One signed call for any US stock ticker OR major crypto (BTC, ETH, SOL, and more): a verifiable Ed25519 receipt (supership.bundle.v1) sealing — equities: fresh SEC filings (10-K/10-Q/8-K/Form 4) + a live price; crypto: live market data (price, market cap, 24h volume + change) — plus a source-trust verdict. The receipt is the product: cite it as provenance. Verify at /api/pubkey. supership brokers and witnesses; not a price oracle.