Signed, Verifiable Attestation for Regulated Capital Markets

Every instrument that moves from human to agent must first climb verification. We are the Y-axis — the attestation layer that makes A2A finance legal, buyer-side only, never the scored.

Verify a live signed receipt Book a pack Pricing

The Y-axis of finance

Automation moves along the X-axis (human → agent, T+2 → T+0). But a regulated instrument cannot move without climbing the Y-axis — verification, compliance, attestation. Without it, A2A bond trade is illegal (no compliance). With it, inevitable. We supply the Y-axis.

Regulatory hooks (the buy-side window)

Regime	Date	Attestation needed
EU AI Act Art 50	live 2 Aug 2026	binary disclosure/marking evidence (fintech AI)
MiCA / FCA	live	crypto-asset + AI-in-finance evidence
Illinois SB 315	audits Jan 2028	independent third-party audit evidence
Basel / systemic	continuous	live risk + provenance measurement

What we attest

Signed receipt

Ed25519-signed on a signing node (key never leaves),
embeds {sig, body_sha256, pubkey}.

Live verification

Verify in-browser, zero trust: csoai-verify.pages.dev/verify

Independence

Buyer/insurer/regulator-pays only. Never the scored.
No issuer-pays (the Moody's trap you refuse).

Agent identity

Signed agent credentials → the trust layer A2A finance requires.

Pricing

Evidence scoring

€8–20k

Art 50 / MiCA / SB 315 evidence-quality

Attestation pack

€25–80k

signed receipt + method + ledger

Continuous

€5–15k/yr

live re-measurement, surveillance

Receipt / API

entry

per-signed-attestation

The proof is live

19 signed artifacts Ed25519 verified — pubkey bWbk52E47J6EkY4+pu0Hh/B1l1175AZoZsDEBr0EfWA=. The attestation estate verifies in-browser.

Open the live verification

Council of AI (CSOAI Ltd, UK #16939677) · measurement, not certification · buyer-side, signed, verifiable. Signed on the signing node; the Ed25519 private key never leaves the pod. PQC path: ML-DSA-65.