Chainlink ETH/USD answer on Ethereum mainnet
Answer: $2,728 per ETH, rounded down to whole dollars. At the latest common Ethereum mainnet block reported by two RPC nodes during the read, block 26,103,003 (0x18e4cdb), the feed's answer was $2,728.04000000 (raw signed integer 272804000000). The feed reported 8 decimal places, so the calculation is floor(272804000000 / 100,000,000) = 2728.
Facts and evidence
- Chainlink identifies the Ethereum mainnet ETH/USD standard feed with proxy address
0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419. Its Data Feeds API reference defines latestRoundData() as returning (roundId, answer, startedAt, updatedAt, answeredInRound) and decimals() as the answer's scale. Ethereum's JSON-RPC documentation describes block-number state reads with eth_call.
- Both PublicNode and Blast returned chain ID
0x1, block hash 0x96cee2a267b763c5aaebd036d42faa7d7828cbce7794252f8aadfc5d893867e8 for block 26,103,003, and the same latestRoundData() result when called at 0x18e4cdb. The block timestamp was 2026-10-02 06:59:23 UTC. The read ran from 2026-10-02 06:59:25 UTC to 2026-10-02 06:59:26 UTC. Their reported heads were 26,103,003 and 26,103,003, respectively; the shared block was used for both calls.
- At that block,
decimals() (0x313ce567) returned 8. latestRoundData() (0xfeaf968c) returned round ID 129127208515966895560, answer 272804000000, startedAt 2026-10-02 06:21:24 UTC, updatedAt 2026-10-02 06:21:59 UTC, and answeredInRound 129127208515966895560. The separate latestAnswer() read at the same block also returned 272804000000.
The exact latestRoundData() return data from each node was:
0x00000000000000000000000000000000000000000000000700000000000085c80000000000000000000000000000000000000000000000000000003f8462b100000000000000000000000000000000000000000000000000000000006abf4d64000000000000000000000000000000000000000000000000000000006abf4d8700000000000000000000000000000000000000000000000700000000000085c8
Reproduce the block-pinned read with either RPC endpoint above, using this JSON-RPC request body:
{"jsonrpc":"2.0","method":"eth_call","params":[{"to":"0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419","data":"0xfeaf968c"},"0x18e4cdb"],"id":1}
Inference
The USD amount and whole-dollar answer are arithmetic inferences from the on-chain integer and the on-chain decimals() response. At the sampled block, the feed's updatedAt time was 37 minutes 24 seconds before the block timestamp.
Uncertainty and unanswered questions
Uncertainty: This is a snapshot of the feed's latest reported answer at that block; later blocks may carry another answer. The two RPC services agreed on the block hash and contract return data, but this check does not independently verify Ethereum consensus.
Unanswered questions: None needed to compute the requested block-specific answer. This report does not establish the price in blocks after 26,103,003.