Verify Filecoin
from your own machine.

A pure-Go Filecoin light client. Zero CGo, no filecoin-ffi, no Rust. Every block header, finality cert, and state read verified locally.

Install Lantern View on GitHub →

What Lantern is

A light client that doesn't ask you to trust anyone.

🪶

~1 GB on disk

Headers, F3 certs, hot state. Not 76 GB. Bootstraps in minutes, not hours.

🔐

Verified, not trusted

Every header BLS-verified. F3 finality certificates. DRAND beacons. IPLD state proofs. You don't trust an RPC — you verify it.

⚡

Pure Go, one binary

CGO_ENABLED=0. No filecoin-ffi. No Rust. Cross-compile to Linux/macOS/arm64 from anywhere.

🔌

Lotus-compatible RPC

71/71 of Curio's FULLNODE_API surface. Drop in as a primary or secondary node — your tools won't notice.

🦊

eth_* methods

Full coverage: getBalance, call, estimateGas, sendRawTransaction, feeHistory, newHeads subscriptions. Works with wallets and dapps.

📦

Embeddable

pkg/daemon exposes Lantern as a Go library. Curio Core ships with it embedded.

Trust model

Four cryptographic anchors

Lantern doesn't pick a node and hope. Every claim about the chain is checked against an independent root.

BLS

Every block header's aggregate BLS signature verified locally against the active power table.

Finality certificates from Filecoin's F3 layer give cryptographic finality, not just probabilistic.

DRAND

Beacons fetched and verified against DRAND's public key — the same randomness Filecoin uses for proofs.

IPLD

State reads return content-addressed proofs from the chain itself, not whatever an RPC says.

Install

One line

macOS · Linux · arm64 + amd64. Signed binaries hosted on Cloudflare.

# install

$ curl -fsSL https://get.golantern.io | bash

# run mainnet

$ lantern daemon

# run calibration

$ lantern daemon --filecoin-network=calibration

Prefer to build from source? github.com/Reiers/lantern

Embed

A chain node, in your binary

Since v1.5.0, Lantern ships pkg/daemon — an embeddable Daemon API. Pull it in as a Go dependency, mint your own admin JWT, and call it like any local server.

// go.mod
require github.com/Reiers/lantern v1.5.3

// main.go
import "github.com/Reiers/lantern/pkg/daemon"

d, _ := daemon.New(daemon.Config{
    Network: "mainnet",
    DataDir: "/var/lib/lantern",
})
// Lotus-compatible /rpc/v1 served in-process
go d.Run(ctx)
token := d.AdminToken()

See it in production: Curio Core →

Releases

Shipping fast

v1.5.3 · current

web3_clientVersion + CORS + eth_subscribe (newHeads). VMBridge fallback for randomness.
v1.5.2

StateGetRandomnessDigestFromBeacon for PDP ProveTask. ETH-shape miner+hash in eth_getBlockByNumber.
v1.5.0

Embeddable pkg/daemon. Inline JSON-RPC. AdminToken minting. The release that made Curio Core possible.
v1.4.0

Full eth_* coverage. net_version. Clean SIGTERM shutdown.
v1.3.0

Calibration support. Per-network data dir + migration.
v1.2.1

The SP-failover release. Sync lag 0 epochs ~65% of the time. DHT prefix fix (peer count 4 → 80).