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Live on Arc Testnet
Send Money
Like a Text.
Private Pay
send
FHE Balances
enhanced_encryption
Agent Rails
smart_toy
ZK Transfers
currency_exchange
SMS Escrow
sms
Private Pay
send
FHE Balances
enhanced_encryption
Agent Rails
smart_toy
ZK Transfers
currency_exchange
SMS Escrow
sms
Privacy infrastructure on Arc Chain: FHE-encrypted balances, ZK-shielded transfers, and private USDC payments to any phone number — for people and for agents.
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ARC TESTNET
In testing phase
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Why PrivacyARC
Why Choose PrivacyARC
One privacy core, two payment surfaces — confidential settlement for people and for machines.
[01/04] // PRIVATE PAY
[+]
Send USDC Like a Text
Enter a phone number and an amount — the recipient claims by SMS link. No app, no seed phrase, no gas.
FEATURE
For People
[02/04] // PRIVACY CORE
[+]
Confidential by Construction FHE + ZK
Balances are FHE ciphertexts; ZK proofs move value unlinkably inside the shielded pool
FEATURE
FHE + ZK
[03/04] // AGENT RAILS
[+]
Bounded Autonomy
Agents pay over x402 with ERC-8004 identity and reputation, capped on-chain by ERC-4337 passports.
FEATURE
For Machines
[04/04] // TESTNET
[+]
Live on Testnet
Battle-testing every flow toward the September 16 mainnet
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Arc Testnet
FEATURE
CHAIN 5042002
Privacy Infrastructure — Built on Arc
hub
Open Standards
hub
integration_instructions
api
sync_alt
account_tree
lan
link
cloud_sync
data_object
extension
merge_type
connect_without_contact
hub
integration_instructions
api
sync_alt
account_tree
lan
link
cloud_sync
data_object
extension
merge_type
connect_without_contact
[+]
PrivacyARC composes the standards for private machine commerce: x402, ERC-8004, ERC-4337, Turnkey, LayerZero, The Graph.
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Featured
Built to
Settle Privately.
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[ The Privacy Stack ]
01
04
FHE CONFIDENTIAL BALANCES.
USDC balances are stored as ciphertexts — contracts add, subtract, and compare homomorphically, so amounts never appear on-chain.
ZK SHIELDED TRANSFERS.
ZK proofs of ownership move value inside the shielded pool — amount, sender, and recipient stay unlinkable.
02
04
03
04
RELAY ORIGIN PROTECTION.
Proofs route through relay nodes that obscure IP and transaction origin — privacy is the default, not an option.
!
!
!
SMS ESCROW & CLAIM LINKS.
Lock USDC to a phone number; the recipient claims through a one-time link with a passkey wallet created on the fly.
04
04
Shielded Pool
USDC
Settlement Asset
Native
article
Case Study
Arc + PrivacyARC Case Study
Testnet
Mainnet
Sept 16, 2026
domain
What Arc Enables
Stablecoin-native financial infrastructure
USDC
5042002
/ Native Gas
/ Testnet
Key Points :
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EVM-compatible Layer-1 built for stablecoin finance
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USDC-denominated, predictable network fees
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ERC-4337 first-class account abstraction
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Testnet live — public mainnet September 16, 2026
speed
What PrivacyARC Adds
The privacy layer for stablecoin settlement
FHE
ZK
/ Encrypted Balances
/ Shielded Settlement
Key Points :
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FHE confidential USDC balances
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ZK shielded settlement + relay origin protection
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SMS escrow & claim links to any phone number
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Private x402 agent payments
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ERC-8004 identity + ERC-4337 hard spend caps
The Road to Mainnet
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Private Core
FHE + ZK + PARC
01
FHE confidential token, ZK shielded pool, and PARC deployed on Arc Testnet.
Consumer Reach
SMS Escrow & Claims
02
SMS escrow, claim-by-link, and on-the-fly wallet creation for recipients.
Privacy Tiers & Relay
Full · Semi · Standard
03
Three privacy tiers, plus relay routing for IP and transaction-origin protection.
Agent Rails
x402 + Passports
04
x402 payment handler, ERC-8004 identity and reputation, ERC-4337 hard spend caps.
Arc Mainnet Launch
September 16, 2026
05
Full public release on Arc Mainnet, activating the PARC fee flywheel.
PRIVACYARC