ArbiTen Finance is an algorithmic stablecoin on Arbitrum, which is pegged to 0.1 ETH by both Seigniorage (like Tomb Finance) and Fractional Collateralization (like Frax). There is a delay and scale-up of the redemption and minting features to prevent excessive redemption and ensure longevity.
The 10SHARE token is the governance token of both the Tomb fork and Iron Finance parts. In addition to being used for the standard features of governance and yield, the 10SHARE token is burned when ArbiTen is minted. It is also deposited in the Boardroom to receive new ArbiTen minted by the protocol.