Inputs as returned by Esplora's /address/:addr/txs, each carrying the
outpoint it spends (txid:vout). Optional: not every provider populates
it (the electrum provider omits inputs), so consumers that correlate
spenders must tolerate its absence. Used to recover a boarding output's
spending (commitment) tx when /outspends omits the spender txid.
Inputs as returned by Esplora's
/address/:addr/txs, each carrying the outpoint it spends (txid:vout). Optional: not every provider populates it (the electrum provider omits inputs), so consumers that correlate spenders must tolerate its absence. Used to recover a boarding output's spending (commitment) tx when/outspendsomits the spender txid.