Arqma Blockchain Explorer

(No Javascript | No Cookies | No Web Analytics Trackers | No Images | Open Sourced)

Server Time: 2026-07-29 16:58:27 | Transaction Pool | Autorefresh is OFF | Go to stagenet explorer | Go to mainnet explorer

Network difficulty: 187000148 | Hard fork: v19 | Hash rate: 1.558 MH/s | Staking Requirement: 100000.000000000 ARQ | Fee: 0.000000050/byte + 0.000090000/output | Median block size limit: 1024.00 kB | Data From 00:00:56 [h:m:s] ago

TX Types Legend: Registration: 🏁 | Contribution: ⚑ | Recommission: 👍 | Decommission: 👎 | Deregister: 🚫 | IP Change Penalty: 📋 | Stake Unlock: 🔓

Arqma emission (fees) is 39473291.239012659 (1047.444407159) as of 1993573 block

Transaction Pool

(No Of TXs: 0, Size: 0.0000 kB, Updated every 5 seconds)

Age [HH:MM:SS]

Type

Transaction Hash

Fee/Per kB

In/Out

TX Size [kB]

Transactions In Older Blocks

(Median size of 100 blocks: 1024.00 kB)

Height	Age [y:d:h:m:s]	Size [kB]	Type	Transaction Hash	Fee	Outputs	In/Out	TX Size [kB]
1661833	01:148:20:18:43	0.0996		0ad3a8e47b9e7275416a2b68669dd8e8e01318000a8fd833c09c4421a9508a22	N/A	10.414535486	0/1	0.0996
1661832	01:148:20:19:28	2.7451		e075a12bbf52e2d37dd11582184b8d6e56b603c39e1290dbf703ddfd081f47a4	N/A	10.414545872	0/1	0.0996
				0677357ce9c99d8e58b79610b9f90c7a57bb7b0a8288c6716fc47f75e2b81447	0.000005420	?	2/2	2.6455
1661831	01:148:20:20:28	0.0996		464317019bd8e7c6f7c4f0ade98970b657a2b097dc7cedb854315d47cd2124a7	N/A	10.414545418	0/1	0.0996
1661830	01:148:20:21:52	0.0996		02fd4acf511a13c26d90d0fd3825419938acd9d3ec0cfdaf6225feec1b21e746	N/A	10.414550384	0/1	0.0996
1661829	01:148:20:25:59	0.0996		f46dcf96994af512645795e400f7f21aacc9689d282ab0904a88fc59301ac39d	N/A	10.414555350	0/1	0.0996
1661828	01:148:20:26:12	0.0996		e798d77d2f17580f304d72178f7f02fdae554ae256a4a818919428633cf9b33a	N/A	10.414560316	0/1	0.0996
1661827	01:148:20:34:45	1.9326		ced328a9b82ceb7f175536a79d528be4f9415f0453ca5afe2758493a6f77aec0	N/A	10.414569042	0/1	0.0996
				48cace432391689291b6b5478348d6a32c13e82d821ebbafbc570fdb63876818	0.000003760	?	1/2	1.8330
1661826	01:148:20:42:10	2.7402		15080b6d2c1323d3878eaa809d381166f3b700fd5eb2083068c7cf86f59c7e44	N/A	10.414575658	0/1	0.0996
				3a8cf801128210e00866a40c117aca9511bf00c7079b3277be08947e00d7dca8	0.000005410	?	2/2	2.6406
1661825	01:148:20:44:02	0.1641		e65c0af4764390f9060d8cca9928c189823463f67111be477a71445cebde6e1d	N/A	10.414575214	0/1	0.1641
1661824	01:148:20:44:12	6.0391		5342c4bca3369e8338d1ede3455f816687443632b48d1eb3120ec0771bdb3a83	N/A	10.414586190	0/1	0.1641
				5e0a49c5a4e225d1f418345a6c001a8f38bc020bd4bef32ba012847ea63bc972	0.000006010	?	6/2	5.8750
1661823	01:148:20:48:29	0.0996		6bde990098d74af9f4304f525422fd2dd1ea1b858b062d159b61c0dd41b6db72	N/A	10.414585146	0/1	0.0996
1661822	01:148:20:49:04	0.0996		2a647c4423c659392e92c4f79790f64226530ec75863b51a9aa64c094671dd8e	N/A	10.414590112	0/1	0.0996
1661821	01:148:20:49:32	1.9326		1ad041fc808ec14bb4624585b1bc130654e5d0a48537aef3047941255005628d	N/A	10.414598838	0/1	0.0996
				260d25f2613c3fe28dbe0f199c32561a74c83409fc08659e1cb54a041b46ce04	0.000003760	?	1/2	1.8330
1661820	01:148:20:51:27	12.4990		aa5e0c3df16bb0f740541d8160a44bf992055a6e5a7482494c4aa404f9514405	N/A	10.414625464	0/1	0.0996
				2945561df2d9dc46a2110a6def810f8dca2188edde6ba7e9c106ad6c3c3ebadf	0.000003770	?	1/2	1.8369
				097c370259b8fab90faa5691a2b332d1f3c189ff85408c184cfad23215e48df2	0.000005420	?	2/2	2.6426
				c385e32e92a8e1de5ed89aa51dcefe401f2fa18587af1490f15cba264dfbf916	0.000005410	?	2/2	2.6396
				608a17d7438f1655d42e28d01ba119864ecf100237dc5098fe53fbfad8097589	0.000005420	?	2/2	2.6445
				6525c46f4935529423f9cdecfb0483f28922ebd393285d7a96ceecc38cd0e711	0.000005400	?	2/2	2.6357
1661819	01:148:20:53:23	0.0996		7388a3b76c8658ddbaa96b9f00653b3b77c94e1038293042cd5d4442d1f81c11	N/A	10.414605010	0/1	0.0996
1661818	01:148:20:55:57	0.1641		6a94a5bd2ecc44d2fe43923d5c06f24ab6cd3c4d688494c9315a24cb0b723989	N/A	10.414609976	0/1	0.1641
1661817	01:148:20:56:56	0.0996		6fffdf9c805b78f8ba6d18628923dad0de953776a425c0671c6c31898990f282	N/A	10.414614942	0/1	0.0996
1661816	01:148:20:57:03	0.0996		bd24a85db8f8e0a95416bbe2652f5d9ed883bbec558396e1726f34f24d1f1e5f	N/A	10.414619909	0/1	0.0996
1661815	01:148:20:59:18	0.0996		5dac7228ee84f9ebc32b118f11f3624cb82d7d5b5fa3277263c7c665cbe5c28d	N/A	10.414624875	0/1	0.0996
1661814	01:148:21:06:02	0.1641		94a84fd1a9124b1d85e4072e9f43c43891300b0bc84c97928212cc695a11767b	N/A	10.414629841	0/1	0.1641

Current Page: 16587/99678

0 service nodes awaiting contributions, 0 decommissioned service nodes, and 51 active service nodes.

Service Nodes Awaiting Contributions (0)

Public Key

Contributors

Operator Fee (%)

Contributed

Open For Contribution

Min. Contribution

Expiry Date UTC (Estimated)

Inactive/Decommissioned Service Nodes (0)

(These service nodes are currently decommissioned for failing network obligations, are not earning rewards, and face deregistration soon)

Public Key

Contributors

Operator Fee (%)

Decommission Height

Last Uptime Proof

Blocks until Dereg.

Active Service Nodes (51)

Public Key	Contributors	Operator Fee (%)	Staking Requirement	Last Reward Height	Last Uptimr Proof	Expiry Date UTC (Estimated)
781efae048bb90829a0c7ce9f4c9c34e572d236955e91f4b3c86a85effa632d5	3/12	50	100000.000000000	1993523	00:57:05	Staking Infinitely
ab1264fe8acaba585069c1fb0afe0804a97bc00ef269c17231b7994024851111	4/12	35	100000.000000000	1993524	00:33:56	Staking Infinitely
94b370885630009cbe68165b641e51343bcb90aba151434230424f6e3ec4a6d2	2/12	66	100000.000000000	1993525	01:05:03	Staking Infinitely
30f9c742e16707fb9b0c9c2078ed750595e297e4a0f75b972794766e25447cfc	1/12		100000.000000000	1993526	00:53:12	Staking Infinitely
d3e9da49cf45266c3a0270253b0e2921dcbf939cfa52e5de31130d9ef5fb921d	4/12	50	100000.000000000	1993527	00:45:41	Staking Infinitely
53b13c3b12f633765fad6a3af5e9910067af666c8c35940a5d0190ef05e86016	1/12		100000.000000000	1993528	00:51:02	Staking Infinitely
2083e7a16cef72aced08ba92106bf9cff6725bede937ff82c1156fd7fa2f3c7a	1/12		100000.000000000	1993529	00:12:08	Staking Infinitely
64704fc7e91c0d73d5a05f608f0899b45e99fa711383057dcc59064a98c257ab	4/12	66	100000.000000000	1993530	00:13:04	Staking Infinitely
c93716c955d7ced8be22fb112a0344fabde019949f2b26fedff327172ba6a973	2/12	66	100000.000000000	1993531	00:47:59	Staking Infinitely
a5ae405941249e1cc812bdae01081cdbfe7963f1bc8d299e444effc2b6930195	2/12	30	100000.000000000	1993532	00:04:21	🔓 2026-08-12 00:22:27 (in 13 days)
+ 41 more ↪

click here to see the full service node lists (at most only 10 of each list are shown here)

Uptime quorum for height 1993571)

Validators 10:
Public Key	Last Uptime Proof	Expiry Date UTC (Estimated)
0: f0e1913158cd650f98270490ded011fc138bb0a18bce9dcb796276b58f32340a	00:02:10	Staking Infinitely (N/A)
1: b42fb5a319f9ef592ada30e483b64431d05386ba5692727d0e64a15802be3ef5	00:15:12	Staking Infinitely (N/A)
2: 80a869c7963e4c92ccd1032749e29b33e7e943f4e70cbe8d9a3110115a0a53e3	00:43:11	Staking Infinitely (N/A)
3: ca0113d6999df9187b7959b602c7557cf9658a274fd89948c5aead79eb95a510	00:54:02	Staking Infinitely (N/A)
4: f63e2a3a60e5d07f8fe0a32943c3f362d3d441c0ba771a997e9c893f16e4dff2	00:13:26	2026-08-12 00:24:27 (in 13 days)
5: cf8f65a97c31057a45dec63b065e23d0763c1ea88c7282fafd738e3e090ef01b	00:58:16	Staking Infinitely (N/A)
6: 050e45639e86a90ca465c5194642d9fee300ac170acdbb2c0144fc8ebaaf6b82	00:58:37	Staking Infinitely (N/A)
7: c98ab9fca45aec5e9c8ea6f7dd0660b3567e3691d3cfbc4e4b035e737706160b	00:28:59	Staking Infinitely (N/A)
8: 83b11eca71c4a2d77d256304fd422493ed4d290e3cb084bf76758d239fe9a0b4	00:24:32	Staking Infinitely (N/A)
9: 4a407bb5161d9ad488e4feb1ce4870d5076d223d24160476275f2e292c290d21	00:00:34	Staking Infinitely (N/A)
Nodes to test (41):
0: c9839bdce086483c6fae8ede8600e4410c5dcd2a431148689480ddfd4c6c9363	00:33:56	Staking Infinitely (N/A)
1: 5a67c6e399571ec4665cc61cc19a5e84eeab60cf51c4f75fac5eea24a33d87e0	00:58:06	Staking Infinitely (N/A)
2: a382ea37422bc7715fb954fd567ae77c7b8db3bf92a2d4ac48025e0122832641	01:04:58	Staking Infinitely (N/A)
3: c93716c955d7ced8be22fb112a0344fabde019949f2b26fedff327172ba6a973	00:47:59	Staking Infinitely (N/A)
4: 361f463346d3409705042d85617b51e1c61f8821cc3c21f16ce9034d5b761c1f	00:43:15	Staking Infinitely (N/A)
5: 53b13c3b12f633765fad6a3af5e9910067af666c8c35940a5d0190ef05e86016	00:51:02	Staking Infinitely (N/A)
6: b98ee2847b18dc4e46be8e384d59157a67a5366ee8b03553c519b520e147ef65	00:11:57	Staking Infinitely (N/A)
7: ab1264fe8acaba585069c1fb0afe0804a97bc00ef269c17231b7994024851111	00:33:56	Staking Infinitely (N/A)
8: 2f235e88eada0dcabd49b9f2ee0fcd1002dbfabfe7dc273dc445e1e8abc220c0	00:37:32	Staking Infinitely (N/A)
9: f9e9aa7608c8c134ff9c14ef92488c122b947fd27d8cfe31d6745546c462665b	00:04:23	Staking Infinitely (N/A)
+ 31 more ↪

Uptime quorum for height 1993570)

Validators 10:
Public Key	Last Uptime Proof	Expiry Date UTC (Estimated)
0: 75ed97a747c6b790917a62befd733ec67df8a7b5a9861baa432521eaa788d2e2	00:18:07	Staking Infinitely (N/A)
1: 94b370885630009cbe68165b641e51343bcb90aba151434230424f6e3ec4a6d2	01:05:03	Staking Infinitely (N/A)
2: 30f3281710c23bb2c9b11a8bc0a3f63876ad2d974a55f08db00dde2f1fce4f3e	00:28:06	Staking Infinitely (N/A)
3: a382ea37422bc7715fb954fd567ae77c7b8db3bf92a2d4ac48025e0122832641	01:04:58	Staking Infinitely (N/A)
4: c9839bdce086483c6fae8ede8600e4410c5dcd2a431148689480ddfd4c6c9363	00:33:56	Staking Infinitely (N/A)
5: 848ad910440f790d4a687cad83b333f99dec1fb47bae617c7a02db65b2f1c244	00:07:17	Staking Infinitely (N/A)
6: 5a67c6e399571ec4665cc61cc19a5e84eeab60cf51c4f75fac5eea24a33d87e0	00:58:06	Staking Infinitely (N/A)
7: 28f7c771d9cd63b4c3d5c8261c153f7e05f23f67a562dc5c39635445e1d1d268	00:55:08	Staking Infinitely (N/A)
8: b98ee2847b18dc4e46be8e384d59157a67a5366ee8b03553c519b520e147ef65	00:11:57	Staking Infinitely (N/A)
9: 45f9349a3ceee3a75d6142204286d37dacf81c1f9ec01a65e7b716269726635d	00:52:03	Staking Infinitely (N/A)
Nodes to test (41):
0: 3a695a55e9442573865950ec85b393e7ade3a76690b62d0e992f32f246943bd1	00:40:38	Staking Infinitely (N/A)
1: d3e9da49cf45266c3a0270253b0e2921dcbf939cfa52e5de31130d9ef5fb921d	00:45:41	Staking Infinitely (N/A)
2: e9ce4cbc023dd13600dd1b84e811838cccc09a169ab6cb51f537481242bddb1a	00:20:28	Staking Infinitely (N/A)
3: cf8f65a97c31057a45dec63b065e23d0763c1ea88c7282fafd738e3e090ef01b	00:58:16	Staking Infinitely (N/A)
4: 81ea05da87ecfe7d707a13ded483e5a0ee257c3ff802cd01742185bc87d803d9	00:22:46	Staking Infinitely (N/A)
5: f9e9aa7608c8c134ff9c14ef92488c122b947fd27d8cfe31d6745546c462665b	00:04:23	Staking Infinitely (N/A)
6: f0e1913158cd650f98270490ded011fc138bb0a18bce9dcb796276b58f32340a	00:02:10	Staking Infinitely (N/A)
7: a5ae405941249e1cc812bdae01081cdbfe7963f1bc8d299e444effc2b6930195	00:04:21	2026-08-12 00:22:27 (in 13 days)
8: 361f463346d3409705042d85617b51e1c61f8821cc3c21f16ce9034d5b761c1f	00:43:15	Staking Infinitely (N/A)
9: 33ef2ff577821dfc3e8ba0b6a7b62759f092c53d798cc1a9c5ba85f59f549efc	00:52:47	Staking Infinitely (N/A)
+ 31 more ↪

Uptime quorum for height 1993569)

Validators 10:
Public Key	Last Uptime Proof	Expiry Date UTC (Estimated)
0: b98ee2847b18dc4e46be8e384d59157a67a5366ee8b03553c519b520e147ef65	00:11:57	Staking Infinitely (N/A)
1: 30f3281710c23bb2c9b11a8bc0a3f63876ad2d974a55f08db00dde2f1fce4f3e	00:28:06	Staking Infinitely (N/A)
2: afb246351ed7e9eadff997ae1ebcfcdd297bfabfc15398a8202ffcf1e3ceeb54	00:42:51	Staking Infinitely (N/A)
3: 53b13c3b12f633765fad6a3af5e9910067af666c8c35940a5d0190ef05e86016	00:51:02	Staking Infinitely (N/A)
4: 0a23d89cbd41b85c5bffec0f53289536393e1a91a6537caf7b2064d97f92f7bb	01:02:06	Staking Infinitely (N/A)
5: 2083e7a16cef72aced08ba92106bf9cff6725bede937ff82c1156fd7fa2f3c7a	00:12:08	Staking Infinitely (N/A)
6: 80a869c7963e4c92ccd1032749e29b33e7e943f4e70cbe8d9a3110115a0a53e3	00:43:11	Staking Infinitely (N/A)
7: 2c9277494767de038291669f392ceb66b3889c23c574ab42db08e0b48ee8a7bf	00:14:38	Staking Infinitely (N/A)
8: a5ae405941249e1cc812bdae01081cdbfe7963f1bc8d299e444effc2b6930195	00:04:21	2026-08-12 00:22:27 (in 13 days)
9: 848ad910440f790d4a687cad83b333f99dec1fb47bae617c7a02db65b2f1c244	00:07:17	Staking Infinitely (N/A)
Nodes to test (41):
0: c99d98eadc123984ca4f9042e6e2e3460e43467a7136f61f7f0960ef92fec01e	00:50:41	Staking Infinitely (N/A)
1: 050e45639e86a90ca465c5194642d9fee300ac170acdbb2c0144fc8ebaaf6b82	00:58:37	Staking Infinitely (N/A)
2: ab1264fe8acaba585069c1fb0afe0804a97bc00ef269c17231b7994024851111	00:33:56	Staking Infinitely (N/A)
3: 76e3e01fe63166ca4e448a2d9353486dbf966804c0eb51437d135fdd93e3eb3f	00:54:28	Staking Infinitely (N/A)
4: 45f9349a3ceee3a75d6142204286d37dacf81c1f9ec01a65e7b716269726635d	00:52:03	Staking Infinitely (N/A)
5: b42fb5a319f9ef592ada30e483b64431d05386ba5692727d0e64a15802be3ef5	00:15:12	Staking Infinitely (N/A)
6: e9ce4cbc023dd13600dd1b84e811838cccc09a169ab6cb51f537481242bddb1a	00:20:28	Staking Infinitely (N/A)
7: f0e1913158cd650f98270490ded011fc138bb0a18bce9dcb796276b58f32340a	00:02:10	Staking Infinitely (N/A)
8: 64704fc7e91c0d73d5a05f608f0899b45e99fa711383057dcc59064a98c257ab	00:13:04	Staking Infinitely (N/A)
9: 781efae048bb90829a0c7ce9f4c9c34e572d236955e91f4b3c86a85effa632d5	00:57:05	Staking Infinitely (N/A)
+ 31 more ↪

Checkpoint quorum for height 1993572 (determined by block 1993561)

Public Key	Last Uptime Proof	Expiry Date UTC (Estimated)
0: 53b13c3b12f633765fad6a3af5e9910067af666c8c35940a5d0190ef05e86016	00:51:02	Staking Infinitely (N/A)
1: 361f463346d3409705042d85617b51e1c61f8821cc3c21f16ce9034d5b761c1f	00:43:15	Staking Infinitely (N/A)
2: f63e2a3a60e5d07f8fe0a32943c3f362d3d441c0ba771a997e9c893f16e4dff2	00:13:26	2026-08-12 00:24:27 (in 13 days)
3: aa78babccc4e6e29d3becac648489e6da5c375ae22566dd9cc65880210d81539	00:45:34	Staking Infinitely (N/A)
4: 5a67c6e399571ec4665cc61cc19a5e84eeab60cf51c4f75fac5eea24a33d87e0	00:58:06	Staking Infinitely (N/A)
5: 28f7c771d9cd63b4c3d5c8261c153f7e05f23f67a562dc5c39635445e1d1d268	00:55:08	Staking Infinitely (N/A)
6: 4a407bb5161d9ad488e4feb1ce4870d5076d223d24160476275f2e292c290d21	00:00:34	Staking Infinitely (N/A)
7: 139595b1c4670eb35a9cc6d32b6c351c53422d6ebf9405d0e2de6edb09afa5f2	00:58:31	Staking Infinitely (N/A)
8: c9839bdce086483c6fae8ede8600e4410c5dcd2a431148689480ddfd4c6c9363	00:33:56	Staking Infinitely (N/A)
9: d3e9da49cf45266c3a0270253b0e2921dcbf939cfa52e5de31130d9ef5fb921d	00:45:41	Staking Infinitely (N/A)
10: 81ea05da87ecfe7d707a13ded483e5a0ee257c3ff802cd01742185bc87d803d9	00:22:46	Staking Infinitely (N/A)
11: 3a695a55e9442573865950ec85b393e7ade3a76690b62d0e992f32f246943bd1	00:40:38	Staking Infinitely (N/A)
12: cf8f65a97c31057a45dec63b065e23d0763c1ea88c7282fafd738e3e090ef01b	00:58:16	Staking Infinitely (N/A)
13: bf84fec11377bd3f6a46c27484a8f46050274067047fefe4b15cfd566d68a671	00:15:23	Staking Infinitely (N/A)
14: f0e1913158cd650f98270490ded011fc138bb0a18bce9dcb796276b58f32340a	00:02:10	Staking Infinitely (N/A)
15: af591de4390b7c96bab0312158a390b186bf4064e306538b51b5621bbc314185	00:01:51	Staking Infinitely (N/A)
16: c98ab9fca45aec5e9c8ea6f7dd0660b3567e3691d3cfbc4e4b035e737706160b	00:28:59	Staking Infinitely (N/A)
17: 30f9c742e16707fb9b0c9c2078ed750595e297e4a0f75b972794766e25447cfc	00:53:12	Staking Infinitely (N/A)
18: f9e9aa7608c8c134ff9c14ef92488c122b947fd27d8cfe31d6745546c462665b	00:04:23	Staking Infinitely (N/A)
19: ca0113d6999df9187b7959b602c7557cf9658a274fd89948c5aead79eb95a510	00:54:02	Staking Infinitely (N/A)

Note: The quorum shown here is the currently active voting height which is not necessarily the latest quorum. Quorums can only be voted on after a number of blocks have transpired.

Click here to see the last 1hrs worth of the stored quorum states

Last 5 checkpoints

Height	Block hash	Checkpoint Quorum
1993572	61e732ded07a25e8389ed6d5715850a39543adc05500c9be08d32f640388d1e0	1993572; 20/20 signatures: ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
1993568	d514658406d2f6dc7b0e4e16cb4b083257efbdec33135f39bbe12209a5499e5f	1993568; 20/20 signatures: ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
1993560	d68c3c0c60b8994808859af11dc28630fbb6b14307fc11a1b57f3072337700da	1993560; 20/20 signatures: ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
1993500	3b1e0c77377dee78132e3dd79a6b807c6aece147d780a4b028f18a48f9951c7a	1993500; 20/20 signatures: ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
1993440	44e63d84a067e20f21f6d84bd0a68d4cae25d205f3ac3cbc1f48ecf4e2c4de00	1993440; 20/20 signatures: ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

Check here to see the last 50 checkpoints

No javascript / No web analytics trackers / No cookies / No external resources / Open Sourced
Explorer Version (api): patches-2025-08-25-05fdb31 (8.0) Arqma Version: 10.0.0-4b067e8c_Release
Latest source code
Forked from: onion-monero-blockchain-explorer
Copyright (C), 2019-2025 arqma.com