Struct FileLedgerAnchor 

pub struct FileLedgerAnchor { /* private fields */ }

Append-only, hash-linked local ledger of chain-head anchors.

Each successful ChainAnchor::anchor appends one JSONL line whose entry_hash commits to (seq, prev_entry_hash, anchored_hash, timestamp). ChainAnchor::verify reloads the ledger, finds the receipt’s tx_id, and checks both the stored hash and the entry commitment.

This is the production-useful default backend until a public external ledger (OpenTimestamps, Ethereum, …) is selected per deployment.

Implementations

impl FileLedgerAnchor

pub fn open(path: impl Into<PathBuf>) -> Result<Self, String>

Open (or create) a ledger at path. Parent directories are created.

pub fn path(&self) -> &Path

Path of the underlying JSONL ledger.

pub fn load_entries(&self) -> Result<Vec<FileLedgerEntry>, String>

Load all ledger entries (best-effort parse; skips blank lines).

pub fn verify_chain(&self) -> Result<bool, String>

Verify the entire ledger’s hash-link integrity.

Trait Implementations

impl ChainAnchor for FileLedgerAnchor

fn anchor(&self, hash: &[u8; 32]) -> Result<AnchorReceipt, String>

Anchor the given hash to the external backend.

fn verify(&self, receipt: &AnchorReceipt) -> Result<bool, String>

Verify a previously anchored hash against its receipt.

fn backend_name(&self) -> &str

Return the backend name for display/logging.