Transactions Costs

Sizes and execution budgets for Hydra protocol transactions. Note that unlisted parameters are currently using arbitrary values and results are not fully deterministic and comparable to previous runs.

Metadata
Generated at	2023-08-25 14:17:06.563390092 UTC
Max. memory units	14000000
Max. CPU units	10000000000
Max. tx size (kB)	16384

Script summary

Name	Hash	Size (Bytes)
νInitial	3ffaf6b87df35cb01a52eb23032b8f0b1a2a3ad3acf0930abc9c833a	4150
νCommit	e4c32d6dc83b2917aa7805571f30437ad98b6d20d821d34d45943755	2093
νHead	8508839dfce39b6be65c018ce124ab549238e1b2ed08fb6588e5601f	8799
μHead	7e939052f278f7721cb1f98c3f2ca646827df9314a7e0d0168765b49*	4055

• The minting policy hash is only usable for comparison. As the script is parameterized, the actual script is unique per Head.

Cost of Init Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	4652	11.17	4.43	0.48
2	4854	13.17	5.20	0.51
3	5059	15.28	6.02	0.54
5	5469	19.15	7.51	0.60
10	6491	29.64	11.57	0.76
45	13670	99.83	38.69	1.84

Cost of Commit Transaction

This is using ada-only outputs for better comparability.

UTxO	Tx size	% max Mem	% max CPU	Min fee ₳
1	595	12.67	4.97	0.31
2	787	16.41	6.66	0.37
3	975	20.37	8.42	0.42
5	1348	28.55	12.04	0.53
10	2288	51.35	21.96	0.82
18	3781	95.26	40.52	1.38

Cost of CollectCom Transaction

Parties	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
1	57	813	24.41	9.69	0.45
2	114	1136	36.76	14.76	0.60
3	169	1454	54.66	21.99	0.81
4	227	1776	73.97	29.89	1.04
5	281	2094	94.76	38.46	1.29

Cost of Close Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	694	17.67	8.24	0.38
2	913	19.45	9.84	0.42
3	1152	20.72	11.26	0.45
5	1553	24.32	14.43	0.52
10	2632	32.73	22.16	0.69
50	10645	93.19	79.73	1.95

Cost of Contest Transaction

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	722	23.02	10.27	0.44
2	940	24.98	11.93	0.48
3	1111	25.95	13.04	0.50
5	1580	29.96	16.41	0.58
10	2614	39.41	24.37	0.76
44	9412	99.41	76.24	1.92

Cost of Abort Transaction

Some variation because of random mixture of still initial and already committed outputs.

Parties	Tx size	% max Mem	% max CPU	Min fee ₳
1	4867	21.62	9.29	0.61
2	5353	36.46	15.87	0.79
3	5775	55.02	24.06	1.02
4	6206	76.30	33.45	1.28
5	6092	86.74	37.59	1.39

Cost of FanOut Transaction

Involves spending head output and burning head tokens. Uses ada-only UTxO for better comparability.

Parties	UTxO	UTxO (bytes)	Tx size	% max Mem	% max CPU	Min fee ₳
5	0	0	4676	9.05	3.80	0.46
5	1	57	4708	10.10	4.50	0.47
5	5	284	4850	15.61	7.80	0.55
5	10	570	5028	21.91	11.68	0.63
5	20	1140	5387	35.29	19.78	0.82
5	30	1705	5749	48.26	27.71	0.99
5	40	2276	6107	61.30	35.66	1.17
5	50	2845	6468	74.70	43.77	1.35
5	69	3928	7152	99.68	58.98	1.70