internal/

Package bitcoin provides BIP 37 partial merkle tree verification and thin wrappers around btcsuite/btcd for transaction and txoutproof parsing.

Package config resolves the CLI's runtime configuration from compiled defaults, an optional TOML config file, environment variables, and command-line flags — in that order, with later sources overriding earlier ones.

Package external fetches supplementary data from public blockchains (Stellar Horizon, Bitcoin block explorers) to corroborate proofs against real-world public records.

Package httpclient provides a shared HTTP client for all external API calls.

Package items provides API operations for Truestamp items.

Package proof parses, downloads, and generates Truestamp proof bundles in both JSON and CBOR wire formats.

Package tscrypto implements the Truestamp-specific cryptographic primitives used by proofs: SHA-256 with one-byte domain-separation prefixes (see docs/CRYPTOGRAPHY.md in truestamp-v2 for the prefix registry) and Ed25519 signature verification.

Package ui provides shared styling for the Truestamp CLI using lipgloss v2.

Package verify runs the end-to-end cryptographic verification pipeline against a parsed proof bundle: signing-key lookup against the public keyring, Ed25519 signature check, Merkle-inclusion proof, block hash chain, and optional public-blockchain commitments (Stellar, Bitcoin).

Package version provides build-time version information.