labelmeguess the Nansen label · on Nansen

← the game · for judges · no login, no key, no setup

Ten real wallets. Guess the Nansen label. The answer key is the label; the clues are Nansen's fields.

A card game on labelled ethereum wallets: PnL summary, top trades, balance profile and the counterparty label-class mix — all Nansen-computed — and the reveal is Nansen's own label group, sourced by construction. The default round is a recorded deck (0 credits, 0 crash surface); “Draw fresh” pulls one unseen labelled holder live and streams the five calls as they land.

The 30-second path

  1. Open https://labelme.edycu.dev/r/meridian1933. Ten cards from the recorded deck, the same ten for everyone. Guess with the chips (or keys 1–5); the reveal shows the class, the free-tier tag, the entity name where the 1-credit lookup found one, and a one-line tell written from the card's numbers.
  2. Press Draw fresh: one tgm/holders / smart-money/dex-trades row and four profiler calls stream in with credits and latency; the card appears; guess; the house rule's read is shown next to Nansen's answer. Click Provenance for every call.
  3. Finish the round: “You read wallets N/10”, per-class breakdown, the house rule's score on the same ten, a share link whose OG card carries the score and the seed.

Receipts

The deck62 cards, ethereum — 12 Smart Money · 16 exchange · 12 whale · 10 contract/pool · 12 regular — recorded live by scripts/seed.ts; every raw response committed under fixtures/cards/; fixtures/dropped.json lists the addresses dropped and why
Determinismnpm run verify replays all 62 cards offline — same clues, same tell, same cardHash — zero network, zero credits
Live draw, benchmarked10 draws: cold p50 2.1 s · p95 2.6 s · warm 1 ms · 12.2 credits / 5 calls per draw · 0 failed; the house rule read 7/10 fresh cards (out-of-sample) — docs/BENCH.md is the script’s output
The house rulea deterministic reader over the same four clues reads 50/62 of the deck (thresholds in docs/RULES.md, set on this deck — in-sample; the bench is out-of-sample)
Nansen endpointstgm/holders (label_type smart_money · exchange · public_figure · plain · label-excluded) · tgm/who-bought-sold (label-excluded) · smart-money/dex-trades · profiler/address/pnl-summary · profiler/address/pnl · profiler/address/current-balance · profiler/address/counterparties · profiler/address/transactions + transaction-with-token-transfer-lookup (entity names)
Tests111 tests (vitest) · 12,000 generated cases (fast-check: the reader is total, the tell is one line, the hash ignores time and the reader, a round is deterministic and URL-safe) · route boundary tests: garbage never reaches Nansen
Clean clone → first output11 s of machine time through verify and the tests (timed clean clone from GitHub, 2026-09-19; the steps are in README)

Reproduce

The deck (0 credits, no key) and the live path (13 credits):

git clone https://github.com/edycutjong/labelme && cd labelme && npm install
npm run labelme -- play --seed meridian1933 --answers   # the recording's ten cards with the answer key, 0 credits
export NANSEN_API_KEY=nsn_...                        # your key from https://app.nansen.ai/api
npm run labelme -- draw --explain                    # one unseen wallet live: five calls, credits, the reveal

CI / deterministic replay (not the product — a check that the engine has not drifted):

npm run verify                                       # 62/62 cards reproduced offline, no key, no network

Honest limitations

Links