Demo mode: the five synthetic test vectors from /methodology, not real launches. Leave demo

Who bought before you could?

Every launch opened at slot 0. See which buyers were linked to the creator, which weren't, and what every dev did before. Every link proven on chain.

Today· 5 launches· 20.0% clean· 60.0% linked slot-0 buys· updated 3002607s ago

Live board

Slot —

Launches today

5

+5 last hour

Clean rate

20.0%

7-day average after the first full day

Supply bought by linked wallets

12.7%

avg in slot 0 per launch with linked buys · 3 launches

Launches per hour

0351518210003060912
Launches per hour
periodlaunchescleanlinked buyssniped
2026-09-21 14:00–15:00 UTC5132
cleanlinked buyssnipedavg clean

UTC hours.

Inspect a launch

Mint…1111 · ago

Vector E
LINKED BUYSSNIPED
Creator0.5%
Linked0%
Cluster9.0%
Unlinked12.5%
View proofs →

How it works

Three steps, every launch

01

Read the create block

The block of the create transaction and the two after it, decoded from pump.fun's own trade events: every buy, every failed attempt, in block order.

02

Trace who funded every buyer

SOL sent between each buyer and the creator, shared funders, and tokens passed back within 24 hours. Exchange hot wallets are never a link.

03

Label the launch and the dev, with proofs

Clean, linked buys, sniped, dev-heavy or quiet, each with its reason and the transactions behind it, then the dev's record across every launch.

Live feed

New launches, as they are read

One at a time, so it stays readable. Market cap is read one hour after launch.

timetokenlabelsslot 0linkedunlinkeddev initialproofs
Vector E VECE
LINKED BUYSSNIPED
9.0% 12.5% 0.5% proofs →
Vector D VECD
LINKED BUYS
15.0% 0% 3.0% proofs →
Vector C VECC
LINKED BUYS
14.2% 1.0% 2.0% proofs →
Vector B VECB
CLEANSNIPED
0% 11.3% 1.5% proofs →
Vector A VECA
DEV-HEAVYQUIET
0% 0% 8.0% proofs →

All launches →

Cleanest devs this week

All devs →

At least 3 launches in 7 days, every one CLEAN, ranked by launches still trading after 24 h.

No dev in the test vectors qualifies.

Biggest linked buys today

All →

Share of supply bought in slot 0 by wallets linked to the creator or funded together.

  1. 01Vector D15.0%

    5 wallets linked to the creator bought 15.0% of supply in slot 0

  2. 02Vector C14.2%

    3 wallets funded by the creator within 2 h before launch bought 14.2% of supply in slot 0

  3. 03Vector E9.0%

    4 slot-0 buyers funded by the same wallet bought 9.0% of supply in slot 0

The rules we use

Methodology →
  • CreatorThe creator wallet; its buy inside the create transaction is the dev initial buy.
  • LinkedOne concrete on-chain link to the creator, shown with the transaction that proves it.
  • ClusterNot linked, but three or more slot-0 buyers funded by the same non-exchange wallet.
  • UnlinkedEveryone else in slot 0, typically snipers.

Builders

Query any launch from your agent

A remote MCP server with four read-only tools: check a launch, a dev's record, the day's numbers, recent launches. Or the REST API, 60 requests a minute, no key.

API & MCP docs →
claude mcp add --transport http block-zero https://blockzero.site/mcp

Questions

What is slot 0?

The slot (about 400 ms of Solana) that holds the transaction creating the coin. Buys in the same slot happen before almost anyone could see the coin exist. Block Zero reads that block, and the two after it, for every pump.fun launch.

What does “linked” mean?

A concrete on-chain link between a buyer and the creator, shown with the transaction that proves it: SOL sent between them in the week before launch, funding from the same wallet that funded the creator (exchange wallets excluded), or tokens sent to the creator or a linked wallet within 24 hours.

Can a record be wrong?

Yes, within stated limits. Funding older than 7 days, trails through exchanges, and very busy wallets beyond the read cap are not seen; a partial record says what could not be read. The method and every limit are on the methodology page.

How do I dispute a record?

Every launch and dev page has a “Dispute this record” link. A person reads every dispute; a record found wrong is corrected or annotated, with the reason logged.

Is this advice?

No. It is a record of what happened on chain: who bought in the first slot, how they were funded, and what they did in the first day.

Which launches are covered?

Every pump.fun create since the indexer started, found from chain data (a WebSocket plus a gap-free reconciler), and older launches of any dev someone looks up. Measured coverage is published on the methodology page.