PolyFlow builds next‑generation PayFi infrastructure that unites traditional and crypto payments with decentralized finance. By integrating the Solana Attestation Service (SAS), we anchor transaction proofs and user credentials directly on‑chain, ensuring every payment is traceable, verifiable, and tamper‑proof. Our team leverages SAS to power our Payment ID (PID) system—creating a unified, multi‑chain credit passport that enterprises and end‑users can trust for cross‑border settlements, liquidity management, and tokenized payments across the Solana ecosystem.
SIM Verification
Through the integration of PID and SAS, PolyFlow enables ROAM—a DePIN open wireless network using OpenRoaming & eSIM—to issue and verify on‑chain credentials for SIM cards. When a KYC’d user requests a ROAM phone plan, the verifier validates the on‑chain attestation to approve SIM issuance directly and securely without the user needing to KYC again.
This flow guarantees that each ROAM SIM is issued only to verified users, removing fraud risk and automating credential checks in a decentralized, privacy‑preserving manner.
In addition to the current ROAM SIM card verification, the PID + SAS integration can support a wide range of future scenarios:
- DeFi Lending & Credit Scoring Record users’ on‑chain credit behaviors (repayment history, collateral performance, etc.) in PID attestations, enabling lending protocols to plug in trusted credit scores instantly.
- Supply Chain Finance Certificates Anchor proofs of authenticity for invoices, warehouse receipts, or bills of lading on‑chain via SAS, allowing financiers to disburse funds faster and reduce fraud risk in trade finance and factoring.
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🌐 Website →https://polyflow.tech/
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