Blockchain Info

This page explains the steps used in Drawing with Blockchain blocks. To understand the steps Arena takes to determine the final draw, go through this wizard by clicking on the steps above! You can change the block number by clicking on the edit button next to it or visit the block's official page by clicking on the Etherscan icon.


Blockchain number: 14805929 Edit

Block details: - Verify at Etherscan
Block's hash: 0xebda05053dc52ba1a090239fc1227988302213f1dcbe51900f628f5a75cb6321
Previous block's hash: 0x6f6ecb34170dbc37458223b4c08e0f08297101841325eb9fb94fc2173ddc264d
Block's Nonce: 0x56696084fdc140b4

Note: This blockchain number is not used at any UWW organized events.
If this blockchain number was used at an event organized by a National Federation, ask the local secretatiat team to open this Blockchain Info page from the Arena server where the draw was generated to get a complete analysis of this block.
On the next page you can still see the method how the draw numbers were extracted from this block.

Next Step >>

Conversion

At this phase Arena converts the hash values into draw numbers. Since the hash numbers are random and unpredictable, the final number list will also be such a random list.

Step 1

Take the block details and concatenate them as Block's hash + Previous block's hash + Block's Nonce (or StateRoot if Nonce is 0) without the leading "0x" string.

Result: ebda05053dc52ba1a090239fc1227988302213f1dcbe51900f628f5a75cb6321 6f6ecb34170dbc37458223b4c08e0f08297101841325eb9fb94fc2173ddc264d 56696084fdc140b4

Step 2

Divide this long string by 2 units

eb da 05 05 3d c5 2b a1 a0 90 23 9f c1 22 79 88 30 22 13 f1 dc be 51 90 0f 62 8f 5a 75 cb 63 21 6f 6e cb 34 17 0d bc 37 45 82 23 b4 c0 8e 0f 08 29 71 01 84 13 25 eb 9f b9 4f c2 17 3d dc 26 4d 56 69 60 84 fd c1 40 b4

Step 3

Convert the hexadecimal numbers to decimal ones (eg. eb[hex] => 14 * 16 + 11 = 235[decimal]).
Note: You can verify this via https://www.duplichecker.com/hex-to-decimal.php. Click here to copy the hexadecimal numbers to your clipboard and then paste them into duplichecker's window (text box on the left side).

235 218 5 5 61 197 43 161 160 144 35 159 193 34 121 136 48 34 19 241 220 190 81 144 15 98 143 90 117 203 99 33 111 110 203 52 23 13 188 55 69 130 35 180 192 142 15 8 41 113 1 132 19 37 235 159 185 79 194 23 61 220 38 77 86 105 96 132 253 193 64 180

Step 4

Search for duplicates and drop every other than the first occurrence

235 218 5 5 61 197 43 161 160 144 35 159 193 34 121 136 48 34 19 241 220 190 81 144 15 98 143 90 117 203 99 33 111 110 203 52 23 13 188 55 69 130 35 180 192 142 15 8 41 113 1 132 19 37 235 159 185 79 194 23 61 220 38 77 86 105 96 132 253 193 64 180

The result is: (hover over the numbers below to see their position in the uncleared list)
235 218 5 61 197 43 161 160 144 35 159 193 34 121 136 48 19 241 220 190 81 15 98 143 90 117 203 99 33 111 110 52 23 13 188 55 69 130 180 192 142 8 41 113 1 132 37 185 79 194 38 77 86 105 96 253 64
<< Previous Step
Powered by Etherscan.io APIs