{"block":{"chainId":42161,"hash":"0xf428fa165f436490fb973bde0addddc5a1dcf82e8f4821cff699de5dbf6dc4be","number":"510496863","timestamp":1790812799},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x000000000000000000000000000000000000000000cc59bec487a279ec3ef89f","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":"0x3e2124195207fc331117869a0ca2c915cafb4b4bfa31fe77405788d30b144fd2","id":"rcpt_3e2124195207fc331117","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 510496863 --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\":\"0xf428fa165f436490fb973bde0addddc5a1dcf82e8f4821cff699de5dbf6dc4be\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:08:18.726Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x276bb2aa6ccf10e9c5e4486c03d93392803b89a076c5cd75f77946eb1e825f06"},"subject":{"label":"USDai totalSupply on Arbitrum One, 2026-09-30 UTC close","unit":"raw","value":"247044676861199952706992287"},"v":1}