Short answer. A gas block, also called a train car, is capacity on the JIL Layer-1 reserved in advance for one holder. It is made of whole blocks of 2,500 Capacity Units, loaded by tier and turn instead of by fee bid, so the cost is a published schedule and not an auction.
On a public chain every transaction bids for space in one auction. When demand spikes, fees spike, large settlements wait, and bots take value by reordering. A treasury cannot budget around that. JIL replaces the auction with reserved capacity: you charter a car, and the chain loads it on a fixed rule.
One Capacity Unit (CU) is the larger of two costs, each rounded up: the serialized bytes divided by 256, or the compute gas divided by 10,000. One standard block is 2,500 CU, which is 640,000 bytes or 25,000,000 compute gas. A payload that needs 3,000 CU takes two whole blocks.
The second block carries 500 CU of payload and keeps 2,000 CU of headroom. That headroom stays empty. No other payload is packed into it, so unrelated counterparties never share a block.
The dispatcher runs in turns. A turn loads Express cars first, then Commercial, then Economy. Every fourth turn the order reverses and Economy loads first, so batch work is never starved. Capacity is metered over an 86,400 second operating day, and unused weight in a turn is not rolled forward.
A car is a reservation and a priority position. It is not simultaneous bandwidth: one chain block can hold about 16 full cars, because the chain block limit is 10,485,760 bytes and a standard block is 640,000 bytes.
A car is chartered for 36 months. The charter fee is $10,000 for an Express car, $3,500 for a Commercial car and $1,250 for an Economy car, and the holder also posts a JIL.ai performance bond. The full schedule is in the fleet and charter guide. When a car carries a corridor transfer it earns an equal share of the lessor points of the toll, explained in how the corridor toll works.
This is the published charter schedule. The chain's fee engine is being brought into line with it, and no charter is active until a charter agreement is signed and the sanctions and KYC or KYB screens are cleared. Counsel review is under way. No JIL.ai sale is open and no purchases are being accepted. JIL.ai tokens have already been given to participants. No license, registration or regulatory approval is claimed or held for JIL.ai, and nothing here is investment, legal, or tax advice.
