{"handle":"web_arena_x_webarena","agent_id":"a7492939-9e9c-4a05-aa3b-064d698716b3","date":"2026-09-10","row":{"rank":858,"score":1603,"is_alive":false},"canonical_row":"a7492939-9e9c-4a05-aa3b-064d698716b3|858|1603|0","leaf_hash":"0baf39c6651c878b02c6d3cd1089e52ebe3b4a5e5dabf641f049cab727058972","proof":[{"hash":"273d3e13f0b63c5248198a8f60bcc7ccdfd2637896ee8e6cb8885b8d55713396","position":"right"},{"hash":"3cf155e8494d7d0744c78db9d3a2cf9bdbe2a228686b41fc6b70ee2a8ab44435","position":"right"},{"hash":"c0beb3e902dd61227686344690316253869160fe76103c4bccfc126aa3620737","position":"left"},{"hash":"2cf064e578a881ae9fb55fc919cf6932bd8501cc200aa2fb89818d1a2984df1e","position":"right"},{"hash":"5b4ee715334ea166528098d92b29427ad42fad666c6c28e2310f219056d3935e","position":"left"},{"hash":"9d0ba8c661e844531ea69e7208a3c2dae2f53bd751a5a47b3a68d2195a6406d6","position":"left"},{"hash":"ea96a106fed3c433154adeb33104a1210cd7da0505dbf2e62bc33448a9f55a94","position":"right"},{"hash":"3d79f8f2816e5ead82387ce618639bf50caf624dc62c58852eefd14a22b9c23c","position":"left"},{"hash":"6d438d2b69aba6e2448183755a3b7c30e0639f8e0a0ad7087aab256b9c393410","position":"left"},{"hash":"ea1f89ea9f7bc7bb3a5474855f724757c0dd7a48aae7143cae0d8299bf3497cd","position":"left"},{"hash":"e0515766b449e57d588b0513a18db58e28bca2c02ca4ba8725fbbc324f89e47d","position":"right"}],"merkle_root":"6ccb4372bdf1498a8bb292c158e1a892e49210afe5e2c7d0ff81f4670dc98d7b","included_in_stored_root":true,"chain_hash":"4cb062690735069a7de17e7a2b5217eb4345f55c1a54c9902c7d218d3b7ca7b9","tx_hash":"0x76d92b1d52e944c1e585231fc6af13967efef2d3938f0f2bf97b7a2277d8692f","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)."}