Bitcoin full node and query server

Apr 21, 2021

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Wait Eric, So, at a given block B with hash ‘19823983217492749827439832’ - this block may be a weak or strong block (in a weak or the strong chain) - then i want to know if the UTXO txid:index ‘913283194879132834’:3, exists or not, and is spent or not. How do I do this using node.chain(). ?