# PII Validation Record — polymarket-canary-tape

**Date:** 2026-07-22
**Method:** exhaustive full-database scan (read-only), not sampling.
**Scanner:** regex sweep for 40-hex wallet addresses (excluding 64-hex ids),
email patterns, and private-range IPs, over every text field in every table.

| Surface | Coverage | Result |
|---|---|---|
| `pm_events.payload_json` | all 27,919,423 rows | 0 wallets, 0 emails, 0 IPs |
| `pm_events.event_type` | full distinct enumeration (8 types) | market-channel only |
| `pm_events.subscription_id` | all 1,750 distinct | market/time-derived labels only |
| `pm_events.asset_id` | full length-distribution | 64-hex condition ids + long decimal token ids; no 40-hex |
| `markets` (all columns incl. `raw_json`) | all 23,750 rows | 4 distinct 40-hex values, all platform infrastructure (see below) |
| `cex_trades` | numeric columns + full distinct text sets | symbols only (BTC/ETH/SOL/XRP/DOGE-USDT) |
| `heartbeats`, `gaps`, `schema_version` | full | clean |

The 4 addresses in `markets.raw_json` are values Polymarket serves publicly
from its own Gamma API on every market object: `resolvedBy` (UMA CTF adapter
contracts, two versions), `submitted_by` (the platform market-creation
address, identical across thousands of markets), and one `assetAddress`
contract. They are protocol infrastructure, not user data, and are retained.

**Verdict: CLEAN for publication.** The Polymarket market WebSocket channel is
anonymous by design; this scan verifies that exhaustively for this tape.

## Addendum — additional tape files (2026-07-22)

Same exhaustive method applied to two further recorder DBs:

| File | Window | pm_events scanned | Result |
|---|---|---|---|
| `polymarket-recorder-tape-vantage-b-20260603-20260701.db.zst` | 2026-06-03 to 2026-07-01 (second vantage point, overlaps canary) | 33,300,844 / 33,300,844 | 0 wallets / 0 emails / 0 IPs in payloads; `markets.raw_json` contains only the same 2-3 platform-infrastructure addresses (UMA adapter, platform submitter) |
| `polymarket-recorder-tape-early-72h-20260430-20260503.db.zst` | 2026-04-30 to 2026-05-03 (early 72h snapshot, pre-canary) | 531,990 / 531,990 | 0 wallets / 0 emails / 0 IPs in payloads; `markets.raw_json` contains exactly 2 distinct addresses, both platform infrastructure |

**Verdict for all three files: CLEAN for publication.**