<p>You can <a href="https://bitcoin.stackexchange.com/q/3374">write a transaction</a> by hand. You'll definitely need to use a computer to sign it. Then you can then search for "Bitcoin push transaction" to broadcast yours, or you can connect to a node with TCP and send them the transaction, or you can mail the signed transaction to your favorite pool operator.</p>

CC BY-SA 4.0
2020-04-23T13:20:13.020Z
2020-04-23T13:20:13.020Z
MCCCS
<p>The transaction digest alone would take around 2 days of non-stop work:</p>

<p><a href="http://www.righto.com/2014/09/mining-bitcoin-with-pencil-and-paper.html" rel="nofollow noreferrer">http://www.righto.com/2014/09/mining-bitcoin-with-pencil-and-paper.html</a></p>

<p>That's before you even start the 32-byte multiplication required to compute an ECDSA signature.</p>

<p>It might be humanly possible if the UTXO you are spending does not require a signature. An "anyone-can-spend" transaction would only take a few minutes to assemble since they require no input script. But then of course anyone could steal your coins before your TX got confirmed.</p>

CC BY-SA 4.0
2020-04-23T13:26:12.503Z
2020-04-23T13:26:12.503Z
pinhead
<p>In my last answer I have done an allegation which I want to be proven or disproven. If this work possible, how much paper does it require? What kind of software needs Bob to send a transaction to miners?</p>

<transactions><private-key><output>
Is it possible to write a transaction of bitcoins, having only pen, paper and a private key from the address with some unspent outputs?
Eimrine
# Is it possible to write a transaction of bitcoins, having only pen, paper and a private key from the address with some unspent outputs?

(Asked by: username_0 on 2020-04-23)

In my last answer I have done an allegation which I want to be proven or disproven. If this work possible, how much paper does it require? What kind of software needs Bob to send a transaction to miners?

**Tags:** transactions, private-key, output


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## 2 answers

### Answer by username_1 on 2020-04-23. Score: 2 | Accepted answer

You can [write a transaction](https://bitcoin.stackexchange.com/q/3374) by hand. You'll definitely need to use a computer to sign it. Then you can then search for "Bitcoin push transaction" to broadcast yours, or you can connect to a node with TCP and send them the transaction, or you can mail the signed transaction to your favorite pool operator.


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### Answer by username_2 on 2020-04-23. Score: 4

The transaction digest alone would take around 2 days of non-stop work:

<http://www.righto.com/2014/09/mining-bitcoin-with-pencil-and-paper.html>

That's before you even start the 32-byte multiplication required to compute an ECDSA signature.

It might be humanly possible if the UTXO you are spending does not require a signature. An "anyone-can-spend" transaction would only take a few minutes to assemble since they require no input script. But then of course anyone could steal your coins before your TX got confirmed.


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