Verifiable on-chain eUTXO coinbase outputs mined by this device
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๐ค Send Shielded PCASH
Available: 0.0000
Thermodynamic Fee:0.0001 PCASH (PID Damped)
ZK Prover Constraints:1,842 (BabyJubjub Session)
Authorization:Passkey Enclave Delegation
Generating ZK Spend Proof...0 ms
โ Spend Executed & Settled
Just now
Sent Amount:0.0000 PCASH
Recipient:pc1q...
Network Relay:โ Global P2P Mesh (Live)
๐๏ธ eUTXO Transfer Voucher
Guaranteed 1-Click Credit
If Browser B doesn't reflect automatically (due to ad-blockers, private tabs, or isolated networks), copy this voucher and redeem it directly in Browser B's Receive modal:
๐ฅ Receive ProofCash
Vault Receiving Address:
pc1q...
โก Instant Voucher Redemption
Air-Gap Guaranteed
Paste an eUTXO Transfer Voucher from another browser or device to credit your balance immediately:
Cross-Browser P2P Mesh:โ Global P2P Mesh (Live & Synced)
Clear stored session keys, passkey credentials, and eUTXOs:
๐พ Encrypted Backup & Recovery
Authenticator Engine:
Checking...
Origin Context:localhost (Secure)
Biometric Notice: Native system biometric prompts (Touch / Face / Windows Hello) require HTTPS or localhost. If accessed via a local network IP (http://192.168.x.x), the browser blocks the native hardware biometric dialog and safely uses software enclave emulation.
Exports a cryptographically sealed keystore file (PBKDF2-SHA256 100k + AES-256-GCM) containing your vaults, addresses, and passkey delegation keys.
โ๏ธRecommended: Save to Google Drive or Apple iCloud
Because this keystore file is sealed with AES-256-GCM (100,000 PBKDF2 rounds), it is mathematically safe to store in Google Drive, Apple iCloud Drive, or Dropbox. Even if your cloud drive account is accessed, attackers cannot read your wallet without your secret passphrase.
๐ iCloud Drive Safe๐ Google Drive Safe๐ End-to-End Encrypted
Select an exported ProofCash keystore .json file and provide your passphrase to recover all accounts and funds.
Type or paste your 24-word ZK recovery seed separated by spaces. Your deterministic root key, address, and balance history will be derived and recovered.
โ ๏ธ Cold Storage Backup: Write down these 24 words on paper. Never paste them into unverified apps.
๐
ProofCash User Guide & Jargon Buster
v1.4
Everything you need to know about options, features, and technical terms in plain English
๐ Welcome to ProofCash! ProofCash is the world's first autonomous zero-knowledge currency designed for both humans and AI agents with zero seed phrases and zero pre-mine. Here is how to use it in 60 seconds:
1Claim Testnet Coins
Tap the purple ๐ฐ +50 Faucet button to credit 50.0 PCASH immediately into your active vault.
2Test Mobile Edge Mining
Open the Miner tab, select Eco Profile, and click Start Mining. Your phone or computer solves real blocks and earns +100 PCASH per block!
3Send to Friends or Devices
Click Send, enter any address, and sign with your passkey. Copy the eUTXO Voucher for guaranteed instant redemption on any other device.
4Back Up to Cloud
Click ๐พ Backup & Recovery to export your encrypted keystore file or save it securely to Google Drive or Apple iCloud.
๐ฆMulti-Account Vaults & '+ New Vault'
Account Isolation
What it does: Allows you to create and switch between unlimited isolated wallets (e.g. Daily Spending, Cold Savings, or Merchant Vault) under a single passkey. Each vault has its own unique shielded address (pc1q...) and ledger history so transactions can never be linked together.
๐คSend & Receive (Shielded Spend)
1,842 ZK Constraints
What it does: Sends payments directly between accounts or to autonomous AI agents (agent://...). Unlike old blockchains, ProofCash evaluates a mathematical Zero-Knowledge (ZK) STARK proof directly on your device in < 45 milliseconds, hiding your identity while mathematically proving the funds are real.
๐๏ธInstant eUTXO Transfer Voucher
Air-Gap Guaranteed
What it does: Solves network and firewall delays. When you send funds, a bearer voucher (PCASH-VOUCHER:...) is generated. If the recipient is offline or has an ad-blocker blocking WebSockets, they simply paste the voucher into the Receive modal and click Redeem Voucher to reflect the balance instantly.
๐ฑMobile & Edge Thermodynamic Miner
Blake3 SIMD PoSW
What it does: Allows smartphones, laptops, and browser tabs to mine real block subsidies (+100.0 PCASH) without massive ASIC server warehouses.
๐ข Eco: 1 thread, battery-safe duty cycle
๐ก Standard: Balanced laptop mining
๐ด Nightstand: Max hashrate when plugged in
๐Two-Tier Biometric Passkey Enclave
No Seed Phrases
What it does: Completely removes vulnerable 12-word seed phrases. Your device's physical security chip (Apple Secure Enclave, Android Titan M, Windows Hello) signs a 24-hour delegation certificate for an ephemeral BabyJubjub key, letting you make payments all day at lightning speed without repeated biometric prompts.
๐คAI Micro-Payment Streaming Channels
0.000001 PCASH / Token
What it does: Continuous real-time payment channels for autonomous AI agents. Streams nano-payments every 120ms without individual blockchain transaction fees.
Alphabetical dictionary of ProofCash and zero-knowledge crypto terminology explained simply:
AIR (Algebraic Intermediate Representation)1,842 Constraints
The set of mathematical polynomial equations verified by the zero-knowledge prover. While standard WebAuthn requires 350,000 equations (taking 8+ seconds and heating up your phone), ProofCash Two-Tier uses only 1,842 equations, completing in < 45 milliseconds!
eUTXO (Extended Unspent Transaction Output)Digital Paper Cash
Unlike Ethereum accounts that lock your whole account while a transfer is pending, eUTXOs work exactly like paper dollar bills with serial numbers. You can spend multiple bills simultaneously in parallel without any congestion.
Nullifier & CommitmentPrivacy Shield
A Commitment is the cryptographic envelope that hides how much money you have. A Nullifier is the serial number published when you spend a coin to prevent double-spending without revealing your address.
Pico-Joules (pJ)10โปยนยฒ Energy Unit
The smallest unit of ProofCash (1 PCASH = 1,000,000,000,000 pJ). Named after the physical unit of energy (joules) to reflect the thermodynamic compute underpinning the network.
PoSW (Proof-of-Succinct-Work)Fair Energy Mining
The consensus mechanism that mints new ProofCash. Unlike Bitcoin which requires massive industrial ASIC power plants, PoSW is optimized for consumer CPUs and phones using Blake3 SIMD instructions.
Zero Pre-Mine100% Fair Launch
Founders, venture capitalists, and creators received exactly 0.0000 PCASH at Genesis Block #0. All coins in circulation must be mined through real energy or earned from peers.
Q: Why didn't my transfer reflect automatically in the other browser?
Browsers isolate local storage between private windows and different browsers (e.g. Chrome vs Firefox). Additionally, ad-blockers or firewalls often block outgoing WebSocket relays. Simply copy the eUTXO Transfer Voucher from the sender and paste it into the receiver's Receive modal to reflect instantly!
Q: What happens if I clear my browser cookies or switch to a new phone?
Because ProofCash is a decentralized PWA running in your browser, always use Backup & Recovery to export your encrypted keystore file, save it to Google Drive / Apple iCloud, or write down your unique 24-Word ZK Recovery Phrase. You can restore your vaults in seconds on any device with either method.
Q: Are the mined PCASH coins real money?
In Testnet Mode, coins are fully functional simulated energy units for learning and testing with zero fiat value. On the upcoming Genesis Mainnet, coins are anchored by real thermodynamic energy with permanent value.