Abstract
Storing data in the blockchain brings many benefits. The block-and-chain structure protects the data stored in the blockchain from unauthorised changes. The data will also be duplicated to all nodes which maintain the blockchain. These features guarantee the data immutability and availability. However, such operation is expensive when large size data needs to be stored. We propose Senarai, a protocol which provides an affordable blockchain data storage. Our protocol utilises the fee-less transaction feature provided by Tron. By using this feature, storing an arbitrary size data can be done cheaply. We show that our protocol is sustainable such that after initialisation phase, the permanent data storage capacity is provided for free on daily basis.
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Notes
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Mainnet or main network is where the tokens have real value. In contrast, testnet or test network provides free zero value tokens that can be used for testing purposes.
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The number of free bandwidth points varies depending on the network parameters.
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The experiments use medium-size royalty-free image files provided by Pixabay.com.
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Based on the transaction created by an Ethereum Stackexchange user in August 2016 which utilised the maximum block gas limit at the time of transaction creation [1]. The data efficiency rate is calculated by comparing the data payload and the raw transaction. The Ethereum block gas limit is scalable, therefore it is possible to increase the efficiency further [1].
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Wijaya, D.A., Liu, J., Steinfeld, R., Liu, D., Limerlina (2019). Senarai: A Sustainable Public Blockchain-Based Permanent Storage Protocol. In: Mu, Y., Deng, R., Huang, X. (eds) Cryptology and Network Security. CANS 2019. Lecture Notes in Computer Science(), vol 11829. Springer, Cham. https://doi.org/10.1007/978-3-030-31578-8_13
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