Arqma Blockchain Explorer

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

Server Time: 2026-09-08 11:45:58 | Transaction Pool | Autorefresh is OFF | Go to stagenet explorer | Go to mainnet explorer

Network difficulty: 200000107 | Hard fork: v19 | Hash rate: 1.667 MH/s | Staking Requirement: 100000.000000000 ARQ | Fee: 0.000000050/byte + 0.000090000/output | Median block size limit: 1024.00 kB | Data From 00:00:33 [h:m:s] ago

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

Arqma emission (fees) is 40261656.239012659 (1054.427427909) as of 2020758 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]
1576278 01:318:08:42:23 0.0996 3988575362c6d7259242679b2ceab23f723ca9a2ea1529cc724c8406d236db2f N/A 10.848190436 0/1 0.0996
1576277 01:318:08:43:56 0.0996 a3d6e5aabbf41f1c8cc2fb44b5c99e3f0e0244e1a14b04a4ce667904cfdfa220 N/A 10.848195609 0/1 0.0996
1576276 01:318:08:45:03 10.8701 8c45ffb12e8810883751b84e55ca9a7e078f00a635a43bd5599fc16219de80dc N/A 10.848233572 0/1 0.0996
cdaf4e1b011a92e088a14639f107f17d56131f22f887078329db82fd98e23e82 0.000008040 ? 2/2 2.6318
051801fd4b3bb8b734e461b4f256b47aa62758a661e0f5ed3009b660015a2fd7 0.000008040 ? 2/2 2.6377
79bb09f392046db1865c08d9379ffeb948f08b1de89e188c318004feb4d5a669 0.000005580 ? 1/2 1.8350
c5e3aee00d95903759432ce071dbd0e9fb8f91cd0401379bd31fc6e76176a40e 0.000005550 ? 1/2 1.8262
b232522ad69c58efdbca44eef8b80556c329c997ccbb023e7e4c2adab5d198a2 0.000005580 ? 1/2 1.8398
1576275 01:318:08:47:21 0.0996 7075896bcbfc85c8f3ae8c247ba44f2ade4d24dc9d722feb0a31be87cc8123db N/A 10.848205954 0/1 0.0996
1576274 01:318:08:51:16 0.0996 36697c8b171095d17a88bbfc6e869f3f17a9317d9eb67e01d7bdc09787d6a722 N/A 10.848211127 0/1 0.0996
1576273 01:318:08:51:40 0.0996 2af392d5a3a335563794a28b1fb8cb2087df2512b1a345476f27c78cdd8b7945 N/A 10.848216300 0/1 0.0996
1576272 01:318:08:56:32 7.5859 265f4720cca57b48a5def62d449673826a793aae5d50fb301984a5510d0e01fd N/A 10.848229143 0/1 0.0996
c1853fb463798a41397ae3a9aa1e1d2647578c7930ec0166d05ac0eb09887ea6 0.000007670 ? 8/2 7.4863
1576271 01:318:08:57:35 0.0996 117a8a1f3239fe19b732ef55b8bfbbda1dd6ddbb64d0ef890f019e88e6e47908 N/A 10.848226646 0/1 0.0996
1576270 01:318:08:58:36 0.0996 188fb520c66d36b5752c047b638333b9ebc844cba4f35ebef724e52530b9c7f4 N/A 10.848231819 0/1 0.0996
1576269 01:318:09:00:50 0.0996 b9d111a12f9b8f42adee76300ce1810415ddb72b1db83a18e2c08284c1fe0404 N/A 10.848236992 0/1 0.0996
1576268 01:318:09:02:29 0.0996 aa6c4a1936209c7317ce077879f9c60f85710944a3e11297142585e57f62849d N/A 10.848242164 0/1 0.0996
1576267 01:318:09:03:43 0.0996 16a870db79013ac719d633a7e4c29e5a69c6508ccb43cc9aaedd92d57957b7d8 N/A 10.848247337 0/1 0.0996
1576266 01:318:09:05:10 0.0996 8b9581a8b7e53a0f022ecde0399a9d72b6c743cfc2057a2b584776f8c145f3d7 N/A 10.848252510 0/1 0.0996
1576265 01:318:09:05:16 7.4150 3d8f7002a2c6a3cf0fd94d811af6144bb341ef29c2288cf41c4e94df8fe42cba N/A 10.848279913 0/1 0.0996
5d76f12907c77dd39c1e84e24a4961875f4ecbc775d8a3216dae8c57d804b945 0.000005550 ? 1/2 1.8232
f301c8fc99880fd63f0032163477a7c89342f854df83d8fd91c44c219599c5b0 0.000005550 ? 1/2 1.8252
a7c2c7c4f33d3706eaa67036ef9d831186688ce9699c891e93f6f37f8fc8fc77 0.000005550 ? 1/2 1.8271
64f09d3da0860a04aee8d68bf4230085b8f6925c49353f661168dae0012d46f4 0.000005580 ? 1/2 1.8398
1576264 01:318:09:06:30 3.5576 ba3654ce477c9a3c0e796d6ddbd1612208d35db4541c00fcb8b5a1fc0d69adb9 N/A 10.848266376 0/1 0.0996
3e0463ec1f40ec3fae62aa4e5859948163aec9471142f31937fb5e8f61c86e4d 0.000003520 ? 3/2 3.4580
1576263 01:318:09:08:44 0.0996 7424b247bb609aedf61bf7973723a61f371b23b622027d6b73792d6e0e7d62f5 N/A 10.848268029 0/1 0.0996
1576262 01:318:09:09:57 0.0996 0eab69c4275f2943cdb62cef0953fa1ad6dcbcc4eb6f9e293b3279c7bee39c7b N/A 10.848273201 0/1 0.0996
1576261 01:318:09:15:28 0.0996 6d081e61f35ed8efe3d1c22ebe7cd1881f94afb8243def977769a5134991d006 N/A 10.848278374 0/1 0.0996
1576260 01:318:09:15:54 0.0996 82649b58291fab1e97f17477862401a5d37091e25b626fd646a0f51df1dcf2b0 N/A 10.848283547 0/1 0.0996
1576259 01:318:09:16:18 0.0996 e39e91021ed5dced959aa5ca0b434171f88199b25b16b6933a939d0e013bc73c N/A 10.848288720 0/1 0.0996
Prev
Current Page: 22224/101037
Next

Service Nodes

0 service nodes awaiting contributions, 2 decommissioned service nodes, and 47 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 (2)

(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.
5a67c6e399571ec4665cc61cc19a5e84eeab60cf51c4f75fac5eea24a33d87e0 2/12 60 2001666 10:13:07:51 None (deregistration imminent!)
cf8f65a97c31057a45dec63b065e23d0763c1ea88c7282fafd738e3e090ef01b 2/12 70 2001666 09:13:20:30 None (deregistration imminent!)

Active Service Nodes (47)

Public Key Contributors Operator Fee (%) Staking Requirement Last Reward Height Last Uptimr Proof Expiry Date UTC (Estimated)
050e45639e86a90ca465c5194642d9fee300ac170acdbb2c0144fc8ebaaf6b82 2/12 50 100000.000000000 2020712 08:00:18 Staking Infinitely
3a695a55e9442573865950ec85b393e7ade3a76690b62d0e992f32f246943bd1 1/12 100000.000000000 2020713 03:46:43 Staking Infinitely
848ad910440f790d4a687cad83b333f99dec1fb47bae617c7a02db65b2f1c244 2/12 30 100000.000000000 2020714 02:34:53 Staking Infinitely
c99d98eadc123984ca4f9042e6e2e3460e43467a7136f61f7f0960ef92fec01e 1/12 100000.000000000 2020715 00:11:15 Staking Infinitely
28f7c771d9cd63b4c3d5c8261c153f7e05f23f67a562dc5c39635445e1d1d268 1/12 100000.000000000 2020716 00:16:12 Staking Infinitely
c442b8c2be6b9175211390d4dbf3d3c6b9c8132517335eabbffce8b68da71b36 1/12 100000.000000000 2020717 01:03:29 Staking Infinitely
76e3e01fe63166ca4e448a2d9353486dbf966804c0eb51437d135fdd93e3eb3f 1/12 100000.000000000 2020718 00:14:11 Staking Infinitely
af591de4390b7c96bab0312158a390b186bf4064e306538b51b5621bbc314185 2/12 60 100000.000000000 2020719 00:23:11 Staking Infinitely
aa78babccc4e6e29d3becac648489e6da5c375ae22566dd9cc65880210d81539 1/12 100000.000000000 2020720 00:04:04 Staking Infinitely
75ed97a747c6b790917a62befd733ec67df8a7b5a9861baa432521eaa788d2e2 3/12 50 100000.000000000 2020721 15:23:58 Staking Infinitely
+ 37 more ↪

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

Uptime quorum for height 2020756)

Public Key Last Uptime Proof Expiry Date UTC (Estimated)
Validators 10:
0: 4a407bb5161d9ad488e4feb1ce4870d5076d223d24160476275f2e292c290d21 01:09:28:40 Staking Infinitely (N/A)
1: 4a9a479460d135c51723254462919ff51e4b692f2bc4aedafb26316494f45a64 00:23:11 Staking Infinitely (N/A)
2: c9839bdce086483c6fae8ede8600e4410c5dcd2a431148689480ddfd4c6c9363 00:11:29 Staking Infinitely (N/A)
3: aa78babccc4e6e29d3becac648489e6da5c375ae22566dd9cc65880210d81539 00:04:04 Staking Infinitely (N/A)
4: 050e45639e86a90ca465c5194642d9fee300ac170acdbb2c0144fc8ebaaf6b82 08:00:18 Staking Infinitely (N/A)
5: 781efae048bb90829a0c7ce9f4c9c34e572d236955e91f4b3c86a85effa632d5 15:46:49 Staking Infinitely (N/A)
6: afb246351ed7e9eadff997ae1ebcfcdd297bfabfc15398a8202ffcf1e3ceeb54 00:11:39 Staking Infinitely (N/A)
7: f9e9aa7608c8c134ff9c14ef92488c122b947fd27d8cfe31d6745546c462665b 00:26:56 Staking Infinitely (N/A)
8: ca0113d6999df9187b7959b602c7557cf9658a274fd89948c5aead79eb95a510 00:15:05 Staking Infinitely (N/A)
9: c6c5fce08eef76dca701248665f0586f83da2243ba13781899abc525b3572063 00:12:05 Staking Infinitely (N/A)
Nodes to test (39):
0: 139595b1c4670eb35a9cc6d32b6c351c53422d6ebf9405d0e2de6edb09afa5f2 09:22:14 Staking Infinitely (N/A)
1: 5d21979e8b9332bfc583b3855b5e1b047080dce4609a21454595892ca797f514 00:00:54 Staking Infinitely (N/A)
2: f0e1913158cd650f98270490ded011fc138bb0a18bce9dcb796276b58f32340a 00:14:53 Staking Infinitely (N/A)
3: 2f235e88eada0dcabd49b9f2ee0fcd1002dbfabfe7dc273dc445e1e8abc220c0 00:37:35 Staking Infinitely (N/A)
4: 361f463346d3409705042d85617b51e1c61f8821cc3c21f16ce9034d5b761c1f 03:27:22 Staking Infinitely (N/A)
5: 2c9277494767de038291669f392ceb66b3889c23c574ab42db08e0b48ee8a7bf 06:49:18 Staking Infinitely (N/A)
6: c442b8c2be6b9175211390d4dbf3d3c6b9c8132517335eabbffce8b68da71b36 01:03:29 Staking Infinitely (N/A)
7: 80a869c7963e4c92ccd1032749e29b33e7e943f4e70cbe8d9a3110115a0a53e3 00:52:51 Staking Infinitely (N/A)
8: 28f7c771d9cd63b4c3d5c8261c153f7e05f23f67a562dc5c39635445e1d1d268 00:16:12 Staking Infinitely (N/A)
9: 5a67c6e399571ec4665cc61cc19a5e84eeab60cf51c4f75fac5eea24a33d87e0 10:13:07:51 Staking Infinitely (N/A)
+ 29 more ↪

Uptime quorum for height 2020755)

Public Key Last Uptime Proof Expiry Date UTC (Estimated)
Validators 10:
0: 83b11eca71c4a2d77d256304fd422493ed4d290e3cb084bf76758d239fe9a0b4 00:38:10 Staking Infinitely (N/A)
1: c98ab9fca45aec5e9c8ea6f7dd0660b3567e3691d3cfbc4e4b035e737706160b 00:55:06 Staking Infinitely (N/A)
2: c9839bdce086483c6fae8ede8600e4410c5dcd2a431148689480ddfd4c6c9363 00:11:29 Staking Infinitely (N/A)
3: c338966f59c208f065e570e4631dced159118467b174e2cadc0bd59ff4768987 01:01:11:03 Staking Infinitely (N/A)
4: 0a23d89cbd41b85c5bffec0f53289536393e1a91a6537caf7b2064d97f92f7bb 23:43:40 Staking Infinitely (N/A)
5: bf84fec11377bd3f6a46c27484a8f46050274067047fefe4b15cfd566d68a671 00:32:58 Staking Infinitely (N/A)
6: 94b370885630009cbe68165b641e51343bcb90aba151434230424f6e3ec4a6d2 01:15:17:36 Staking Infinitely (N/A)
7: 75ed97a747c6b790917a62befd733ec67df8a7b5a9861baa432521eaa788d2e2 15:23:58 Staking Infinitely (N/A)
8: f9e9aa7608c8c134ff9c14ef92488c122b947fd27d8cfe31d6745546c462665b 00:26:56 Staking Infinitely (N/A)
9: c442b8c2be6b9175211390d4dbf3d3c6b9c8132517335eabbffce8b68da71b36 01:03:29 Staking Infinitely (N/A)
Nodes to test (39):
0: 3cb0bba8f15c0902db46604f9fb6badeb0f611a645e4b29fb899342107c1f8c7 00:23:35 Staking Infinitely (N/A)
1: 3a695a55e9442573865950ec85b393e7ade3a76690b62d0e992f32f246943bd1 03:46:43 Staking Infinitely (N/A)
2: 139595b1c4670eb35a9cc6d32b6c351c53422d6ebf9405d0e2de6edb09afa5f2 09:22:14 Staking Infinitely (N/A)
3: 848ad910440f790d4a687cad83b333f99dec1fb47bae617c7a02db65b2f1c244 02:34:53 Staking Infinitely (N/A)
4: ca0113d6999df9187b7959b602c7557cf9658a274fd89948c5aead79eb95a510 00:15:05 Staking Infinitely (N/A)
5: 5d21979e8b9332bfc583b3855b5e1b047080dce4609a21454595892ca797f514 00:00:54 Staking Infinitely (N/A)
6: 76e3e01fe63166ca4e448a2d9353486dbf966804c0eb51437d135fdd93e3eb3f 00:14:11 Staking Infinitely (N/A)
7: 050e45639e86a90ca465c5194642d9fee300ac170acdbb2c0144fc8ebaaf6b82 08:00:18 Staking Infinitely (N/A)
8: 64704fc7e91c0d73d5a05f608f0899b45e99fa711383057dcc59064a98c257ab 02:43:19 Staking Infinitely (N/A)
9: 53b13c3b12f633765fad6a3af5e9910067af666c8c35940a5d0190ef05e86016 00:10:22 Staking Infinitely (N/A)
+ 29 more ↪

Uptime quorum for height 2020754)

Public Key Last Uptime Proof Expiry Date UTC (Estimated)
Validators 10:
0: c338966f59c208f065e570e4631dced159118467b174e2cadc0bd59ff4768987 01:01:11:03 Staking Infinitely (N/A)
1: aa78babccc4e6e29d3becac648489e6da5c375ae22566dd9cc65880210d81539 00:04:04 Staking Infinitely (N/A)
2: c99d98eadc123984ca4f9042e6e2e3460e43467a7136f61f7f0960ef92fec01e 00:11:15 Staking Infinitely (N/A)
3: 2083e7a16cef72aced08ba92106bf9cff6725bede937ff82c1156fd7fa2f3c7a 02:34:42 Staking Infinitely (N/A)
4: 64704fc7e91c0d73d5a05f608f0899b45e99fa711383057dcc59064a98c257ab 02:43:19 Staking Infinitely (N/A)
5: b98ee2847b18dc4e46be8e384d59157a67a5366ee8b03553c519b520e147ef65 00:16:03 Staking Infinitely (N/A)
6: 75ed97a747c6b790917a62befd733ec67df8a7b5a9861baa432521eaa788d2e2 15:23:58 Staking Infinitely (N/A)
7: 3a695a55e9442573865950ec85b393e7ade3a76690b62d0e992f32f246943bd1 03:46:43 Staking Infinitely (N/A)
8: 83b11eca71c4a2d77d256304fd422493ed4d290e3cb084bf76758d239fe9a0b4 00:38:10 Staking Infinitely (N/A)
9: 0a23d89cbd41b85c5bffec0f53289536393e1a91a6537caf7b2064d97f92f7bb 23:43:40 Staking Infinitely (N/A)
Nodes to test (39):
0: f9e9aa7608c8c134ff9c14ef92488c122b947fd27d8cfe31d6745546c462665b 00:26:56 Staking Infinitely (N/A)
1: af591de4390b7c96bab0312158a390b186bf4064e306538b51b5621bbc314185 00:23:11 Staking Infinitely (N/A)
2: 5a67c6e399571ec4665cc61cc19a5e84eeab60cf51c4f75fac5eea24a33d87e0 10:13:07:51 Staking Infinitely (N/A)
3: 4a9a479460d135c51723254462919ff51e4b692f2bc4aedafb26316494f45a64 00:23:11 Staking Infinitely (N/A)
4: f0e1913158cd650f98270490ded011fc138bb0a18bce9dcb796276b58f32340a 00:14:53 Staking Infinitely (N/A)
5: c93716c955d7ced8be22fb112a0344fabde019949f2b26fedff327172ba6a973 05:26:57 Staking Infinitely (N/A)
6: 050e45639e86a90ca465c5194642d9fee300ac170acdbb2c0144fc8ebaaf6b82 08:00:18 Staking Infinitely (N/A)
7: c98ab9fca45aec5e9c8ea6f7dd0660b3567e3691d3cfbc4e4b035e737706160b 00:55:06 Staking Infinitely (N/A)
8: 81ea05da87ecfe7d707a13ded483e5a0ee257c3ff802cd01742185bc87d803d9 00:37:50 Staking Infinitely (N/A)
9: 3cb0bba8f15c0902db46604f9fb6badeb0f611a645e4b29fb899342107c1f8c7 00:23:35 Staking Infinitely (N/A)
+ 29 more ↪

Checkpoint quorum for height 2020756 (determined by block 2020745)

Public Key Last Uptime Proof Expiry Date UTC (Estimated)
0: c93716c955d7ced8be22fb112a0344fabde019949f2b26fedff327172ba6a973 05:26:57 Staking Infinitely (N/A)
1: b42fb5a319f9ef592ada30e483b64431d05386ba5692727d0e64a15802be3ef5 00:16:24 Staking Infinitely (N/A)
2: 83b11eca71c4a2d77d256304fd422493ed4d290e3cb084bf76758d239fe9a0b4 00:38:10 Staking Infinitely (N/A)
3: c9839bdce086483c6fae8ede8600e4410c5dcd2a431148689480ddfd4c6c9363 00:11:29 Staking Infinitely (N/A)
4: 64704fc7e91c0d73d5a05f608f0899b45e99fa711383057dcc59064a98c257ab 02:43:19 Staking Infinitely (N/A)
5: f9e9aa7608c8c134ff9c14ef92488c122b947fd27d8cfe31d6745546c462665b 00:26:56 Staking Infinitely (N/A)
6: 30f9c742e16707fb9b0c9c2078ed750595e297e4a0f75b972794766e25447cfc 00:13:16 Staking Infinitely (N/A)
7: 30f3281710c23bb2c9b11a8bc0a3f63876ad2d974a55f08db00dde2f1fce4f3e 00:38:02 Staking Infinitely (N/A)
8: a382ea37422bc7715fb954fd567ae77c7b8db3bf92a2d4ac48025e0122832641 16:22:13 Staking Infinitely (N/A)
9: 139595b1c4670eb35a9cc6d32b6c351c53422d6ebf9405d0e2de6edb09afa5f2 09:22:14 Staking Infinitely (N/A)
10: 33ef2ff577821dfc3e8ba0b6a7b62759f092c53d798cc1a9c5ba85f59f549efc 00:13:56 Staking Infinitely (N/A)
11: 94b370885630009cbe68165b641e51343bcb90aba151434230424f6e3ec4a6d2 01:15:17:36 Staking Infinitely (N/A)
12: bf84fec11377bd3f6a46c27484a8f46050274067047fefe4b15cfd566d68a671 00:32:58 Staking Infinitely (N/A)
13: 0a23d89cbd41b85c5bffec0f53289536393e1a91a6537caf7b2064d97f92f7bb 23:43:40 Staking Infinitely (N/A)
14: 3cb0bba8f15c0902db46604f9fb6badeb0f611a645e4b29fb899342107c1f8c7 00:23:35 Staking Infinitely (N/A)
15: afb246351ed7e9eadff997ae1ebcfcdd297bfabfc15398a8202ffcf1e3ceeb54 00:11:39 Staking Infinitely (N/A)
16: e9ce4cbc023dd13600dd1b84e811838cccc09a169ab6cb51f537481242bddb1a 00:05:44 Staking Infinitely (N/A)
17: 781efae048bb90829a0c7ce9f4c9c34e572d236955e91f4b3c86a85effa632d5 15:46:49 Staking Infinitely (N/A)
18: 050e45639e86a90ca465c5194642d9fee300ac170acdbb2c0144fc8ebaaf6b82 08:00:18 Staking Infinitely (N/A)
19: 53b13c3b12f633765fad6a3af5e9910067af666c8c35940a5d0190ef05e86016 00:10:22 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
2020756 a4ca62286f32390f5fd537d5bf108023b097d9da41b3697b73da9a10f10635dc 2020756; 9/20 signatures: x ✓ ✓ x x ✓ ✓ ✓ x x ✓ x ✓ x x x ✓ x x ✓
2020752 540c31c1ca987b52f551859f76f95f6dec1ed22d4f5746053fda147a0f5c905e 2020752; 10/20 signatures: x ✓ x ✓ x ✓ ✓ x ✓ ✓ x x ✓ x x x ✓ ✓ ✓ x
2020740 45020d66b1d6c99eb360248a1e5b846a2046d1466c40eaae1f540a0e17449446 2020740; 9/20 signatures: ✓ x x x x x ✓ x x x ✓ ✓ ✓ ✓ x ✓ ✓ ✓ x x
2020680 9953a8d2dda96cc5084b566541ea007225c9ef6cd608bdaffc09ea457eb9f901 2020680; 9/20 signatures: x ✓ x ✓ ✓ ✓ ✓ x x x ✓ x ✓ x x x ✓ ✓ x x
2020620 593399eecd3471edac80c838dc8e55ebbe7662888e45e299149085bbbafc4cfe 2020620; 11/20 signatures: ✓ ✓ ✓ x ✓ x x ✓ ✓ ✓ x x ✓ x x ✓ x x ✓ ✓

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