Private key
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COBRA · CRYPTOGRAPHY · ENERGY · COMPUTE
Observe power.
Understand compute.
COBRA integrates Bitcoin network, electricity-system, market and compute data for live monitoring, economic analysis and site-level decision support. The original open cryptographic toolkit remains part of COBRA: create secure randomness, derive Bitcoin addresses locally and inspect the underlying method without surrendering key authority.
BitcoinPower & gridMining economicsCompute intelligenceLocal-first cryptographyPublic APIsOpen interfaces
THE DESERT / MARS TEST
Ever get stranded in a desert — or on another planet — with no internet? No problem.
COBRA Offline creates cryptographic randomness without a continuous connection. Once installed locally, COBRA’s Python tools can also derive Bitcoin mainnet receiving addresses offline — without an account, custodian or central key issuer. Connect compatible wallet software when you need to inspect or move onchain value.
Explore COBRA Offline →COBRA+
Your numbers. Your addresses. Your authority.
No KYC. No COBRA account. No custodian. No centralized key issuer. Address creation stays on your device, and Explorer visibility is your choice.
LOCAL CREATIONPRIVATE BY DEFAULTOPT-IN EXPLORERUSER-CONTROLLED KEYS
ORACLE 01
Create cryptographic randomness
Create integers, hexadecimal strings, raw bytes and UUIDs from your browser's cryptographically secure random source.
OUTPUT
Click “Create random value”.
ORACLE 02
Create Bitcoin address
Create a fresh 256-bit private key locally or supply a valid hexadecimal key and inspect every stage of legacy P2PKH derivation.
Live engine: Browser JavaScript.
Derivation happens on this device; COBRA does not send your
private key to a server.
Explorer listing is off.
Compressed public key
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HASH160
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WIF · compressed mainnet
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Legacy P2PKH address
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The private key/WIF is the controlling secret. COBRA does not upload or retain it. Anyone who obtains it can potentially spend funds controlled by the corresponding address.
THE METHOD
Private key → public key → hash → address.
COBRA follows the Bitcoin derivation method: valid 256-bit scalar → secp256k1 public key → SHA-256 → RIPEMD-160 → Bitcoin mainnet version byte → double-SHA-256 checksum → Base58Check address.
The browser engine performs the derivation locally in JavaScript so the cryptographic steps can be inspected instead of hidden behind a single output field.
RESEARCH TERMINAL
The code, curve and derivation chain behind COBRA.
Inspect the implementation, run the package and follow every stage from entropy to a mainnet P2PKH address.
$ pip install bitcoin-address-generator
from bitcoin_address_generator import generate_wallet
private_key, public_key, address = generate_wallet()
print(f"Bitcoin Address: {address}")
# methodology
entropy → private key
private key × secp256k1 generator point → public key
SHA-256 → RIPEMD-160 → version byte
→ double-SHA-256 checksum → Base58Check → P2PKH addressELLIPTIC CURVE CORE
secp256k1
The private key is a scalar. The corresponding public key is produced by elliptic-curve scalar multiplication on secp256k1 — the curve used by Bitcoin.
y² = x³ + 7 mod p
Public key = private scalar × generator point G
ECDSA METHOD
ADDRESS ARCHITECTURE
COBRA RESEARCH FRONTIER
Cryptography, intelligent systems and the future of value.
COBRA is an open research surface for developers and researchers working on cryptographic sovereignty, resilient infrastructure and verifiable digital systems.
Post-quantum security
Signature agility and migration paths for assets that must survive cryptographic change.
Privacy and sovereignty
Address reuse, metadata exposure, selective disclosure and user-controlled authorization.
Autonomous systems
Machines that can observe and prepare actions while keys remain inside a trusted boundary.
Resilient value
Offline operation, recovery architecture and the preservation of digital claims across time.
TWO INTERFACES, ONE METHOD
Browser engine
Runs locally in JavaScript using the browser cryptographic RNG and pinned cryptographic libraries. Private keys do not need to leave the device.
Python package
Run the address-construction chain locally using Python, ECDSA, hashlib and Base58.
Open Python source ↗WHERE DOES THE ADDRESS GO?
Nowhere. Until someone pays it.
Creating an address does not register an account with COBRA or Bitcoin. If bitcoin is later sent to it, the transaction/output becomes visible on the Bitcoin network. Control comes from the corresponding private key.
Keep the secret
The private key — often represented as WIF for import — enables spending.
Recover with compatible wallet software
A compatible wallet can import or sweep the private key/WIF and discover spendable outputs associated with it.
Lose the key, lose control
COBRA intentionally stores no recovery copy. There is no COBRA password reset for a standalone Bitcoin private key.
POLICY & RESEARCH WATCH
Signals shaping cryptographic systems.
DOJ: Won’t pursue coders merely for writing code
The Criminal Division says writing code without criminal intent is not a crime, drawing an important boundary for developers of neutral tools.
Read the DOJ statement ↗Ethereum maps its post-quantum cryptography transition
Ethereum’s research tracks quantum-resistant changes across signatures, consensus, data availability and proof systems.
Explore the research ↗
LIVE ECOSYSTEM FEED
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Fetching the latest headline…
More live headlines from across the ecosystem
COBRA // NEXT NETWORK
What blockchain would you like next?
Vote, request or suggest the next blockchain integration.
Connecting to global voting…
Submit a network proposal ↗YOUR COBRA CREATION LOG
Your chosen public addresses. Private secrets stay private.
When you opt in, COBRA publishes only the Bitcoin address to the shared Explorer and keeps a copy in this browser. Private keys, WIFs and randomness never enter the registry.
No public addresses have been added from this device.
TECHNICAL & ACADEMIC REFERENCES
Built on documented cryptography.
Bitcoin Address Technical BackgroundVersion 1 address construction and Base58Check.ECDSA / Bitcoin WikiElliptic-curve signature methodology used in Bitcoin.SEC 2: Elliptic Curve ParametersRecommended domain parameters, including secp256k1.ECDSA Python LibraryPython elliptic-curve implementation used by the original
codebase.ECDSA SurveyAcademic survey of ECDSA algorithms and applications.Bitcoin Developer GuidePrivate keys and wallet architecture.Bitcoin Transaction ReferenceP2PKH and address conversion.Blockchain.com ExplorerPublic Bitcoin address verification used by COBRA.
BUILD ON COBRA
Bring your blockchain or cryptography project.
Developers, researchers and teams can use the open-source toolkit, extend the cryptographic pipeline, propose experiments or tell us where COBRA could support their work.
$ pip install git+https://github.com/ol-s-cloud/bitcoin-address-generator.git
$ cobra status
$ cobra generate --network mainnetCOBRA × AI AGENTS
Machine-speed workflows. Controlled authority.
COBRA’s local randomness and address-derivation primitives can be integrated into AI agents, robots and physical-intelligence systems that allocate receiving addresses or prepare payment workflows in real time. Secret-bearing actions remain behind an explicit wallet, signer or policy boundary.
For high-throughput systems, COBRA supplies the randomness and address layer; an audited signer controls transaction execution.
01 / OBSERVE
agent or robot
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02 / PREPARE
COBRA randomness + address
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03 / AUTHORIZE
policy + trusted signer
SHAPE COBRA
What should COBRA roll out next?
Choose the capability that would create the most value for your work.
Connecting to global voting…
Tell us about the use case ↗OPEN INTERFACES · BY OL-S-CLOUD
Inspect the public layer. Build on COBRA.
COBRA publishes open tools, interfaces, documented calculations and reproducible methodology where appropriate. Proprietary intelligence, optimisation and internal operating systems remain outside the public repository.