# Documentation

- [SeedPay Documentation](/docs): Payment channel protocol for streaming delivery — first proof on BitTorrent with Solana.
- [Data Transfer](/docs/core-protocol/data-transfer): How pieces are served under payment check constraints during a paid session.
- [Handshake Phase](/docs/core-protocol/handshake): How SeedPay extends the BitTorrent handshake to advertise payment support.
- [Protocol Overview](/docs/core-protocol): The four phases of the SeedPay payment protocol flow.
- [Payment Channels](/docs/core-protocol/payment-channels): ECDH key exchange, channel opening, streaming micropayments, and channel closing.
- [Verification Phase](/docs/core-protocol/verification): How seeders independently verify payment channels on-chain before serving data.
- [Design Principles](/docs/getting-started/design-principles): Core design principles and participation model of the SeedPay protocol.
- [What is SeedPay?](/docs/getting-started): An open payment protocol that enables BitTorrent seeders to earn cryptocurrency for sharing files.
- [Blockchain Integration](/docs/implementation/blockchain-integration): Smart contract requirements, token programs, RPC providers, and confirmation levels.
- [Cryptographic Requirements](/docs/implementation/cryptography): Curve25519, HKDF-SHA256, and RNG requirements for SeedPay implementations.
- [Error Handling](/docs/implementation/error-handling): Handling connection drops, RPC failures, invalid checks, timeouts, and recovery procedures.
- [Implementation Overview](/docs/implementation): Practical guidance for implementing SeedPay clients and infrastructure.
- [Solana Proof of Concept](/docs/implementation/solana-poc): Working implementation of SeedPay payment channels on Solana using Anchor, with TypeScript SDK and end-to-end demo.
- [Future Extensions](/docs/reference/future-extensions): Planned and potential extensions to the SeedPay protocol.
- [Message Types](/docs/reference/message-types): Complete reference of all SeedPay extension message formats.
- [References](/docs/reference/references): Standards, specifications, and related work referenced by SeedPay.
- [Economic Attacks](/docs/security/economic-attacks): Analysis of griefing, Sybil, front-running, and replay attacks on SeedPay.
- [Security Overview](/docs/security): Security model, threat landscape, and privacy guarantees of SeedPay.
- [Payment Verification](/docs/security/payment-verification): How SeedPay ensures payment integrity through on-chain verification and cryptographic binding.
- [Privacy Model](/docs/security/privacy): ECDH privacy guarantees, unlinkability, and forward secrecy in SeedPay.