A validator reward failure on Core DAO triggers exchange transfer blocks and leaves token issuance in question

Core DAO validator rewards exceeded the protocol’s intended levels for a small group of validators, the project said, creating an unresolved supply question for the CORE token as two exchanges restricted transfers.

Core DAO said it had identified the root cause and was working on mitigations. It said user assets were safe. It described the incident as limited to reward issuance and said network security and custody were unaffected. Core did not disclose the amount of excess CORE, the validators or reward rounds involved, or the technical cause. It promised a postmortem after the issue is contained.

The missing amount is central because Core DAO validator rewards normally include newly minted tokens. The disclosure leaves unresolved whether the anomaly accelerated rewards already scheduled for later distribution or added issuance outside the project’s planned path.

Coinbase opened its Core DAO incident at 04:41 UTC on Aug. 31, before Core’s 05:24 UTC public statement. At 17:38 UTC, the exchange’s status feed still listed the incident as investigating, with CORE sends and receives paused. Coinbase said buys, sells, conversions and fiat transactions were unaffected. Its public status page remained the venue’s official channel for further updates.

LBank separately suspended CORE deposits at 05:00 UTC, saying the action was due to the project’s requirements. Its notice did not describe a withdrawal or trading suspension and gave no restoration time. A translated version gives the equivalent time of 06:00 UTC+1 and says the English notice governs any discrepancy.

The official statements leave the relationship between the reward anomaly and the exchange actions unconfirmed. The restrictions also differ: Coinbase limited sends and receives, while LBank’s notice covered deposits only.

Core’s reward documentation says validator compensation combines newly minted CORE block rewards with transaction fees and is calculated at the end of each round. Its validator guide says 90% of rewards go to validators and their delegators, while 10% goes to the System Reward Contract.

The documentation places the anomaly inside the network’s regular issuance process, separate from the user-balance and custody systems Core said were unaffected. A numerical disclosure is still needed to measure how much of the scheduled node-mining allocation was brought forward or exceeded.

The project’s tokenomics describe a fixed supply of 2.1 billion CORE, including 839.9 million allocated to node mining over 81 years. The disclosure also leaves the transferability of affected rewards and the possibility of a clawback, burn or reduction in future emissions unresolved. For now, reward issuance exceeded the protocol’s intent and exchange access remains restricted, while the size and lasting supply impact remain unknown.

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