The increase in the number of vehicles has led to the increase in number of accidents. The rise in connected vehicles and autonomous vehicles will increase the level of forensics and investigations required in case of an accident. A hindrance to the investigation is the reliability of data. This paper proposes a blockchain framework to ensure that the vehicular data at the time of accident is stored in a tamper-proof and reliable way for further analysis by various stakeholders. A test bed using IoT, IPFS and Etherum test network is proposed and evaluated to study the feasibility of the proposed approach.

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