GrnBit (Cayman) Holdings · Cayman Islands
A Bitcoin-accumulation company.
A miner built so its fuel gets cheaper as everyone else's gets dearer. GrnBit mines on the cheapest power available at each stage of the cycle — bought grid power today, waste it is paid to take tomorrow — runs the software that makes every watt do more, and holds what it mines.
Plant and software together make coin whose fuel would otherwise have been methane. That is the name: green Bitcoin.
What we do
Two engines. Grid now, free fuel next. Software is the constant across both.
The whole company reduces to one question: what is the cheapest power you can mine on, and can you keep the coin it makes? Everything else — Texas, Panama, the software, the funds — answers that question at a particular moment in the cycle.
Engine one · grid, now
Corporate mining, Texas
Bought power at Miracle Lake, Atascosa County, on current hardware — a first trial fleet on our own balance sheet, held outright and unpledged, with the build-out on the verified result. It funds and proves everything while engine two is built, and is the bridge across this cycle. Coin mined here goes to company custody and is held at our election.
Engine two · free fuel, next
Waste-to-energy, Panama
Grid mining tightens with each halving; waste does not. A plant closes a town's dump, mines on the power it makes, and pays the town in coin — and its fuel cost no longer moves with the halving. The host municipality is not charged for the waste it delivers: it commits the stream and is paid a share of the Bitcoin that waste mines. Commercial haulers and private contractors pay a gate fee at the scales, as at any disposal facility. Privately financed.
The constant · OCTO AI
Runs both
The watt does not care whether it came from a grid or from garbage. OCTO makes every watt do more — on any fuel, on any fleet — and carries across as the fuel migrates from bought to free. The only thing here we would license out.
Why waste
The industry is selling its sites to AI. We are staying, and waste is why.
Listed miners are converting power, land and cooling to AI hosting, and selling the coin to fund the move. We are accumulating the coin they are selling, on fuel they cannot reach, with software they would not buy.
The exit is rational
A megawatt hosting compute earns more than a megawatt mining on bought power. For a grid miner that is the right decision — and an exit. Every operator who takes it lowers the difficulty for the ones who stay.
What is left is power nobody else wants
After the exit, mining belongs to whoever has power with no better use: stranded, flared, or waste. Waste is the largest, it is paid to take, and it comes with a municipal partner who wants the dump closed.
Holding beats earning
Most miners sell coin monthly to pay for power — a fiat business in Bitcoin clothing. A plant with no power bill has no monthly conversion forced on it: its own fiat lines — gate fees, metals, carbon — meet operating cost first, and coin is sold only for what they leave.
The site gives water
Where a data centre draws down a town's water, this plant is stated by its builder to be net water-positive — wet feed, recovered condensate, closed-loop cooling.
How it works
Four parts. Each is known; the assembly is new.
Waste-to-energy plants have failed for three reasons — no buyer for the power, a single machine that stops, and capital that needs a public purse behind it. Each part below answers one of them.
The process
Batch, not continuous
Carbon Black Global's patented thermal conversion runs on discrete batch charges rather than a single continuous train. One unit down reduces the plant; it does not stop it. Carbon Black Global states that its process reduces the volume of waste by 90% and greenhouse gases by 95%.
The load
A fleet behind the fence
The project’s own mining fleet, inside the fence, consumes every kilowatt-hour the plant makes — no power is sold. No interconnection queue, no power purchaser to find. A load at the plant is what has always been missing.
The layer
OCTO runs both
OCTO sequences firings so a batch field behaves like a continuous plant, and runs the fleet at the edge of its capacity, within its limits — reliably throttled for the highest reward, safely.
The structure
Private capital, public problem
Cayman vehicles under a CIMA-regulated manager let private capital do what has always needed public money. The town stops dumping and closes its dump — funded by the coin the waste mines and the fees the commercial stream pays, not by the public purse.
We do not build or run plants, and we are not the funds’ manager of record. Green Concepts International builds and operates; Carbon Black Global licenses the process; CV5 Capital is fund manager of record and GrnBit is investment manager; Xplor supplies the miners. We are the miner whose presence makes the plant financeable — the buyer of its power, the orchestration that runs it, and the sponsor that structures it without asking the host municipality to pay for its own waste.
OCTO AI
OCTO turns industrial operations into coordinated, intelligent systems.
Three levers decide a miner's life: the cost of the fuel, the efficiency of the machine, and the work pulled from each watt. Everyone has the second. Few have the first. Almost nobody has the third — and that is what OCTO AI is.
Multi-agent coordination
Specialised agents for power, thermal and compute act together toward one objective, in real time.
Per-node modelling
Every machine runs its own live model, so the system adapts to the actual fleet's physics rather than a datasheet.
Cross-vertical transfer
What the engine learns on one fleet carries to the next vertical. The advantage compounds.
Bitcoin mining · Texas
Proving ground
Power · thermal · compute
One engine
OCTO AI coordination engine
Many verticals
Waste-to-energy · Panama
Expansion
Duty cycle · heat & power · Bitcoin load
Reliably throttled for the highest reward, safely. The question that produced OCTO was an old Cayman one — how do you run a vessel at full capacity without breaking it? The answer is a system that holds every machine at the edge of its limits, within them.
Where we stand
Three places. Stated plainly.
Cayman Islands
The company
GrnBit (Cayman) Holdings — a Cayman Islands exempted company incorporated in 2015 and carrying its present name since January 2024. Owns OCTO. Investment manager to the funds it sponsors, registered with the Cayman Islands Monetary Authority in respect of that business; CV5 Capital is fund manager of record.
Texas
The first fleet
Miracle Lake, Atascosa County. The corporate fleet is funded at the company's close and is one of the fleets on which OCTO is measured live. Nothing is mining today.
Panama
The waste-to-energy platform
Letters of intent with two municipalities, Chitré and Chepo; GrnBit Panama in formation. Five deployments by 2030 is the ambition — each gated on its own municipal instrument and its own financing.
Pre-revenue. No plant built. No binding municipal contract yet. Where a figure is not yet verified, we mark it; where a document does not yet exist, we say so. A reader should not have to find that out for themselves.
Team
Two founders who build and operate. The specialists run their part.
Christopher L. Kaufman
Founder, Managing Director & CEO
Carries capital formation, the municipal relationships behind the Panama letters of intent, and the waste-to-energy and closure workstreams. Director of GrnBit (Cayman) Holdings.
Dustin Jackson
Founder & Chief Technology Officer
Architect of OCTO — control logic, telemetry, and the certification methodology by which the platform claim is to be independently tested. A certified Microsoft AI engineer. Director of GrnBit (Cayman) Holdings.
The work we do not do ourselves
The one line
A miner built so its fuel gets cheaper while everyone else's gets dearer — grid today, free tomorrow, software across both, and the coin held the whole way.
Investors and contact
We state no terms here.
GrnBit raises its own capital privately, to named recipients, and describes no instrument on this site. Interests in the funds GrnBit sponsors are offered only by those funds themselves, under their own offering documents, to qualified investors outside the United States — not here. CV5 Capital is fund manager of record and GrnBit is investment manager; the offer is the funds’ alone.
Nothing on this site is an offer to sell, or a solicitation of an offer to buy, any security or fund interest. Any investment in GrnBit or in a fund it sponsors is speculative, illiquid and may lose its entire value.
Grand Cayman, Cayman Islands
