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Transaction

A signed instruction, broadcast to the network and recorded in a block, that changes the state of the ledger, typically by moving value or calling a smart contract. A single transaction may involve several senders, recipients and assets, and may trigger further internal transactions.

Essays

  • The Strings Stay Public (Why Tracing Is Not Enough)

    “Every edge is one on-chain fact with its transaction, and the same input returns the same tree.”

    · Methods · 5 min read

  • A Finding Stands Without You

    “Nobody wrote a transaction to be read, which is why it cannot be phrased, spun or softened, and why I trust it more than any document a party hands me.”

    · Methods · 7 min read

  • The Magic of Flash Loans (Part 2): The Next Octave

    “Pending transactions waited in a public waiting room, the mempool, where anyone could watch them before they were confirmed.”

    · Systems · 8 min read

  • The Magic of Flash Loans (Part 1): Capital Was Never the Constraint

    “A loan with no collateral, no credit check and no paperwork, where a wallet holding nothing at all can borrow millions for the length of a single transaction.”

    · Systems · 9 min read

  • Two Sweeps Pointed at the Same Address

    “The execution layer is the one everybody sees, where transactions are sent and balances move.”

    · Investigations · 7 min read

  • The Desk Opens on Monday

    “They come back wanting the path expressed differently: the bridge hops decoded in a more familiar way, or the share of each transaction attributable to fraudster-controlled funds calculated according to a methodology they recognise.”

    · Methods · 7 min read

  • Achilles Catches the Tortoise Where It Has to Stop

    “Every action is discrete: you pull transactions, map a cluster, document a finding.”

    · Methods · 5 min read

  • A Scam Made to Measure

    “He was lured by a fake airdrop, a distribution of governance tokens to active users in an ecosystem, and signed a single drainer transaction: a malicious request that, once authorized, empties the wallet.”

    · Victims · 5 min read

  • What a USDT Recovery Actually Looks Like

    “When funds are removed through the special burn function, some analytics platforms (Arkham among them) may not register the balance change from that transaction type, so an address that has actually been emptied can still display a full balance.”

    · Investigations · 5 min read

  • Welcome to Constraints

    “Every transaction requires authorization and fees.”

    · Methods · 3 min read

  • Wallet Balances

    · Methods · 3 min read

  • Inside Inferno Drainer

    “When a victim approves the malicious transaction, their crypto doesn't go straight to the thief.”

    · Investigations · 3 min read