Fairness – Play2x

Provably Fair

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Game

Client Seed

Server Seed

Nonce

Seeds to Bytes

HMAC_SHA512(server_seed, client_seed:nonce:0)

c2	3e	f7	3d	eb	4e	a4	e9	2a	3b	55	1b	44	3b	f7	30	14	f0	cf	63	46	d0	b1	67	44	2b	6c	9b	c6	d7	2b	b3	8a	55	8f	c0	e9	6	52	5b	d0	31	47	a	91	7c	24	35	d9	a5	44	a9	e7	e8	e8	7b	d7	e6	51	a2	3d	c5	68	c7
194	62	247	61	235	78	164	233	42	59	85	27	68	59	247	48	20	240	207	99	70	208	177	103	68	43	108	155	198	215	43	179	138	85	143	192	233	6	82	91	208	49	71	10	145	124	36	53	217	165	68	169	231	232	232	123	215	230	81	162	61	197	104	199

HMAC_SHA512(server_seed, client_seed:nonce:1)

af	88	9e	20	35	1e	7f	d6	ac	b6	80	c6	cd	4	d5	d	f7	11	17	6e	6b	23	5c	7	e6	51	8a	37	1e	94	e1	40	5c	f0	fe	ed	4b	c6	ac	4a	4c	18	14	60	5	ed	3e	ba	2a	68	58	3e	d	25	3c	59	65	70	6d	39	22	1f	66	56
175	136	158	32	53	30	127	214	172	182	128	198	205	4	213	13	247	17	23	110	107	35	92	7	230	81	138	55	30	148	225	64	92	240	254	237	75	198	172	74	76	24	20	96	5	237	62	186	42	104	88	62	13	37	60	89	101	112	109	57	34	31	102	86

Bytes to Number:

(194, 62, 247, 61, 235, 78, 164, 233) -> [0, ..., 39] = 30
	0.757812500000000000	(194 / (256 ^ 1))
+	0.000946044921875000	(062 / (256 ^ 2))
+	0.000014722347259521	(247 / (256 ^ 3))
+	0.000000014202669263	(061 / (256 ^ 4))
+	0.000000000213731255	(235 / (256 ^ 5))
+	0.000000000000277112	(078 / (256 ^ 6))
+	0.000000000000002276	(164 / (256 ^ 7))
+	0.000000000000000013	(233 / (256 ^ 8))
=	0.758773281685814371	(* 40)
=	30.350931267432574856

(42, 59, 85, 27, 68, 59, 247, 48) -> [0, ..., 38] = 6
	0.164062500000000000	(042 / (256 ^ 1))
+	0.000900268554687500	(059 / (256 ^ 2))
+	0.000005066394805908	(085 / (256 ^ 3))
+	0.000000006286427379	(027 / (256 ^ 4))
+	0.000000000061845640	(068 / (256 ^ 5))
+	0.000000000000209610	(059 / (256 ^ 6))
+	0.000000000000003428	(247 / (256 ^ 7))
+	0.000000000000000003	(048 / (256 ^ 8))
=	0.164967841297979478	(* 39)
=	6.433745810621199546

(20, 240, 207, 99, 70, 208, 177, 103) -> [0, ..., 37] = 3
	0.078125000000000000	(020 / (256 ^ 1))
+	0.003662109375000000	(240 / (256 ^ 2))
+	0.000012338161468506	(207 / (256 ^ 3))
+	0.000000023050233722	(099 / (256 ^ 4))
+	0.000000000063664629	(070 / (256 ^ 5))
+	0.000000000000738964	(208 / (256 ^ 6))
+	0.000000000000002456	(177 / (256 ^ 7))
+	0.000000000000000006	(103 / (256 ^ 8))
=	0.081799470651108278	(* 38)
=	3.108379884742114463

(68, 43, 108, 155, 198, 215, 43, 179) -> [0, ..., 36] = 9
	0.265625000000000000	(068 / (256 ^ 1))
+	0.000656127929687500	(043 / (256 ^ 2))
+	0.000006437301635742	(108 / (256 ^ 3))
+	0.000000036088749766	(155 / (256 ^ 4))
+	0.000000000180079951	(198 / (256 ^ 5))
+	0.000000000000763833	(215 / (256 ^ 6))
+	0.000000000000000597	(043 / (256 ^ 7))
+	0.000000000000000010	(179 / (256 ^ 8))
=	0.266287601500917404	(* 37)
=	9.852641255533944431

(138, 85, 143, 192, 233, 6, 82, 91) -> [0, ..., 35] = 19
	0.539062500000000000	(138 / (256 ^ 1))
+	0.001296997070312500	(085 / (256 ^ 2))
+	0.000008523464202881	(143 / (256 ^ 3))
+	0.000000044703483582	(192 / (256 ^ 4))
+	0.000000000211912266	(233 / (256 ^ 5))
+	0.000000000000021316	(006 / (256 ^ 6))
+	0.000000000000001138	(082 / (256 ^ 7))
+	0.000000000000000005	(091 / (256 ^ 8))
=	0.540368065449933654	(* 36)
=	19.453250356197610671

(208, 49, 71, 10, 145, 124, 36, 53) -> [0, ..., 34] = 28
	0.812500000000000000	(208 / (256 ^ 1))
+	0.000747680664062500	(049 / (256 ^ 2))
+	0.000004231929779053	(071 / (256 ^ 3))
+	0.000000002328306437	(010 / (256 ^ 4))
+	0.000000000131876732	(145 / (256 ^ 5))
+	0.000000000000440536	(124 / (256 ^ 6))
+	0.000000000000000500	(036 / (256 ^ 7))
+	0.000000000000000003	(053 / (256 ^ 8))
=	0.813251915054465702	(* 35)
=	28.463817026906298224

(217, 165, 68, 169, 231, 232, 232, 123) -> [0, ..., 33] = 28
	0.847656250000000000	(217 / (256 ^ 1))
+	0.002517700195312500	(165 / (256 ^ 2))
+	0.000004053115844727	(068 / (256 ^ 3))
+	0.000000039348378778	(169 / (256 ^ 4))
+	0.000000000210093276	(231 / (256 ^ 5))
+	0.000000000000824230	(232 / (256 ^ 6))
+	0.000000000000003220	(232 / (256 ^ 7))
+	0.000000000000000007	(123 / (256 ^ 8))
=	0.850178042870456729	(* 34)
=	28.906053457595529466

(215, 230, 81, 162, 61, 197, 104, 199) -> [0, ..., 32] = 27
	0.839843750000000000	(215 / (256 ^ 1))
+	0.003509521484375000	(230 / (256 ^ 2))
+	0.000004827976226807	(081 / (256 ^ 3))
+	0.000000037718564272	(162 / (256 ^ 4))
+	0.000000000055479177	(061 / (256 ^ 5))
+	0.000000000000699885	(197 / (256 ^ 6))
+	0.000000000000001443	(104 / (256 ^ 7))
+	0.000000000000000011	(199 / (256 ^ 8))
=	0.843358137235346583	(* 33)
=	27.830818528766435804

(175, 136, 158, 32, 53, 30, 127, 214) -> [0, ..., 31] = 21
	0.683593750000000000	(175 / (256 ^ 1))
+	0.002075195312500000	(136 / (256 ^ 2))
+	0.000009417533874512	(158 / (256 ^ 3))
+	0.000000007450580597	(032 / (256 ^ 4))
+	0.000000000048203219	(053 / (256 ^ 5))
+	0.000000000000106581	(030 / (256 ^ 6))
+	0.000000000000001762	(127 / (256 ^ 7))
+	0.000000000000000012	(214 / (256 ^ 8))
=	0.685678370345266686	(* 32)
=	21.941707851048533939

(172, 182, 128, 198, 205, 4, 213, 13) -> [0, ..., 30] = 20
	0.671875000000000000	(172 / (256 ^ 1))
+	0.002777099609375000	(182 / (256 ^ 2))
+	0.000007629394531250	(128 / (256 ^ 3))
+	0.000000046100467443	(198 / (256 ^ 4))
+	0.000000000186446414	(205 / (256 ^ 5))
+	0.000000000000014211	(004 / (256 ^ 6))
+	0.000000000000002956	(213 / (256 ^ 7))
+	0.000000000000000001	(013 / (256 ^ 8))
=	0.674659775290837316	(* 31)
=	20.914453034015956234

Number Shuffling:

After converting the bytes to numbers, we need to shuffle the values to map each number to an available cell.

We begin by creating an array with all possible outcomes.

In a loop, we select a number, multiply it by the number of remaining outcomes, and pick the item at that index.

Once selected, the result is removed from the array and cannot be selected again.

This shuffling method is called: Fisher–Yates Shuffle (WIKIPEDIA)

# Pick	Number	Multiplier	Number * Multiplier	Result
1	0.7587732816858144	40	30	31
2	0.16496784129797948	39	6	7
3	0.08179947065110828	38	3	4
4	0.2662876015009174	37	9	12
5	0.5403680654499337	36	19	23
6	0.8132519150544657	35	28	34
7	0.8501780428704567	34	28	35
8	0.8433581372353466	33	27	33
9	0.6856783703452667	32	21	26
10	0.6746597752908373	31	20	25

All bets with an ID lower than #303200162 used the HMAC_SHA256 function. To verify older games,

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Version: 16.06

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registered address – Curaçao, Abraham de Veerstraat 9

Play2x is owned and operated by Overplayed Ltd. registration: 15726, registered address: Hamchako, Mutsamudu, Autonomous Island of Anjouan Union of Comoros. Contact us help@play2x.com. Play2x is licensed and regulated by the Government of the Autonomous Island of Anjouan, Union of Comoros and operates under License No. ALSI-132405037-FI3. Play2x has passed all regulatory compliance and is legally authorized to conduct gaming operations for any and all games of chance and wagering.

c2	3e	f7	3d	eb	4e	a4	e9	2a	3b	55	1b	44	3b	f7	30	14	f0	cf	63	46	d0	b1	67	44	2b	6c	9b	c6	d7	2b	b3	8a	55	8f	c0	e9	6	52	5b	d0	31	47	a	91	7c	24	35	d9	a5	44	a9	e7	e8	e8	7b	d7	e6	51	a2	3d	c5	68	c7
194	62	247	61	235	78	164	233	42	59	85	27	68	59	247	48	20	240	207	99	70	208	177	103	68	43	108	155	198	215	43	179	138	85	143	192	233	6	82	91	208	49	71	10	145	124	36	53	217	165	68	169	231	232	232	123	215	230	81	162	61	197	104	199

af	88	9e	20	35	1e	7f	d6	ac	b6	80	c6	cd	4	d5	d	f7	11	17	6e	6b	23	5c	7	e6	51	8a	37	1e	94	e1	40	5c	f0	fe	ed	4b	c6	ac	4a	4c	18	14	60	5	ed	3e	ba	2a	68	58	3e	d	25	3c	59	65	70	6d	39	22	1f	66	56
175	136	158	32	53	30	127	214	172	182	128	198	205	4	213	13	247	17	23	110	107	35	92	7	230	81	138	55	30	148	225	64	92	240	254	237	75	198	172	74	76	24	20	96	5	237	62	186	42	104	88	62	13	37	60	89	101	112	109	57	34	31	102	86

c2	3e	f7	3d	eb	4e	a4	e9	2a	3b	55	1b	44	3b	f7	30	14	f0	cf	63	46	d0	b1	67	44	2b	6c	9b	c6	d7	2b	b3	8a	55	8f	c0	e9	6	52	5b	d0	31	47	a	91	7c	24	35	d9	a5	44	a9	e7	e8	e8	7b	d7	e6	51	a2	3d	c5	68	c7
194	62	247	61	235	78	164	233	42	59	85	27	68	59	247	48	20	240	207	99	70	208	177	103	68	43	108	155	198	215	43	179	138	85	143	192	233	6	82	91	208	49	71	10	145	124	36	53	217	165	68	169	231	232	232	123	215	230	81	162	61	197	104	199

af	88	9e	20	35	1e	7f	d6	ac	b6	80	c6	cd	4	d5	d	f7	11	17	6e	6b	23	5c	7	e6	51	8a	37	1e	94	e1	40	5c	f0	fe	ed	4b	c6	ac	4a	4c	18	14	60	5	ed	3e	ba	2a	68	58	3e	d	25	3c	59	65	70	6d	39	22	1f	66	56
175	136	158	32	53	30	127	214	172	182	128	198	205	4	213	13	247	17	23	110	107	35	92	7	230	81	138	55	30	148	225	64	92	240	254	237	75	198	172	74	76	24	20	96	5	237	62	186	42	104	88	62	13	37	60	89	101	112	109	57	34	31	102	86

c2	3e	f7	3d	eb	4e	a4	e9	2a	3b	55	1b	44	3b	f7	30	14	f0	cf	63	46	d0	b1	67	44	2b	6c	9b	c6	d7	2b	b3	8a	55	8f	c0	e9	6	52	5b	d0	31	47	a	91	7c	24	35	d9	a5	44	a9	e7	e8	e8	7b	d7	e6	51	a2	3d	c5	68	c7
194	62	247	61	235	78	164	233	42	59	85	27	68	59	247	48	20	240	207	99	70	208	177	103	68	43	108	155	198	215	43	179	138	85	143	192	233	6	82	91	208	49	71	10	145	124	36	53	217	165	68	169	231	232	232	123	215	230	81	162	61	197	104	199

af	88	9e	20	35	1e	7f	d6	ac	b6	80	c6	cd	4	d5	d	f7	11	17	6e	6b	23	5c	7	e6	51	8a	37	1e	94	e1	40	5c	f0	fe	ed	4b	c6	ac	4a	4c	18	14	60	5	ed	3e	ba	2a	68	58	3e	d	25	3c	59	65	70	6d	39	22	1f	66	56
175	136	158	32	53	30	127	214	172	182	128	198	205	4	213	13	247	17	23	110	107	35	92	7	230	81	138	55	30	148	225	64	92	240	254	237	75	198	172	74	76	24	20	96	5	237	62	186	42	104	88	62	13	37	60	89	101	112	109	57	34	31	102	86