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What is a txn? How can it be invalid?


How to know if a transaction is valid?What are the minimal system requirements to run a full Bitcoin node?Can transaction validation really be free?How to actively measure mempool?What is the difference between a miner and a full node?What is the advantage of running a Ripple masternode?What is preventing negative balance?Building a small block explorer for fun, stuck with nodeHow do I know that a node provides the accurate blockchainPrivate Blockchains: ValidationPrivate Blockchains: Blocks’ validation






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








2















I read this in a IRC exchange:




verifies your txns against a random node that you don't control. if for some reason that node went rogue, you might have accepted an invalid txn




What is a txn?










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    2















    I read this in a IRC exchange:




    verifies your txns against a random node that you don't control. if for some reason that node went rogue, you might have accepted an invalid txn




    What is a txn?










    share|improve this question







    New contributor



    Akiva is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.





















      2












      2








      2








      I read this in a IRC exchange:




      verifies your txns against a random node that you don't control. if for some reason that node went rogue, you might have accepted an invalid txn




      What is a txn?










      share|improve this question







      New contributor



      Akiva is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I read this in a IRC exchange:




      verifies your txns against a random node that you don't control. if for some reason that node went rogue, you might have accepted an invalid txn




      What is a txn?







      nodes terminology






      share|improve this question







      New contributor



      Akiva is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share|improve this question







      New contributor



      Akiva is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      share|improve this question




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      asked Jun 19 at 5:25









      AkivaAkiva

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      1134 bronze badges




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          2 Answers
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          1














          It's short for "transaction". There is a list here of rules that individual transactions must follow:



          https://en.bitcoin.it/wiki/Protocol_rules#.22tx.22_messages



          Some reasons that a transaction could be invalid are:



          -The person trying to spend bitcoin doesn't have that much bitcoin.



          -The person trying to spend bitcoin already submitted another transaction trying to spend the same bitcoin.



          -The person trying to spend bitcoin can't prove that they are the owner of the bitcoin.



          In addition, the block as whole that the transaction is in must follow these rules: https://en.bitcoin.it/wiki/Protocol_rules#.22block.22_messages






          share|improve this answer






























            5














            "txn" is short for "transaction". The abbreviation "tx" is also often used.



            For an explanation of what makes a transaction (in)valid, see the links at How to know if a transaction is valid?






            share|improve this answer

























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              2 Answers
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              active

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              2 Answers
              2






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes









              1














              It's short for "transaction". There is a list here of rules that individual transactions must follow:



              https://en.bitcoin.it/wiki/Protocol_rules#.22tx.22_messages



              Some reasons that a transaction could be invalid are:



              -The person trying to spend bitcoin doesn't have that much bitcoin.



              -The person trying to spend bitcoin already submitted another transaction trying to spend the same bitcoin.



              -The person trying to spend bitcoin can't prove that they are the owner of the bitcoin.



              In addition, the block as whole that the transaction is in must follow these rules: https://en.bitcoin.it/wiki/Protocol_rules#.22block.22_messages






              share|improve this answer



























                1














                It's short for "transaction". There is a list here of rules that individual transactions must follow:



                https://en.bitcoin.it/wiki/Protocol_rules#.22tx.22_messages



                Some reasons that a transaction could be invalid are:



                -The person trying to spend bitcoin doesn't have that much bitcoin.



                -The person trying to spend bitcoin already submitted another transaction trying to spend the same bitcoin.



                -The person trying to spend bitcoin can't prove that they are the owner of the bitcoin.



                In addition, the block as whole that the transaction is in must follow these rules: https://en.bitcoin.it/wiki/Protocol_rules#.22block.22_messages






                share|improve this answer

























                  1












                  1








                  1







                  It's short for "transaction". There is a list here of rules that individual transactions must follow:



                  https://en.bitcoin.it/wiki/Protocol_rules#.22tx.22_messages



                  Some reasons that a transaction could be invalid are:



                  -The person trying to spend bitcoin doesn't have that much bitcoin.



                  -The person trying to spend bitcoin already submitted another transaction trying to spend the same bitcoin.



                  -The person trying to spend bitcoin can't prove that they are the owner of the bitcoin.



                  In addition, the block as whole that the transaction is in must follow these rules: https://en.bitcoin.it/wiki/Protocol_rules#.22block.22_messages






                  share|improve this answer













                  It's short for "transaction". There is a list here of rules that individual transactions must follow:



                  https://en.bitcoin.it/wiki/Protocol_rules#.22tx.22_messages



                  Some reasons that a transaction could be invalid are:



                  -The person trying to spend bitcoin doesn't have that much bitcoin.



                  -The person trying to spend bitcoin already submitted another transaction trying to spend the same bitcoin.



                  -The person trying to spend bitcoin can't prove that they are the owner of the bitcoin.



                  In addition, the block as whole that the transaction is in must follow these rules: https://en.bitcoin.it/wiki/Protocol_rules#.22block.22_messages







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Jun 19 at 15:00









                  AcccumulationAcccumulation

                  1862 bronze badges




                  1862 bronze badges























                      5














                      "txn" is short for "transaction". The abbreviation "tx" is also often used.



                      For an explanation of what makes a transaction (in)valid, see the links at How to know if a transaction is valid?






                      share|improve this answer



























                        5














                        "txn" is short for "transaction". The abbreviation "tx" is also often used.



                        For an explanation of what makes a transaction (in)valid, see the links at How to know if a transaction is valid?






                        share|improve this answer

























                          5












                          5








                          5







                          "txn" is short for "transaction". The abbreviation "tx" is also often used.



                          For an explanation of what makes a transaction (in)valid, see the links at How to know if a transaction is valid?






                          share|improve this answer













                          "txn" is short for "transaction". The abbreviation "tx" is also often used.



                          For an explanation of what makes a transaction (in)valid, see the links at How to know if a transaction is valid?







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Jun 19 at 6:12









                          Nate EldredgeNate Eldredge

                          20.6k3 gold badges30 silver badges71 bronze badges




                          20.6k3 gold badges30 silver badges71 bronze badges




















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