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: 22001355 Edit

Block details: - Verify at Etherscan
Block's hash: 0xfe7c2fbc14990e9bb4035972021be5437a7a7d02798985dce91eaa342309d1a7
Previous block's hash: 0x055075e7b65228225534156789d3ea3ad20d0e445c5dcd9b7aae84d1f7b8a73a
Block's Nonce is 0, we use StateRoot instead!!!: 0x1e73a8272e45292e7ba9caf30c5d8a67415a3c99b39b77f3d7250aa6e5732cd8

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: fe7c2fbc14990e9bb4035972021be5437a7a7d02798985dce91eaa342309d1a7 055075e7b65228225534156789d3ea3ad20d0e445c5dcd9b7aae84d1f7b8a73a 1e73a8272e45292e7ba9caf30c5d8a67415a3c99b39b77f3d7250aa6e5732cd8

Step 2

Divide this long string by 2 units

fe 7c 2f bc 14 99 0e 9b b4 03 59 72 02 1b e5 43 7a 7a 7d 02 79 89 85 dc e9 1e aa 34 23 09 d1 a7 05 50 75 e7 b6 52 28 22 55 34 15 67 89 d3 ea 3a d2 0d 0e 44 5c 5d cd 9b 7a ae 84 d1 f7 b8 a7 3a 1e 73 a8 27 2e 45 29 2e 7b a9 ca f3 0c 5d 8a 67 41 5a 3c 99 b3 9b 77 f3 d7 25 0a a6 e5 73 2c d8

Step 3

Convert the hexadecimal numbers to decimal ones (eg. fe[hex] => 15 * 16 + 14 = 254[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).

254 124 47 188 20 153 14 155 180 3 89 114 2 27 229 67 122 122 125 2 121 137 133 220 233 30 170 52 35 9 209 167 5 80 117 231 182 82 40 34 85 52 21 103 137 211 234 58 210 13 14 68 92 93 205 155 122 174 132 209 247 184 167 58 30 115 168 39 46 69 41 46 123 169 202 243 12 93 138 103 65 90 60 153 179 155 119 243 215 37 10 166 229 115 44 216

Step 4

Search for duplicates and drop every other than the first occurrence

254 124 47 188 20 153 14 155 180 3 89 114 2 27 229 67 122 122 125 2 121 137 133 220 233 30 170 52 35 9 209 167 5 80 117 231 182 82 40 34 85 52 21 103 137 211 234 58 210 13 14 68 92 93 205 155 122 174 132 209 247 184 167 58 30 115 168 39 46 69 41 46 123 169 202 243 12 93 138 103 65 90 60 153 179 155 119 243 215 37 10 166 229 115 44 216

The result is: (hover over the numbers below to see their position in the uncleared list)
254 124 47 188 20 153 14 155 180 3 89 114 2 27 229 67 122 125 121 137 133 220 233 30 170 52 35 9 209 167 5 80 117 231 182 82 40 34 85 21 103 211 234 58 210 13 68 92 93 205 174 132 247 184 115 168 39 46 69 41 123 169 202 243 12 138 65 90 60 179 119 215 37 10 166 44 216
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