May 23, 2025 | New York — Leading global PayFi infrastructure PolyFlow officially announced a strategic integration partnership with Solana Attestation Service (SAS) at the Solana Accelerate Conference. Together, the two parties will advance the development of on-chain credentialing and trusted payment infrastructure, setting a new standard for cross-border settlements, liquidity management, and tokenized payment applications.

Through this integration, PolyFlow anchors transaction proofs and identity credentials directly on the Solana blockchain, ensuring every transaction is traceable, verifiable, and tamper-proof. This collaboration also upgrades PolyFlow’s flagship Payment ID (PID) system, creating a unified, multi-chain credit passport for enterprises and end-users, enabling secure and compliant use cases across the Web2 real world and Web3 payment & DeFi ecosystems.

Practical Applications: From DePIN eSIM Verification to Supply Chain Finance

In this collaboration, PolyFlow integrates SAS with ROAM, a decentralized wireless network project, to enable seamless eSIM verification. When users complete KYC verification through PolyFlow, an on-chain credential is issued via SAS. ROAM then instantly validates this credential, automatically provisioning Premium eSIMs without the further need for redundant KYC processes. This significantly enhances operational efficiency while mitigating fraud risks.

Beyond eSIM verification, the PID + SAS integration unlocks a wide range of future use cases:

• DeFi Lending & Credit Scoring: Record users’ on-chain credit behaviors (loan repayments, collateral performance, etc.) within PID attestations, enabling lending protocols to access trusted credit scores instantly.
• Supply Chain Finance Certificates: Anchor proofs of authenticity for invoices, warehouse receipts, and bills of lading on-chain through SAS, enabling financiers to release capital faster while reducing fraud risk in trade finance operations.

In essence, PID transforms crypto wallets from simple asset containers into trusted, privacy-preserving carriers of identity and access, capable of serving users’ everyday payment and verification needs with the same, or even greater, utility than a physical wallet.

PolyFlow CFO Chuck:

“Integrating SAS into our Payment ID system establishes a reliable, verifiable on-chain trust layer for our Consumer PayFi infrastructure — setting new standards for DeFi, payments, and global financial services.”

About PolyFlow

PolyFlow is an innovative consumer PayFi protocol bridging traditional finance, DeFi, and real-world assets to power the next generation of crypto payments and settlement infrastructure. Backed by over 20 years of combined finance industry experience and $200M+ in processed transactions, PolyFlow delivers enterprise-grade solutions for liquidity management, cross-border payments, and credentialed digital commerce.
🌐 Website 🤝 Socials

About Solana Attestation Service (SAS)

The Solana Attestation Service (SAS) is an open-source on-chain attestation framework that enables developers to issue and verify decentralized credentials on the Solana blockchain. SAS supports a wide range of attestations — from KYC and Proof of Humanity to social and financial credentials — offering a trustless, privacy-preserving, and compliance-friendly infrastructure for Web3 applications.