Invalid block 474294

Why it is invalid

rule

missing_unconfirmed_parent

Core reject

bad-txns-inputs-missingorspent

Core check

ConnectBlock via CheckTxInputs

CI checks

A complete block extending the block a public API reports at the previous height. The missing_prevout outpoint must be spent by an input in the block and created by a transaction not in the block, and the API must currently report that transaction confirmed in another block at this height or later. Unconfirmed or absent status is not evidence.

Incident note: 474294 - missing parent transaction (2017)

Transaction 110 spends b11a78c6c61af1cb37586f639050d74b95c2b0fd525623b6cb6a4bb4fba46a0e:1, and that parent transaction is not in the block. The record names that outpoint in missing_prevout. Both transactions confirmed in the competing block at the same height, 000000000000000000db2504327e272fe7658fac0dd0741f46b212256e500886. The spent output did not exist at the tip of the previous block, so ConnectBlock fails with bad-txns-inputs-missingorspent. This is not an in-block ordering error: unlike 477115 and 809478, no later transaction in the body creates the output. The preserved full block, the parent transaction, its current confirmation and the canonical block hash at 474293 re-derive the violation.