Case SL-0000 · classified · opened today
See who bought a new coin the second it launched.
Paste a new Solana coin's address, or pick one from today's trending list. We read its very first transactions and show whether the creator or insiders grabbed a big share before anyone else could, plus how fair its rules are.
Read straight from the Solana blockchain: the creation block, first-slot buyers, the creator's holdings and nine fairness checks. A coin's address (CA) is shown on its chart page. Evidence, not vibes, and never financial advice.
Uses the newest trending coin.
PROCEDURE How it works in 3 steps
- 1You giveA coin's address, or pick a trending new coin.
- 2We readThe coin's first transactions, straight from the blockchain.
- 3You getWho bought first, what the creator holds, a fairness score.
Checking is read-only: nothing is moved or charged, and no wallet is needed. Saving a report on the blockchain is optional and only happens if you approve it in your wallet. What do these words mean?
New coins to check
What this does: lists brand-new coins trending right now, plus coins your wallet holds. Press Audit on any of them.
Launchpad coins trending on Jupiter in the last hour and created within the past three days, plus any coins held by your connected wallet. Pick one to open a case. Top-holder share is Jupiter's own figure, printed as a second opinion beside ours.
| Coin | Pad | Age | Mcap | Top-10 hold | Open |
|---|
Connect a wallet to list the coins you hold, then audit any of them.
Check a coin above, or press Try an example. A full audit reads up to 10 pages of signatures and 25 transactions, four at a time.
Who bought in the very first block
What this does: shows who bought at the exact moment the coin was created, before the public could see it.
Every transaction that landed in the same slot as the one that created the mint, in block order. The creator's own buy is shown separately from anyone else's. On a fair launch the second list is empty.
- Creation slot
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- Time (UTC)
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- Launchpad
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- Creator
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- Creator buy in block
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- Others in block
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The block will be laid out here.
How a block is read
- A slot is a 400 ms window. The leader packs transactions into one block.
- Order is recorded. Every transaction has an index; the create comes first.
- Balances tell the story. Pre and post token balances show who received the new token.
- Same slot, same moment. A buy beside the create was prepared before anyone else could see the coin.
- The redaction lifts. Those wallets are named in Exhibit A.
Early buyers: how much they grabbed
What this does: shows what share of the coin the fastest buyers (snipers) took in the first seconds.
How much of the supply the earliest buyers took, slot by slot from creation. Slide the window. The chart only covers the transactions read so far; load more to extend it.
Open a case to chart its first slots.
How much the creator holds
What this does: compares what the coin's creator (the "dev") bought at launch with what they hold now.
What the creator took at launch against what that wallet holds now, read live. Suspect a second wallet? Put any address in the box and weigh its bag against the same supply.
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- Creator SOL
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- Jupiter's dev field
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- Coins this dev minted
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Weigh another wallet
Your connected wallet is checked automatically: if you bought in the first slots, Exhibit B marks you.
Fairness score score
What this does: nine yes/no checks, such as "can the creator print more coins?", added up to a score out of 100.
Nine terms, each read from the chain, each worth a published number of points. Untick a line if it does not apply to this kind of coin and the score is recomputed without it.
- Open a case to fill the checklist.
How the audit is done
- §1
Walk back
getSignaturesForAddresson the mint, 1,000 at a time, until the oldest page. Ten pages at most; busy coins past that are reported as "creation out of reach". - §2
Open the first 25
The earliest signatures are fetched with
getTransaction, four at a time, and sorted by slot and in-block index. - §3
Diff balances
For each transaction, post minus pre token balance per owner. The owner left holding the largest balance after the create is treated as the curve or pool and excluded.
- §4
Read terms
Mint account (authorities, Token-2022 extensions), supply, the twenty largest accounts and their owners.
- §5
Score
Points per term, printed beside each line. The report is canonical JSON; its SHA-256 can be filed with one Memo.
Words used on this page
- Coin / token
- A digital asset on Solana. Anyone can create one in a minute on a launchpad.
- CA / mint address
- The coin's unique ID on Solana. Paste it here to check the coin.
- Creator / dev
- The wallet that launched the coin.
- Block / slot
- Solana records transactions in blocks, one per slot, about every 0.4 seconds. The first block is the moment the coin was born.
- Sniper
- A bot or insider that buys within seconds of launch, often to sell to later buyers.
- Bonding curve
- The launchpad's built-in pool that sells the coin at a rising price until it "graduates" to a normal exchange.
- Supply
- The total number of coins that exist. Shares on this page are a percentage of it.
- Mint / freeze authority
- Powers to create more coins, or to freeze holders' coins. A fair coin has both switched off.
- Token-2022
- Solana's newer token program. Some of its extras, like transfer fees, can be abused.
- Signature
- The unique ID of one transaction.
- Memo
- A short public note written to the blockchain. It moves no money.
- Wallet
- An app such as Phantom that holds your Solana account. Not needed to check a coin.
Questions for the file
What is this, in one sentence?
A free checker that shows who bought a new Solana coin in its first seconds, how much the creator kept, and how fair the coin's rules are.
Is it safe? Does it touch my money?
Checking a coin is read-only and needs no wallet. We never ask for a seed phrase or password and never move tokens or SOL. The one optional transaction is a public memo that saves a report's fingerprint; your wallet shows it first, it costs only the network fee (a tiny fraction of a cent), and nothing happens unless you approve.
Does a same-block buy prove insider trading?
No. It proves the buy was prepared before the coin was publicly visible, which usually means the creator or someone they told. Bots that watch the creator's wallet can also do it. Slotsleuth shows the evidence; it does not accuse anyone.
Why can a case say "creation out of reach"?
Very busy coins have hundreds of thousands of signatures. Walking back past ten pages would hammer the shared RPC, so we stop and say so instead of guessing.
Is the score a safety rating?
No. It is a count of fair terms, each read from the chain. A coin can score well and still go to zero. Nothing here is financial advice.
What does "File case on mainnet" do?
It asks your wallet to sign one SPL Memo instruction containing the mint and the SHA-256 of the report. It costs the network fee and moves no funds.
Why do my results differ from Jupiter's figures?
Different method. Jupiter clusters wallets over a coin's whole life; we look only at the first transactions by slot. Both are shown so you can compare.