N. Oyelaran — prompt to Claude.ai (personal)
Jul 27, 2026 at 4:55 PM · Week 8 · event db765c9b-4b0d-4cb1-a636-c1e0523401eeWrite a follow-up note to Espen Winterbourne at (419) 555-0105 about the certificate of deposit maturing next month.
proved by a checksum or a format rule · matched by a pattern, which is a shape, or by the taxonomy or the institution’s dictionary, which are vocabulary markers — neither is a proof
| Data class | Offsets | Proof | Detector |
|---|---|---|---|
| Member PII | 26–44 | pattern match — a shape, not a proof | cmb-member-pii |
One span here is seeded, not re-derived. 26–44 — the name is proven at that offset by the engine’s own name rule, and the identifier pairing that makes it Member PII is seeded rather than re-derived: this excerpt carries no identifier for the combination rule to pair with. The span is counted in every figure on this console; what it is not is a chain an examiner can replay end to end, which is why the evidence package prints only chains that reproduce exactly.
Write a follow-up note to ██████████████████ at (419) 555-0105 about the certificate of deposit maturing next month.
- captured Jul 27, 2026 at 4:55 PMN. Oyelaran (Credit administration manager, Credit Administration) — prompt to Claude.ai (personal).
- classified Jul 27, 2026 at 4:55 PM1 span in member_pii; proof recorded on each span.
- decided Jul 27, 2026 at 4:55 PMwarn under policy v4, from the member_pii cell for the credit role group.
- transformed Jul 27, 2026 at 4:55 PMSafe transform taken on the coach card: 1 span(s) masked in place by offset. Warn does not rewrite anything by itself — the person chose this. The tokenize option is not on for the account_numbers cell in the credit role group under v4, so every span is masked.
- submitted Jul 27, 2026 at 4:55 PMSubmitted to Claude.ai (personal) after transformation; the original text was not sent.
The same chain in JSON: /api/v1/events?id=db765c9b…
472 events matching policy v4
Jun 8 – Aug 14, 2026. Every row drills to the full provenance chain, and every state on this page — filters, page and drill alike — is a URL you can paste to a colleague. The same query as JSON: /api/v1/events?version=v4The 8 people carrying the most of this filter, of 22. Narrow the Person control above to read one of them alone.
| When | Who | Channel · destination | Classes | Decision | Outcome | |
|---|---|---|---|---|---|---|
| Jul 27, 2026 at 4:55 PMWeek 8 | N. OyelaranCredit Administration | promptClaude.ai (personal) | Member PII | Warnv4 | transformed | Chain |
| Jul 27, 2026 at 4:46 PMWeek 8 | A. BergströmCredit Administration | pasteChatGPT (personal) | Credit Memos | Monitorv4 | — | Chain |
| Jul 27, 2026 at 4:41 PMWeek 8 | M. RamaswamyCommercial Lending | pasteM365 Copilot | Loan Files, Member PII | Warnv4 | transformedtrue positive | Chain |
| Jul 27, 2026 at 4:28 PMWeek 8 | K. OseiCommercial Lending | promptChatGPT (personal) | Account Numbers, Member PII | Warnv4 | overridden | Chain |
| Jul 27, 2026 at 4:18 PMWeek 8 | K. OseiCommercial Lending | promptM365 Copilot | Account Numbers | Monitorv4 | — | Chain |
| Jul 27, 2026 at 3:39 PMWeek 8 | N. OyelaranCredit Administration | pasteM365 Copilot | Member PII | Warnv4 | abandoned | Chain |
| Jul 27, 2026 at 3:38 PMWeek 8 | H. DelacroixCredit Administration | pasteGemini Advanced | Member PII | Warnv4 | abandoned | Chain |
| Jul 27, 2026 at 3:35 PMWeek 8 | B. MwangiFinance | pasteChatGPT (personal) | Account Numbers, Member PII | Monitorv4 | — | Chain |
| Jul 27, 2026 at 3:34 PMWeek 8 | N. OyelaranCredit Administration | pasteMicrosoft Copilot (consumer) | Credit Memos, Member PII | Warnv4 | transformed | Chain |
| Jul 27, 2026 at 3:27 PMWeek 8 | J. KowalczykRetail & Branch Ops | pasteGemini Advanced | Account Numbers | Monitorv4 | — | Chain |
| Jul 27, 2026 at 3:01 PMWeek 8 | E. LindqvistFinance | pasteChatGPT (personal) | Account Numbers | Monitorv4 | — | Chain |
| Jul 27, 2026 at 2:47 PMWeek 8 | N. OyelaranCredit Administration | pasteMicrosoft Copilot (consumer) | Member PII, SSN / Tax ID, Account Numbers | Warnv4 | transformed | Chain |
| Jul 27, 2026 at 2:24 PMWeek 8 | T. BeaulieuCommercial Lending | promptClaude.ai (personal) | Loan Files, Member PII | Warnv4 | overridden | Chain |
| Jul 27, 2026 at 2:19 PMWeek 8 | L. TranRetail & Branch Ops | promptChatGPT (personal) | Account Numbers, Member PII | Monitorv4 | — | Chain |
| Jul 27, 2026 at 2:16 PMWeek 8 | T. BeaulieuCommercial Lending | promptChatGPT (personal) | Loan Files | Monitorv4 | — | Chain |
| Jul 27, 2026 at 2:00 PMWeek 8 | K. OseiCommercial Lending | promptGemini Advanced | Member PII, Account Numbers | Warnv4 | transformed | Chain |
| Jul 27, 2026 at 1:56 PMWeek 8 | M. RamaswamyCommercial Lending | pasteGemini Advanced | Member PII, SSN / Tax ID, Account Numbers | Warnv4 | transformed | Chain |
| Jul 27, 2026 at 1:56 PMWeek 8 | N. OyelaranCredit Administration | uploadChatGPT (personal) | Loan Files, Member PII | Warnv4 | abandoned | Chain |
| Jul 27, 2026 at 1:49 PMWeek 8 | M. RamaswamyCommercial Lending | uploadClaude.ai (personal) | Loan Files | Monitorv4 | — | Chain |
| Jul 27, 2026 at 1:38 PMWeek 8 | Y. AbadiCompliance/BSA | pastePerplexity | Member PII | Monitorv4 | — | Chain |
| Jul 27, 2026 at 12:59 PMWeek 8 | P. NakamuraRetail & Branch Ops | promptChatGPT (personal) | Member PII | Monitorv4 | — | Chain |
| Jul 27, 2026 at 12:51 PMWeek 8 | S. AdeyemiRetail & Branch Ops | promptChatGPT (personal) | Account Numbers | Monitorv4 | — | Chain |
| Jul 27, 2026 at 12:48 PMWeek 8 | H. DelacroixCredit Administration | pasteMicrosoft Copilot (consumer) | Credit Memos, Member PII | Warnv4 | transformed | Chain |
| Jul 27, 2026 at 12:34 PMWeek 8 | K. OseiCommercial Lending | promptM365 Copilot | Account Numbers | Monitorv4 | —true positive | Chain |
| Jul 27, 2026 at 12:26 PMWeek 8 | P. NakamuraRetail & Branch Ops | promptGemini Advanced | Member PII | Monitorv4 | — | Chain |