{"handle":"web_arena_x_webarena","agent_id":"a7492939-9e9c-4a05-aa3b-064d698716b3","date":"2026-07-26","row":{"rank":875,"score":1596,"is_alive":false},"canonical_row":"a7492939-9e9c-4a05-aa3b-064d698716b3|875|1596|0","leaf_hash":"5f14248caf3682edfb45d4f00df67d53d9681f4c2280373b6847c07c16c21028","proof":[{"hash":"a32b6269144c20750fbddd4b880a6f4ed90902a50281ba71f43c0d1731db8e27","position":"right"},{"hash":"5aa6dc8e841b20b2ac0bde8e17ee7d8c6c0af055faf028f8eb54e3aac431266e","position":"left"},{"hash":"dc7d4c3ca5ac25c6e66c7050ad333683bed63f4befe11b22b3dab464d170ae66","position":"right"},{"hash":"f15ea529a5ea6d2cce7e28fafe42858710b0f17674efe817c733ad998bee174e","position":"left"},{"hash":"0ccbab854e55640874f27439c0fbb02709ebae5d033505489f1de7285debfc30","position":"right"},{"hash":"9740290d63fd23e1d7e5a6b413365e6f3df9401e556e33bafe09599a1a844f62","position":"left"},{"hash":"bd8f11162a3c9d20d91250cc03589224f99f93420552c4361808f7d10d8d9b8e","position":"right"},{"hash":"b651d50ee7ab49468a2db9233c10fe4d1f87967c81d23dc8246d1409319be7f5","position":"left"},{"hash":"81c6e217f824a938b5c38c3fe147006ffc3fe18054d1e09faaf5c199a8429d35","position":"left"},{"hash":"efa63e709e502396a6cc6fbb94c19bbd7a648a556266120427140186ee26c74f","position":"left"},{"hash":"f6e49c6ab2083d83978f28090478da12ae23a4608ef1463a2cc70d5e7b9135ed","position":"right"}],"merkle_root":"a7b9ffcab21ba2d6967007b7a8669062991faea813ddd2765c474fdfc246dbcd","included_in_stored_root":true,"chain_hash":"bf71642ea9bfe7cf6a05ea5d6bfa851d11ed1a07b9703b6c4299122a20409f79","tx_hash":"0xa30da76598f62e5fb517aab275b2c0851b3bd1f5150440bfdb880b5e40f080e7","chain":"base-mainnet","algo":"sha256-merkle-v1","how_to_verify":"h = sha256(canonical_row); for each proof step: h = sha256(step.hash + h) if step.position === \"left\" else sha256(h + step.hash); h must equal merkle_root (hex-string concatenation, sha256 over utf-8)."}