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Documents authored by Goldman, Daniel


Document
BoLD: Fast and Cheap Dispute Resolution

Authors: Mario M. Alvarez, Henry Arneson, Ben Berger, Lee Bousfield, Chris Buckland, Yafah Edelman, Edward W. Felten, Daniel Goldman, Raul Jordan, Mahimna Kelkar, Akaki Mamageishvili, Harry Ng, Aman Sanghi, Victor Shoup, and Terence Tsao

Published in: LIPIcs, Volume 316, 6th Conference on Advances in Financial Technologies (AFT 2024)


Abstract
BoLD is a new dispute resolution protocol that is designed to replace the originally deployed Arbitrum dispute resolution protocol. Unlike that protocol, BoLD is resistant to delay attacks. It achieves this resistance without a significant increase in onchain computation costs and with reduced staking costs.

Cite as

Mario M. Alvarez, Henry Arneson, Ben Berger, Lee Bousfield, Chris Buckland, Yafah Edelman, Edward W. Felten, Daniel Goldman, Raul Jordan, Mahimna Kelkar, Akaki Mamageishvili, Harry Ng, Aman Sanghi, Victor Shoup, and Terence Tsao. BoLD: Fast and Cheap Dispute Resolution. In 6th Conference on Advances in Financial Technologies (AFT 2024). Leibniz International Proceedings in Informatics (LIPIcs), Volume 316, pp. 2:1-2:19, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2024)


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@InProceedings{alvarez_et_al:LIPIcs.AFT.2024.2,
  author =	{Alvarez, Mario M. and Arneson, Henry and Berger, Ben and Bousfield, Lee and Buckland, Chris and Edelman, Yafah and Felten, Edward W. and Goldman, Daniel and Jordan, Raul and Kelkar, Mahimna and Mamageishvili, Akaki and Ng, Harry and Sanghi, Aman and Shoup, Victor and Tsao, Terence},
  title =	{{BoLD: Fast and Cheap Dispute Resolution}},
  booktitle =	{6th Conference on Advances in Financial Technologies (AFT 2024)},
  pages =	{2:1--2:19},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-345-4},
  ISSN =	{1868-8969},
  year =	{2024},
  volume =	{316},
  editor =	{B\"{o}hme, Rainer and Kiffer, Lucianna},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.AFT.2024.2},
  URN =		{urn:nbn:de:0030-drops-209389},
  doi =		{10.4230/LIPIcs.AFT.2024.2},
  annote =	{Keywords: Optimistic rollups, fraud proofs}
}
Document
Fast and Furious Withdrawals from Optimistic Rollups

Authors: Mahsa Moosavi, Mehdi Salehi, Daniel Goldman, and Jeremy Clark

Published in: LIPIcs, Volume 282, 5th Conference on Advances in Financial Technologies (AFT 2023)


Abstract
Optimistic rollups are in wide use today as an opt-in scalability layer for blockchains like Ethereum. In such systems, Ethereum is referred to as L1 (Layer 1) and the rollup provides an environment called L2, which reduces fees and latency but cannot instantly and trustlessly interact with L1. One practical issue for optimistic rollups is that trustless transfers of tokens and ETH, as well as general messaging, from L2 to L1 is not finalized on L1 until the passing of a dispute period (aka withdrawal window) which is currently 7 days in the two leading optimistic rollups: Arbitrum and Optimism. In this paper, we explore methods for sidestepping the dispute period when withdrawing ETH from L2 (called an exit), even in the case when it is not possible to directly validate L2. We fork the most-used rollup, Arbitrum Nitro, to enable exits to be traded on L1 before they are finalized. We also study the combination of tradeable exits and prediction markets to enable insurance for withdrawals that do not finalize. As a result, anyone (including contracts) on L1 can safely accept withdrawn tokens while the dispute period is open despite having no knowledge of what is happening on L2. Our scheme also allows users to opt-into a fast withdrawal at any time. All fees are set by open market operations.

Cite as

Mahsa Moosavi, Mehdi Salehi, Daniel Goldman, and Jeremy Clark. Fast and Furious Withdrawals from Optimistic Rollups. In 5th Conference on Advances in Financial Technologies (AFT 2023). Leibniz International Proceedings in Informatics (LIPIcs), Volume 282, pp. 22:1-22:17, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2023)


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@InProceedings{moosavi_et_al:LIPIcs.AFT.2023.22,
  author =	{Moosavi, Mahsa and Salehi, Mehdi and Goldman, Daniel and Clark, Jeremy},
  title =	{{Fast and Furious Withdrawals from Optimistic Rollups}},
  booktitle =	{5th Conference on Advances in Financial Technologies (AFT 2023)},
  pages =	{22:1--22:17},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-303-4},
  ISSN =	{1868-8969},
  year =	{2023},
  volume =	{282},
  editor =	{Bonneau, Joseph and Weinberg, S. Matthew},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.AFT.2023.22},
  URN =		{urn:nbn:de:0030-drops-192112},
  doi =		{10.4230/LIPIcs.AFT.2023.22},
  annote =	{Keywords: Ethereum, layer 2, rollups, bridges, prediction markets}
}
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