the leaf hashed, climbing its siblings to its peak; the peaks bagged right to left are the head (the pipe's verify_twig)
{
"leaf": {
"kind": "word",
"set": "shapes",
"id": "Rule",
"digest": "0xf608528eb41be8802f1818fbd044bca741365093ae693713ccf132da9ca5c02d"
},
"index": 1493,
"count": 3770,
"siblings": [
"0x1728d757f75a4178bc8142841c1507936213eb7974aaed63614a61420eaa8c43",
"0x0f682cdf9b244ea448b4ebbf1a1926835783c6051681426ea4aee3078a94fe5f",
"0xe644e8604e1b221dd7c4da591904175d22343d05e77d735e53f4b9be4b99f5ba",
"0x5e068d21ebe4e1bff280e438bc1ac91e56bf677ea6f5860d64834ecdb321dda3",
"0xbfcd462033ec01fe9e9783b3a6e2769ec8bf7fbe76408d7ab85d479a94888483",
"0x17c6d549a3f431236e2d9d40e09c8fcc4262646588f679941462e8678288f773",
"0xafd8b29abea85fd67a13c27d9e245e6962e36db0811acc809071e7465e8fad14",
"0x9dcac3101998dc0e6d6a4b79af3e079485e4099f5fb76ab9b70af0d969b8d3de",
"0x2832f54904bd8932a7042316753dec63a4a9a3c74e89ee3f3d9f4d71dcc2d2d3",
"0x50c55d913ded3afddcda971004be1942a68edc773d302a9ddb41924b45005f6b",
"0x8f0406575b803b992979ab8b8859baf18592027306190c47fa83f7f755209e34"
],
"peaks": [
"0xc83761bb6d9398aca86b43cc9d2ba075f4d0d0229d52c76165d8649114781cfb",
"0xdf12f1deab413755b97b950c29d62aaea4aff0495d1d38d358d0f664b8274f93",
"0xcb4078f42089ff5df42f5f57e5a895d0ce3f63418cb567f1af9479eb226963e3",
"0x8ce0d2ee48d3847487d4ac631e81d90046da48c5136febee9cd42913d1a2b18e",
"0xb364bdca5788ed04d4ebeab69ee13fc2785ed1a4371f353419f19805f2ef1542",
"0xae7f8fd798bb674d5e493dbbd0dfbe12db18376f9cd63ce90376452d081264ce",
"0x8f35bea020cd3ffe0de483d54d93102e8f989fd272fd818852c15576a555a337",
"0x5417080684080e0bccab321d07bc69d5548beaed2752a194916a083e7d4b53e8"
],
"peak_index": 0,
"head": "0x70ca62614037642bc3527162614e79da1573fcd4f55c853d07b5c9476311175f"
}