4 Services from groundcheck.seiche.info

Issues an offline-verifiable Ed25519 attestation that binds an x402 payment receipt to the delivered payload, verifying schema conformance and claim verdicts for agentic commerce accountability.

Verifies factual claims in a text document against live web sources, returning machine-verified verdicts (supported/refuted/unverified), confidence scores, and cited sources for each claim.

Splits input text into atomic, independently checkable factual claims using rule-based decomposition, returning a signed receipt bound to the input hash.

Maps a financial instrument identifier (ticker, ISIN, CUSIP, SEDOL, FIGI, or name) to canonical FIGI records with provenance attestation via Bloomberg open symbology