{"block":{"chainId":10,"hash":"0x8b1e33fb00621e488fa4c1f0bc3012e5305f3192722f4d8ea1f5cefc090edf33","number":"148362211","timestamp":1772323199},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x0000000000000000000000000000000000000000000000000000ac532fb2526b","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":"0x5581d5ee8d6bc2abf64d89cd500b5683619ee893bbafa198f7d96211550ca45e","id":"rcpt_5581d5ee8d6bc2abf64d","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 148362211 --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\":\"0x8b1e33fb00621e488fa4c1f0bc3012e5305f3192722f4d8ea1f5cefc090edf33\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:23:26.437Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x3247390645cecfd9e5a64ee44fa0cc3b5e56e00b40c74062da901d3669d9856b"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2026-02-28 UTC close","unit":"raw","value":"189473282478699"},"v":1}