February 2, 2026 at 1:43:17 PM UTC Appchain Transaction Pool Autorefresh is OFF Go to stagenet explorer Go to testnet explorer Go to devnet explorer

2,037,531 427,859,567 v22 in 63 seconds 25,000 SESH 300kB/600kB 19.0GB

85,307,387.61 / 240,000,000 57,870,162.39 SESH

🏁 Node Registration 🚫 Node Deregistration 🔑 Node Exit Request 🔓 Node Exit 🧹 Node Liquidation 🎁 Claim Rewards 📜 Deploy Multicontrib. Contract 📥 Set Multicontrib. Reserved Slots 🧮 Set Multicontrib. Fee 📖 Multicontrib. Open For Contrib. 🪧 Set Multcontrib. Keys 🖋️ Set Multicontrib. Finalize Flag 📨 Multicontrib. Contrib. 🔜 Multicontrib. Finalized 📀 Multicontrib. Filled ♻️ Reset Multicontrib.

Arbitrum Events (Last 20 Events)

31,692

Prev
Current Page: 0/1584
Next
Showing events/page
L2 Height Type Action Transaction Hash Contract
427,859,366
📖 Multicontributor Open For Contribution
Multicontrib contract 0x0BE6.. is open for contribution 0c61869f032b2e927e8bb84d243598ca9c32cf34a6b2d1612584cc192c9ab4bc
427,859,366
📨 Multicontributor Contribution
0x8B59.. contributed 6250 SESH to multicontrib contract 0x0BE6.. 0c61869f032b2e927e8bb84d243598ca9c32cf34a6b2d1612584cc192c9ab4bc
427,857,638
📜 Deploy Multicontributor Contract
New multicontrib contract 0x0BE6.. w/ operator 0x8B59.. and SN key 0xd764.. deployed 4abf487afaaccf16a10314c18de91b09ef6d4f9dd0d2b99e1304ac680a14a8ca Session Multicontributor
427,857,638
📥 Assign Reserved Slots On Multicontributor Node
Remove reserved contributors for multicontrib contract 0x0BE6.. 4abf487afaaccf16a10314c18de91b09ef6d4f9dd0d2b99e1304ac680a14a8ca
427,857,638
♻️ Reset Multicontributor Settings
Reset multicontrib contract 0x0BE6.. 4abf487afaaccf16a10314c18de91b09ef6d4f9dd0d2b99e1304ac680a14a8ca
427,857,638
🪧 Set Multicontributor Keys
Set keys (bls: 1af7.. 22ce.., ed: 0xd764..) for multicontrib contract 0x0BE6.. 4abf487afaaccf16a10314c18de91b09ef6d4f9dd0d2b99e1304ac680a14a8ca
427,857,638
🧮 Set Fee On Multicontributor Node
Updated multicontrib contract 0x0BE6.. fee to 17.25% 4abf487afaaccf16a10314c18de91b09ef6d4f9dd0d2b99e1304ac680a14a8ca
427,857,638
📥 Assign Reserved Slots On Multicontributor Node
Set 1 reserved contributors for multicontrib contract 0x0BE6.. 4abf487afaaccf16a10314c18de91b09ef6d4f9dd0d2b99e1304ac680a14a8ca
427,857,638
🖋️ Set Multicontributor Finalize Flag
Set multicontrib contract 0x0BE6.. manual finalize to false 4abf487afaaccf16a10314c18de91b09ef6d4f9dd0d2b99e1304ac680a14a8ca
427,856,344
📨 Multicontributor Contribution
0x5dbF.. contributed 763.158049439 SESH to multicontrib contract 0x21A0.. 7f54477ef4d910bb0bebdb32cf0e6cbc84adf1463b982baf316b2b649b88727e
427,856,285
🎁 Claim Rewards
0xb92e.. claimed 11.84959764 SESH ca91aac90bd1b8aa2d1f97636fbb7aa2fd2a7091fd9e88148db581958f6436d5 Session Node Rewards
427,856,142
🎁 Claim Rewards
0x5dbF.. claimed 763.158049439 SESH ff44ac3d83fd4b561a7ee9503e045b140b25d35b210544705d77a89f65e11636 Session Node Rewards
427,855,080
📨 Multicontributor Contribution
0x6f35.. contributed 1057.072438418 SESH to multicontrib contract 0x21A0.. 4929485adfb604fede225ce875284e81bf88bb670142e01c05ea54b957f437eb
427,854,431
🎁 Claim Rewards
0x6f35.. claimed 0 SESH a0eea7e1ab080fa7983d8145a14ea04bd1a7e0915fda142508234b157cd6c95d Session Node Rewards
427,854,288
🎁 Claim Rewards
0x6f35.. claimed 3.820714147 SESH 2122c8feea0c160eea5863863804044ace295a4a93a6a7505d8c27277e78deac Session Node Rewards
427,854,178
📖 Multicontributor Open For Contribution
Multicontrib contract 0x6C3c.. is open for contribution 2192274e196e99c65ab70c1eb262976395d82a9a74796ae7ec1a0805e1e8ae2c
427,854,178
📨 Multicontributor Contribution
0xFfa0.. contributed 6250 SESH to multicontrib contract 0x6C3c.. 2192274e196e99c65ab70c1eb262976395d82a9a74796ae7ec1a0805e1e8ae2c
427,854,133
📜 Deploy Multicontributor Contract
New multicontrib contract 0x6C3c.. w/ operator 0xFfa0.. and SN key 0xcc03.. deployed 8050c959e4ad13ba2b0b7dc40521dfb2bd711272b960f89b3de85b3d10a82bad Session Multicontributor
427,854,133
📥 Assign Reserved Slots On Multicontributor Node
Remove reserved contributors for multicontrib contract 0x6C3c.. 8050c959e4ad13ba2b0b7dc40521dfb2bd711272b960f89b3de85b3d10a82bad
427,854,133
♻️ Reset Multicontributor Settings
Reset multicontrib contract 0x6C3c.. 8050c959e4ad13ba2b0b7dc40521dfb2bd711272b960f89b3de85b3d10a82bad
Prev
Current Page: 0/1584
Next
Showing events/page

🏁 Node Registration 👍 Recommission 👎 Decommission 🚫 Deregistration 🔨 Purge 🔓 Stake unlock 🎁 Block Reward 📋 IP Change Penalty 🎫 Name Service Purchase 💾 Name Service Update

Appchain Transaction Pool

0 transactions, 0B

Age [h:m:s] Type Transaction Hash Fee/Per kB In/Out TX Size

Appchain Transactions in Blocks 5637–5646 🔗Permanent link to this block range

(Min. / Median / Average / Max. weights of these blocks: 172B / 217kB / 187kB / 315kB)

Prev
Current Page: 203188/203753
Next
Showing blocks/page
Height Age [h:m:s] Size Type Transaction Hash Fee In/Out TX Size
5,646 2825d 4:20:08 388 81b4276ca7d471e584fd142c8c0e041be82ca8b6d462a3c8a95ef82cb654f6ef 0/2 172
5,645 2825d 4:20:24 311k 99e096453ebdc113ce1e0ef8d2404d7beb056634753e3a999f66d1776f5923a9 0/2 163
1141a0131e37d2a2602005d6e51f414a9708b837f8887b7c24e06bafdd0bb533 0.2735 2/2 14.2k
8aaa326a2373b7b3f39c41be4327532d31641531f193b09885c386c343de6a5c 0.0684 1/2 13.4k
c58c6688fff7ddd46267fd665d9702e03987cde6e878aaeb2b1bd9c7b78b18be 0.0684 1/2 13.4k
24e5d42080a6a0c0901e7bb718364ecda0837a9c17eb348b57fecba9d1c4a545 0.0684 1/2 13.4k
c46838c2b4a5175ae6c65398774fe04134bd2ca5add66c854c1f448e4fa01940 0.0684 1/2 13.4k
b118370c19c89ff38e7b1e42ed0ccca5f318981d712f232d7bcae6e0aa474327 0.0684 1/2 13.4k
8faeda34c66bf5898574ea466f9dc856612d265e41e03c7e35a5e1b0bae118c2 0.0684 1/2 13.4k
9f6585ddae86c6ef02d415a4077013bbe236282bde6cb58b28311c13a12fe952 0.0684 1/2 13.4k
5a0ce4b3c0a593331a16d0cc324c330acec1adee177b16a1c440f366ede2a8f9 0.0684 1/2 13.4k
3ec6ea90db56f5e989966ac7f6077ceeb8992f5f1a5b13c880679a1a5d566584 0.1074 12/2 21.8k
95ac4281a8b82e051baacc400c82728130c1f760b1cb1262b61c262ee135f279 0.1563 26/2 32.5k
64667ba532fcb5f3f26ed0d423a77487681303504e5406af88d2a1b61930d230 0.1856 1/6 38.6k
2d435c870ea2279040f133e3bc676e2ce372d3ca0acc9d3a4983a6b9982cb306 0.4590 2/15 96.2k
5,644 2825d 4:24:34 13.8k 18bef80da7a42e46cc8e1fb8480db80506ac83b54cd5992fff1167d033fcd813 0/2 163
8f9b45d295fa930a7268c2b02034d64e8f5bb2b68ef9e1303e21ca2fc0839c96 0.0684 1/2 13.4k
5,643 2825d 4:24:54 190k 6e31585598dd8caec2864599dc7c56b6e3c56d6726e1090d87cd9fbc87ab47ac 0/2 172
0eff3dd9b6c0a6f23f923c261cc0fe1c42ae7e339aee58680f50d5a93ccce843 0.0684 1/2 13.4k
5013be5097692f292fe560709e672df90608021ee83cd471d8ce9a42c1ba42a4 0.0684 1/2 13.4k
2741f22c1b94d6be12d676db25bbbbd38fa355401bc86a815a0106e6ae0e67f6 0.0684 1/2 13.4k
b46fa0270e9850e66ad0d6faa21537c48b81bd8c6bca1d4d2c61650ba5ad37ea 0.0684 1/2 13.4k
6022cdd690d6d39b4402d5f272c4a16f5af5c93e3b350551d68d16d8fc92243a 0.0684 1/2 13.4k
f8b6ca3ed065baec42212b9c34df344e824d5332d796fe292221213f2c34600e 0.0684 1/2 13.4k
d99050d5dde3d8f41a9a6bee7bdd56850e1bf531e1582da4edd2037e3dcfb051 0.0684 1/2 13.4k
148f571490649a0ea8f76aae2d04acb1b80e0adf152ec9c7ba5207fb3677d93d 0.0684 1/2 13.4k
a132da711044ea63b8bcd60d0f88aa93884ec53440f5df58615fdfeb14d1c23e 0.0684 1/2 13.4k
26bd221c86283ab661643bc00394802ca5ba5870e2f17f20e4a6d43202b14d33 0.0684 1/2 13.4k
fca2d194008f6588550787892ec4c61549fd2a0fbcdbb5cfc345c31d72481451 0.0684 1/2 13.4k
d88f9fa7fe93f0b09bd8aa8445095b41999f670bd335f949ee2cf3cae359d2cb 0.0684 1/2 13.4k
441f6b6c117e9d46dae0733bdabb38188a74b405f84995bfba7f262fad371830 0.0684 1/2 13.4k
cc6186bcd334fe568c04dfdd6e9e9742fe95b1f9eb2710f0f29905f6046c0be3 0.0733 3/2 14.9k
5,642 2825d 4:28:28 388 7892d5a657f15e6dd3d2a6650da7f1228eb0e26c283dc9662bbc77d5965bcf66 0/2 172
5,641 2825d 4:31:08 307k 3e61613f30a533718afaedea27b56600b8e6ef73f78e4d785561df36abcdfdb4 0/2 172
9985e7a53404109cc51182efc4f50c077b7b261da60093e7f13ee63cbcf90315 0.0684 1/2 13.4k
8db8872121464c881414f64218cd42831dc2adf970c9d80fdde8a12098e8ca05 0.0684 1/2 13.4k
3f02638fd2a8173cff9bf9f140d5092fc5b5f6f043c8c294459fc8fcd43f20b4 0.0684 1/2 13.4k
363c28a09c102c15fb2ef10b8c0f506d0a5245ba2bf656c045be8130c18a6f22 0.0684 1/2 13.4k
0d658db99eed0bdc5cb558a0d484f4230f7dc36262f91825d6c44f547f00fed5 0.0684 1/2 13.4k
584905f8d7ab9c6e2fa01abc4607d1c0b93867a2cd80365998adae99a79ce0b1 0.0684 1/2 13.4k
f5e87b876963fb1e3e2fb2d9c70051f5cd9a5f12f5ea6e7f0488f59f35868b88 0.0684 1/2 13.4k
dd65f86bb4f396864807193e26b54db6ac8f635d6cf18ccabdad6be2e06b8c7e 0.0684 1/2 13.4k
692a0caa744fa96f014c98fb7b525ba492e0c2f59301f8c358577bfb432a51d1 0.0684 1/2 13.4k
2d36786368e07dc1a58e4435435f158cc48715d0ed479ae025b4a8e928cd4476 0.0684 1/2 13.4k
6220720ce4ecf9a8e0fac91ddfd9d2ada02b664d6935b89663406b5848d5e353 0.0733 3/2 14.9k
94f9d3c7e0ef6c9a414a1e0928069ded8e4fa9dd4f97d0636936990c8c881c2f 0.0684 2/2 14.2k
ccca2b0eadba5618bd83c515a04f6ca32ca0b76edb1400c8cbb6bc0a014bda03 0.0684 2/2 14.2k
14b0517adf1b056a215970f8bd98a1b334f2cb6a0da30d15489e7c44753ea4f2 0.0684 2/2 14.2k
feee94ef5c428870d69dcecc1860a1e876df409e1d55ea56cc842b05c0051055 0.0684 2/2 14.2k
bf9c1e113e35c391b5898cb5a0e928849e8287d4bb38eb358c0790b80cfc7065 0.0684 2/2 14.2k
91dba72255c539d326c427bb1e57ad7d7b99843724898f9b1e746b8ae7a9e7e1 0.0684 2/2 14.2k
93d1125370e8b712c713734f2418b3587a50d671da63364453b9549cdc7091af 0.0684 2/2 14.2k
ee76664332f3c6005c14fff1894e10ee5cbaa460eed141db17029c728090059e 0.0684 2/2 14.2k
26741446ebc80d5ca458ad6a3230b30c25d9087730e97b5aebbdec708558ad93 0.0684 2/2 14.2k
5335ad6883bc31743b20f082dc5cbc863ff026866b2496c1588555767846762d 0.0684 2/2 14.2k
8e455c774824bbdf500e508bcb3281be1b015e3fdc20b6d7caf4caf033ab0aed 0.0684 2/2 14.2k
5,640 2825d 4:38:46 198k 4de2352275866abea04b5f27f65a53a43ce2597c4097301af6c97ee0f605caf7 0/2 172
4fd5f3d37e929700ad80eccf31a07e9fee80927cd3af09b104b188648a41dffd 0.1563 1/5 32.3k
8edf08ce76e5b95e89c7ff9353e97ddec20423560c6033e2a95031d4cc875bac 0.7911 2/26 166k
5,639 2825d 4:40:32 315k f419fd105a4149963bc8716bf8e63e967d20ced687c01ed154b604463d7133f2 0/2 172
0130b2e5d1d705a322278e96a0845bad407be02364d20aa3f851e25ec1b00897 0.2735 2/2 14.2k
221495d31e874b548953f87081ee6b98500e865f273c7784e5ab49ff97937ae5 0.8595 1/7 44.9k
1fc87255224c4871095e1ec6f31626b80c3d91f17e649d41be9f3f2292e0c4ed 0.5811 2/19 121k
922a4c00908fa2e2d75298eedcd312de1da301b05d7c51636ac50b9cd3ff7301 0.6397 2/21 134k
5,638 2825d 4:44:21 237k 9f23e28c368c12e3e285b251af2c9739456840fa54e135a22346d954847727ba 0/2 172
24ac0cbf9775145a1a1b138ac4292ee4d4cef9cb155eabb772b71c4f26fbd887 0.3125 4/2 15.7k
3e7ccc8356b10fbd2dd6c00e99e3d5f60ae8f339a9bdde24c861146c29ba7ed4 0.0684 1/2 13.4k
9ded9648ee66c291576e8846400c1cbe2afc1b4d9ebcb8d1ad64bd20833d339b 0.0684 1/2 13.4k
174344eaed40eb3fbe23e9406df9d85940fbbd45300838b83c1e0a7db95007f3 0.0684 1/2 13.4k
a395a84eb252b1308bd88011eb188c6c82b743b817a0456e8320348e24c67230 0.0684 1/2 13.4k
643feab51240d9ee4182ab6d181a5903f221976830dc316d1b243d24c5b0b155 0.0684 1/2 13.4k
9c8efcc9b1cd46c9f69ada1e7a4f546221f21c3a676017572b2b4f6d044a89d3 0.0684 1/2 13.4k
cb5f19e236917c2f2e8fd38a2ce06ab4e5ced98dc9b18bce78729601cf725909 0.0684 1/2 13.4k
8785b5917fdd7ae83d4e3c89902fcf832a767dd4fae1a7e3466f2056687b416c 0.0684 1/2 13.4k
754036f8b548589b09bd653794b02460bae9c8ab8e077743c8c27ce740104d45 0.0684 2/2 14.2k
bb9ed7d36a657a2de9a70dfeb08b519c32e9d647a3709d32a7c665d97ba7c402 0.0684 2/2 14.2k
8c4bc343218686cbc7b9c186b8e12aeafe3965a22a920e502e99ee97be1f3d20 0.0684 2/2 14.2k
cda9b69d3363c426d8a59ea3c5d918dda7e92b0faada3a5d8b5b35e6adadb770 0.0684 2/2 14.2k
cf693005aa550e188143a68a4899b0bcb80e300c768b1a97499eb2c82a6556b0 0.0684 2/2 14.2k
ca0ea2d8275071f6ac0ceab364ec9096fbebe125fce303a00b34f801b01be9bb 0.0684 2/2 14.2k
bc71d68358e084673bba194cd8182df9941718a98475f12deecf063420c845a3 0.0684 2/2 14.2k
db9305946cface2e98c17f73015b4daa96c44021920f37419bf120bb036979f6 0.0684 2/2 14.2k
5,637 2825d 4:45:45 300k 5c0a955a7828487ff7b0227b3a96de41d976ca7c4c3afe7783c9ab145fe9506f 0/2 172
052fd844a177a701b21ab12b847c9f72baf72a9d2801eccde1d5efd157aadd1a 0.3321 6/2 17.2k
0b793fb3d1f2bda4b398c4077b4843f8591eaadc01b996df0d0a7dcded2d1aaa 0.0684 1/2 13.4k
cc27f400976f1ec3a38f68e26be0f9afe0d7c2a9a4cc1e2e3f70242a0c3e5e5a 0.0684 1/2 13.4k
bc523b09f7ea3b4f152350414af0412ed3efbbb7dea8a4c8927b19a326f08674 0.0684 1/2 13.4k
2ae5c3dcf1e3e6a0ee3a20abf02289051415f5421715ecc686386212ec90e684 0.0684 1/2 13.4k
01819c4decfa09e95fd90917b1cb05b823e1d88e06c2271fcad04653f18f3323 0.0684 1/2 13.4k
4463c670e49960e5a51ed5f0cd932e7b47b948b1c092c59837344bad4e989d3c 0.0684 1/2 13.4k
71ef5c1013af86cfb4aa10a6f4dae20bf6e5e6e35a2d8fa448c96646c351469f 0.0684 1/2 13.4k
7ac36f2198ef6deaeb00e21734d179e1cdcdb44a0e82fd72955271c40516f244 0.0684 1/2 13.4k
0c9683bc649ac2306ecadfa331b18536787f34315b333625f9ca7f749006f6e5 0.0684 1/2 13.4k
dd817ed81df2379abbd1e938ee16a2bb9dd7b5726f22a28c37ce18a6d74c64e2 0.0684 1/2 13.4k
5d4d833008cd5c81145fbac382cde1d4d9880d084a749f7cf6fc3378c3f1659f 0.0684 1/2 13.4k
508e9daffe8c602255d8e794d5c0cea7abaf07a09e143153bf8eb979b325f357 0.0684 1/2 13.4k
e502e86f63a365266d51ae49b32853e1a44290192d30b4a9ad63e1852ae84e7c 0.0684 1/2 13.4k
7150b428c4472668623700feda070f644ad66794e28beef91fd0ee24d4dfd768 0.0684 1/2 13.4k
a179aa1b016e7373db3fc8600098530ff30c36bcb7fb0009212eff3620d40318 0.0684 1/2 13.4k
d3b34c945d0cf9c8dd349fb2634968dcb00bb8aff00f7fdb8cfc8b9379c7d47a 0.0684 1/2 13.4k
f6bb93dd72babaa72bcc5ce00656e1746e961c3770ebe4017a542751d1b9e716 0.0684 1/2 13.4k
101df5fa4eef23ed109a66656cbfea6372c2a1a12f45124f57d431d862ac0bc4 0.0684 1/2 13.4k
dbf04ae4ba0de719f04ea45c65817d30c37b6f6eb09bf12e5824ab8d9ed6b051 0.0684 1/2 13.4k
eaad276d70dc170188a55ca4e7b7106bd5f5020a1099b88c2f7da7dd8a6d6377 0.0684 1/2 13.4k
2654d3698dd4c735df0bcf5cfaea525b59f7f3232580a5f7efcb10317481cd3b 0.0684 1/2 13.4k
Prev
Current Page: 203188/203753
Next
Showing blocks/page

Session Nodes

18 session nodes awaiting contributions, 0 decommissioned session nodes, and 1551 active session nodes.

Inactive/Decommissioned Session Nodes (0)

These session 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 Session Nodes (1551)

Current storage swarm count: 265

Public Key Contri­butors Operator Fee (%) Staking Requirement Last Reward Height Last Uptime Proof Expiry Date UTC (Estimated)
1f021f0742add530dcc48c57cc7ab7d48b54f6a1e63b5123e41c07a0fce4522e 1/10 25000 2035986 0:19:20 Staking Infinitely
1f512f14d8a238301be69f26762bad25633b7121db8444104da3bb7595a88d0d 1/10 25000 2035987 0:00:44 Staking Infinitely
1f016f2682df03c3cacfc06f53c6f67dae2910295953e9723eaab0bd2c82edc1 1/10 25000 2035988 0:18:08 Staking Infinitely
1f301f21400a69a43286b8f5add7faec26b948de2862a745f71eab822ccd7b1c 1/10 25000 2035989 0:54:07 Staking Infinitely
b11b15aebca70403fa51b416d4539f26ee9a33d60d8c66f10ba3a73414ac0006 2/10 15 25000 2035990 0:36:38 Staking Infinitely
1f001f03f837d01baa809a3c345cfa076103aebc47f53ec79ee314bc33baa6a7 1/10 25000 2035991 0:18:52 Staking Infinitely
1f407f10dac4c058703b56549e9bd7c6abb45406d74cff31727f5e5aafa7d91e 1/10 25000 2035992 0:03:23 Staking Infinitely
1f510f028c7fa4dcd2fbfe897bb9d0aa6135f9e2bcd8997c1797984bfa68b41d 1/10 25000 2035993 0:01:37 Staking Infinitely
37cba182243cd8aecffbfe5db7d61a8625d5eebbee068746b03bc5452e7876a0 2/10 24.95 25000 2035994 0:37:02 Staking Infinitely
1b77bc44b0c948a89cd8c45d76626a97431cdae29cce63fbefaeca24e24529bc 1/10 25000 2035995 0:19:54 Staking Infinitely
+ 1541 more ↪

Click here to see the full session node list (at most 10 are shown here)

Last 3 Appchain checkpoints

Height Block hash Checkpoint Quorum
2037528 e2765495cffa47a32e123a9e80da18c94a667794e9bce65f9e2cf9ce29a394d4 20/20 signatures: ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
2037524 25517ab61be8086f35345a82420a6ff5b6fb12dde4ad461345380849e2cd58d1 20/20 signatures: ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓
2037480 adfa285a68249f31de09c00eb9f6307bc09be46b3b85467cec6e38064c840a80 20/20 signatures: ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

View recent stored testing/checkpoint/blink/pulse quorums