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Quick look at CoinMarketCap: https://coinmarketcap.com/currencies/super-bitcoin/
(it was airdropped in 1-to-10 proportion)
Some scammy discussion: https://www.cryptocompare.com/coins/sbtc/post/p_409993
(put your 24 words seed and be scammed)
Really unsure if there is any way of claiming SBTC without the aid of Ledger developers.
Or maybe there is a legitimate way to use 24 words seed, and therefore get access to SBTC?