{"block":{"chainId":42161,"hash":"0xe303f16943eef87776012f229f1b5bcf234aab71944f0980f706ce4179d2dc49","number":"427315178","timestamp":1769903999},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x000000000000000000000000000000000000000001a17207840f7eb2daa93393","specId":"erc20.totalSupply","to":"0x0a1a1a107e45b7ced86833863f482bc5f4ed82ef"},"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":"0x16d6d008699cb30053635c2cf4c0ebd5172a40b85366f44cc0114df7dbad9aa5","id":"rcpt_16d6d008699cb3005363","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 0x0a1a1a107e45b7ced86833863f482bc5f4ed82ef \"totalSupply()(uint256)\" --block 427315178 --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\":\"0x0a1a1a107e45b7ced86833863f482bc5f4ed82ef\",\"data\":\"0x18160ddd\"},{\"blockHash\":\"0xe303f16943eef87776012f229f1b5bcf234aab71944f0980f706ce4179d2dc49\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:10:40.038Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x17491f791c92a3e50f0d955811d60c900a9c3b81cf5a028d2624da9c65bb5d8e"},"subject":{"label":"USDai totalSupply on Arbitrum One, 2026-01-31 UTC close","unit":"raw","value":"504660555201519865668645779"},"v":1}