Summary

Represents spendable bitcoin. Forms the global state of Bitcoin.

Security Notes

  • UTXOUnspent Transaction Output. A spendable bitcoin output created by a prior transaction. growth impacts Full NodeSoftware that independently validates blocks and transactions against consensus rules. memory requirements
  • Double-spend prevention relies on UTXOUnspent Transaction Output. A spendable bitcoin output created by a prior transaction. uniqueness

Node Security Panel

Vulnerabilities (0)

    Attacks (0)

      Assumptions (0)

        Policy vs Consensus (0)

          Graph Neighbors

          DirectionRelationNode
          OutgoingIS_UNSPENT_FORM_OFOutput
          IncomingSPENDSInput
          IncomingEXPLOITSDouble Spend
          IncomingDEPENDS_ONAddress Reuse
          IncomingDEPENDS_ONUTXO Set Growth

          Related Nodes

          Bitcoin Academy Learning Paths

          Structured concept nodes connect blocks, transactions, mempool policy, mining incentives, and security models into guided journeys you can resume anytime.

          Each node links to live explorer modules and labs so theory maps directly to observable mainnet behavior.

          Frequently asked questions

          • Is Academy content available in Spanish?

            Yes. Toggle to /es/academy for mirrored research and academy nodes where translations exist.

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