VAULT · WATCH-ONLY HOLDINGS
this field cannot accept a private key
Public addresses across chains; balances via known public endpoints (Bitcoin
reads via the Neutrino watch-only client). Watch-only by construction — the
input physically rejects any private key or seed phrase. Keep secrets cold,
off this machine.
⛓ Bitcoin · Neutrino watch-only
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Trust-minimized, watch-only — holds no keys. Add a Bitcoin
address or xpub below to track it.
Reads the Bitcoin chain by peering with nodes and verifying locally
(PoW headers + filter commitments + cross-peer agreement) — no
block-explorer to trust, no 600GB chain (headers only, ~65MB).
Filters are matched on this machine, so peers never learn which
addresses you watch.
Add a WATCH-ONLY public address or xpub — never a private key or seed phrase.
Supported: Bitcoin (1.../3.../bc1.../xpub, read via Neutrino above),
Ethereum, and the EVM L2s (Polygon, Arbitrum, Base, Optimism — one 0x address
checked across all), plus Solana. Secrets stay cold, off this machine — the
field structurally rejects a private key or seed.
Sovereign by default: this viewer stores + displays your
addresses as your own ledger and queries nothing — zero egress.
Fetching live balances calls a public block-explorer/RPC, which
logs which addresses you asked about (linking holdings to you).
That's an explicit opt-in below. The fully-sovereign live path
(Neutrino/BIP158 for Bitcoin, a verifying client + Tor for EVM) is a
separate build — it reads from the chain's peer network with local
verification, so no single service learns what you hold.
No watched addresses yet. Add a public address above to start
tracking holdings across chains.