{"block":{"chainId":42161,"hash":"0xe6125ebee621d2f8e188f05164b08c330d6d88d87f1eb1dd41ff9c1e5d104f80","number":"447736930","timestamp":1775001599},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x000000000000000000000000000000000000000000f7aadee5fd51e88b80b5f2","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":"0xd40626a7d8e0911b3f89fef924659dcc583090510135a4012d109fbe35397bc9","id":"rcpt_d40626a7d8e0911b3f89","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 447736930 --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\":\"0xe6125ebee621d2f8e188f05164b08c330d6d88d87f1eb1dd41ff9c1e5d104f80\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:10:15.600Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x163011c73c13a26b5fcfbb37bb99543538a354a3ea7bafdc21d0f7a91dc4292b"},"subject":{"label":"USDai totalSupply on Arbitrum One, 2026-03-31 UTC close","unit":"raw","value":"299411591496577872367236594"},"v":1}