Bitcoin addresses start with 1, any address not starting with 1 is not a bitcoin address.
"q......." Bitcoin Cash, not Bitcoin address
"A......." Bitcoin Gold, not Bitcoin address
"bc1..." SegWit, not Bitcoin address
"d......." Bitcoin Diamond, not Bitcoin address
"R......" Bitcoin Rhodium, not Bitcoin address
"3......" BitcoinHD, not Bitcoin address
"0x... " Bitcoin Hex, not Bitcoin address
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