Summary - These two patterns were possible in 2009–2010. To…

Summary
- These two patterns were possible in 2009–2010. Today, both are invalid on BTC and BCH. On BSV, they’re also invalid under default/typical transaction rules; BSV has reintroduced some legacy-like flexibility via versioned rules, but you shouldn’t assume early-era oddities like opcodes in scriptSig or lax DER will validate on BSV unless you specifically conform to the new, opt-in conditions.