May 23, 2025, New York — The global leading consumer PayFi infrastructure service provider PolyFlow officially announced a strategic integration partnership with Solana Attestation Service (SAS) at the Solana Accelerate Conference, with both parties jointly promoting on-chain credential and payment trustworthiness, establishing a brand new standard for cross-border settlement, liquidity management, and consumer crypto payment scenarios.
In this collaboration, PolyFlow integrates SAS to directly anchor transaction credentials and user identity authentication data on the Solana chain, ensuring that each payment has the characteristics of traceability, verifiability, and immutability. Based on this integration, PolyFlow has focused on upgrading its Payment ID (PID) system, providing users and enterprises with a unified, multi-chain interoperable on-chain credit passport, helping users, Web3 projects, and DeFi protocols achieve secure, compliant, and efficient payment and settlement experiences.
Actual Application Scenarios: From DePIN SIM Verification to Supply Chain Financial Credentials
In the demonstrated application scenario, PolyFlow applied PID + SAS to its open wireless network project ROAM's eSIM real-name verification scenario. After users complete KYC certification, PolyFlow automatically generates on-chain credentials, and ROAM can verify the authenticity of user credentials based on SAS, automatically issuing Premium eSIM without requiring secondary KYC, greatly improving process efficiency and preventing identity fraud risks.
Besides the eSIM card scenario, the PID+SAS combination will be widely applied in the following areas:
- DeFi Lending and Credit Scoring: Recording users' on-chain credit behaviors (repayment records, staking performance, etc.), providing real-time and trustworthy credit score references for lending protocols.
- Supply Chain Financial Credentials: Anchoring invoices, warehouse receipts, bills of lading, and other credential documents on-chain, enabling financial institutions to instantly verify the authenticity of credentials, accelerating loan disbursement and reducing trade finance fraud risks.
PolyFlow CFO Chuck stated at the Solana Accelerate Conference:
"The integration of SAS truly enables our payment PID system to be on-chain trustworthy and cross-chain mutually recognized, injecting a new generation of trust foundation for DeFi, payment, and supply chain financial ecosystems."
About PolyFlow
PolyFlow is a leading consumer PayFi infrastructure protocol dedicated to bridging traditional payment networks, DeFi, and real-world assets, providing global enterprises with cross-border settlement, liquidity management, and credential-based payment solutions. The team has over 20 years of financial industry experience, has processed payment amounts exceeding $200 million, and its core products cover Solana and multiple chain ecosystems.
🌐 Official Website: https://polyflow.tech/
🤝 Social Media: https://link3.to/polyflow
About Solana Attestation Service (SAS)
SAS is an open-source on-chain credential issuance and verification protocol on the Solana blockchain, supporting developers in customizing credential structures and issuing various on-chain credentials such as KYC certification, Proof of Humanity, and social achievements. Any user or device can be a credential holder, with credentials signed by trusted issuers and verified by validators through the SAS SDK, widely applied in anti-Sybil, compliance review, and user identity authentication scenarios.
