<p>This is only true if one does not mix transactions. Otherwise you will have coins that are for example 50% from source A, 10% from B, 40% from C and so forth.</p>

CC BY-SA 3.0
2013-02-18T09:19:58.110Z
you are right. mixing services only could make it very difficult. blockchain doesn't know anything about intermediate addresses.
vi.su.
CC BY-SA 3.0
2013-02-18T09:46:27.003Z
@vi.su. If someone set up a mixing service properly to completely separate various coins, it would be nearly untraceable, or at least highly deniable.
ThePiachu
CC BY-SA 3.0
2013-02-18T09:08:13.027Z
2013-02-18T09:08:13.027Z
ThePiachu
<p>Fist bitcoins in, First out.</p>

<p>Will this assumption allow individual bitcoin tracking possible?</p>

<p>example,</p>

<pre><code>Addresses A, B and C each has 50 BTC

Transactions, 

  tx1 - A &gt; D - 10 BTC (D - 10 BTC)
  tx2 - B &gt; D - 15 BTC (D - 25 BTC)
  tx3 - C &gt; D - 20 BTC (D - 45 BTC)

  tx4 - D &gt; E - 20 BTC (E - 20 BTC, D - 25 BTC)

  Now,
    D has none of BTC received from A, 5 BTC from B and 20 BTC from C
    E, fist 10 BTC was received from A, next 10 BTC was received from B
</code></pre>

CC BY-SA 3.0
2013-02-18T08:42:46.377Z
related question (1), http://bitcoin.stackexchange.com/questions/450/is-there-any-way-to-track-an-individual-bitcoin-or-satoshi
vi.su.
CC BY-SA 3.0
2013-02-18T09:36:40.807Z
Yes, but it's not a meaningful metric, if, say, the bitcoins were sold.
Nick ODell
CC BY-SA 3.0
2013-02-20T01:23:21.330Z
Would you do this for transaction fees as well?
David Schwartz
CC BY-SA 3.0
2013-02-20T01:47:33.407Z
transaction fees? yes, but only if it is > 1 satoshi. :)
vi.su.
<transactions>
Will this assumption allow individual bitcoin tracking possible?
vi.su.
# Will this assumption allow individual bitcoin tracking possible?

(Asked by: username_0 on 2013-02-18)

Fist bitcoins in, First out.
Will this assumption allow individual bitcoin tracking possible?
example,
Addresses A, B and C each has 50 BTC

Transactions, 

  tx1 - A > D - 10 BTC (D - 10 BTC)
  tx2 - B > D - 15 BTC (D - 25 BTC)
  tx3 - C > D - 20 BTC (D - 45 BTC)

  tx4 - D > E - 20 BTC (E - 20 BTC, D - 25 BTC)

  Now,
    D has none of BTC received from A, 5 BTC from B and 20 BTC from C
    E, fist 10 BTC was received from A, next 10 BTC was received from B

**Tags:** transactions

> **Comments:**
> **username_0**: related question (1), http://bitcoin.stackexchange.com/questions/450/is-there-any-way-to-track-an-individual-bitcoin-or-satoshi  
> **username_1**: Yes, but it's not a meaningful metric, if, say, the bitcoins were sold.  
> **username_2**: Would you do this for transaction fees as well?  
> **username_0**: transaction fees? yes, but only if it is > 1 satoshi. :)  

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## 1 answers

### Answer by username_3 on 2013-02-18. Score: 3

This is only true if one does not mix transactions. Otherwise you will have coins that are for example 50% from source A, 10% from B, 40% from C and so forth.

> **Comments:**
> **username_0**: you are right. mixing services only could make it very difficult. blockchain doesn't know anything about intermediate addresses.  
> **username_3**: @username_0 If someone set up a mixing service properly to completely separate various coins, it would be nearly untraceable, or at least highly deniable.  

---

