SOURCE 01
Provider Quorum
Checking daemon Provider policy…
INPUT 02
Independent trust anchor
Loading deterministic trust anchor…
DATA 03
Demo Provider payload
Loading Lighthouse-cross-checked demo fixture…
LIVE, TRUST-MINIMIZED ETHEREUM BOOTSTRAP
Fetch from anyone.
Verify from first principles.
Query multiple Beacon APIs through a locked-down localhost daemon, then independently recompute every header's SSZ tree-hash in your browser.
Your trust anchor must remain independent. Provider claims such as root, canonical, and finalized are displayed as untrusted metadata.
READY
Waiting for verification
The bundled fixture will be verified locally when the page loads.
Mode—
Network—
Providers—
Fetch—
- Independent trusted root
- —
- Anchor-matching computed root
- —
- Redundancy confirmation · not a trust anchor
- — Quorum has not run
- Normalized header agreement
- — Only the five BeaconBlockHeader fields are compared
- Provider-claimed root · untrusted metadata
- — Not reported
- Provider status claims · untrusted metadata
- canonical=not reported · finalized=not reported · execution_optimistic=not reported Captured for context; never used as local proof
- Authenticated state root
- —
Evidence path
—- Load fixturePreparing local inputs
What Verified proves
The fetched header matches the independent block root, so its embedded state_root is authenticated.
What remains unproven
Network identity, finality, canonical-chain membership, complete BeaconState contents, proposer signature, or a running Lighthouse node.
PER-PROVIDER LOCAL VERIFICATION
No response gets a vote before it hashes.
Different origins show transport diversity, not proven organizational independence.
THE LIVE PRODUCT LOOP
One root. Multiple Providers. Every response verified locally.
- 01SelectOne root and 2–3 Provider bases
- 02FetchParallel root-specific API calls
- 03VerifySSZ tree-hash every response
- 04CompareHeader agreement and claim warnings
- 05ExportPer-Provider recomputable evidence