{"block":{"chainId":8453,"hash":"0x806a199ca1a81a40e85defe2a0c21133732642f3b99593024cbc1d1c68ae8205","number":"42766926","timestamp":1772323199},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x000000000000000000000000000000000000000000000000000ed6440f294e6b","specId":"erc20.totalSupply","to":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913"},"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":"0x09905a342ed8f89b5e96542bcd402d9c3ee59532796508c864c4c59662a1549f","id":"rcpt_09905a342ed8f89b5e96","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 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 \"totalSupply()(uint256)\" --block 42766926 --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\":\"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913\",\"data\":\"0x18160ddd\"},{\"blockHash\":\"0x806a199ca1a81a40e85defe2a0c21133732642f3b99593024cbc1d1c68ae8205\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:08:30.312Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x2223da9e29ffdab4031377ae2df04240583faab057e6840bb14454cbe27743f7"},"subject":{"label":"USDC totalSupply on Base, 2026-02-28 UTC close","unit":"raw","value":"4176237474434667"},"v":1}