P. Nakamura — prompt to ChatGPT (personal)
Jul 28, 2026 at 10:26 AM · Week 8 · event 2ed9d14b-0641-4868-99e3-dd6e69700029Write a follow-up note to Fiona Prieto at (419) 555-0173 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 | 26–38 | pattern match — a shape, not a proof | cmb-member-pii |
One span here is seeded, not re-derived. 26–38 — 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.
- captured Jul 28, 2026 at 10:26 AMP. Nakamura (Deposit operations analyst, Retail & Branch Ops) — prompt to ChatGPT (personal).
- classified Jul 28, 2026 at 10:26 AM1 span in member_pii; proof recorded on each span.
- decided Jul 28, 2026 at 10:26 AMmonitor under policy v4, from the member_pii cell for the operations role group.
- submitted Jul 28, 2026 at 10:26 AMSubmitted to ChatGPT (personal) as typed.
- adjudicated Jul 28, 2026 at 5:30 PMMarked a true positive by Y. Abadi in triage.
The same chain in JSON: /api/v1/events?id=2ed9d14b…
2,182 events across the pilot
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/eventsThe 8 people carrying the most of this filter, of 24. Narrow the Person control above to read one of them alone.
| When | Who | Channel · destination | Classes | Decision | Outcome | |
|---|---|---|---|---|---|---|
| Aug 14, 2026 at 5:41 PMWeek 10 | B. MwangiFinance | pasteGemini Advanced | Member PII, Account Numbers | Monitorv5 | — | Chain |
| Aug 14, 2026 at 5:21 PMWeek 10 | A. BergströmCredit Administration | uploadClaude.ai (personal) | Credit Memos, Member PII | Warnv5 | transformed | Chain |
| Aug 14, 2026 at 4:35 PMWeek 10 | J. KowalczykRetail & Branch Ops | promptClaude.ai (personal) | Account Numbers | Monitorv5 | — | Chain |
| Aug 14, 2026 at 4:34 PMWeek 10 | T. BeaulieuCommercial Lending | uploadClaude.ai (personal) | Credit Memos, Member PII | Redactv5 | — | Chain |
| Aug 14, 2026 at 4:28 PMWeek 10 | I. QuinteroRetail & Branch Ops | promptPerplexity | Account Numbers | Monitorv5 | — | Chain |
| Aug 14, 2026 at 4:26 PMWeek 10 | A. BergströmCredit Administration | promptChatGPT (personal) | Account Numbers, Member PII | Warnv5 | overridden | Chain |
| Aug 14, 2026 at 4:08 PMWeek 10 | B. MwangiFinance | promptClaude.ai (personal) | Account Numbers | Monitorv5 | — | Chain |
| Aug 14, 2026 at 3:46 PMWeek 10 | N. OyelaranCredit Administration | pasteClaude.ai (personal) | Member PII | Warnv5 | redirected | Chain |
| Aug 14, 2026 at 3:42 PMWeek 10 | T. BeaulieuCommercial Lending | pasteChatGPT (personal) | Loan Files, Member PII | Redactv5 | — | Chain |
| Aug 14, 2026 at 3:32 PMWeek 10 | R. OkaforCommercial Lending | pasteMicrosoft Copilot (consumer) | Member PII | Redactv5 | — | Chain |
| Aug 14, 2026 at 3:29 PMWeek 10 | N. OyelaranCredit Administration | uploadGemini Advanced | Credit Memos, Member PII | Warnv5 | abandoned | Chain |
| Aug 14, 2026 at 3:29 PMWeek 10 | V. SokolovIT | promptChatGPT (personal) | API Keys / Creds | Blockv5 | —true positive | Chain |
| Aug 14, 2026 at 3:24 PMWeek 10 | B. MwangiFinance | pasteChatGPT (personal) | Account Numbers | Monitorv5 | — | Chain |
| Aug 14, 2026 at 3:23 PMWeek 10 | K. OseiCommercial Lending | uploadClaude.ai (personal) | Loan Files | Monitorv5 | — | Chain |
| Aug 14, 2026 at 3:15 PMWeek 10 | P. NakamuraRetail & Branch Ops | pasteChatGPT (personal) | Account Numbers, Member PII | Monitorv5 | — | Chain |
| Aug 14, 2026 at 3:12 PMWeek 10 | H. DelacroixCredit Administration | uploadPerplexity | Credit Memos, Member PII | Warnv5 | overridden | Chain |
| Aug 14, 2026 at 3:05 PMWeek 10 | M. RamaswamyCommercial Lending | promptChatGPT (personal) | Loan Files, Member PII | Redactv5 | — | Chain |
| Aug 14, 2026 at 2:54 PMWeek 10 | M. RamaswamyCommercial Lending | uploadClaude.ai (personal) | Loan Files, Member PII | Redactv5 | — | Chain |
| Aug 14, 2026 at 2:48 PMWeek 10 | A. BergströmCredit Administration | promptGemini Advanced | Member PII | Warnv5 | transformed | Chain |
| Aug 14, 2026 at 2:26 PMWeek 10 | A. BergströmCredit Administration | pasteChatGPT (personal) | Credit Memos, Member PII | Warnv5 | redirected | Chain |
| Aug 14, 2026 at 2:16 PMWeek 10 | K. OseiCommercial Lending | promptGemini Advanced | Credit Memos, Member PII | Redactv5 | — | Chain |
| Aug 14, 2026 at 2:14 PMWeek 10 | S. AdeyemiRetail & Branch Ops | promptChatGPT (personal) | Member PII, Account Numbers | Monitorv5 | —true positive | Chain |
| Aug 14, 2026 at 1:57 PMWeek 10 | T. BeaulieuCommercial Lending | promptChatGPT (personal) | Loan Files, Member PII | Redactv5 | —true positive | Chain |
| Aug 14, 2026 at 1:52 PMWeek 10 | R. OkaforCommercial Lending | promptChatGPT (personal) | Loan Files, Member PII | Redactv5 | — | Chain |
| Aug 14, 2026 at 1:42 PMWeek 10 | F. DuarteIT | promptClaude.ai (personal) | API Keys / Creds | Blockv5 | — | Chain |