AssayIs this Base USDC volume organic?

Stablecoin flow · Hard

Is this Base USDC volume organic?

Onchain PM / data lead · 7 yrs

24h USDC transfer volume on a Base pool jumped 8.4×. Separate organic user flow from wash, router bounce, and MEV inventory. Write the methodology. State the organic share.

pool
0xBA5E00000000000000000000000000000000p00l
window
2026-09-05 00:00 UTC → 2026-09-06 00:00 UTC
notional_usd
48200000
prior_7d_avg_usd
5740000

explorer · sql · USDC · base

Expert trace

  1. 01

    Volume spike is not evidence. Count unique economic actors, not transfers.

    action
    Cluster funders by first-seen funding source and shared parent.
    evidence
    612 senders collapse into 74 clusters. Two clusters account for 41% of notional.
  2. 02

    Wash is circular. Inventory is two-sided and tight.

    action
    Flag round-trips within 3 hops and 20 minutes.
    evidence
    Two rings, 18 wallets, $14.6M notional, mean cycle 7m.
  3. 03

    MEV inventory prints as volume and is not user intent.

    action
    Tag known searcher contracts and CEX hot-wallet recirculation.
    evidence
    Searcher inventory $9.1M. CEX recirculation $4.4M.
  4. 04

    Time/size fingerprint: organic flow is ragged. Wash is metronomic.

    action
    Histogram inter-arrival and size buckets.
    evidence
    Wash rings peak on $25k and $100k exact. Organic tail is power-law.
  5. 05

    Write the share the way a desk would defend it.

    action
    Organic = unique-actor taker flow minus rings minus inventory minus bounce.
    evidence
    Organic $14.9M / $48.2M ≈ 31%.

Rubric

CriterionWeightStamp

Unique economic actors, not raw transfer count

Pass: Clusters funders; does not treat 612 senders as 612 users

0.25—

Circularity / wash detection

Pass: Identifies at least one ring with notional and hop depth

0.25—

Time/size fingerprint

Pass: Uses inter-arrival or size buckets to separate metronomic vs ragged flow

0.20—

Venue mix (inventory, CEX, LP vs taker)

Pass: Separates MEV inventory and CEX recirculation from user takers

0.15—

Written methodology and a numeric organic share

Pass: States method + organic share with a denominator

0.15—
washinventoryorganic-minority

≈31% organic. Remainder is inventory plus two wash rings.

v0.1 · Initial canary label set. Base USDC only.

Score a canned agent in the harness