TRUC

TRUC (Topologically Restricted Until Confirmation) is an opt-in Bitcoin Core mempool policy for transactions that set nVersion = 3. It is described in BIP 431. An unconfirmed TRUC transaction may have at most one unconfirmed parent and one unconfirmed child. The parent is limited to 10,000 vB and the child to 1,000 vB. A TRUC parent may pay below the minimum relay feerate if a package with its child meets the node's feerate rules. The policy is not a consensus change.

See also

• Ephemeral_anchor
• Lightning Network
• Transaction

External links

• BIP 431: Topology Restrictions for Pinning
• Bitcoin Optech: Version 3 transaction relay