
Settle Trades Across Exchanges

89. Advertising and Marketplaces May Become Outdated Models
The Disrupter Becomes the Disruptee
1995-2016 2017-
?

90. Nodes and Links
Michiel de Jong
@michielbdejong
On the Open Interledger

91. Part 1: Nodes on the Interledger

92. The first nodes:
FiveBellsLedger

93. The first nodes:
FiveBellsLedger
+
ilp-connector

94. The first nodes:
FiveBellsLedger
+
Ilp-connector
+
PluginVirtual

95. FiveBellsLedger
is great for
Dial-up Nodes

96. Ilp-kit servers
have become
Personal Nodes

97. Connectors are the links between Ledgers

98. Connectors are the links between Ledgers
FiveBellsLedger
FiveBellsLedger
Connector
Connector
Plugin
Virtual
Plugin
Virtual

99. Connectors are the links between Ledgers
FiveBellsLedger
FiveBellsLedger
Connector
Connector
Plugin
Virtual
Plugin
Virtual

100. Spring 2017: The Interledger Enlightenment

101. Connectors are the links between Ledgers
Ledgers Connectors

102. Ledgers are the links between Connectors
FiveBellsLedger
FiveBellsLedger
Connector
Connector
Plugin
Virtual
Plugin
Virtual

103. Ledgers are the links between Connectors
FiveBellsLedger
FiveBellsLedger
Connector
Connector
PEER LEDGER

104. ilp-kit:
Reference Node
Changes often
Personal Server
Version 2 live
Version 3 dev

105. ilp-kit is like Lego

106. Other Software:
Java (progress!)
ilp-node (early)

107. Plugin land:
LPI spec
Peer ledgers
Group ledgers
Crypto ledgers

108. PluginVirtual:
Each node’s API
Node-to-Node
RPC calls

109. Core Node
Keep a full routing table

110. Periphery Node
Ask upstream for a quote

111. Node functions:
Receive a route
Forward transfer
Pass fulfillment
Respond quote
Balance check
Pass rejection
Fulfill SPSP
Initiate payment

112. Server Hardening
Fend off unauthenticated requests
Detect peer gone nasty, and unpeer
Blame sender or receiver?

113. ConnectorLand
Stats about personal nodes
A bit behind on its Q2 schedule!
Crypto
Crypto
Crypto
Crypto
Personal
Personal Personal
Personal

114. Part 2: Links on the Interledger

115. Who do you trust?
Each inbound peer vouches for its predecessors
Each outbound peer vouches for its successors

116. Which ledger is inside your node?
Destination ledger for spsp
Hot wallets

117. Which ledger is between two nodes?
Trustline
Payment channel

118. How do nodes communicate?
Prepare fulfill reject
Routes Curves Quotes
On-ledger
Separate Comms networks
Using hubs

119. How does a Link work?
Limits
Disputed balance
In-flight amount
Closing a ledger-backed channel
Proxying ledgers
Hashlocks inside payment channels

120. Ledger Plugins
Ben Sharafian
@sharafian
Elements of Interledger

121. Public Blockchains
Xe Et B Z

122. Et Plugin Ethereum
Public Blockchains
Basic Ethereum integration

123. Xe Plugin XRP
Public Blockchains
Using Escrow functionality on the XRP Ledger

124. Central Ledgers
Fb Gh Pp Ap

125. Gh Plugin Gatehub
Central Ledger
You'll hear more about this in a moment!

126. Simple Channels
V Xp Ep Bp

127. V Plugin Virtual
Basic Channels
Simplest possible ledger

128. Xp XRP PayChan
Basic Channels
Only in-flight funds are at risk

129. Et XeEthereum (Escrow) XRP (Escrow)
Lo' and Behold: Payment History
May 16, 2017

130. Fb
Five Bells
Demonstrating Interledger

131. Fb
V
Five Bells
Virtual

132. Fb
V
Et
Five Bells Ethereum (Escrow)
Virtual

133. Fb
V
Et
Xp
Five Bells Ethereum (Escrow)
Virtual XRP (PayChan)

134. Fb
V
Et
Xp
Ch
Five Bells Ethereum (Escrow)
Virtual XRP (PayChan)
Chain

135. Fb
V
Et
Xp
Ch
Five Bells Ethereum (Escrow)
Virtual XRP (PayChan)
Chain

136. V
Et
Xp
Ch
Bp
Ethereum (Escrow)
Virtual XRP (PayChan)
Chain
Bitcoin (Payment Channels)

137. V
Et
Xp
Ch
Bp
Xe
Ethereum (Escrow)
Virtual XRP (PayChan)
Chain XRP (Escrow)
Bitcoin (Payment Channels)

138. LET'S WATCH THE REACTION!

139. Simple Channels
V
Xp
Ep
Bp

140. State Channels
V
Xp
Ep
Bp
Xb
R
Li

141. Central Ledgers
V
Xp
Ep
Bp
Xb
R
Li
Fb Gh Pp Ap

142. Private Blockchains
V
Xp
Ep
Bp
Xb
R
Li
Fb Gh Pp Ap Ch
H

143. Public Blockchains
V
Xp Xb Ch Et
Xe
Ep R H B
Bp Li
Fb Gh Pp Ap
Z

144. Periodic Table of Ledgers
V
Xp Xb Ch Et
Xe
Ep R H B
Bp Li
Fb Gh Pp Ap
Z

145. Help Us Fill In The Blanks!
V
Xp Xb Ch Et
Xe
Ep R H B
Bp Li
Fb Gh Pp Ap
Z

146. W3C Web Payments
Interledger in the browser
Adrian Hope-Bailie
@ahopebailie

147. A payment API built into the browser
147
const methodData = [{
supportedMethods: ["basic-card"],
data: {
supportedNetworks: ["visa", "mastercard"]
}
}, {
supportedMethods: ["interledger"],
data: {
spspEndpoint: "http://example.com/spsp/?invoice=1234"
}
}];
const payment = new PaymentRequest(methodData, details, options);
let paymentResponse;
paymentResponse = await payment.show();
validateResponse(paymentResponse);
paymentResponse.complete("success");

148. What does it look like
148

149. ● Payment Request - https://www.w3.org/TR/payment-request/
● Payment Method Identifiers - https://w3c.github.io/webpayments-method-identifiers/
● Payment Handler - https://w3c.github.io/payment-handler/
● Payment Methods
Basic Card - https://w3c.github.io/webpayments-methods-card/
Interledger - https://w3c.github.io/webpayments/proposals/interledger-payment-method.html
Tokenized Card -
Credit Transfers - https://w3c.github.io/webpayments-methods-credit-transfer-direct-debit/
Specifications

150. Who’s involved
150