{
  "about": "S4RCIV signed observation-log checkpoints (C2SP signed-note). Pull and verify with the published key at https://s4rciv.com/keys; S4RCIV never pushes.",
  "checkpoints": [
    {
      "throughSeq": 2257,
      "treeSize": 2257,
      "rootHash": "1ce37c2fd534c15689e7c5e6a104ada1688356a233b337657e16342c0368db26",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-27T12:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2257\nHON8L9U0wVaJ58XmoQStoWiDVqIzszdlfhY0LANo2yY=\n\n— s4rciv-checkpoint-2026 tBLrwd+AaFuOSCNJ3S7fPTbmrnEc8TKA1dQWuAELC6xctuVM3zwbM7SwPypaw8YXX4QI7TLUEdYsbxgdPQ6hJAFdHww=\n"
    },
    {
      "throughSeq": 2255,
      "treeSize": 2255,
      "rootHash": "f120ffdb24f51d0ab607e4718ad121da5edbe6c007e96ad5ad4d06a04a1d3112",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-27T08:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2255\n8SD/2yT1HQq2B+RxitEh2l7b5sAH6WrVrU0GoEodMRI=\n\n— s4rciv-checkpoint-2026 tBLrwUO/RNnBEL/s/XUR89QCHrAodI6DQpQ/TGHpcx9ie1ojTc1b5/V64h1puQHIh0BqvBMcVd60+gIfzNGZwKalyA4=\n"
    },
    {
      "throughSeq": 2253,
      "treeSize": 2253,
      "rootHash": "a741b80d66201fc4614bac56ebbd8b17b0c6e3d03c88a39f1b8742cda10dfe07",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-26T15:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2253\np0G4DWYgH8RhS6xW672LF7DG49A8iKOfG4dCzaEN/gc=\n\n— s4rciv-checkpoint-2026 tBLrwSHf6Kn5ZKfCom+kK6JzOT6c7vMBIu/dr+SsxMnxgsuQoPe7QJmMM9msIhTDITlzQXQgfjL6+xC8mPUxQr753QI=\n"
    },
    {
      "throughSeq": 2252,
      "treeSize": 2252,
      "rootHash": "dc6d46a99509607ebcb8d1da5852ea8c17734d2bd3addd0d423de27e3b488b97",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-26T08:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2252\n3G1GqZUJYH68uNHaWFLqjBdzTSvTrd0NQj3ifjtIi5c=\n\n— s4rciv-checkpoint-2026 tBLrwVeWSi9q3T68K2lxieyi9hnNQPGGrWm11AKgGfm1tX/bHyq3XxqMbdElY0DEmug8KpDNpS5AuxBS/Kj7jWV5OQY=\n"
    },
    {
      "throughSeq": 2246,
      "treeSize": 2246,
      "rootHash": "b8f983c1da34d660d161c4386414efe3fe83e52d34e1b520f72526b8629a426f",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-25T15:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2246\nuPmDwdo01mDRYcQ4ZBTv4/6D5S004bUg9yUmuGKaQm8=\n\n— s4rciv-checkpoint-2026 tBLrwXLy7yo1oHNjhnTOACmECkn3r0MHAhUAy7BZxpuLoio0LPC8zF8Y45Zks3YxS+sIIjthSLcPn41LZUspDvhqbQM=\n"
    },
    {
      "throughSeq": 2245,
      "treeSize": 2245,
      "rootHash": "c4d44824f9d38828048270708b3ba8f22ffce5c2936d13f6666a931764e50978",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-24T20:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2245\nxNRIJPnTiCgEgnBwizuo8i/85cKTbRP2ZmqTF2TlCXg=\n\n— s4rciv-checkpoint-2026 tBLrwV5rh7pMCk55TNT9kLrUvlNuY1vSA/epXwveSHuRLEpCsY3FojxlUj35TQvc3q1HH86TmlpjQsdaV4cOx8tzdAY=\n"
    },
    {
      "throughSeq": 2244,
      "treeSize": 2244,
      "rootHash": "57063958f54594e642583b9193597db74b5d47edbe029a986102e9cd50c1b82e",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-24T15:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2244\nVwY5WPVFlOZCWDuRk1l9t0tdR+2+ApqYYQLpzVDBuC4=\n\n— s4rciv-checkpoint-2026 tBLrwf4+zIkAaaRFN48h6NhwOwHaZ1LgS6x4HpG8D2TOfPTv8lyjdtbb+GimzcHAE7QUN7oJxBTKEeqhEC6iGZpMbwk=\n"
    },
    {
      "throughSeq": 2243,
      "treeSize": 2243,
      "rootHash": "a580bc6f7c4a63e6c213f9b09d5766381ecfcf62124ab77b846f002fd73e9526",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-24T12:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2243\npYC8b3xKY+bCE/mwnVdmOB7Pz2ISSrd7hG8AL9c+lSY=\n\n— s4rciv-checkpoint-2026 tBLrwa+OLTAC3FGlLu2SZbfZA7WaTBA1/Kn0JY+/Ak8edL1+QCCydCkoNx3Yk6MTbij9bXAuNAEAbPyO73mSFClAsww=\n"
    },
    {
      "throughSeq": 2241,
      "treeSize": 2241,
      "rootHash": "8ce1e332c744c1a2e43bf8f6b496a5b20679b2ba374e1c4350b9ec5052e362f7",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-24T11:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2241\njOHjMsdEwaLkO/j2tJalsgZ5sro3ThxDULnsUFLjYvc=\n\n— s4rciv-checkpoint-2026 tBLrwdKWBs1faq1E6Hn83sztvQ5PMGuEUm40D5AnfhPkuBnLzW4v+g7Y0fd+iFyQChsB0031HCkTqMi5lXD7cA1cpg0=\n"
    },
    {
      "throughSeq": 2240,
      "treeSize": 2240,
      "rootHash": "6a1a144ed9fbabfb543a08f15e36660afa817f08cc1d0a24a895417517f9ae22",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-23T15:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2240\nahoUTtn7q/tUOgjxXjZmCvqBfwjMHQokqJVBdRf5riI=\n\n— s4rciv-checkpoint-2026 tBLrwWv/tllg79h4naekEcOLQVmiurrQzjaHVSRmThvHiu7OgXd+J56wkcGIQAw9sPUlQXjSSHU/svItGC+lDB+Osg4=\n"
    },
    {
      "throughSeq": 2238,
      "treeSize": 2238,
      "rootHash": "951cf83123bca3e00f0984245d70ecf71eae03be671db081459ec5726daa6a63",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-23T14:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2238\nlRz4MSO8o+APCYQkXXDs9x6uA75nHbCBRZ7Fcm2qamM=\n\n— s4rciv-checkpoint-2026 tBLrwZuHbt17dUbb0B//BU96uwO6M/DGjHN/uLfwrXRvi+m/oDppMlSrUk56rBSaIFpfYzAmOyWebpIgTvDNngVOOgM=\n"
    },
    {
      "throughSeq": 2237,
      "treeSize": 2237,
      "rootHash": "207ee63f41e321a85bacdf8c4d1fe7da26fc00f0193f0694967fcc6760dfe673",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-23T06:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2237\nIH7mP0HjIahbrN+MTR/n2ib8APAZPwaUln/MZ2Df5nM=\n\n— s4rciv-checkpoint-2026 tBLrwcpRDYIq4U5k43c3S28gycHty1uZNVmUNPT1u7wq/1r39C4uYrjXG/mU+GQhiAQgKgHYd83ODncbkBsUBU6O3QY=\n"
    },
    {
      "throughSeq": 2236,
      "treeSize": 2236,
      "rootHash": "d1437d0e1034c2b06bff02d663aee04d8ac4e709dabce1e31ef89248bccb32df",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-22T14:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2236\n0UN9DhA0wrBr/wLWY67gTYrE5wnavOHjHviSSLzLMt8=\n\n— s4rciv-checkpoint-2026 tBLrwRpSgEtlaXKjc9HETAkXHeFmM2T1fZYdHklqMSrFqwybvhn4Vmx8iqLtTPdMsLejSfUCtwjKUU+8nXFllI+NhQs=\n"
    },
    {
      "throughSeq": 2235,
      "treeSize": 2235,
      "rootHash": "c5308029e0e866e9a9d0ac00911f1c81cd703a4b123659e58e09ad4422cb2b17",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-22T10:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2235\nxTCAKeDoZump0KwAkR8cgc1wOksSNlnljgmtRCLLKxc=\n\n— s4rciv-checkpoint-2026 tBLrwW+LAQ+kFQlnbRRJ4Mhy8OnSQHvKx0NhLi9Z3xYeC9HGcse2hCG0RQMnA6zV2C53Hf/lJIaeRjZqVqLiz5VHPQo=\n"
    },
    {
      "throughSeq": 2234,
      "treeSize": 2234,
      "rootHash": "c5bba80e4a15fed2e3220b2065de17a1e36a7ce54558e126120620f85cdc2ef6",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-22T05:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2234\nxbuoDkoV/tLjIgsgZd4XoeNqfOVFWOEmEgYg+FzcLvY=\n\n— s4rciv-checkpoint-2026 tBLrwRF7sVZpRGfeHLv1/Z5o9yrFRtYmElmmOZVnrRxXtc0dosy71twqBYKciLYK4CVZ1pxS9r6YNxhqWiELMFFpJQI=\n"
    },
    {
      "throughSeq": 2224,
      "treeSize": 2224,
      "rootHash": "060541bd18f22e9288ac4d2482aa847f4e54eba775a808f6246ab20c8a8052fe",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-21T14:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2224\nBgVBvRjyLpKIrE0kgqqEf05U66d1qAj2JGqyDIqAUv4=\n\n— s4rciv-checkpoint-2026 tBLrwQwaVCt6QYeWjxA+VEx/o7otsULGRnXEWHYi/Vf1aNPW6EZ6zwP2FRYsZq2Imxikj9x8cH9t6AZ3Ur3J6iSmzAY=\n"
    },
    {
      "throughSeq": 2223,
      "treeSize": 2223,
      "rootHash": "d5ba64bbd8b5095095e5a9c984010461905072820a1c95cff1569a7725bd0f98",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-21T12:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2223\n1bpku9i1CVCV5anJhAEEYZBQcoIKHJXP8VaadyW9D5g=\n\n— s4rciv-checkpoint-2026 tBLrwXnIIRcVNN+EQz/cG2B7KQe+LxbtTmXz2R4/vdCkFQCkmk+yUzg72nFzETOEyLITb12nvVjku+hRWVzLyjHhRwI=\n"
    },
    {
      "throughSeq": 2222,
      "treeSize": 2222,
      "rootHash": "04c846ad80ade284cf14af2a9e8430c783efdcc52b46e19dd46f87d7411e1720",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-21T06:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2222\nBMhGrYCt4oTPFK8qnoQwx4Pv3MUrRuGd1G+H10EeFyA=\n\n— s4rciv-checkpoint-2026 tBLrwfbEd46rtphvtfcBDcW1AX2HTlTWiYYgCvX3+FvFhnjr9yO3szqORUCMXu3FYiOz39jNTvBC6NN823oShSYNZQA=\n"
    },
    {
      "throughSeq": 2221,
      "treeSize": 2221,
      "rootHash": "2650c00df67124b0b72a312f8dae7a09204d0a483c7f3773dc3b6b02b07f7be2",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-20T14:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2221\nJlDADfZxJLC3KjEvja56CSBNCkg8fzdz3DtrArB/e+I=\n\n— s4rciv-checkpoint-2026 tBLrwbBwsMtumnyJ1KQqjsGn/koLISy3O0lgTGJjH/T1fCnEWQeBH8md0u7Y33EK4b4EHgj60PekqHHCLBAchjYJtwo=\n"
    },
    {
      "throughSeq": 2220,
      "treeSize": 2220,
      "rootHash": "de84c1abbb6e3bd6061eef0452a843feb4af26bfe942ad5ae19ec1fc63fe2f45",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-20T13:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2220\n3oTBq7tuO9YGHu8EUqhD/rSvJr/pQq1a4Z7B/GP+L0U=\n\n— s4rciv-checkpoint-2026 tBLrwZf+TJFWCcGNWn0Vv8VMjMP5Xyg58jb97kIPILcPDT45GpTPvgjGVtOTg6gizZaad2EgjMowMMEySO3iKVV4SAU=\n"
    },
    {
      "throughSeq": 2219,
      "treeSize": 2219,
      "rootHash": "b4c59ff9451b9f5b3657c3c7d0fab929ef6e718ac74db55383f3fcab2bb7b2eb",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-20T12:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2219\ntMWf+UUbn1s2V8PH0Pq5Ke9ucYrHTbVTg/P8qyu3sus=\n\n— s4rciv-checkpoint-2026 tBLrweJD0sdJpP2pArUOl5xfee1uKyUVlnDcXDUj4D8JmHS7wl4srhbKUOTFRp45tTDrk5iaZJlbuP3eempow7YJKQQ=\n"
    },
    {
      "throughSeq": 2217,
      "treeSize": 2217,
      "rootHash": "f63a0b4d47072425da181fc119dc81a245a1c53af4c715b66b33e46680326e9f",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-20T06:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2217\n9joLTUcHJCXaGB/BGdyBokWhxTr0xxW2azPkZoAybp8=\n\n— s4rciv-checkpoint-2026 tBLrwfG0HsT/+RY4aYxzpfjitinzh/YAtUFa4fTC7N2YCmV3X8I34kexINzUcTJqnonhpxc9RcSNJOOVViFakPJq5Qo=\n"
    },
    {
      "throughSeq": 2216,
      "treeSize": 2216,
      "rootHash": "a497a707115e5845d971bf1760e9b659a5921eb59b870f4748252431bb4ff074",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-19T23:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2216\npJenBxFeWEXZcb8XYOm2WaWSHrWbhw9HSCUkMbtP8HQ=\n\n— s4rciv-checkpoint-2026 tBLrwdjWIlxejaRWifWzLKU48WxmKnfizxYpO8PN2BffgqXRV31rObJl4WIaSFNV/3wDq0qj0xh/J9weHZmNFseouQY=\n"
    },
    {
      "throughSeq": 2194,
      "treeSize": 2194,
      "rootHash": "e137142192329ebd1ae263cdad081d70b5000060a753d958f1041f657c53ca7d",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-19T17:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2194\n4TcUIZIynr0a4mPNrQgdcLUAAGCnU9lY8QQfZXxTyn0=\n\n— s4rciv-checkpoint-2026 tBLrwcErH87TWIm2X1myJuHzLj3nj3Mb5gOqkygh3ZOhnX0wwJ5/wYaWFrOrJfkG6sZA+6O7DQPPgT8GY4V6MKDKqw4=\n"
    },
    {
      "throughSeq": 2177,
      "treeSize": 2177,
      "rootHash": "c690e6398bb56a96831448aa2ba66b282b975e85ad142452e4bc5b88c35e822c",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-19T13:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2177\nxpDmOYu1apaDFEiqK6ZrKCuXXoWtFCRS5LxbiMNegiw=\n\n— s4rciv-checkpoint-2026 tBLrwc2hMkE741pWQWfl8q1I2aKLgg3upazU9D2ip3sMXbokgH0RWLmkHDCwJNFQQd0E3rCDKbpoY8DMKgqWwGXaaQY=\n"
    },
    {
      "throughSeq": 2176,
      "treeSize": 2176,
      "rootHash": "6895622e7aac51efcf0e1aa8cf9a4e0dabef0662176163c38af88395258a47f6",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-19T12:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2176\naJViLnqsUe/PDhqoz5pODavvBmIXYWPDiviDlSWKR/Y=\n\n— s4rciv-checkpoint-2026 tBLrwSaQW+T2U2WoXwh2QUnFKgSVJIhnSLrPVfcMC8Xo6Iu2GRRjLfEBSeFE+RQxvw6RhUE26Bmyhpd81dJG6MQC+gU=\n"
    },
    {
      "throughSeq": 2175,
      "treeSize": 2175,
      "rootHash": "33eabaec593f483ece524f6771e96a6a779dcdaf61e54ff521175ebe61b626d5",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-18T13:00:13.712Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2175\nM+q67Fk/SD7OUk9ncelqanedza9h5U/1IRdevmG2JtU=\n\n— s4rciv-checkpoint-2026 tBLrwZfiSvz4UShPtqsIP4/NtXXvsm5pXCQu+syI+Pxa/8kJKpvKHzRZU0FCySAmboivYRYP7VEmNX8Hfpq091f5qwE=\n"
    },
    {
      "throughSeq": 2174,
      "treeSize": 2174,
      "rootHash": "5b1164f3e2efb6b183c9964f66171726ad451bc0a7950ac1f220064ef24ec811",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-18T00:00:32.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2174\nWxFk8+LvtrGDyZZPZhcXJq1FG8CnlQrB8iAGTvJOyBE=\n\n— s4rciv-checkpoint-2026 tBLrwQDuJlcoPchs1xvTQlDU32Y8Ufbhq4YpWyXefCEnh96mxdRveFjHRMy/avNac2zhiqFWkAd7tfYztOVqRByIswU=\n"
    },
    {
      "throughSeq": 2173,
      "treeSize": 2173,
      "rootHash": "3975d44df50509610f0356555ee443da63a1a15992debe6fbfe3472ffd9df070",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-17T22:00:32.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2173\nOXXUTfUFCWEPA1ZVXuRD2mOhoVmS3r5vv+NHL/2d8HA=\n\n— s4rciv-checkpoint-2026 tBLrwfHTEMDXmnWXtL+Zo6c0AYgTX/yyqTAtZ6qfYjG/3wv9gRwvzqE7576Dnt20Q2iJEUveReh9JA6xZ990hKiTCAE=\n"
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    {
      "throughSeq": 2172,
      "treeSize": 2172,
      "rootHash": "877abca3e65dc01e08aa266ba0fe6d6096bebbc1d87527dd9bc2112289090b2b",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-17T21:00:32.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2172\nh3q8o+ZdwB4IqiZroP5tYJa+u8HYdSfdm8IRIokJCys=\n\n— s4rciv-checkpoint-2026 tBLrwb7KR6DMBUNXIRA1G8ACYDS0wCb0kPRPSlW9ZT62RGxYHkKapVBtnGJNzRDHox6w8zszq1rmYjohMyeNBPqw8wg=\n"
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    {
      "throughSeq": 2171,
      "treeSize": 2171,
      "rootHash": "0284396b325bfe1e6d12794479f3bf11be9bddaf040e754f612353736081a5c9",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-17T20:00:32.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2171\nAoQ5azJb/h5tEnlEefO/Eb6b3a8EDnVPYSNTc2CBpck=\n\n— s4rciv-checkpoint-2026 tBLrwUcAz5dhVM6yVJGYO1frxtoRra+bYWVG8bgI4xRzu9TWo2Xemj4v/U0vtKCcU8YRtOHh7lumByhriDMeSiA6mg4=\n"
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    {
      "throughSeq": 2170,
      "treeSize": 2170,
      "rootHash": "02cd096df02fba9dd7d443b7aa34d3aea7ef9af6525e56c08642ac5c99d4211e",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-17T17:00:32.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2170\nAs0JbfAvup3X1EO3qjTTrqfvmvZSXlbAhkKsXJnUIR4=\n\n— s4rciv-checkpoint-2026 tBLrwXI2BbHIvUCDuU1PeylgHPwp2WQAlHEgxCXAgUH/IPujJSHhl4Yqd+Io+vskQNY3IO0B0hbnS4+mL4HzjMWXEwM=\n"
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    {
      "throughSeq": 2169,
      "treeSize": 2169,
      "rootHash": "ba7b5e392a9aa999799120c8737c0ff5829445f1d1657ef76415ce42b3b85afb",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-17T15:00:32.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2169\nunteOSqaqZl5kSDIc3wP9YKURfHRZX73ZBXOQrO4Wvs=\n\n— s4rciv-checkpoint-2026 tBLrwd7dUc/CDEZ5lzullB1S7qKTEKcQh5+zjbyL3ql0r+eslOSBDzWcyP4uTb4OKNPVcpdRgyGIOJ44M/CaSK6esgg=\n"
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    {
      "throughSeq": 2167,
      "treeSize": 2167,
      "rootHash": "a0aab7fe854f44484d279af5d5ea80dcd343f52334186a94d7561f2dfe092ae9",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-17T12:00:32.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2167\noKq3/oVPREhNJ5r11eqA3NND9SM0GGqU11YfLf4JKuk=\n\n— s4rciv-checkpoint-2026 tBLrwd4628uLzrbgPWwM/8Dqgqj4ZN/4c7OFlWe+vw9KkfbpTKvO4sWqeImtTUCcMUL+JB1ls883kmb6RAnV+iDaigk=\n"
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    {
      "throughSeq": 2161,
      "treeSize": 2161,
      "rootHash": "368222b5d7a566c9653e0899b6d6fd4bf5e3e646a67c02b7429b42dddc7a74df",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-17T05:00:32.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2161\nNoIitdelZsllPgiZttb9S/Xj5kamfAK3QptC3dx6dN8=\n\n— s4rciv-checkpoint-2026 tBLrwS7eWbuTu7tff0XELFFTuLsJEubVmG4ouIyoG/7/bI/XsuuO1r3zvmCMVGtfazOJqN1ATzCRZHNL7IFhdiyAegw=\n"
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    {
      "throughSeq": 2159,
      "treeSize": 2159,
      "rootHash": "95ae69ba85a159b37ca36e8947d233d4d3c74a0d5d7941f7542873abedb10cf5",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-16T21:00:56.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2159\nla5puoWhWbN8o26JR9Iz1NPHSg1deUH3VChzq+2xDPU=\n\n— s4rciv-checkpoint-2026 tBLrwYBkQLdJ64CT5bxxTGEqNAwlovvU9mdhyDulnK461lehOLFiLgUwVrTMhJMBFdrtOtWQulWY/8bstAjSp8s0/gw=\n"
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    {
      "throughSeq": 2142,
      "treeSize": 2142,
      "rootHash": "ad835df469e37f6f18af164cefe84bfaeefa38b8bb5132e6c260f18e9f49e5bf",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-16T15:00:56.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2142\nrYNd9Gnjf28YrxZM7+hL+u76OLi7UTLmwmDxjp9J5b8=\n\n— s4rciv-checkpoint-2026 tBLrweyCp89FftJDqwVipBqpNcstNpfvkx4zSSUQJA9VSIg981ZzpRDF45/nLeRtOQXXWRM+NperuBVnm62efSaR2A0=\n"
    },
    {
      "throughSeq": 2136,
      "treeSize": 2136,
      "rootHash": "c7f8132d2ddae9bbbb9cd9fb86db711d6f703229f94d84480fead68d920b94a5",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-16T13:00:56.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2136\nx/gTLS3a6bu7nNn7httxHW9wMin5TYRID+rWjZILlKU=\n\n— s4rciv-checkpoint-2026 tBLrwc5Cy/f7fkBXKBA9BVY9KFRr0x4o8XzeyHvcYJgp8jI0lDs+wCVpgPOYmSI04QDiTK+iEET74p9LCgm7xE+E6wE=\n"
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    {
      "throughSeq": 2134,
      "treeSize": 2134,
      "rootHash": "cceef5184b7df281838f72bec0e47cb6ea8c956801057c2ff097aa629e8f7824",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-16T12:00:56.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2134\nzO71GEt98oGDj3K+wOR8tuqMlWgBBXwv8JeqYp6PeCQ=\n\n— s4rciv-checkpoint-2026 tBLrweiOu/Fs+eUJrjy97puwLGZ+vhvhpdK1ATmBeBkJ3WLCkWCRZTmK/UjMYeTuCquXegIsDzdiuyICxofNo9/XaQ8=\n"
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    {
      "throughSeq": 2133,
      "treeSize": 2133,
      "rootHash": "08644d07a6ff092a73c5c566730ad39be6f8381e2a570b40e4011cc8740b0950",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-16T05:00:56.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2133\nCGRNB6b/CSpzxcVmcwrTm+b4OB4qVwtA5AEcyHQLCVA=\n\n— s4rciv-checkpoint-2026 tBLrwSbONjZ/fUmER5cK2P7eOBvC3sBfXuqdXyeVzYUWIhqf2hjyP9shVeT2147eyxT2XkhzlkdYvRim0HTci2a1Igg=\n"
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    {
      "throughSeq": 2130,
      "treeSize": 2130,
      "rootHash": "7e85ef5d31d42e1b0633dc24ed97b93868a7688e27004fd6bd49ba69c1c730bb",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-15T21:00:13.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2130\nfoXvXTHULhsGM9wk7Ze5OGinaI4nAE/WvUm6acHHMLs=\n\n— s4rciv-checkpoint-2026 tBLrwZ2y2uZ5gpoZDfBR92D+JckJpLZiy8sRz5eVXn0OdJZRrQZ1cD7QYYRiuF7QpyoqnjAxkbfrwk+v/8XYA8Xh4Ag=\n"
    },
    {
      "throughSeq": 2119,
      "treeSize": 2119,
      "rootHash": "828395136001b2c454432dca4a031cae7ec7f3419b2bb64250fb71fa55e5dcf4",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-15T14:00:13.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2119\ngoOVE2ABssRUQy3KSgMcrn7H80GbK7ZCUPtx+lXl3PQ=\n\n— s4rciv-checkpoint-2026 tBLrwe96wQgyrJVNhnmCOVfFiWuSCYTs+FrnFlD3GnyiSJrBJ1bBdeBQS+OEckUxO9vK4aDczSKZ/+RawHynHzFjaAA=\n"
    },
    {
      "throughSeq": 2106,
      "treeSize": 2106,
      "rootHash": "07d49a7e31661b319414094f12623f6cfb6a7c0dae2ff092019b2141bce65e57",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-15T13:00:13.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2106\nB9SafjFmGzGUFAlPEmI/bPtqfA2uL/CSAZshQbzmXlc=\n\n— s4rciv-checkpoint-2026 tBLrwSN3Q4wMbEdwP0ZcyENaPb/DVd9JXAaX9WTfxfgEGa1qkoJGI2CRVMFQalv5ViH0TRKb5bwgvwMAGwtOODtHlAw=\n"
    },
    {
      "throughSeq": 2105,
      "treeSize": 2105,
      "rootHash": "ee6c13c129c43e4a3d0299db1fde086ea1ca3469f769487665ab5996561acdae",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-15T12:00:13.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2105\n7mwTwSnEPko9ApnbH94IbqHKNGn3aUh2ZatZllYaza4=\n\n— s4rciv-checkpoint-2026 tBLrwT+jz5x291EtYAO66PCk61xJSIMsdNM7mhOc4RYiuuI8IVLrUZJ204LUnA1ndpgscFZC4nvwAMFLZxfyk360ewQ=\n"
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    {
      "throughSeq": 2101,
      "treeSize": 2101,
      "rootHash": "e5a5d4fe6a76d5dd3ff41af53ac43a70497db7ff714b991f130fb183f7446bba",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-15T05:00:13.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2101\n5aXU/mp21d0/9Br1OsQ6cEl9t/9xS5kfEw+xg/dEa7o=\n\n— s4rciv-checkpoint-2026 tBLrwbLRKN/PTiLJ4vTmi6VxhepdItnj/R97W2PPaH/PD2gg6jJuyhwUR5MFzj1iyofVT7FRj28BfdZ378q/o3hvDQA=\n"
    },
    {
      "throughSeq": 2097,
      "treeSize": 2097,
      "rootHash": "a2a316bc9432d1f3abe200b1f9fb5b9d8fa90fb49dafff57bf74ecae93359c66",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-15T02:00:13.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2097\noqMWvJQy0fOr4gCx+ftbnY+pD7Sdr/9Xv3TsrpM1nGY=\n\n— s4rciv-checkpoint-2026 tBLrwV99cX3U+zz+UjdQsRDnb4GakE6f4ogd4Ln8ey4s8sJMbStYeLoXIdDJDAIgrsiXI+cxFwL9RkRw//i61teP7gg=\n"
    },
    {
      "throughSeq": 2096,
      "treeSize": 2096,
      "rootHash": "1e0fd8f276d91aadc81ea38a7af8944b6e6d36a5f4039a205a5d76a0d606584f",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-14T13:00:04.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2096\nHg/Y8nbZGq3IHqOKeviUS25tNqX0A5ogWl12oNYGWE8=\n\n— s4rciv-checkpoint-2026 tBLrwbvGbHHzEXBy3UI0I1Qo+yq19YMSfSvsyzI9p8xTZyRNny/2fPDcWFXdxN9AK+tajxGGXiUAQKK8m8TL4bdcyAg=\n"
    },
    {
      "throughSeq": 2083,
      "treeSize": 2083,
      "rootHash": "a1553e052d1d33f484419bd68017504ed67eb8c82be50984f541088609c6e5b7",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-14T12:00:04.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2083\noVU+BS0dM/SEQZvWgBdQTtZ+uMgr5QmE9UEIhgnG5bc=\n\n— s4rciv-checkpoint-2026 tBLrweyXuwB1jtRvWX4ZWpq84CEN9p9OlbUFaGitP3OzVjD7KXzLmBZD6klpj6e3ooEVqkADF67IG07QsgVEPGD1WQQ=\n"
    },
    {
      "throughSeq": 2078,
      "treeSize": 2078,
      "rootHash": "9bac320ab762ed802dc99cab7519c09a63a243c5e49f8dcac050c91014cd7afb",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-14T02:00:04.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2078\nm6wyCrdi7YAtyZyrdRnAmmOiQ8Xkn43KwFDJEBTNevs=\n\n— s4rciv-checkpoint-2026 tBLrwUxi9monN6IoHBr14kBO8Ucjve6AteJVW62R5s8o8jUJl2VJLo4uGO89Uw9gaPY0uEAT2n6ZBdDjRA9u5AwidAs=\n"
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    {
      "throughSeq": 2075,
      "treeSize": 2075,
      "rootHash": "bffe3d4e71b39f59d6d1f9ab5c2a933809b322b0068a67223c349f3e977d8b90",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-13T23:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2075\nv/49TnGzn1nW0fmrXCqTOAmzIrAGimciPDSfPpd9i5A=\n\n— s4rciv-checkpoint-2026 tBLrwXRnLkRcRfRWzAgjDwflmILEXKPrd+QjvzgekWCP4wwZDt5qKQIASjdB9RbQbCjkAudJUW0p8tJ7UJ4+BRIdcwU=\n"
    },
    {
      "throughSeq": 2074,
      "treeSize": 2074,
      "rootHash": "23ee01a026ef3d451cb8ff62347d76d0a95b35675a43d2c312616967ccb9c0ca",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-13T13:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2074\nI+4BoCbvPUUcuP9iNH120KlbNWdaQ9LDEmFpZ8y5wMo=\n\n— s4rciv-checkpoint-2026 tBLrweUYzVb8bXPzhXiMFvB35dxpTqH5LxB5/yMsyKJQobm3swVPQPE4S89Pv/ynUrukDQhdDFp5k5GRG5aq3y8EyQg=\n"
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    {
      "throughSeq": 2067,
      "treeSize": 2067,
      "rootHash": "bc1c14a39bd7e3931e73b687bbc65120caa7e4f24a04a296b7cc5e2b9b8fa1cf",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-13T11:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2067\nvBwUo5vX45Mec7aHu8ZRIMqn5PJKBKKWt8xeK5uPoc8=\n\n— s4rciv-checkpoint-2026 tBLrwTu48bxvRqr6csxn+1MvssYBqWIzzS1CEp2W9K9efn2y6oJFxJ/t39tr4uexkaKDjPFR7mVL7SIeBeTypDIJfAc=\n"
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    {
      "throughSeq": 2066,
      "treeSize": 2066,
      "rootHash": "5adea285910a295242ba700d18f246152ecc670c9002c45199e72bcae8975a8c",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-12T11:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2066\nWt6ihZEKKVJCunANGPJGFS7MZwyQAsRRmecryuiXWow=\n\n— s4rciv-checkpoint-2026 tBLrwUWU3ieJKglgDB46IdOTXVe1XGBpXtkAWAZyRi3RKTF7jqvwSvbLoj8dRGID7fKFauxZ8oBAjK2J4+hpljU04g0=\n"
    },
    {
      "throughSeq": 2065,
      "treeSize": 2065,
      "rootHash": "4bce07817ccf48d7cba5f9beb943ef4ff6b42d0952bf8ff4a4c57d635a82eedb",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-11T11:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2065\nS84HgXzPSNfLpfm+uUPvT/a0LQlSv4/0pMV9Y1qC7ts=\n\n— s4rciv-checkpoint-2026 tBLrwbakbdn3wLnBFFA1fsYDqqRhG076cLAg2gJORCEHQbi6SWmcT/7gVUaI3TiwxCG/XXCVHLoke0CKVFv00ljiLAU=\n"
    },
    {
      "throughSeq": 2064,
      "treeSize": 2064,
      "rootHash": "00a7309cb80a3798539c63c858a46f76f0f265f875813a336f401d67706bc660",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-11T02:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n2064\nAKcwnLgKN5hTnGPIWKRvdvDyZfh1gTozb0AdZ3BrxmA=\n\n— s4rciv-checkpoint-2026 tBLrweZhEy2Tg5QBVRGg+wrJeSbUsyZvOIWk2nPqmzGn/mbWHussZPr38BLwN6yv+g71ep4yCJty83dKvuAMpyG3dgg=\n"
    },
    {
      "throughSeq": 1958,
      "treeSize": 1958,
      "rootHash": "3302438fb6a8bd9956bccbccfc89a7de505af5421aa0809ac3a839c024e89a0c",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-11T01:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n1958\nMwJDj7aovZlWvMvM/Imn3lBa9UIaoICaw6g5wCTomgw=\n\n— s4rciv-checkpoint-2026 tBLrwUhyZ+8+rjouJhsumMcDOMKW4uh0r4TidktEtoZBhadVEBxHKqBjumFQthd5tsOz1FGc8K9PoSpb0e5P+CBhSwc=\n"
    },
    {
      "throughSeq": 1839,
      "treeSize": 1839,
      "rootHash": "e66c125626392e96647640b1a35c7c4bd4bb082264397ce3be92668aea46776a",
      "algVersion": "proto-linked-v1",
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      "recordedAt": "2026-10-11T00:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n1839\n5mwSViY5LpZkdkCxo1x8S9S7CCJkOXzjvpJmiupGd2o=\n\n— s4rciv-checkpoint-2026 tBLrwXd4ZiwCGts3/hKHAgjZXowkBHF7g94JF3AXVPlPDNp5SgzpinQRERAMre+LZAd9tsLWl/XfrHEt9DfW7HTFPwU=\n"
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      "treeSize": 1720,
      "rootHash": "0e0cd1e26e4d39293ffc76eabac3ce4651d1528ddb6d4073371b2d25082230e7",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T23:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n1720\nDgzR4m5NOSk//HbqusPORlHRUo3bbUBzNxstJQgiMOc=\n\n— s4rciv-checkpoint-2026 tBLrwX13nXjDcmGmNbYgVRNE1Fpa9JOWyD1oLCwDxD8byjXpV2eFQehaWJafjpWY67RuY85FQrGfok1Upabud9mCFQc=\n"
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      "throughSeq": 1601,
      "treeSize": 1601,
      "rootHash": "8582dee1e065b6ca1ef8a5f031e61afecf2246f5c4c93f3df1543b602ee2a81d",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T22:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n1601\nhYLe4eBltsoe+KXwMeYa/s8iRvXEyT898VQ7YC7iqB0=\n\n— s4rciv-checkpoint-2026 tBLrwSzCVFbm9S0fJijOlyh9FN3SMG7HiuOEOZO9/bYBZCZ4JaI+Aet8vq+8IT3gVZ6IgxDui8sc0JLhtTGQKlANaA0=\n"
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      "throughSeq": 1482,
      "treeSize": 1482,
      "rootHash": "b38cb734b5bbac50aee2f36fa0e137bae83fddb28b0b026221b6a2d5cc718e91",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T21:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n1482\ns4y3NLW7rFCu4vNvoOE3uug/3bKLCwJiIbai1cxxjpE=\n\n— s4rciv-checkpoint-2026 tBLrwaPG//E70Vw/uZQz7qAMK4Ymq2L2iWNNyGc/CisbuOlCPqt7ErJ+mw3N+XOggUUwijJEpqLDmwsCcOEl0QcsOAc=\n"
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      "throughSeq": 1363,
      "treeSize": 1363,
      "rootHash": "393aca74f8615b6856f78e8a895bb4668186b1fbc564cf6b08feb7dbc2440243",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T20:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n1363\nOTrKdPhhW2hW946KiVu0ZoGGsfvFZM9rCP6328JEAkM=\n\n— s4rciv-checkpoint-2026 tBLrwZTeqLzwRQVLcZ/FAkNqCaO8AYv0suuvO6iuXbJWugYnukiEcRipJ8PWpo1A3fGV0LLLk46lr3BSAqALW/AQFw0=\n"
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      "throughSeq": 1244,
      "treeSize": 1244,
      "rootHash": "2635d7b7a955c2ee80709f0aed6c0153669a32abee98571aacfa5d9d5fb691c5",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T19:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n1244\nJjXXt6lVwu6AcJ8K7WwBU2aaMqvumFcarPpdnV+2kcU=\n\n— s4rciv-checkpoint-2026 tBLrwbrvTS2hjHXD2p509e38nK//+ZE64R/J07jwnPhZwzJi5iNsdYlTGRHmGQ/vUHl7jgBVjhiKTTjwSTB8B5120wU=\n"
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      "throughSeq": 1125,
      "treeSize": 1125,
      "rootHash": "898442634727d9167b4c55514e5b7c76b009cbeee73999786a6b01969bb66c19",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T18:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n1125\niYRCY0cn2RZ7TFVRTlt8drAJy+7nOZl4amsBlpu2bBk=\n\n— s4rciv-checkpoint-2026 tBLrwZLW9w1ej7tPx8pblKCS6l9bAT+ZXwlrbMUoqCYGqnIlkqp5OotUErEglxLSQWwKkjtsvfZUFbgG3uFUPL28dw4=\n"
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      "throughSeq": 1006,
      "treeSize": 1006,
      "rootHash": "644364a6c99d85caf0718e5b7ae55b67e44593744d91d7b6060ca2e6665949ae",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T17:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n1006\nZENkpsmdhcrwcY5beuVbZ+RFk3RNkde2Bgyi5mZZSa4=\n\n— s4rciv-checkpoint-2026 tBLrwVowyM2v0jMCsLlKcUEdy1sk014sKpA+cAVTtxWDNa8ce5VHThmmiEwQlL1rQ4HhawCitWXT8+UkkuWheS+NKAY=\n"
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      "throughSeq": 889,
      "treeSize": 889,
      "rootHash": "f639063de85d518b5e1ac920a5eaf3f36f08f6b11f9789f0fb1ba0a240131114",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T16:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n889\n9jkGPehdUYteGskgperz828I9rEfl4nw+xugokATERQ=\n\n— s4rciv-checkpoint-2026 tBLrwdGN1/+IM+ee0Gi/RS4KK8uHtfvidRdcUXIIjpuRycXZjz8NzFyWHcq5Gec1/pKl6p6bpscl/EM4k5orcswZhwI=\n"
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      "throughSeq": 773,
      "treeSize": 773,
      "rootHash": "374bf45737001fd696e31e9d70578d04f4047b29a80784325466aa7138c263d0",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T15:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n773\nN0v0VzcAH9aW4x6dcFeNBPQEeymoB4QyVGaqcTjCY9A=\n\n— s4rciv-checkpoint-2026 tBLrwRC9tn7BrcBqQ6F1q4I7fjesO/kTbnNuL0YI09136lq7vMPsMcusWPlsUFo5oh9KbRSnw6rrCBoETCYhHnyXQgI=\n"
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    {
      "throughSeq": 657,
      "treeSize": 657,
      "rootHash": "4a53f7336210e0f3aab580087936f4b356a7eaafaa98e7759c7532270aabcb0f",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T14:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n657\nSlP3M2IQ4POqtYAIeTb0s1an6q+qmOd1nHUyJwqryw8=\n\n— s4rciv-checkpoint-2026 tBLrwc0I5rxDoejmj1O5Z4TnywmNTjI9Sz4Q+HuTs3XfD3/dLDFaJqLGqSfudOZ39HZnXjIxUm4efzt7egyF3dwOvwQ=\n"
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    {
      "throughSeq": 541,
      "treeSize": 541,
      "rootHash": "d5ab425f3c290b831ff75c2379ebecd92e4d66021d08c697f2fb69f1d2442683",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T13:00:09.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n541\n1atCXzwpC4Mf91wjeevs2S5NZgIdCMaX8vtp8dJEJoM=\n\n— s4rciv-checkpoint-2026 tBLrwUaPccSIoucJs8E9zyL9uBASh7+vfeMOMcEoAMrBuMixHT5godP5wvDl/S+cku9RrBgtvE3fwmLWzBaNAllQvQQ=\n"
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    {
      "throughSeq": 425,
      "treeSize": 425,
      "rootHash": "4cf6aa8dae88064f419f32ac880171ae1f8aa457bc68923f2670b89ef189430d",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T12:00:14.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n425\nTPaqja6IBk9BnzKsiAFxrh+KpFe8aJI/JnC4nvGJQw0=\n\n— s4rciv-checkpoint-2026 tBLrwYnOOTfsQXkJMwQ9XLaeh+Kao2lenynMhTjA/mNbbSEV0uG5YUan1mhbtAX7xQnvs81QO+KkZOhsYixHXp0pSQo=\n"
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    {
      "throughSeq": 307,
      "treeSize": 307,
      "rootHash": "6ec5fbd0fa8dc80538bbf2de13df49f17add9f7fd29c8caf840198c1074ff090",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T11:00:14.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n307\nbsX70PqNyAU4u/LeE99J8Xrdn3/SnIyvhAGYwQdP8JA=\n\n— s4rciv-checkpoint-2026 tBLrwWParkESgTQbmKBxo/EQdow2eZYPSFXmYGJZjjehiSidu2SIHbJcaex0PJgZ+qJDfa16Jw4e7Da2JdRs6QFTYwc=\n"
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    {
      "throughSeq": 73,
      "treeSize": 73,
      "rootHash": "21f870d58c8db96291ea15c6c9fe5874dad72065d06fc9aade1da09524760c83",
      "algVersion": "proto-linked-v1",
      "signerKeyId": "s4rciv-checkpoint-2026",
      "recordedAt": "2026-10-10T10:00:14.000Z",
      "signedNote": "s4rciv.com/observation/g2026-10/proto-linked-v1\n73\nIfhw1YyNuWKR6hXGyf5YdNrXIGXQb8mq3h2glSR2DIM=\n\n— s4rciv-checkpoint-2026 tBLrwU28OnoWKA7a1ST+RXKLM/VHepzzaAUcXR2dNB0UAHprenAh+PYKpDrjnslKjF4whC7FfQlSg1pIT5KOO7Gq/gc=\n"
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}