Just a lil touch here: the block height 507084 was a bitcoin block, not a litecoin block. (https://blockchain.info/block/0000000000000000003499be13766404995184368e14174120ef76e231df88a1)
Thanks.
Topic: Litecoin.win Provably Fair Seeding Event (Read 258 times)
Thanks.
Just a lil touch here: the block height 507084 was a bitcoin block, not a litecoin block. (https://blockchain.info/block/0000000000000000003499be13766404995184368e14174120ef76e231df88a1)
guys, you go to crypto market now, then you should buy Litecoin.
Block #507084 has been mined.
The client seed will be that hash of that block: 0000000000000000003499be13766404995184368e14174120ef76e231df88a1
The client seed will be that hash of that block: 0000000000000000003499be13766404995184368e14174120ef76e231df88a1
Please notice: litecoin.win is formerly known as ltcrash.com and bustacoin.com. See https://bitcointalksearch.org/topic/tcrash-crowdsourced-bustabit-like-litecoin-casino-2782356
This will reuse the idea posted by Ryan and used for Bustabit.
This is an event to prove litecoin.win is fair.
The reference code (javascript) is as follows:
The method to create the hash chain is simply sha256:
The method to convert a game hash, mix it with the picked client seed to a litecoin.win multiplier:
The chain could be generated with code such as:
Using our chosen starting serverSeed, the hash terminating the chain is 281baeeb0f2dc9c9a0875b7362483a50dfd7e37a33a75d82ed9aed82bcb53544
This will reuse the idea posted by Ryan and used for Bustabit.
This is an event to prove litecoin.win is fair.
- Starting with a secret seed I've generated a chain of 10,000,000 SHA256 hashes. Each element is the hash of the lowercase, hexadecimal string representation of the previous hash. The hash of the chain's last element is: 281baeeb0f2dc9c9a0875b7362483a50dfd7e37a33a75d82ed9aed82bcb53544
- litecoin.win will play through that chain of hashes, in reverse order, and use the hashes to determine the crash point.
- To avoid criticism that the Server Secret used in step 1 was carefully chosen to generate lots of "bad" crash points, each hash in the chain will be salted with a client seed, which we have no control of.
The client seed will be the block hash of a Litecoin block that hasn't yet been mined: block 507084
The reference code (javascript) is as follows:
The method to create the hash chain is simply sha256:
Code:
function genGameHash(serverSeed) {
return crypto.createHash('sha256').update(serverSeed).digest('hex');
}
The method to convert a game hash, mix it with the picked client seed to a litecoin.win multiplier:
Code:
function crashPointFromHash(serverSeed, clientSeed) {
function divisible(hash, mod) {
// We will read in 4 hex at a time, but the first chunk might be a bit smaller
// So ABCDEFGHIJ should be chunked like AB CDEF GHIJ
var val = 0;
var o = hash.length % 4;
for (var i = o > 0 ? o - 4 : 0; i < hash.length; i += 4) {
val = ((val << 16) + parseInt(hash.substring(i, i+4), 16)) % mod;
}
return val === 0;
}
var hash = crypto.createHmac('sha256', serverSeed).update(clientSeed).digest('hex');
/* In 1 of 101 games the game crashes instantly. */
if (divisible(hash, 101))
return 0;
/* Use the most significant 52-bit from the hash
to calculate the crash point */
var h = parseInt(hash.slice(0,52/4),16);
var e = Math.pow(2,52);
return Math.floor((100 * e - h) / (e - h));
}
The chain could be generated with code such as:
Code:
var serverSecret = 'secret';
var clientSeed = '0000examplehash';
var gamesToGenerate = 1e7;
var serverSeed = serverSecret;
for (var game = gamesToGenerate; game > 0; --game) {
serverSeed = genGameHash(serverSeed);
console.log('Game ' + game + ' has a crash point of ' + (crashPointFromHash(serverSeed, clientSeed) / 100).toFixed(2) +'x', '\t\tHash: ' + serverSeed);
}
var terminatingHash = genGameHash(serverSeed);
console.log('The final hash is: ', terminatingHash);
Using our chosen starting serverSeed, the hash terminating the chain is 281baeeb0f2dc9c9a0875b7362483a50dfd7e37a33a75d82ed9aed82bcb53544
Nice !
Please notice: litecoin.win is formerly known as ltcrash.com and bustacoin.com. See https://bitcointalksearch.org/topic/tcrash-crowdsourced-bustabit-like-litecoin-casino-2782356
This will reuse the idea posted by Ryan and used for Bustabit.
This is an event to prove litecoin.win is fair.
The reference code (javascript) is as follows:
The method to create the hash chain is simply sha256:
The method to convert a game hash, mix it with the picked client seed to a litecoin.win multiplier:
The chain could be generated with code such as:
Using our chosen starting serverSeed, the hash terminating the chain is 281baeeb0f2dc9c9a0875b7362483a50dfd7e37a33a75d82ed9aed82bcb53544
This will reuse the idea posted by Ryan and used for Bustabit.
This is an event to prove litecoin.win is fair.
- Starting with a secret seed I've generated a chain of 10,000,000 SHA256 hashes. Each element is the hash of the lowercase, hexadecimal string representation of the previous hash. The hash of the chain's last element is: 281baeeb0f2dc9c9a0875b7362483a50dfd7e37a33a75d82ed9aed82bcb53544
- litecoin.win will play through that chain of hashes, in reverse order, and use the hashes to determine the crash point.
- To avoid criticism that the Server Secret used in step 1 was carefully chosen to generate lots of "bad" crash points, each hash in the chain will be salted with a client seed, which we have no control of.
The client seed will be the block hash of a Litecoin block that hasn't yet been mined: block 507084
The reference code (javascript) is as follows:
The method to create the hash chain is simply sha256:
Code:
function genGameHash(serverSeed) {
return crypto.createHash('sha256').update(serverSeed).digest('hex');
}
The method to convert a game hash, mix it with the picked client seed to a litecoin.win multiplier:
Code:
function crashPointFromHash(serverSeed, clientSeed) {
function divisible(hash, mod) {
// We will read in 4 hex at a time, but the first chunk might be a bit smaller
// So ABCDEFGHIJ should be chunked like AB CDEF GHIJ
var val = 0;
var o = hash.length % 4;
for (var i = o > 0 ? o - 4 : 0; i < hash.length; i += 4) {
val = ((val << 16) + parseInt(hash.substring(i, i+4), 16)) % mod;
}
return val === 0;
}
var hash = crypto.createHmac('sha256', serverSeed).update(clientSeed).digest('hex');
/* In 1 of 101 games the game crashes instantly. */
if (divisible(hash, 101))
return 0;
/* Use the most significant 52-bit from the hash
to calculate the crash point */
var h = parseInt(hash.slice(0,52/4),16);
var e = Math.pow(2,52);
return Math.floor((100 * e - h) / (e - h));
}
The chain could be generated with code such as:
Code:
var serverSecret = 'secret';
var clientSeed = '0000examplehash';
var gamesToGenerate = 1e7;
var serverSeed = serverSecret;
for (var game = gamesToGenerate; game > 0; --game) {
serverSeed = genGameHash(serverSeed);
console.log('Game ' + game + ' has a crash point of ' + (crashPointFromHash(serverSeed, clientSeed) / 100).toFixed(2) +'x', '\t\tHash: ' + serverSeed);
}
var terminatingHash = genGameHash(serverSeed);
console.log('The final hash is: ', terminatingHash);
Using our chosen starting serverSeed, the hash terminating the chain is 281baeeb0f2dc9c9a0875b7362483a50dfd7e37a33a75d82ed9aed82bcb53544
!shrug
Please notice: litecoin.win is formerly known as ltcrash.com and bustacoin.com. See https://bitcointalksearch.org/topic/tcrash-crowdsourced-bustabit-like-litecoin-casino-2782356
This will reuse the idea posted by Ryan and used for Bustabit.
This is an event to prove litecoin.win is fair.
The reference code (javascript) is as follows:
The method to create the hash chain is simply sha256:
The method to convert a game hash, mix it with the picked client seed to a litecoin.win multiplier:
The chain could be generated with code such as:
Using our chosen starting serverSeed, the hash terminating the chain is 281baeeb0f2dc9c9a0875b7362483a50dfd7e37a33a75d82ed9aed82bcb53544
This will reuse the idea posted by Ryan and used for Bustabit.
This is an event to prove litecoin.win is fair.
- Starting with a secret seed I've generated a chain of 10,000,000 SHA256 hashes. Each element is the hash of the lowercase, hexadecimal string representation of the previous hash. The hash of the chain's last element is: 281baeeb0f2dc9c9a0875b7362483a50dfd7e37a33a75d82ed9aed82bcb53544
- litecoin.win will play through that chain of hashes, in reverse order, and use the hashes to determine the crash point.
- To avoid criticism that the Server Secret used in step 1 was carefully chosen to generate lots of "bad" crash points, each hash in the chain will be salted with a client seed, which we have no control of.
The client seed will be the block hash of a Litecoin block that hasn't yet been mined: block 507084
The reference code (javascript) is as follows:
The method to create the hash chain is simply sha256:
Code:
function genGameHash(serverSeed) {
return crypto.createHash('sha256').update(serverSeed).digest('hex');
}
The method to convert a game hash, mix it with the picked client seed to a litecoin.win multiplier:
Code:
function crashPointFromHash(serverSeed, clientSeed) {
function divisible(hash, mod) {
// We will read in 4 hex at a time, but the first chunk might be a bit smaller
// So ABCDEFGHIJ should be chunked like AB CDEF GHIJ
var val = 0;
var o = hash.length % 4;
for (var i = o > 0 ? o - 4 : 0; i < hash.length; i += 4) {
val = ((val << 16) + parseInt(hash.substring(i, i+4), 16)) % mod;
}
return val === 0;
}
var hash = crypto.createHmac('sha256', serverSeed).update(clientSeed).digest('hex');
/* In 1 of 101 games the game crashes instantly. */
if (divisible(hash, 101))
return 0;
/* Use the most significant 52-bit from the hash
to calculate the crash point */
var h = parseInt(hash.slice(0,52/4),16);
var e = Math.pow(2,52);
return Math.floor((100 * e - h) / (e - h));
}
The chain could be generated with code such as:
Code:
var serverSecret = 'secret';
var clientSeed = '0000examplehash';
var gamesToGenerate = 1e7;
var serverSeed = serverSecret;
for (var game = gamesToGenerate; game > 0; --game) {
serverSeed = genGameHash(serverSeed);
console.log('Game ' + game + ' has a crash point of ' + (crashPointFromHash(serverSeed, clientSeed) / 100).toFixed(2) +'x', '\t\tHash: ' + serverSeed);
}
var terminatingHash = genGameHash(serverSeed);
console.log('The final hash is: ', terminatingHash);
Using our chosen starting serverSeed, the hash terminating the chain is 281baeeb0f2dc9c9a0875b7362483a50dfd7e37a33a75d82ed9aed82bcb53544
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