{"block":{"chainId":10,"hash":"0xfa57f63d4ce78f2a955fa297fe47a3a1d8c797e7cf0639db7e9251e06ce6eaf6","number":"141839011","timestamp":1759276799},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x00000000000000000000000000000000000000000000000000002121cd7db34d","specId":"erc20.totalSupply","to":"0x7f5c764cbc14f9669b88837ca1490cca17c31607"},"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":"0xa8fc60ea797bffc264059cbae53a2a4168581f6afbaa037c4e7161fdfacd4c10","id":"rcpt_a8fc60ea797bffc26405","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 0x7f5c764cbc14f9669b88837ca1490cca17c31607 \"totalSupply()(uint256)\" --block 141839011 --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\":\"0x7f5c764cbc14f9669b88837ca1490cca17c31607\",\"data\":\"0x18160ddd\"},{\"blockHash\":\"0xfa57f63d4ce78f2a955fa297fe47a3a1d8c797e7cf0639db7e9251e06ce6eaf6\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:22:18.160Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x951cedad0a617aa44ba987e26d922d6449196c19622dbe5b7237af58135a2f97"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2025-09-30 UTC close","unit":"raw","value":"36429065204557"},"v":1}