What is Kusama coretime?

Coretime is access to Kusama computation and blockspace. Projects can use bulk coretime for predictable access or on-demand coretime when they need it.

What does an available core mean?

An available core is offered for the next coretime period and has not yet been purchased or renewed. It is different from an idle core in the current period.

Can several parachains share one core?

Yes. Coretime can be partitioned or interlaced so that more than one assignment uses different parts of the same core.

Network resource explorer

Polkadot & Kusama
Coretime Explorer

See which cores are active, which parachains use them, what is available in the next sale, and when the current cycle changes.

Kusama network

Cycle #33 overview

Sale data is fresh Price observed Sep 30, 23:17 UTC

Core map may be stale Assignments updated Sep 26, 23:51 UTC

Coretime block 6,105,112

Current sales cycle #33

Selling access for the period beginning Nov 18, 2026.

Current phase Interlude

Renewal-only window before the public sale starts.

Calculating time remaining…

Available next period 115 cores

17 of 132 offered cores have been sold or renewed.

Current purchase price 100 KSM

Fixed-price floor: 1 KSM.

Where we are now

Sales cycle timeline

Sale dates and the following usage period are different stages of the same cycle.

Now Interlude Renewals have priority Sep 23 – Oct 7
6,051,141 → 6,151,941
Next Price discovery Price decreases over time Oct 7 – Oct 21
6,151,941 → 6,252,741
Next Fixed price Public sale at the floor price Oct 21 – Nov 18
6,252,741 → 6,454,341
Next Coretime begins Assignments move into the new period Nov 18
6,454,341

Current usage period

Core assignment map

140 core positions · 16 active ParaIDs

System / reserved Renewed Bulk Lease Shared Idle now

Next usage period

Renewal radar

Upcoming totals come from the current sale snapshot. Project rows describe access active now.

Renewed for next period 17

Core assignments secured through renewal.

New bulk purchases 0

Sold in this cycle outside renewals.

Still available 115

Offered capacity not yet sold.

Projects on renewed access now 11

Unique ParaIDs, not the number of cores.

Search by project, ParaID or core

Parachain coretime directory

16 projects shown

Project	ParaID	Core now	Access type	Current coverage	Technical period
Acurast Kusama Parachain	`2239`	1 core #24	Renewed bulk coretime	Active until Nov 18, 2026 End of the current usage period	Core #24 `442008 → 447048` Relay block 35,763,840
Amplitude Parachain	`2124`	1 core #22	Renewed bulk coretime	Active until Nov 18, 2026 End of the current usage period	Core #22 `442008 → 447048` Relay block 35,763,840
Asset Hub System / reserved	`1000`	3 cores #0, #6, #7	System / reserved	Active until Nov 18, 2026 End of the current usage period	Core #0 `442008 → 447048` Relay block 35,763,840 Core #6 `442008 → 447048` Relay block 35,763,840 Core #7 `442008 → 447048` Relay block 35,763,840
Basilisk Parachain	`2090`	3 cores #27, #28, #29	Renewed bulk coretime	Active until Nov 18, 2026 End of the current usage period	Core #27 `442008 → 447048` Relay block 35,763,840 Core #28 `442008 → 447048` Relay block 35,763,840 Core #29 `442008 → 447048` Relay block 35,763,840
Bifrost Kusama Parachain	`2001`	1 core #8	Renewed bulk coretime	Active until Nov 18, 2026 End of the current usage period	Core #8 `442008 → 447048` Relay block 35,763,840
Bridge Hub System / reserved	`1002`	1 core #2	System / reserved	Active until Nov 18, 2026 End of the current usage period	Core #2 `442008 → 447048` Relay block 35,763,840
Coretime System / reserved	`1005`	1 core #3	System / reserved	Active until Nov 18, 2026 End of the current usage period	Core #3 `442008 → 447048` Relay block 35,763,840
Curio Parachain	`3339`	1 core #25	Renewed bulk coretime	Active until Nov 18, 2026 End of the current usage period	Core #25 `442008 → 447048` Relay block 35,763,840
Encointer System / reserved	`1001`	1 core #1	System / reserved	Active until Nov 18, 2026 End of the current usage period	Core #1 `442008 → 447048` Relay block 35,763,840
Karura Parachain	`2000`	1 core #9	Renewed bulk coretime	Active until Nov 18, 2026 End of the current usage period	Core #9 `442008 → 447048` Relay block 35,763,840
Kreivo Network Parachain	`2281`	1 core #23	Renewed bulk coretime	Active until Nov 18, 2026 End of the current usage period	Core #23 `442008 → 447048` Relay block 35,763,840
People System / reserved	`1004`	1 core #5	System / reserved	Active until Nov 18, 2026 End of the current usage period	Core #5 `442008 → 447048` Relay block 35,763,840
Quartz Parachain	`2095`	1 core #21	Renewed bulk coretime	Active until Nov 18, 2026 End of the current usage period	Core #21 `442008 → 447048` Relay block 35,763,840
Robonomics Parachain	`2048`	1 core #26	Renewed bulk coretime	Active until Nov 18, 2026 End of the current usage period	Core #26 `442008 → 447048` Relay block 35,763,840
Shiden Network Parachain	`2007`	1 core #10	Renewed bulk coretime	Active until Nov 18, 2026 End of the current usage period	Core #10 `442008 → 447048` Relay block 35,763,840
YAP — Kusama Canary Test parachain	`3392`	10 cores #11, #12, #13, #14, #15, #16, #17, #18, #19, #20	Renewed bulk coretime	Active until Nov 18, 2026 End of the current usage period	Core #11 `442008 → 447048` Relay block 35,763,840 Core #12 `442008 → 447048` Relay block 35,763,840 Core #13 `442008 → 447048` Relay block 35,763,840 Core #14 `442008 → 447048` Relay block 35,763,840 Core #15 `442008 → 447048` Relay block 35,763,840 Core #16 `442008 → 447048` Relay block 35,763,840 Core #17 `442008 → 447048` Relay block 35,763,840 Core #18 `442008 → 447048` Relay block 35,763,840 Core #19 `442008 → 447048` Relay block 35,763,840 Core #20 `442008 → 447048` Relay block 35,763,840