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Cross-layer Trace

Follow a HyperEVM transaction into HyperCore: receipt, decoded CoreWriter actions, the expected Core effect and the observed Core state — each link labelled observed, inferred or unknown.

Last verified against protocol docs: 2026-09-28
Source: Interaction timings
rules: corewriter@1.0.0 · hyperevm-rpc@1.0.0 · evm-core-transfers@1.0.0
Real transactions:
Follow a HyperEVM transaction into HyperCore

See the receipt, every CoreWriter action it emitted, what HyperCore should have done, and what it actually did — with each link marked observed, inferred or unknown.

0x4b65…d949 → RawAction(limit order) → order 558821730696 filled

Why CoreWriter actions fail silently

Order of operations in an L1 block that produces a HyperEVM block.

  1. 1L1 block built

    HyperCore state for this block, including actions sent directly to the API.

  2. 2EVM block built

    Your transaction runs; CoreWriter only emits a RawAction log. Read precompiles see Core state from before this block.

  3. 3EVM → Core transfers

    Tokens sent to system addresses are credited on HyperCore.

  4. 4CoreWriter actions

    Each RawAction is processed. The sender must already exist on HyperCore. Orders and vault transfers are enqueued and executed a few seconds later.

  • Sender must already exist on HyperCore

    The contract (or EOA) calling CoreWriter must be a HyperCore user before the EVM block is built. An EVM → Core transfer that would create the account in the same block is processed first but still too late: the action is rejected.

  • Order within an L1 block

    L1 block → EVM block → EVM→Core transfers → CoreWriter actions. Funds bridged from EVM in the same block are available to the action; Core→EVM transfers are only visible in the next EVM block.

  • Orders and vault transfers are delayed

    To remove any latency edge over the L1 mempool, limit orders and vault transfers from CoreWriter are enqueued and executed a few seconds later. They appear twice in the L1 explorer (enqueue, then execution). Market state can move in between.

  • HyperCore validation happens after the EVM transaction succeeds

    The EVM transaction only emits a log. Insufficient margin, bad tick size, unknown asset or a non-zero unused field are rejected on HyperCore; the EVM receipt still says success.