{"block":{"chainId":1,"hash":"0x0b6c2373db136669e187029cb13c2893a69d9e5d6bcc97044d38e83123cf5a76","number":"23479243","timestamp":1759276799},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x0000000000000000000000000000000000000000000000000000005a8315a8a7","specId":"erc20.totalSupply","to":"0x41f7b8b9b897276b7aae926a9016935280b44e97"},"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":"0x04c23b0d93ad471974a916d7392812dbae2583d288e118dd842031ad6b60d2af","id":"rcpt_04c23b0d93ad471974a9","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 0x41f7b8b9b897276b7aae926a9016935280b44e97 \"totalSupply()(uint256)\" --block 23479243 --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\":\"0x41f7b8b9b897276b7aae926a9016935280b44e97\",\"data\":\"0x18160ddd\"},{\"blockHash\":\"0x0b6c2373db136669e187029cb13c2893a69d9e5d6bcc97044d38e83123cf5a76\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-28T21:57:19.242Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x7e837ce59a3717fd99afba8de2f23ad320f11a9a4ad38c14eaf5e23bdd30c8b3"},"subject":{"label":"USDC totalSupply on Ethereum, 2025-09-30 UTC close","unit":"raw","value":"388746291367"},"v":1}