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I'm trying to convert a hashed block number "30054a" into readable format but I'm getting logs something like this:

0J

For another hashed value:

Y����#�(�J�d��F,ĦJ/

I'm using the following code on my NodeJS server:

const util = require('ethjs-util'); const value = util.toAscii('30054a'); console.log(value);

I had even tried toUtf8. I'm using ethjs library.

Where am I wrong?

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You said the value is "hashed," but I think you're just looking at the hexadecimal number?

If so, parseInt('30054a', '16') == 3147082. 3147082 is the decimal representation of the hexadecimal number 0x30054a.

If you actually have a value that's been hashed, there's generally no way to reverse that process. (A cryptographic hash function is designed to be one-way.)

  • What about hexadecimal string, object or function? – Sowmay Jain May 2 '18 at 5:03
  • I tried converting this cded53d631ce4a38a1f90d59e5f2f9c023cd28c64aa66488e9462cc4a64a032f using web3.toAscii(). It returned - ÍíSÖ1ÎJ8¡ù YåòùÀ#Í(ÆJ¦déF,ĦJ/ – Sowmay Jain May 2 '18 at 5:35
  • I didn't say anything about web3.toAscii. That would only be appropriate if the value you have came from an ASCII string. Where did those values come from? – user19510 May 2 '18 at 12:25
  • I called the etherscan API of event logs. All the key's field are in hexadecimal format. How can I convert it in readable format? – Sowmay Jain May 2 '18 at 13:34
  • Can you suggest any accurate article or course which explains the whole concept ot hexa to big number to whatever? – Sowmay Jain May 2 '18 at 13:36

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