{"block":{"chainId":10,"hash":"0xdf21bc8a087ef37ed08bea9fdfcac535d70e22c774c7c6bc985595cf12e550b1","number":"145813411","timestamp":1767225599},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x0000000000000000000000000000000000000000000000000000b0841ed47743","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":"0xf4880162534643d1c953937d82b69d69d051ba755f5ad3366041fa6e9a771e05","id":"rcpt_f4880162534643d1c953","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 145813411 --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\":\"0xdf21bc8a087ef37ed08bea9fdfcac535d70e22c774c7c6bc985595cf12e550b1\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:24:31.389Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x0507da1d522e39a24ea9c322543b21ebaacf15b810af2fc41ac9715e1ae238ac"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2025-12-31 UTC close","unit":"raw","value":"194081499412291"},"v":1}