Maximum number of inputs per transactionCan we interpret a rolling average transaction count per block as the 'adoption curve' for Bitcoin?Recommended Transaction SizeOptimising the inputs for a transactionWhat is the maximum number of output addresses I can send to with one bitcoin transaction?Get transaction fees per transaction via gettransactionWhat would be the implications of limiting Bitcoin transactions to fifty inputs?Determine inputs/outputs of a transaction before sendingIs there a maximum fee per byte in satoshis?Why does Bitcoin need transaction fees prior to hitting its maximum coin limit?What happens if “transaction size” is larger than “maximum block size”?

Emailing HOD to enhance faculty application

What mechanic is there to disable a threat instead of killing it?

Why "Having chlorophyll without photosynthesis is actually very dangerous" and "like living with a bomb"?

Is it legal for company to use my work email to pretend I still work there?

How can I prevent hyper evolved versions of regular creatures from wiping out their cousins?

What does it mean to describe someone as a butt steak?

I'm flying to France today and my passport expires in less than 2 months

Stopping power of mountain vs road bike

How can I tell someone that I want to be his or her friend?

A reference to a well-known characterization of scattered compact spaces

How to model explosives?

Arrow those variables!

What's the point of deactivating Num Lock on login screens?

What killed these X2 caps?

Theorems that impeded progress

How much of data wrangling is a data scientist's job?

Anagram holiday

Can a rocket refuel on Mars from water?

Combinations of multiple lists

Is there a hemisphere-neutral way of specifying a season?

Can a virus destroy the BIOS of a modern computer?

Intersection of two sorted vectors in C++

Is it canonical bit space?

What is a clear way to write a bar that has an extra beat?



Maximum number of inputs per transaction


Can we interpret a rolling average transaction count per block as the 'adoption curve' for Bitcoin?Recommended Transaction SizeOptimising the inputs for a transactionWhat is the maximum number of output addresses I can send to with one bitcoin transaction?Get transaction fees per transaction via gettransactionWhat would be the implications of limiting Bitcoin transactions to fifty inputs?Determine inputs/outputs of a transaction before sendingIs there a maximum fee per byte in satoshis?Why does Bitcoin need transaction fees prior to hitting its maximum coin limit?What happens if “transaction size” is larger than “maximum block size”?













3















In theory, what is the maximum number of inputs per transaction? Is it defined primarily by the maximum number we can store on the 9 byte varint?



How big of a number can be stored on 9 bytes?



Would such a transaction even fit in a block if it had just 1 output?










share|improve this question


























    3















    In theory, what is the maximum number of inputs per transaction? Is it defined primarily by the maximum number we can store on the 9 byte varint?



    How big of a number can be stored on 9 bytes?



    Would such a transaction even fit in a block if it had just 1 output?










    share|improve this question
























      3












      3








      3








      In theory, what is the maximum number of inputs per transaction? Is it defined primarily by the maximum number we can store on the 9 byte varint?



      How big of a number can be stored on 9 bytes?



      Would such a transaction even fit in a block if it had just 1 output?










      share|improve this question














      In theory, what is the maximum number of inputs per transaction? Is it defined primarily by the maximum number we can store on the 9 byte varint?



      How big of a number can be stored on 9 bytes?



      Would such a transaction even fit in a block if it had just 1 output?







      transactions transaction-input input






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Apr 2 at 4:19









      Pedro GonçalvesPedro Gonçalves

      646




      646




















          1 Answer
          1






          active

          oldest

          votes


















          3














          No, the number that can be represented by the varint has no effect on the maximum number of inputs. That number is far too large. Rather the maximum number of inputs is constrained by the block size.



          If it really matters to you what the maximum number that a varint can represent is, it's just the maximum value for a 64-bit integer. That's 0xffffffffffffffff. There's really no constraints on what a varint can represent. A transaction with such a number of inputs would not fit in a block, nor would it fit on any existing single storage medium as that transaction would be at least 664.1 Exabytes in size.



          The maximum number of inputs that can fit in a valid transaction is 27022.



          Such a transaction would not use segwit, so we use the maximum block size without segwit of 1000000 bytes. Subtract the 146 for the header and coinbase transaction to get 999854 bytes for the transaction. Subtract 4 bytes for the version, 4 bytes for the locktime, 1 byte for output count, 8 bytes for output value, 1 byte for output script, and 2 bytes for input count. This leaves us with 999833 bytes. With 37 bytes per input (32 previous txid, 4 output index, and 1 for script length), there can by 27022 inputs.






          share|improve this answer




















          • 2





            To note, that includes zero security or signatures.

            – Anonymous
            2 days ago











          Your Answer








          StackExchange.ready(function()
          var channelOptions =
          tags: "".split(" "),
          id: "308"
          ;
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function()
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled)
          StackExchange.using("snippets", function()
          createEditor();
          );

          else
          createEditor();

          );

          function createEditor()
          StackExchange.prepareEditor(
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: false,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: null,
          bindNavPrevention: true,
          postfix: "",
          imageUploader:
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          ,
          noCode: true, onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          );



          );













          draft saved

          draft discarded


















          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fbitcoin.stackexchange.com%2fquestions%2f85752%2fmaximum-number-of-inputs-per-transaction%23new-answer', 'question_page');

          );

          Post as a guest















          Required, but never shown

























          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          3














          No, the number that can be represented by the varint has no effect on the maximum number of inputs. That number is far too large. Rather the maximum number of inputs is constrained by the block size.



          If it really matters to you what the maximum number that a varint can represent is, it's just the maximum value for a 64-bit integer. That's 0xffffffffffffffff. There's really no constraints on what a varint can represent. A transaction with such a number of inputs would not fit in a block, nor would it fit on any existing single storage medium as that transaction would be at least 664.1 Exabytes in size.



          The maximum number of inputs that can fit in a valid transaction is 27022.



          Such a transaction would not use segwit, so we use the maximum block size without segwit of 1000000 bytes. Subtract the 146 for the header and coinbase transaction to get 999854 bytes for the transaction. Subtract 4 bytes for the version, 4 bytes for the locktime, 1 byte for output count, 8 bytes for output value, 1 byte for output script, and 2 bytes for input count. This leaves us with 999833 bytes. With 37 bytes per input (32 previous txid, 4 output index, and 1 for script length), there can by 27022 inputs.






          share|improve this answer




















          • 2





            To note, that includes zero security or signatures.

            – Anonymous
            2 days ago















          3














          No, the number that can be represented by the varint has no effect on the maximum number of inputs. That number is far too large. Rather the maximum number of inputs is constrained by the block size.



          If it really matters to you what the maximum number that a varint can represent is, it's just the maximum value for a 64-bit integer. That's 0xffffffffffffffff. There's really no constraints on what a varint can represent. A transaction with such a number of inputs would not fit in a block, nor would it fit on any existing single storage medium as that transaction would be at least 664.1 Exabytes in size.



          The maximum number of inputs that can fit in a valid transaction is 27022.



          Such a transaction would not use segwit, so we use the maximum block size without segwit of 1000000 bytes. Subtract the 146 for the header and coinbase transaction to get 999854 bytes for the transaction. Subtract 4 bytes for the version, 4 bytes for the locktime, 1 byte for output count, 8 bytes for output value, 1 byte for output script, and 2 bytes for input count. This leaves us with 999833 bytes. With 37 bytes per input (32 previous txid, 4 output index, and 1 for script length), there can by 27022 inputs.






          share|improve this answer




















          • 2





            To note, that includes zero security or signatures.

            – Anonymous
            2 days ago













          3












          3








          3







          No, the number that can be represented by the varint has no effect on the maximum number of inputs. That number is far too large. Rather the maximum number of inputs is constrained by the block size.



          If it really matters to you what the maximum number that a varint can represent is, it's just the maximum value for a 64-bit integer. That's 0xffffffffffffffff. There's really no constraints on what a varint can represent. A transaction with such a number of inputs would not fit in a block, nor would it fit on any existing single storage medium as that transaction would be at least 664.1 Exabytes in size.



          The maximum number of inputs that can fit in a valid transaction is 27022.



          Such a transaction would not use segwit, so we use the maximum block size without segwit of 1000000 bytes. Subtract the 146 for the header and coinbase transaction to get 999854 bytes for the transaction. Subtract 4 bytes for the version, 4 bytes for the locktime, 1 byte for output count, 8 bytes for output value, 1 byte for output script, and 2 bytes for input count. This leaves us with 999833 bytes. With 37 bytes per input (32 previous txid, 4 output index, and 1 for script length), there can by 27022 inputs.






          share|improve this answer















          No, the number that can be represented by the varint has no effect on the maximum number of inputs. That number is far too large. Rather the maximum number of inputs is constrained by the block size.



          If it really matters to you what the maximum number that a varint can represent is, it's just the maximum value for a 64-bit integer. That's 0xffffffffffffffff. There's really no constraints on what a varint can represent. A transaction with such a number of inputs would not fit in a block, nor would it fit on any existing single storage medium as that transaction would be at least 664.1 Exabytes in size.



          The maximum number of inputs that can fit in a valid transaction is 27022.



          Such a transaction would not use segwit, so we use the maximum block size without segwit of 1000000 bytes. Subtract the 146 for the header and coinbase transaction to get 999854 bytes for the transaction. Subtract 4 bytes for the version, 4 bytes for the locktime, 1 byte for output count, 8 bytes for output value, 1 byte for output script, and 2 bytes for input count. This leaves us with 999833 bytes. With 37 bytes per input (32 previous txid, 4 output index, and 1 for script length), there can by 27022 inputs.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited 2 days ago

























          answered Apr 2 at 5:19









          Andrew ChowAndrew Chow

          33.3k42462




          33.3k42462







          • 2





            To note, that includes zero security or signatures.

            – Anonymous
            2 days ago












          • 2





            To note, that includes zero security or signatures.

            – Anonymous
            2 days ago







          2




          2





          To note, that includes zero security or signatures.

          – Anonymous
          2 days ago





          To note, that includes zero security or signatures.

          – Anonymous
          2 days ago

















          draft saved

          draft discarded
















































          Thanks for contributing an answer to Bitcoin Stack Exchange!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid


          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.

          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fbitcoin.stackexchange.com%2fquestions%2f85752%2fmaximum-number-of-inputs-per-transaction%23new-answer', 'question_page');

          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          Sum ergo cogito? 1 nng

          三茅街道4182Guuntc Dn precexpngmageondP