Just to describe in greater detail how we prove our bets are truely verifiable, see the receipt JSON printed below.
Excess bets have been removed to improve readability and the JSON keys have been ordered in term of relevence.
After creating the account, before the player is allowed to place a bet, they must submit a signed patch statement to the service, to say they accept the following fields on the account, this must be signed with the Bitcoin address generated in the players browser;
* userid
* sign_address
* deposit_address
* return_address
This forms as a http post string, which is signed as printed below.
"PATCH /api/account\n\nuserid=1000&return_address=1FEi17iu84DmigLM9zeBfNVWzFyZYk3FGb&sign_address=1DQ6MQx5RNSk3T8evGygp95zT4jmBxXP3E&deposit_address=1KU8GojtQTkPvqWGbj9UHXrgx49h1mNXvP"
The service will then also sign this request if it is considered valid, so the player also has proof that the deposit_address belongs to Dice64, should there be and reason for a dispute.
Then for every bet you sign a request containing the following fields;
* below
* amount
* nonce
* secret_hash
* multiplier
This will be a string similar to the following
"POST /api/account/bet\n\nbelow=32&amount=39000&nonce=2690345304&secret_hash=7f4ad5fb7eed63d2611b43319ec208e14395dcb71d02af678cd55c07a860a4ed&multiplier=1.980"
The service will check to ensure your signature is valid, before signing the request with the service address (1Dice64ckqzrBwEum3rDW1cKPodpvSKuEX) and returning the response.
This method ensures that we cannot at any point after the bet has been placed change any of the variables in the bet to alter the outcome. Both the player and the service have a copy of the deposit address and full list of bet requests signed by each other, as proof of anything that could have affected the players balance.
We have accountability toward every satoshi that you deposit, there is no possibility that your funds can just dissappear or be altered without us having a signed request by the player to place a bet with certain parameters which we cannot alter.
Please forward me any questions you may have.
See example of a receipt below:
{
"bet_list": [
{
"secret": "a8758b97ff72f0fcd7744ef8c9458b336f04e85d3b098388e95855a621beb918",
"secret_hash": "7f4ad5fb7eed63d2611b43319ec208e14395dcb71d02af678cd55c07a860a4ed",
"nonce": 2690345304,
"amount_placed": 39000,
"house_edge": "0.0100",
"multiplier": "1.980",
"combined_hash": "39c2176e9757844980ac26bacd90d2f5e0089b7996dfad5dc06fd91f0092820a",
"timestamp": 1375630684,
"below": 32,
"result": 10,
"won": true,
"bet_statement": "POST /api/account/bet\n\nbelow=32&amount=39000&nonce=2690345304&secret_hash=7f4ad5fb7eed63d2611b43319ec208e14395dcb71d02af678cd55c07a860a4ed&multiplier=1.980",
"bet_statement_player_sig": "HGx93DlUYwF85a2bcZWh++HuyZ+s4u70Z6lhXa3v00LpJwlh96/9fev98CcSj12dgDg57qm9sg3R/wFCeyN8Lvc=",
"bet_statement_service_sig": "HFqa7wUksX/NbEuq2AGmgRVK8TDxU5uBNynIC54Eyjwb9V26q7CW/8rbpRG1IYdZ6I0zNhZnlv9LAqD3vg8ySs4=",
"amount_won": 77220,
"profit": 38220,
"id": 1004,
"owner_id": 1000
}, ...
],
"nickname": "User 1000",
"active": false,
"expire_time": 1375630693,
"balance": 3921220,
"sign_address": "1DQ6MQx5RNSk3T8evGygp95zT4jmBxXP3E",
"deposit_address": "1KU8GojtQTkPvqWGbj9UHXrgx49h1mNXvP",
"return_address": "1FEi17iu84DmigLM9zeBfNVWzFyZYk3FGb",
"amount_placed": 156000,
"amount_won": 77220,
"profit": -78780,
"bets_placed": 4,
"bets_won": 1,
"patch_statement": "PATCH /api/account\n\nuserid=1000&return_address=1FEi17iu84DmigLM9zeBfNVWzFyZYk3FGb&sign_address=1DQ6MQx5RNSk3T8evGygp95zT4jmBxXP3E&deposit_address=1KU8GojtQTkPvqWGbj9UHXrgx49h1mNXvP",
"patch_statement_player_sig": "Gy/fpaYGDEaqaVxyUKc9y8X3I8x3cPBq9GOuGWe5c54Lhcp2pt/aHuatV38qo/48GslN/m3g9X1F2a5PYuteygc=",
"patch_statement_service_sig": "HASW/37Ez7qP6NuJqlWy8CVC2ExXr7UETCtnZg7J4zWLUtwSPdCLZJL+JIipfTJV1/KwEv5dXE/+8L0/R2xxpDw=",
"userid": 1000,
"msg": "Withdrawl Successful",
"withdrawal_txid": "e5185edad6bd33cad9086b189aaef71302eedf4a2d3114923071fac1c4bb45a2",
"withdrawal_hex": "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",
"deposit_list": [
{
"n": 0,
"value": 2000000,
"txid": "96f457e5e17936fdf9fe5e17d89395fb214d809047592ec8f4134699a0a63e28"
},
{
"n": 0,
"value": 2000000,
"txid": "97c6ea802afbd5c1509e2b56afc3b99d6bf161fe17ed83ab9684e59050962bea"
}
]
}
