Built together. Clearly shared.

Materials & miners

Contributed NAND and LATCH are first used to assemble miners intended to compete for optimal seats. The remaining materials are used to build regular miners.

TapeOut and Behemoth are separate processors. Each has its own materials, miners, receipts, and two custody pools. Their income never mixes.

Income allocation

Each custody pool applies the fee split to its own BEM income, then divides the participant portion using the NAND and LATCH used by that pool's miners.

1. Accounts for the BEM its own miners bring in.

2. Applies the fee split to that income.

3. Divides income its miners earn while in the pool by the NAND : LATCH used by all the miners it holds.

4. Divides income a newly admitted miner carries in, earned before its admission, by that miner's own NAND : LATCH.

N and L are the materials used by all the miners in that custody pool. n and l are the materials of one newly admitted miner, applied only to the income it carries in: what it earned before its admission and paid to the pool when admitted. Every receipt in the same category receives an equal share of that category's allocation.

Your receipt shares in its processor's Optimal Pool and Regular Pool. Each pool calculates and pays separately; their material balances are never combined before allocation.

When new miners join, income already counted keeps its split, and each newcomer's carried income is split by its own materials, so the order in which the same miners join does not change the result for the same payments. Later income follows the new material mix. The pool keeps fractions of the smallest BEM unit in its ledger and rounds payouts down.

When a miner joins

Illustrative example, not a forecast

The example from the accounting specification, with fees included: of every 105 BEM, receipt holders receive 100.

After the admission, new income is divided by the pool's combined 10 : 10. Version 2.1.0 divided carried income by the pool's new mix instead, so the same miners could produce different results depending on the order in which they joined.

Order independence assumes the same payments: each miner's carried income is what Mining actually pays at its admission, and Mining's own rules, such as its remaining supply, can change that amount with timing or order.

Why the pools are not combined

Illustrative example, not a forecast

Fees are left out of this example to isolate the allocation mechanism; in practice each pool applies the fee split first.

That would move 18 BEM from NAND receipts to LATCH receipts. The Regular Pool earns only 5 BEM here, yet its LATCH-heavy mix would decide how the Optimal Pool's 50 BEM is divided, although the optimal miners were built 90% from NAND.

With 100 NAND and 100 LATCH receipts in this processor, each NAND receipt is entitled to 0.45 BEM from the Optimal Pool plus 0.005 BEM from the Regular Pool, 0.455 BEM in total; each LATCH receipt to 0.05 BEM plus 0.045 BEM, 0.095 BEM in total.

Why ten times more in the Optimal Pool? Only as an illustrative assumption: both pools with 100 units of computing power at an assumed 0.05 BEM per unit, and a 10× multiplier for optimal seats. Neither the multiplier nor any BEM rate is a protocol guarantee.

Your receipts

One NAND contribution is allocated one NAND receipt; one LATCH contribution is allocated one LATCH receipt of the same processor. There are no separate optimal and regular receipts.

Every NAND receipt gets an equal share of the NAND allocation of both its processor's Optimal Pool and Regular Pool. Every LATCH receipt gets an equal share of the LATCH allocation of both its processor's Optimal Pool and Regular Pool.

When receipts become available

1. During the contribution period

   Send NAND or LATCH from your own wallet to the public contribution wallet. The transfer itself does not create a receipt.

2. After the period ends

   Transfers are reconciled by sending address, collection and type. TapeMine sets each wallet's allocation at one receipt per contributed transistor.

3. Receipts are issued

   For each processor, the issuer mints the NAND and LATCH receipts, completes any supply corrections and finalizes issuance, which fixes each receipt supply permanently. The receipts are then moved into the processor's one receipt distributor, which serves both custody pools.

4. Allocations are recorded

   The distributor records which receipt IDs belong to each sending wallet. Once the allocation is finalized, no one can change it, and receipt claims open.

5. Claim your receipts

   Each wallet claims its own receipts, or anyone can deliver them for it; they always go to the recorded sending address. There is no deadline, and mining can start before everyone has claimed.

A custody pool can be activated only after both receipt issuances are finalized with the expected supplies and its bound distributor's allocation is finalized. Receipt claims open at that allocation finalization, before activation. Custody opens later, at the first successful miner admission, which also requires the pool, both receipts and the distributor to have renounced ownership. The receipts and the distributor are shared, so they gate both pools; each pool's own ownership gates only that pool. Income for receipts starts only once miners are admitted.

Receipts still waiting in the distributor earn BEM like any other, so claiming later loses nothing, and unclaimed BEM moves with a receipt when it is transferred. The one-receipt-per-transistor rule is applied by TapeMine when it prepares the allocation; the contracts then record and enforce that allocation, but they do not check that it covers every receipt. A smart-contract wallet that cannot receive ERC-1155 tokens cannot take delivery, so contribute from a wallet you control directly.

Fee structure

Both custody pools apply the same fixed weights to their own income.

Participant receipts : TapeMine : Team-designated recipient : Sink address

• Participant receipts · 95.24%
• TapeMine · 1.19%
• Team-designated recipient · 1.19%
• Sink address · 2.38%

On chain the same ratio is held as whole numbers, 80 : 1 : 1 : 2 of 84 parts, each rounded down on its own in the smallest BEM unit.

Common questions

Fixed rules

What the contract guarantees, and what it does not

• The weights and the sink address are code constants: no one can change them or add another fee.
• A custody pool has no withdrawal: a miner stays in the pool it was admitted to.
• Unclaimed BEM stays with the receipt. If you transfer a receipt, its unclaimed income goes with it.
• Sending materials costs only the BNB network fee of the transfer; the pools' fees apply only to BEM income.
• Income depends on what each pool's miners actually earn. Nothing here promises an amount.