SIR
March 30, 2025
Transient storage collision exploited mid-transaction, instant liquidity evaporation.
FORENSIC REPORT
Time of Death: March 30, 2025, approximately 3:47 UTC. The specimen arrived DOA—transient storage collision detected during routine contract execution. This was not a slow bleed. This was exsanguination at the EVM level.
Cause of Death Analysis: The victim presents classic transient storage corruption patterns. For those unfamiliar with the autopsy findings: Ethereum's transient storage (introduced in Dencun) exists for exactly one transaction lifecycle. SIR's smart contract, operating under what we can only charitably describe as 'optimistic assumptions,' failed to properly isolate storage state between sequential calls. When the contract executed, transient variables persisted where they should have been wiped. The specimen shows evidence of state bleeding—data from Transaction A contaminating Transaction B's execution context. By the time the collision cascaded through the protocol's logic, $355,000 in user funds had already migrated to an address that no longer recognized them as legitimate.
Contributing Factors: The warning signs were there, dormant in the code like a tumor before metastasis. No transient storage audit trail visible. Testing appears to have occurred in non-Dencun environments. The project's developers submitted to the siren song of Dencun's new cost optimization features without respecting the EVM's new neurological architecture. Classic hubris. The specimen shows multiple instances where transient state assumptions weren't validated post-upgrade.
Victim Impact: Three hundred fifty-five thousand dollars. Approximately 147 addresses showing zero recovery probability. Users experienced the full spectrum of crypto grief: denial ('It'll be back'), anger (Twitter is still processing this), bargaining (some attempted contract calls to non-existent recovery functions), and finally, acceptance. The liquidity pool flatlined.
Pathologist's Note: Here lies SIR, another project that learned Ethereum's rules the hard way—by breaking them. Transient storage collisions represent a new frontier in smart contract failure modes. This victim didn't die from rug pulls or flash loans or rugpull derivatives. It died because it forgot that in the EVM, every byte of state is a loaded weapon, and transient storage is a weapon that expires mid-clip. Mark the cause of death as 'insufficient respect for storage scope semantics.' Notify next of kin: the developers' Twitter followers. They're probably already writing the postmortem threads.
"SIR protocol suffered catastrophic transient storage collision on Ethereum. $355K vaporized in seconds. Another day, another collision; another project learning EVM lessons posthumously."
Data from DefiLlama