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Sponsored by Bitcoin Unlimited

Instant Transactions Workshop

October 16-18, 2018

Gargnano (Lake Garda) Italy

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Improving the money of the futureA discussion on ways to improve instant transactions

A collaborative and highly-technical three-day workshop with the goal of improving instant transactions for Bitcoin Cash. Attendance was limited to active developers, researchers, and key stakeholders.

The workshop's main focus was to develop strategies for improving instant transactions that can be implemented over the short term (addressing the fast-respend and reverse-respend vulnerabilities). Examples include double-spend relay, super-standard transactions, and double-spend proofs. A secondary focus was on longer-term ideas, such as those based on pre-consensus techniques, to address the double-spend vulnerabilities that involve miner collusion.

The workshop included round-table discussions, working groups, and technical presentations.

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Agenda Check out our schedule of events and agenda.

Tusday AM

8:00 - 9:00

Breakfast

9:00 - 9:20

Welcome message

9:20 - 9:50
Andrea Suisani

Andrea Suisani

Instant Transactions: The Status Quo
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9:50 - 10:20
Peter Rizun

Peter Rizun

Empirical Double-spend Probabilities for Unconfirmed Transactions
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10:20 - 11:00

Coffee break

11:00 - 11:30
Emil Oldenburg

Emil Oldenburg

On-chain Dice Games, What We Learned From Building Lowrider
11:30 - 12:00
Joshua Ellithorpe

Joshua Ellithorpe

Mitigating Risk - How Exchanges Can Accept Zero Conf Transactions
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12:00 - 13:30

Lunch

Tuesday PM

13:30 - 15:00

Break-out session: What are your goals for this workshop?

13:30 - 13:45

Explaination of break-out session, define groups

13:45 - 14:30

Independent group discussion, elect spokespeople

13:30 - 13:45

Spokespeople present findings to entire group

14:30 - 15:00

Spokespeople present findings to entire group

15:00 - 15:30

Coffee break

15:30 - 17:00

Mini hackathon: Double-spend Your Way to $1000 Free-for-all!

Wednesday AM

8:00 - 9:00

Breakfast

9:00 - 9:30
Imaginary Username

Imaginary Username

Minimally Invasive: A Proposal for Relaying Double Spend Proofs and Prioritizing Transactions
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9:30 - 10:00
Tom Zander

Tom Zander

Instant Transactions, How They Failed and How DS-proofs Fixes That
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10:00 - 10:30
Tom Harding

Tom Harding

The Relay Race
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10:30 - 11:00

Coffee break

11:00 - 12:30
Panel Discussion

Panel Discussion

Double-spend Proofs Versus Double-spend Relay
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12:30 - 14:00

Lunch

Wednesday PM

15:30 - 21:00
Team building event

Team building event

Boat Ride + Dinner

Thursday AM

8:00 - 9:00

Breakfast

9:00 - 9:30
Awemany

Awemany

Zero Conf Forfeits
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9:30 - 10:00
Amaury Sechet

Amaury Sechet

Embrace the DAG
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10:00 - 10:30
 Bitcoin.com mining team

Bitcoin.com mining team

What can miners do to improve instant transactions?
View Presentation
10:30 - 11:00

Coffe break

11:00 - 12:30
Panel Discussion

Panel Discussion

Best Practices When Accepting Instant Transactions
12:30 - 14:00

Lunch

Thursday PM

14:00 - 15:30
Break out sessions

Break out sessions

What will you do to make instant transactions more usable?
15:30 - 16:00

Coffee break

16:00 - 17:00

Wrap up

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