Invalid block 477115

Why it is invalid

rule and Core reject

bad-txns-inputs-missingorspent

Core check

ConnectBlock via CheckTxInputs

CI checks

A complete block containing a spend of an existing output of a later transaction in that block. A spend of a parent transaction absent from the block uses missing_unconfirmed_parent.

Incident note: 477115 - transaction ordering (2017)

Three of the block's 255 transactions spend an output of a transaction that appears later in the same block. As with 809478, ConnectBlock encounters these inputs before their outputs are available: bad-txns-inputs-missingorspent. This violation is re-derivable from the preserved full block.