{"block":{"chainId":10,"hash":"0x60ca7d72e22a9481f5c38ad66b3db645dd3e530b5de014066f8c4606672551b2","number":"85261510","timestamp":1680307192},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x0000000000000000000000000000000000000000000000000000000007f644e0","specId":"erc20.totalSupply","to":"0x0b2c639c533813f4aa9d7837caf62653d097ff85"},"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":"0xbd0bceb1f1032383f1c2223df50925e70e651a68229e0e38ecee5e5bfa1a1e7c","id":"rcpt_bd0bceb1f1032383f1c2","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 0x0b2c639c533813f4aa9d7837caf62653d097ff85 \"totalSupply()(uint256)\" --block 85261510 --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\":\"0x0b2c639c533813f4aa9d7837caf62653d097ff85\",\"data\":\"0x18160ddd\"},{\"blockHash\":\"0x60ca7d72e22a9481f5c38ad66b3db645dd3e530b5de014066f8c4606672551b2\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:25:10.563Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x10c66f0c3841ede700e2f50c289f2b59864496150ffde7d8952c14759884ce98"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2023-03-31 UTC close","unit":"raw","value":"133580000"},"v":1}