Short answer: TechBullion’s October 16, 2024 announcement advertised six CryptoKeying cloud-mining contracts with stated net profits, but the reviewed announcement does not disclose the contract duration, hash rate, fees, payout conditions, or a reproducible calculation. Those figures are promotional claims, not verified returns. The available evidence does not establish whether CryptoKeying is legitimate or whether customers received the advertised profits.
The announcement is a dated promotion, not evidence that the contracts are currently available. Here is what it said—and what a prospective customer would need to verify before sending money.
What CryptoKeying’s announcement said
TechBullion published “On the eve of the US election – CryptoKeying launches new cloud mining contract” on October 16, 2024. The article promoted a simplified signup process, a claimed $10 reward for new users after successful registration, and six contract tiers. Those are statements in the promotional article, not independently confirmed offers or payouts. Read the TechBullion announcement.
TechBullion’s October 2024 announcement also described CryptoKeying as founded in 2018, headquartered in Surbiton, UK, “legal and financially regulated,” and operating mining equipment in several countries. It claimed the service had more than 2.8 million users. The sources available here do not independently establish those company, regulatory, equipment, or user-count claims.
Recommended Free Tools
#1 Best Overall
- ⚡ Efficient Home ASIC Miner – Up to 1.1 TH/s hashrate with just 18W power consumption (15 J/TH), perfect for home or small office use.
- 🇪🇺 Made in Europe – Designed and manufactured in Europe with premium components for reliability and long-term performance.
- 🔧 BM1370 ASIC Chip (Antminer S21 Pro) – Same chip used in the Antminer S21 Pro for professional-grade mining power in a compact, open-source form.
- 📡 Wi-Fi & USB-C Connectivity – No monitor or keyboard required – configure and monitor easily via web interface
- 🎁 Complete Kit Included – Delivered fully assembled with EU/UK/US 5V 6A power supply, premium fan, 3D-printed stand, and OLED display.
Advertised contract amounts and stated profits
The table reproduces the six investment amounts and net-profit figures listed in TechBullion’s October 16, 2024 announcement. The amounts are claims in that article; they are not verified payouts or independently assessed returns.
| Contract tier named in the announcement | Investment amount listed by TechBullion | Stated net profit listed by TechBullion |
|---|---|---|
| Experience Contract | $100 | $6.6 |
| WhatsMiner M30S+ | $500 | $36.6 |
| Bitcoin Miner S19k Pro | $1,000 | $183.4 |
| WhatsMiner M60S | $3,000 | $894.6 |
| WhatsMiner M66S | $5,000 | $2,142 |
| WhatsMiner M63S+ | $8,000 | $5,409.6 |
The announcement names WhatsMiner M30S+ hardware in one tier. That does not establish that a customer buys or receives a miner; the offer is described as a cloud-mining contract.
Rank #2
- Optimized Solo Mining Performance – Powered by ESP32-D0WD-V3 dual-core MCU and 2.8-inch 240*320 intelligent touchscreen, this board delivers a hashrate of up to 1060KH/s for Bitcoin solo mining (lottery mode). The pre-loaded firmware maximizes efficiency, allowing you to experience the thrill of block finding without expensive hardware.
- True Standalone Operation – No computer required! Built-in WiFi (802.11 b/g/n) and Bluetooth let it connect directly to the network. Simply power via 5V DC (Type-C or Micro USB) and start mining independently. The vivid display shows real-time stats: hash rate, network difficulty, BTC price, job counters, and share acceptance – all at a glance.
- Rich Visual Monitoring & LAN Management – The intuitive interface displays local IP, best difficulty, worker count, total LAN hashrate, and more. Supports multi-device monitoring via NMController software, making it easy to track all your miners on the same network.
- Extensive I/O for Custom Projects – Features RGB LED, TF card slot, temperature/humidity interface, SOP16, extended IO, speaker, and reset/boot buttons. Ideal for developers to integrate sensors, experiment with IoT, or build custom mining dashboards. Example programs and development tools are provided to accelerate your projects.
- Safe, Wide Power Input & Compact Design – Accepts DC 5-20V (0-6A) via 4P 1.25 power base or USB ports, with built-in voltage/current monitoring for stable operation. Compact dimensions (86×50×13.5mm) and wide operating temperature (-20~70°C) allow flexible placement in home labs or industrial environments.
Why the profit figures cannot be checked from the announcement
A stated net profit is meaningful only if the reader can see how it is calculated and what conditions apply. The reviewed TechBullion text does not provide the details needed to reproduce or evaluate these figures:
- Contract duration and when mining or payouts would begin.
- Hash rate assigned to the customer and evidence of the underlying equipment or facility.
- Operating, maintenance, electricity, or other fees and how they affect the stated net profit.
- A payout formula, payout currency, schedule, withdrawal minimum, or conditions that could change or prevent payment.
- Cancellation and refund terms, pool allocation, and the customer’s legal claim if the operator stops paying.
Without those terms, a reader cannot determine whether the figures describe a fixed-term estimate, a particular mining scenario, or a result conditional on undisclosed assumptions. The announcement’s “net profit” label alone does not establish that any customer earned or could withdraw those amounts.
Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsRank #3
Does the evidence show CryptoKeying is legitimate?
It does not settle that question. The announcement is evidence that TechBullion published a promotion and listed the tiers above; it is not independent verification of CryptoKeying’s identity, mining capacity, regulatory status, contract terms, or customer outcomes. The sources reviewed also do not establish current contract availability, current company registration, or customer payout evidence. That is not proof that the service is fraudulent, but it is not a basis for treating the advertised profits as dependable.
There is an important identity distinction in the regulator material. The Financial Conduct Authority (FCA) warning published June 27, 2025 names Crypto Key Limited / crypto-keylimited.com and says that named firm is not authorised by the FCA. It gives an address in Surbiton, but the available sources do not establish that this firm or domain is the same entity as CryptoKeying or cryptokeying.com. The warning should not be treated as an FCA warning about CryptoKeying. Read the FCA warning for Crypto Key Limited / crypto-keylimited.com.
Rank #4
- 1.2TH/s Hashrate — Bitaxe Gamma 601 Bitcoin Miner Powered by BM1370 ASIC chip for efficient SHA-256 Bitcoin mining.
- Low Power Consumption — Bitaxe Gamma 601 1.2TH/S Solo Miner ASIC Miner Only around 15–17W, ideal for desktop and home mining setups.
- 🔓 OPEN-SOURCE BITCOIN MINER – Built on the open-source Bitaxe platform and running AxeOS firmware, this miner gives users full control over configuration, monitoring, firmware updates, and customization. Ideal for developers, makers, and Bitcoin enthusiasts.
- 📶 EASY WI-FI SETUP WITH WEB INTERFACE – Features built-in Wi-Fi and an intuitive browser-based AxeOS dashboard. Configure mining pools, adjust frequency and voltage, monitor hashrate, and view system status without additional software.
- Compact Desktop Design — Small, quiet, and perfect for crypto enthusiasts, collectors, and hobby miners.
What to verify before paying for any cloud-mining contract
The FCA advises consumers to check the Financial Services Register and highlights warning signs such as unrealistic return promises. That general guidance does not determine CryptoKeying’s status. Use the exact legal firm name and domain when checking, and do not assume that a similar name or address identifies the same business. Read the FCA’s crypto investment scam guidance.
Before sending funds, ask the provider for written terms and independently verify the details that affect both the mining claim and your ability to recover funds:
Free tools Windows power users keep installed
One-click scans. No signup required.
Best Value
- SLOT - 6/8/12 GPU slots, support 2 ATX power supplies.
- MATERIAL - The open air mining frame case made up of the highest quality stainless steel material, strong, durable and available. Fully protecting your GPU and eectronic device.
- PERFECT DESIGN - Professional design for mining rig frame, accelerating the air convection, super cooling design for heat dissipation. Enough space reserved between the graphics cards.
- EASY TO INSTALL - Easy to install and strong structure. Keep all cables clean and organized, along with everything in your mining machine.
- NEED TO ASSEMBLE BY YOURSELF - For installation steps, please refer to the user manual. The Frame Only, Not includes Fans or other CPU, GPU, PSU, Motherboards, Cables. If you are not 100% satistifed with this Miner, please feel free to contact us, we will offer you a satisfactory soluiton within 24 hours.
- The contracting legal entity, its registered details, the exact website domain, and any claimed regulatory permissions. Check permissions directly with the relevant regulator; a marketing statement that a service is “regulated” is not confirmation.
- The term, assigned hash rate, mining pool, proof of equipment and facility, fee schedule, and a worked example showing how the advertised profit is calculated.
- The payout currency, formula and schedule, withdrawal minimums, and any conditions that can change payouts.
- Cancellation and refund rights, the governing contract, and what legal recourse you have if mining stops or the operator does not pay.
If the provider cannot supply clear, verifiable answers, the advertised profit is not enough information to make an informed decision. Do not treat a signup reward, a named miner model, or a forecast tied to Bitcoin’s price as evidence that a contract is profitable or that you will be paid.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.




