This paper is available on arxiv under CC 4.0 license. Authors: (1)Eason Chen, Carnegie Mellon University; (2) Justa Liang, Bucket Protocol; (3) Ray Huang, Bucket Protocol; (4) Pierce Hung, Bucket Protocol; (5) Damien Chen, Bucket Protocol; (6) Ashley Hsu, Bucket Protocol; (7) Konstantinos Chalkias, Mysten Labs; (8) Stefanos Pleros Mysten Labs. TABLE OF LINKS Abstract and Introduction Background Randomness Practice in Blockchain System Development Transaction Fee Comparison Discussion Conclusion and References 7. CONCLUSION This paper explained how to build a fair, verifiable, efficient random raffle on the Sui Network. We investigate a range of smart contract design methodologies for constructing chance-based games through smart contracts, identify their inherent constraints, and propose remedies. Furthermore, we furnish insights drawing from the advantages and limitations of different design choices. Through these insights, we provide valuable guidance to researchers and developers engaged in randomness games using smart contracts. REFERENCES [1] Sam Blackshear, Evan Cheng, David L Dill, Victor Gao, Ben Maurer, Todd Nowacki, Alistair Pott, Shaz Qadeer, Dario Russi Rain, Stephane Sezer, et al. 2019. Move: A language with programmable resources. Libra Assoc (2019), 1. [2] Joseph Bonneau, Jeremy Clark, and Steven Goldfeder. 2015. On bitcoin as a public randomness source. Cryptology ePrint Archive (2015). [3] Joseph Bonneau and Valeria Nikolaenko. 2022. Public Randomness and Randomness Beacons. https://a16zcrypto.com/posts/article/public-randomness-andrandomness-beacons/. (Accessed on 10/10/2023). [4] Chainlink. 2023. Chainlink VRF | Chainlink Documentation. https://docs.chain. link/vrf. (Accessed on 10/07/2023). [5] Kostas Kryptos Chalkias. 2022. Fair Randomness in Decentralized Games. https://docs.google.com/presentation/d/ 1a9wddWhqKM4GXMV1UrhrpaH1sBMUxZWI. 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[11] Ethereum Foundation. 2023. Zero-Knowledge rollups | ethereum.org. https:// ethereum.org/en/developers/docs/scaling/zk-rollups/. (Accessed on 10/09/2023). [12] Sara Gherghelas. 2023. State of the Dapp Industry in Q2 2023. https://dappradar. com/blog/state-of-the-dapp-industry-in-q2-2023. [13] Shafi Goldwasser, Silvio Micali, and Chales Rackoff. 2019. The knowledge complexity of interactive proof-systems. In Providing sound foundations for cryptography: On the work of shafi goldwasser and silvio micali. 203–225. [14] The News Lense. 2023. Dinter’s "Lineage M" Purple Cloth Incident: The fair will fine Gamania 2 million TWD, legislators and the public call for the promotion of the "Gashapon Law" - The News Lens Key Comment Network. https://www. thenewslens.com/article/168188. (Accessed on 10/07/2023). [15] Ralph C Merkle. 1987. A digital signature based on a conventional encryption function. In Conference on the theory and application of cryptographic techniques. Springer, 369–378. [16] Satoshi Nakamoto. 2008. Bitcoin: A peer-to-peer electronic cash system. Decentralized business review (2008). [17] Newzoo. 2023. Newzoo Global Games Market Report 2023 | Free Version. https://newzoo.com/resources/trend-reports/newzoo-global-gamesmarket-report-2023-free-version. (Accessed on 10/07/2023). [18] Rune Kristian Lundedal Nielsen and Pawel Grabarczyk. 2019. Are Loot Boxes Gambling?: Random reward mechanisms in video games. Transactions of the Digital Games Research Association 4 (2019), 171–207. [19] League of Entropy. 2023. Drand - Distributed Randomness Beacon. https: //drand.love. (Accessed on 10/07/2023). [20] League of Entropy. 2023. Specification | Drand - Distributed Randomness Beacon. https://drand.love/docs/specification/. (Accessed on 10/07/2023). [21] Stefanos Pleros and Konstantinos Chalkias. 2023. Time-locked Satoshi Coin Flip. https://github.com/MystenLabs/satoshi-coin-flip. (Accessed on 10/10/2023). [22] Yolan Romailler. 2022. Multi Frequency Support and Timelock Encryption Capabilities are coming in drand! https://drand.love/blog/2022/02/21/multi-frequencysupport-and-timelock-encryption-capabilities/. (Accessed on 10/10/2023). [23] The MystenLabs Team. 2022. The Sui Smart Contracts Platform. https://docs.sui. io/paper/sui.pdf. (Accessed on 10/04/2023). [24] Zhipeng Wang, Stefanos Chaliasos, Kaihua Qin, Liyi Zhou, Lifeng Gao, Pascal Berrang, Benjamin Livshits, and Arthur Gervais. 2023. On how zero-knowledge proof blockchain mixers improve, and worsen user privacy. In Proceedings of the ACM Web Conference 2023. 2022–2032. [25] Zibin Zheng, Shaoan Xie, Hongning Dai, Xiangping Chen, and Huaimin Wang. 2017. An overview of blockchain technology: Architecture, consensus, and future trends. In 2017 IEEE international congress on big data (BigData congress). Ieee, 557–564. This paper is under CC 1.0 license. available on arxiv

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