Topic: phun.io - Provably Fair Seeding Event (Read 410 times)
Scam
Block 563470 was mined.
Client seed: 000000000000000006e7d2f3765c2616d250083403fab8815143be977b35adaa
The 2 millionth game: https://www.phun.io/game/2000000
Thank you, hope to see you guys on!
https://www.phun.io
Client seed: 000000000000000006e7d2f3765c2616d250083403fab8815143be977b35adaa
The 2 millionth game: https://www.phun.io/game/2000000
Thank you, hope to see you guys on!
https://www.phun.io
Due to a little problem we encountered, we will be doing the seeding event again starting from game 2,000,000.
Games between 1,000,000 - 1,999,999 can still be verified using the previous final hash: ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a
This will reuse the idea posted by Ryan and used for Bustabit v1.
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 money pot multiplier:
The chain could be generated with code such as:
Using our chosen starting serverSeed, the hash terminating the chain is b099a967f8154d3e833f29b9df58378cfe3bbb78a757f3e84c5b6565035ed211. That is to say, the 2 millionth game's hash played under the new provably fair scheme, when hashed will be b099a967f8154d3e833f29b9df58378cfe3bbb78a757f3e84c5b6565035ed211.
Play now: https://www.phun.io
Games between 1,000,000 - 1,999,999 can still be verified using the previous final hash: ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a
This will reuse the idea posted by Ryan and used for Bustabit v1.
- A chain of 10 million (1e7) sha256 hashes was generated, starting with a Server Secret that has been repeatedly fed the output of sha256 hash back into itself 10 million times.
The final hash in the chain is: b099a967f8154d3e833f29b9df58378cfe3bbb78a757f3e84c5b6565035ed211, by publicizing it here we are preventing any ability to pick an alternate sha256 chain. - phun.io 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 Bitcoin SV block that hasn't yet been mined: block 563470
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 money pot 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 = 'If you knew this, you could steal all my money';
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 terminating hash is: ', terminatingHash);
Using our chosen starting serverSeed, the hash terminating the chain is b099a967f8154d3e833f29b9df58378cfe3bbb78a757f3e84c5b6565035ed211. That is to say, the 2 millionth game's hash played under the new provably fair scheme, when hashed will be b099a967f8154d3e833f29b9df58378cfe3bbb78a757f3e84c5b6565035ed211.
Play now: https://www.phun.io
We are quoting this and have also generated a snapshot as proof we won't edit the post: https://web.archive.org/web/20190102121221/https://bitcointalk.org/index.php?topic=3187788
Due to a little problem we encountered, we will be doing the seeding event again starting from game 2,000,000.
Games between 1,000,000 - 1,999,999 can still be verified using the previous final hash: ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a
This will reuse the idea posted by Ryan and used for Bustabit v1.
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 money pot multiplier:
The chain could be generated with code such as:
Using our chosen starting serverSeed, the hash terminating the chain is b099a967f8154d3e833f29b9df58378cfe3bbb78a757f3e84c5b6565035ed211. That is to say, the 2 millionth game's hash played under the new provably fair scheme, when hashed will be b099a967f8154d3e833f29b9df58378cfe3bbb78a757f3e84c5b6565035ed211.
Play now: https://www.phun.io
Games between 1,000,000 - 1,999,999 can still be verified using the previous final hash: ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a
This will reuse the idea posted by Ryan and used for Bustabit v1.
- A chain of 10 million (1e7) sha256 hashes was generated, starting with a Server Secret that has been repeatedly fed the output of sha256 hash back into itself 10 million times.
The final hash in the chain is: b099a967f8154d3e833f29b9df58378cfe3bbb78a757f3e84c5b6565035ed211, by publicizing it here we are preventing any ability to pick an alternate sha256 chain. - phun.io 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 Bitcoin SV block that hasn't yet been mined: block 563470
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 money pot 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 = 'If you knew this, you could steal all my money';
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 terminating hash is: ', terminatingHash);
Using our chosen starting serverSeed, the hash terminating the chain is b099a967f8154d3e833f29b9df58378cfe3bbb78a757f3e84c5b6565035ed211. That is to say, the 2 millionth game's hash played under the new provably fair scheme, when hashed will be b099a967f8154d3e833f29b9df58378cfe3bbb78a757f3e84c5b6565035ed211.
Play now: https://www.phun.io
Block 522752 was mined.
Client seed: 00000000000000000017d87fc6443429ef4059f2bde075ddab289a34e8a0a1de
The first game: https://www.phun.io/game/1000000
Thank you, hope to see you guys on!
https://www.phun.io
Client seed: 00000000000000000017d87fc6443429ef4059f2bde075ddab289a34e8a0a1de
The first game: https://www.phun.io/game/1000000
Thank you, hope to see you guys on!
https://www.phun.io
I have generated a snapshot as proof I won't edit the post: https://web.archive.org/web/20180324015547/https://bitcointalk.org/index.php?topic=3187788.0
Welcome to the phun.io Provably Fair Seeding Event!
This will reuse the idea posted by Ryan and used for Bustabit v1.
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 money pot multiplier:
The chain could be generated with code such as:
Using our chosen starting serverSeed, the hash terminating the chain is ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a. That is to say, the first game's hash played under the new provably fair scheme, when hashed will be ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a.
Play now: https://www.phun.io
This will reuse the idea posted by Ryan and used for Bustabit v1.
- A chain of 10 million (1e7) sha256 hashes was generated, starting with a Server Secret that has been repeatedly fed the output of sha256 hash back into itself 10 million times.
The final hash in the chain is: ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a, by publicizing it here we are preventing any ability to pick an alternate sha256 chain. - phun.io 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 Bitcoin Cash block that hasn't yet been mined: block 522752
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 money pot 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 = 'If you knew this, you could steal all my money';
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 terminating hash is: ', terminatingHash);
Using our chosen starting serverSeed, the hash terminating the chain is ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a. That is to say, the first game's hash played under the new provably fair scheme, when hashed will be ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a.
Play now: https://www.phun.io
I am quoting this so OP doesn't make changes.
Welcome to the phun.io Provably Fair Seeding Event!
This will reuse the idea posted by Ryan and used for Bustabit v1.
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 money pot multiplier:
The chain could be generated with code such as:
Using our chosen starting serverSeed, the hash terminating the chain is ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a. That is to say, the first game's hash played under the new provably fair scheme, when hashed will be ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a.
Play now: https://www.phun.io
This will reuse the idea posted by Ryan and used for Bustabit v1.
- A chain of 10 million (1e7) sha256 hashes was generated, starting with a Server Secret that has been repeatedly fed the output of sha256 hash back into itself 10 million times.
The final hash in the chain is: ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a, by publicizing it here we are preventing any ability to pick an alternate sha256 chain. - phun.io 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 Bitcoin Cash block that hasn't yet been mined: block 522752
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 money pot 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 = 'If you knew this, you could steal all my money';
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 terminating hash is: ', terminatingHash);
Using our chosen starting serverSeed, the hash terminating the chain is ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a. That is to say, the first game's hash played under the new provably fair scheme, when hashed will be ad699bff1c169b3553687720c5d4b4c22e9f729c12782730c7399264c3593d9a.
Play now: https://www.phun.io
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