Arqma Blockchain Explorer

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

Server Time: 2026-09-05 12:23:51 | Transaction Pool | Autorefresh is OFF | Go to stagenet explorer | Go to mainnet explorer

Network difficulty: 132000084 | Hard fork: v19 | Hash rate: 1.100 MH/s | Staking Requirement: 100000.000000000 ARQ | Fee: 0.000000050/byte + 0.000090000/output | Median block size limit: 1024.00 kB | Data From 00:00:27 [h:m:s] ago

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

Arqma emission (fees) is 40203627.239012659 (1053.883258709) as of 2018757 block

Transaction Pool

(No Of TXs: 3, Size: 4.2520 kB, Updated every 5 seconds)

Age [HH:MM:SS] Type Transaction Hash Fee/Per kB In/Out TX Size [kB]
00:06:58 a74cfcca25ee9167831ef55d4fff80ce717a4a713c9e00b002d0369ff2c062ef 0.0003/0.0002 1/2 1.42
00:06:59 693a111e742ac097e8b33a40e42c73072356ed6d803610bb20c3fc0d68f84821 0.0003/0.0002 1/2 1.42
00:07:00 7f87eedfe022440d09ad637f99c445b377dda85a7dca036afa023565fbb619bb 0.0003/0.0002 1/2 1.42

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]
1339217 02:285:12:54:18 9.0527 bebd0f4f1b68965493555965c795b608a96cb96ac0387344ee797a7bd1accad4 N/A 12.146469542 0/1 0.0996
244eea9e2ae8f8eb994922260c4bb2a769619fab88ae21495d57cd7cb08a9625 0.000002690 ? 2/2 2.6455
0f6954aefa37e2fabf7cfcb64db8fc85362032a8038af75e085aa66a03cd8e4c 0.000002690 ? 2/2 2.6494
1769b7911691afaed318dce108f9258dbc0971104fa0508a6d7dba504604f5c8 0.000001850 ? 1/2 1.8232
bd9b1788a89003909485c246db653bcfbad5d5555b54a96fc2fe1197b6ff8854 0.000001860 ? 1/2 1.8350
1339216 02:285:12:57:46 0.0996 f0424ac36134fc9d25ecbb9f58c21778fa500eae2e8e1e0c356c3c32c48556a7 N/A 12.146466244 0/1 0.0996
1339215 02:285:13:00:14 0.0996 6e05905cebb3ad1c46d8971c14f1ab88a05a226a4dcfc642036b5ee1773d494b N/A 12.146472035 0/1 0.0996
1339214 02:285:13:01:53 0.0996 99225cc8e5445839a9afe121eed9568f47691c46693e64f1f73d8ec83a83eeaf N/A 12.146477827 0/1 0.0996
1339213 02:285:13:02:10 0.0996 faeae50a76b38858ca6a7ff8a5e7c79b40bfb5b86546b478b6a3aa98a431d216 N/A 12.146483619 0/1 0.0996
1339212 02:285:13:04:27 10.6436 e4cf948e3e15349d0478b640edf9f57f34136ac29d5c0f7700f086947fe6f591 N/A 12.146500151 0/1 0.0996
d0aace4f220fb15b5b09619a39d89df8eb123982244cdc95636154a2f132172d 0.000002680 ? 2/2 2.6289
f82993601a12f8c9b33aeece8aa66a033398c28d6efc6650ed7357893d3af6a7 0.000002690 ? 2/2 2.6396
38c42cef0fbd01a1cb318460a01ba4d305b4e62e7fb998240d99900b4d5e7b07 0.000002680 ? 2/2 2.6318
1721d19cf199ea303718f02c397c148fe3b571bb941733f3d6d25a40146ed9aa 0.000002690 ? 2/2 2.6436
1339211 02:285:13:05:26 0.0996 1233f4790332ae8b3346316b506e10c849c848c5936085f0309fcff891cc74db N/A 12.146495203 0/1 0.0996
1339210 02:285:13:06:12 0.0996 eb442f61d1b8d19a9efaf24fb41440fa7167ba06879c0f38e6b3c3acdd487fed N/A 12.146500995 0/1 0.0996
1339209 02:285:13:06:25 0.0996 64384e78430e8cbbfdc09c2b37940e015c2f13ecd836142936a58479539c638d N/A 12.146506787 0/1 0.0996
1339208 02:285:13:06:45 0.0996 fc1a8e7b6d9aed7796821d896bffc89b128e3f1ff834de537ff770e0a2600966 N/A 12.146512579 0/1 0.0996
1339207 02:285:13:07:16 0.0996 1d05b1b080bd7e54f4041771ef6e84920c07608451bf90c31dd4e3c875ba8418 N/A 12.146518371 0/1 0.0996
1339206 02:285:13:08:24 0.0996 13910b17f7f9d0739ba4fa1a9de1f836c8271566a983ace2245fd78500540756 N/A 12.146524163 0/1 0.0996
1339205 02:285:13:09:03 9.9980 01865683697e086391cf602cc898870c1b78997678ef16ddc13e51535a259ad0 N/A 12.146540105 0/1 0.0996
e91aadbc7ac59d3db44aa3f8c1a413115cb46c1acc2383da335e1c2f3c21c216 0.000010150 ? 11/2 9.8984
1339204 02:285:13:13:44 0.0996 dfcde91435facd4e46f9eb97f10cab90bd70922746cd1b25870f576a1a1d570d N/A 12.146535746 0/1 0.0996
1339203 02:285:13:17:31 0.0996 b8ad478e9308e51e899936f673c083c166ebdee0267baae2e6ed52cf79bed91b N/A 12.146541538 0/1 0.0996
1339202 02:285:13:20:43 0.0996 70a8e32f30fca78f636412af098273a3d105e2eea138c1ca8ba05cfdbbef0e27 N/A 12.146547330 0/1 0.0996
1339201 02:285:13:22:11 0.0996 fd741343d41b8a4fb3ac0975e484bda64267707eb79f939df39b7d6fae79cc36 N/A 12.146553122 0/1 0.0996
1339200 02:285:13:22:14 3.5518 b4b378de8ecb7175d9bba6c6b659a278b2b799d38b7a165076cf5b87920f8064 N/A 12.146562434 0/1 0.0996
76530e93ce6385c9c3036a46a4e44ac7d2d70f6a42e18476799fc1a4a37d3f45 0.000003520 ? 3/2 3.4521
1339199 02:285:13:25:51 5.3799 f0abe649867505e70724d3cf2cb244fee001dbc742a827c5b0afdd9ec0dc17af N/A 12.146570086 0/1 0.0996
b833539c49a2172dc9620492b4dbef7345644695103ffcaa3f6feec772245574 0.000002690 ? 2/2 2.6377
b7bc350faaca0e3781f97a873c89b6d15e93d143e87051d2a1b08de22ee0fd3a 0.000002690 ? 2/2 2.6426
1339198 02:285:13:27:52 0.0996 d228a968529d41a96610eaa0d7513756f4324fcdadb233c117b2d0bcad268a42 N/A 12.146570498 0/1 0.0996
Prev
Current Page: 33977/100937
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 07:13:45:44 None (deregistration imminent!)
cf8f65a97c31057a45dec63b065e23d0763c1ea88c7282fafd738e3e090ef01b 2/12 70 2001666 06:13:58:23 None (deregistration imminent!)

Active Service Nodes (47)

Public Key Contributors Operator Fee (%) Staking Requirement Last Reward Height Last Uptimr Proof Expiry Date UTC (Estimated)
361f463346d3409705042d85617b51e1c61f8821cc3c21f16ce9034d5b761c1f 1/12 100000.000000000 2018711 10:13:19 Staking Infinitely
b42fb5a319f9ef592ada30e483b64431d05386ba5692727d0e64a15802be3ef5 1/12 100000.000000000 2018712 00:26:14 Staking Infinitely
b98ee2847b18dc4e46be8e384d59157a67a5366ee8b03553c519b520e147ef65 1/12 100000.000000000 2018713 00:25:50 Staking Infinitely
f0e1913158cd650f98270490ded011fc138bb0a18bce9dcb796276b58f32340a 1/12 100000.000000000 2018714 00:24:45 Staking Infinitely
781efae048bb90829a0c7ce9f4c9c34e572d236955e91f4b3c86a85effa632d5 3/12 50 100000.000000000 2018715 01:51:42 Staking Infinitely
94b370885630009cbe68165b641e51343bcb90aba151434230424f6e3ec4a6d2 2/12 66 100000.000000000 2018716 07:41:47 Staking Infinitely
30f9c742e16707fb9b0c9c2078ed750595e297e4a0f75b972794766e25447cfc 1/12 100000.000000000 2018717 00:21:50 Staking Infinitely
4a9a479460d135c51723254462919ff51e4b692f2bc4aedafb26316494f45a64 2/12 50 100000.000000000 2018718 02:45:38 Staking Infinitely
64704fc7e91c0d73d5a05f608f0899b45e99fa711383057dcc59064a98c257ab 4/12 66 100000.000000000 2018719 00:45:12 Staking Infinitely
c338966f59c208f065e570e4631dced159118467b174e2cadc0bd59ff4768987 4/12 50 100000.000000000 2018720 00:28:08 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 2018755)

Public Key Last Uptime Proof Expiry Date UTC (Estimated)
Validators 10:
0: 28f7c771d9cd63b4c3d5c8261c153f7e05f23f67a562dc5c39635445e1d1d268 00:24:33 Staking Infinitely (N/A)
1: 2f235e88eada0dcabd49b9f2ee0fcd1002dbfabfe7dc273dc445e1e8abc220c0 00:47:29 Staking Infinitely (N/A)
2: c98ab9fca45aec5e9c8ea6f7dd0660b3567e3691d3cfbc4e4b035e737706160b 00:05:21 Staking Infinitely (N/A)
3: ca0113d6999df9187b7959b602c7557cf9658a274fd89948c5aead79eb95a510 00:23:27 Staking Infinitely (N/A)
4: b42fb5a319f9ef592ada30e483b64431d05386ba5692727d0e64a15802be3ef5 00:26:14 Staking Infinitely (N/A)
5: 76e3e01fe63166ca4e448a2d9353486dbf966804c0eb51437d135fdd93e3eb3f 00:22:39 Staking Infinitely (N/A)
6: f0e1913158cd650f98270490ded011fc138bb0a18bce9dcb796276b58f32340a 00:24:45 Staking Infinitely (N/A)
7: c338966f59c208f065e570e4631dced159118467b174e2cadc0bd59ff4768987 00:28:08 Staking Infinitely (N/A)
8: 2c9277494767de038291669f392ceb66b3889c23c574ab42db08e0b48ee8a7bf 00:33:35 Staking Infinitely (N/A)
9: 848ad910440f790d4a687cad83b333f99dec1fb47bae617c7a02db65b2f1c244 10:22:18 Staking Infinitely (N/A)
Nodes to test (39):
0: c93716c955d7ced8be22fb112a0344fabde019949f2b26fedff327172ba6a973 01:18:35 Staking Infinitely (N/A)
1: 139595b1c4670eb35a9cc6d32b6c351c53422d6ebf9405d0e2de6edb09afa5f2 00:18:36 Staking Infinitely (N/A)
2: ab1264fe8acaba585069c1fb0afe0804a97bc00ef269c17231b7994024851111 03:22:47 Staking Infinitely (N/A)
3: bf84fec11377bd3f6a46c27484a8f46050274067047fefe4b15cfd566d68a671 00:42:56 Staking Infinitely (N/A)
4: e9ce4cbc023dd13600dd1b84e811838cccc09a169ab6cb51f537481242bddb1a 00:15:38 Staking Infinitely (N/A)
5: 94b370885630009cbe68165b641e51343bcb90aba151434230424f6e3ec4a6d2 07:41:47 Staking Infinitely (N/A)
6: 3cb0bba8f15c0902db46604f9fb6badeb0f611a645e4b29fb899342107c1f8c7 01:09:09 Staking Infinitely (N/A)
7: 781efae048bb90829a0c7ce9f4c9c34e572d236955e91f4b3c86a85effa632d5 01:51:42 Staking Infinitely (N/A)
8: 45f9349a3ceee3a75d6142204286d37dacf81c1f9ec01a65e7b716269726635d 00:14:10 Staking Infinitely (N/A)
9: f9e9aa7608c8c134ff9c14ef92488c122b947fd27d8cfe31d6745546c462665b 00:35:34 Staking Infinitely (N/A)
+ 29 more ↪

Uptime quorum for height 2018754)

Public Key Last Uptime Proof Expiry Date UTC (Estimated)
Validators 10:
0: 2c9277494767de038291669f392ceb66b3889c23c574ab42db08e0b48ee8a7bf 00:33:35 Staking Infinitely (N/A)
1: 0a23d89cbd41b85c5bffec0f53289536393e1a91a6537caf7b2064d97f92f7bb 01:06:29:05 Staking Infinitely (N/A)
2: b42fb5a319f9ef592ada30e483b64431d05386ba5692727d0e64a15802be3ef5 00:26:14 Staking Infinitely (N/A)
3: 45f9349a3ceee3a75d6142204286d37dacf81c1f9ec01a65e7b716269726635d 00:14:10 Staking Infinitely (N/A)
4: d3e9da49cf45266c3a0270253b0e2921dcbf939cfa52e5de31130d9ef5fb921d 17:28:19 Staking Infinitely (N/A)
5: 4a9a479460d135c51723254462919ff51e4b692f2bc4aedafb26316494f45a64 02:45:38 Staking Infinitely (N/A)
6: c442b8c2be6b9175211390d4dbf3d3c6b9c8132517335eabbffce8b68da71b36 00:06:58 Staking Infinitely (N/A)
7: 28f7c771d9cd63b4c3d5c8261c153f7e05f23f67a562dc5c39635445e1d1d268 00:24:33 Staking Infinitely (N/A)
8: c6c5fce08eef76dca701248665f0586f83da2243ba13781899abc525b3572063 00:26:58 Staking Infinitely (N/A)
9: 94b370885630009cbe68165b641e51343bcb90aba151434230424f6e3ec4a6d2 07:41:47 Staking Infinitely (N/A)
Nodes to test (39):
0: 139595b1c4670eb35a9cc6d32b6c351c53422d6ebf9405d0e2de6edb09afa5f2 00:18:36 Staking Infinitely (N/A)
1: 5d21979e8b9332bfc583b3855b5e1b047080dce4609a21454595892ca797f514 00:10:47 Staking Infinitely (N/A)
2: b98ee2847b18dc4e46be8e384d59157a67a5366ee8b03553c519b520e147ef65 00:25:50 Staking Infinitely (N/A)
3: 781efae048bb90829a0c7ce9f4c9c34e572d236955e91f4b3c86a85effa632d5 01:51:42 Staking Infinitely (N/A)
4: c9839bdce086483c6fae8ede8600e4410c5dcd2a431148689480ddfd4c6c9363 00:40:24 Staking Infinitely (N/A)
5: af591de4390b7c96bab0312158a390b186bf4064e306538b51b5621bbc314185 00:35:37 Staking Infinitely (N/A)
6: 848ad910440f790d4a687cad83b333f99dec1fb47bae617c7a02db65b2f1c244 10:22:18 Staking Infinitely (N/A)
7: 64704fc7e91c0d73d5a05f608f0899b45e99fa711383057dcc59064a98c257ab 00:45:12 Staking Infinitely (N/A)
8: 5a67c6e399571ec4665cc61cc19a5e84eeab60cf51c4f75fac5eea24a33d87e0 07:13:45:44 Staking Infinitely (N/A)
9: c99d98eadc123984ca4f9042e6e2e3460e43467a7136f61f7f0960ef92fec01e 00:19:36 Staking Infinitely (N/A)
+ 29 more ↪

Uptime quorum for height 2018753)

Public Key Last Uptime Proof Expiry Date UTC (Estimated)
Validators 10:
0: c338966f59c208f065e570e4631dced159118467b174e2cadc0bd59ff4768987 00:28:08 Staking Infinitely (N/A)
1: c99d98eadc123984ca4f9042e6e2e3460e43467a7136f61f7f0960ef92fec01e 00:19:36 Staking Infinitely (N/A)
2: 361f463346d3409705042d85617b51e1c61f8821cc3c21f16ce9034d5b761c1f 10:13:19 Staking Infinitely (N/A)
3: c9839bdce086483c6fae8ede8600e4410c5dcd2a431148689480ddfd4c6c9363 00:40:24 Staking Infinitely (N/A)
4: b42fb5a319f9ef592ada30e483b64431d05386ba5692727d0e64a15802be3ef5 00:26:14 Staking Infinitely (N/A)
5: c6c5fce08eef76dca701248665f0586f83da2243ba13781899abc525b3572063 00:26:58 Staking Infinitely (N/A)
6: c98ab9fca45aec5e9c8ea6f7dd0660b3567e3691d3cfbc4e4b035e737706160b 00:05:21 Staking Infinitely (N/A)
7: 3a695a55e9442573865950ec85b393e7ade3a76690b62d0e992f32f246943bd1 07:12:14 Staking Infinitely (N/A)
8: 5d21979e8b9332bfc583b3855b5e1b047080dce4609a21454595892ca797f514 00:10:47 Staking Infinitely (N/A)
9: 139595b1c4670eb35a9cc6d32b6c351c53422d6ebf9405d0e2de6edb09afa5f2 00:18:36 Staking Infinitely (N/A)
Nodes to test (39):
0: 30f3281710c23bb2c9b11a8bc0a3f63876ad2d974a55f08db00dde2f1fce4f3e 00:47:53 Staking Infinitely (N/A)
1: afb246351ed7e9eadff997ae1ebcfcdd297bfabfc15398a8202ffcf1e3ceeb54 00:26:37 Staking Infinitely (N/A)
2: bf84fec11377bd3f6a46c27484a8f46050274067047fefe4b15cfd566d68a671 00:42:56 Staking Infinitely (N/A)
3: aa78babccc4e6e29d3becac648489e6da5c375ae22566dd9cc65880210d81539 00:12:37 Staking Infinitely (N/A)
4: 81ea05da87ecfe7d707a13ded483e5a0ee257c3ff802cd01742185bc87d803d9 00:47:45 Staking Infinitely (N/A)
5: 5a67c6e399571ec4665cc61cc19a5e84eeab60cf51c4f75fac5eea24a33d87e0 07:13:45:44 Staking Infinitely (N/A)
6: 2083e7a16cef72aced08ba92106bf9cff6725bede937ff82c1156fd7fa2f3c7a 06:02:02 Staking Infinitely (N/A)
7: b98ee2847b18dc4e46be8e384d59157a67a5366ee8b03553c519b520e147ef65 00:25:50 Staking Infinitely (N/A)
8: 53b13c3b12f633765fad6a3af5e9910067af666c8c35940a5d0190ef05e86016 00:18:52 Staking Infinitely (N/A)
9: 3cb0bba8f15c0902db46604f9fb6badeb0f611a645e4b29fb899342107c1f8c7 01:09:09 Staking Infinitely (N/A)
+ 29 more ↪

Checkpoint quorum for height 2018756 (determined by block 2018745)

Public Key Last Uptime Proof Expiry Date UTC (Estimated)
0: ca0113d6999df9187b7959b602c7557cf9658a274fd89948c5aead79eb95a510 00:23:27 Staking Infinitely (N/A)
1: c93716c955d7ced8be22fb112a0344fabde019949f2b26fedff327172ba6a973 01:18:35 Staking Infinitely (N/A)
2: f0e1913158cd650f98270490ded011fc138bb0a18bce9dcb796276b58f32340a 00:24:45 Staking Infinitely (N/A)
3: afb246351ed7e9eadff997ae1ebcfcdd297bfabfc15398a8202ffcf1e3ceeb54 00:26:37 Staking Infinitely (N/A)
4: 30f9c742e16707fb9b0c9c2078ed750595e297e4a0f75b972794766e25447cfc 00:21:50 Staking Infinitely (N/A)
5: 4a407bb5161d9ad488e4feb1ce4870d5076d223d24160476275f2e292c290d21 00:37:48 Staking Infinitely (N/A)
6: c98ab9fca45aec5e9c8ea6f7dd0660b3567e3691d3cfbc4e4b035e737706160b 00:05:21 Staking Infinitely (N/A)
7: 64704fc7e91c0d73d5a05f608f0899b45e99fa711383057dcc59064a98c257ab 00:45:12 Staking Infinitely (N/A)
8: 28f7c771d9cd63b4c3d5c8261c153f7e05f23f67a562dc5c39635445e1d1d268 00:24:33 Staking Infinitely (N/A)
9: 0a23d89cbd41b85c5bffec0f53289536393e1a91a6537caf7b2064d97f92f7bb 01:06:29:05 Staking Infinitely (N/A)
10: bf84fec11377bd3f6a46c27484a8f46050274067047fefe4b15cfd566d68a671 00:42:56 Staking Infinitely (N/A)
11: a382ea37422bc7715fb954fd567ae77c7b8db3bf92a2d4ac48025e0122832641 00:32:02 Staking Infinitely (N/A)
12: 2f235e88eada0dcabd49b9f2ee0fcd1002dbfabfe7dc273dc445e1e8abc220c0 00:47:29 Staking Infinitely (N/A)
13: 45f9349a3ceee3a75d6142204286d37dacf81c1f9ec01a65e7b716269726635d 00:14:10 Staking Infinitely (N/A)
14: 5d21979e8b9332bfc583b3855b5e1b047080dce4609a21454595892ca797f514 00:10:47 Staking Infinitely (N/A)
15: b98ee2847b18dc4e46be8e384d59157a67a5366ee8b03553c519b520e147ef65 00:25:50 Staking Infinitely (N/A)
16: 76e3e01fe63166ca4e448a2d9353486dbf966804c0eb51437d135fdd93e3eb3f 00:22:39 Staking Infinitely (N/A)
17: ab1264fe8acaba585069c1fb0afe0804a97bc00ef269c17231b7994024851111 03:22:47 Staking Infinitely (N/A)
18: 3a695a55e9442573865950ec85b393e7ade3a76690b62d0e992f32f246943bd1 07:12:14 Staking Infinitely (N/A)
19: 781efae048bb90829a0c7ce9f4c9c34e572d236955e91f4b3c86a85effa632d5 01:51:42 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
2018756 c475735dd658ee7ff8744f81699165ecfbe319ec7fdc3719a7b04143434403a7 2018756; 11/20 signatures: x x x x x x x x x
2018752 862c3338a73d59a059040b3fd0e534b1614d1070351451d0ab8e01907f045bab 2018752; 9/20 signatures: x x x x x x x x x x x
2018700 ffefdc850ced11378266649925823e12e317cad91a273d6ffb7c6b3ecd2d7720 2018700; 10/20 signatures: x x x x x x x x x x
2018640 3c7ef36d5ec71a8c3e061c080cb92ac095f5b836492f1d526d5a4b5a60a5a4ef 2018640; 8/20 signatures: x x x x x x x x x x x x
2018580 01263cefae88f3fbf564c929db502870789329ba4fc425d93b4028ddb7a2179a 2018580; 9/20 signatures: x x 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