{"block":{"chainId":10,"hash":"0xfd8be7d5e1e739fe2440df0f88a345131a37259b399de161fb5a8caeb7e9c3b3","number":"131384611","timestamp":1738367999},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x0000000000000000000000000000000000000000000000000000daaed4ac029d","specId":"erc20.totalSupply","to":"0x0b2c639c533813f4aa9d7837caf62653d097ff85"},"checks":[{"detail":"eth_call totalSupply() at the day's last block, by block number, on one archive RPC provider; responseHash is sha256 of the response text as landed","name":"rpc","status":"pass"},{"detail":"block hash and timestamp from eth_getBlockByNumber at that block number on the same provider","name":"block-header","status":"pass"}],"hash":"0xccac0877d167eec7c0e075e97fd2577954d38d3b4e8a86989940dec532ff7908","id":"rcpt_ccac0877d167eec7c0e0","kind":"eth_call","lineage":{"inputs":[],"transform":{"expression":"total_supply_raw = uint256(result); total_supply = total_supply_raw / 10^decimals","name":"erc20.totalSupply","version":"1"}},"proofLevel":1,"reproduce":{"cast":"cast call 0x0b2c639c533813f4aa9d7837caf62653d097ff85 \"totalSupply()(uint256)\" --block 131384611 --rpc-url $RPC_URL","curl":"curl -s -X POST \"$RPC_URL\" -H 'content-type: application/json' --data '{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"eth_call\",\"params\":[{\"to\":\"0x0b2c639c533813f4aa9d7837caf62653d097ff85\",\"data\":\"0x18160ddd\"},{\"blockHash\":\"0xfd8be7d5e1e739fe2440df0f88a345131a37259b399de161fb5a8caeb7e9c3b3\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:20:47.516Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0xb6fda9b573e7ad542bde48f302797c3c0958952deb748061b83f074397c914ea"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2025-01-31 UTC close","unit":"raw","value":"240444427207325"},"v":1}