{
  "ledger": "IronBridge LAW-25 hash-chain",
  "spec": "append-only sha256 hash-chain; chainlink_row = sha256(canonical(row)); chainlink_prev = prior row chainlink_row",
  "chain_length": 3581,
  "head": {
    "seq": 3581,
    "ts": "2026-06-13T04:15:02.836Z",
    "status": "applied",
    "chainlink_prev": "fbff9add2e9d53f67d6a72211841b7e4a840960b335ed0356a5635de3bb7a256",
    "chainlink_row": "15fddf10e4bfc3888fbbd25991e2b165831708d0e6012c31b92ceb434bb63ee3"
  },
  "window": {
    "from": 3532,
    "to": 3581,
    "checked": 50,
    "continuity_ok": true,
    "breaks": []
  },
  "rows": [
    {
      "seq": 3532,
      "ts": "2026-06-12T16:00:02.357Z",
      "status": "applied",
      "chainlink_prev": "539b599558bfb304e7a50140ec6aed8bd5d3f1f741d12e209288fdc45fd4cb0b",
      "chainlink_row": "17391e4636d2085d16c61b94aa8c85a1b675b657b3d73a5a783a47d86c89f77e"
    },
    {
      "seq": 3533,
      "ts": "2026-06-12T16:15:02.877Z",
      "status": "applied",
      "chainlink_prev": "17391e4636d2085d16c61b94aa8c85a1b675b657b3d73a5a783a47d86c89f77e",
      "chainlink_row": "5e1592205e7d59a96fbdc29805f5b5ae86eeb44fd862b3a57b4285c29f49d16f"
    },
    {
      "seq": 3534,
      "ts": "2026-06-12T16:30:02.763Z",
      "status": "applied",
      "chainlink_prev": "5e1592205e7d59a96fbdc29805f5b5ae86eeb44fd862b3a57b4285c29f49d16f",
      "chainlink_row": "30f5b8f7f2350109eb102ccd7fc4c23b67ed36890318a854d619601915be02d3"
    },
    {
      "seq": 3535,
      "ts": "2026-06-12T16:45:03.132Z",
      "status": "applied",
      "chainlink_prev": "30f5b8f7f2350109eb102ccd7fc4c23b67ed36890318a854d619601915be02d3",
      "chainlink_row": "d7d2fb42e08ebbe94b3d3314768330bcb19bf677895dab94eb3a76adf84c6562"
    },
    {
      "seq": 3536,
      "ts": "2026-06-12T17:00:03.654Z",
      "status": "applied",
      "chainlink_prev": "d7d2fb42e08ebbe94b3d3314768330bcb19bf677895dab94eb3a76adf84c6562",
      "chainlink_row": "d59a51bb56349f9084dcf76e0bd70a2a2fda7ef605848ecadf3852a9cb81c922"
    },
    {
      "seq": 3537,
      "ts": "2026-06-12T17:15:02.406Z",
      "status": "applied",
      "chainlink_prev": "d59a51bb56349f9084dcf76e0bd70a2a2fda7ef605848ecadf3852a9cb81c922",
      "chainlink_row": "628806f9abf680ea954ccd23a75b91dedf5c4c26002fd5c8655fb7ec4daa856c"
    },
    {
      "seq": 3538,
      "ts": "2026-06-12T17:30:04.462Z",
      "status": "applied",
      "chainlink_prev": "628806f9abf680ea954ccd23a75b91dedf5c4c26002fd5c8655fb7ec4daa856c",
      "chainlink_row": "a5f65692dffc968fcad2c719ba881a9a9198dd6b94d597727dea8f4ea8c14e26"
    },
    {
      "seq": 3539,
      "ts": "2026-06-12T17:45:03.066Z",
      "status": "applied",
      "chainlink_prev": "a5f65692dffc968fcad2c719ba881a9a9198dd6b94d597727dea8f4ea8c14e26",
      "chainlink_row": "7d9857e3e76907e3862a2a123111c134c430c709bce88835c8be855893316a3c"
    },
    {
      "seq": 3540,
      "ts": "2026-06-12T18:00:01.544Z",
      "status": "applied",
      "chainlink_prev": "7d9857e3e76907e3862a2a123111c134c430c709bce88835c8be855893316a3c",
      "chainlink_row": "9628d27291d1705bc76bfff8d6550553d89838768a2f0948beda002d84ae50d0"
    },
    {
      "seq": 3541,
      "ts": "2026-06-12T18:15:02.822Z",
      "status": "applied",
      "chainlink_prev": "9628d27291d1705bc76bfff8d6550553d89838768a2f0948beda002d84ae50d0",
      "chainlink_row": "5a35d7fce11a4c67097b631089784f33224c107ff548c470900d7a42b4771cd7"
    },
    {
      "seq": 3542,
      "ts": "2026-06-12T18:30:02.572Z",
      "status": "applied",
      "chainlink_prev": "5a35d7fce11a4c67097b631089784f33224c107ff548c470900d7a42b4771cd7",
      "chainlink_row": "0fd6fefd268c6ac171b2fa65f16bb70f5be86d28b43a293bddd574d5bd42a640"
    },
    {
      "seq": 3543,
      "ts": "2026-06-12T18:45:02.209Z",
      "status": "applied",
      "chainlink_prev": "0fd6fefd268c6ac171b2fa65f16bb70f5be86d28b43a293bddd574d5bd42a640",
      "chainlink_row": "d814cdc5e4bbce220bf2b3cc8cdfb4bb9fc53d11e1f7cd42367c34de2ac8653a"
    },
    {
      "seq": 3544,
      "ts": "2026-06-12T19:00:02.996Z",
      "status": "applied",
      "chainlink_prev": "d814cdc5e4bbce220bf2b3cc8cdfb4bb9fc53d11e1f7cd42367c34de2ac8653a",
      "chainlink_row": "4e773b9d85497cfafba8f7ca1d5b4113c7e37626d5c3b1d2def0e8b946863fa1"
    },
    {
      "seq": 3545,
      "ts": "2026-06-12T19:15:02.057Z",
      "status": "applied",
      "chainlink_prev": "4e773b9d85497cfafba8f7ca1d5b4113c7e37626d5c3b1d2def0e8b946863fa1",
      "chainlink_row": "80d8a82ca0e0bfbf7876f56295ee6ea9caa3dae96ff682b69ab31212b52ae0fc"
    },
    {
      "seq": 3546,
      "ts": "2026-06-12T19:30:02.965Z",
      "status": "applied",
      "chainlink_prev": "80d8a82ca0e0bfbf7876f56295ee6ea9caa3dae96ff682b69ab31212b52ae0fc",
      "chainlink_row": "0aa82de428a357e2fed15c3c290bb8c7daff4a687bb74e84dc7c32133fd25724"
    },
    {
      "seq": 3547,
      "ts": "2026-06-12T19:45:02.483Z",
      "status": "applied",
      "chainlink_prev": "0aa82de428a357e2fed15c3c290bb8c7daff4a687bb74e84dc7c32133fd25724",
      "chainlink_row": "7172114776f89152ac5f66c81219feb8e41af9a82267ce5a6c8f373c87990cc2"
    },
    {
      "seq": 3548,
      "ts": "2026-06-12T20:00:03.171Z",
      "status": "applied",
      "chainlink_prev": "7172114776f89152ac5f66c81219feb8e41af9a82267ce5a6c8f373c87990cc2",
      "chainlink_row": "0185207b5a8e3594670754011da9c6d55e1b86b7443938edda73171cd2d960c7"
    },
    {
      "seq": 3549,
      "ts": "2026-06-12T20:15:02.854Z",
      "status": "applied",
      "chainlink_prev": "0185207b5a8e3594670754011da9c6d55e1b86b7443938edda73171cd2d960c7",
      "chainlink_row": "8f4e2068f2e939b6924b477ba37f96a8878e315fda3604c401776b7ae4ad4252"
    },
    {
      "seq": 3550,
      "ts": "2026-06-12T20:30:03.101Z",
      "status": "applied",
      "chainlink_prev": "8f4e2068f2e939b6924b477ba37f96a8878e315fda3604c401776b7ae4ad4252",
      "chainlink_row": "ff75dea0691c0297b082c24f5e718614cf96ac9a895729db2e927c3909260ae9"
    },
    {
      "seq": 3551,
      "ts": "2026-06-12T20:45:02.722Z",
      "status": "applied",
      "chainlink_prev": "ff75dea0691c0297b082c24f5e718614cf96ac9a895729db2e927c3909260ae9",
      "chainlink_row": "fc6867f59ba40c2a94e2917418c37570db47da4aa661472a5fe6a17eff7d5b8b"
    },
    {
      "seq": 3552,
      "ts": "2026-06-12T21:00:03.352Z",
      "status": "applied",
      "chainlink_prev": "fc6867f59ba40c2a94e2917418c37570db47da4aa661472a5fe6a17eff7d5b8b",
      "chainlink_row": "50d6e0c7a268322fd4ea174031a5b29396e3fb9671e8291355087455ca9d657f"
    },
    {
      "seq": 3553,
      "ts": "2026-06-12T21:15:02.556Z",
      "status": "applied",
      "chainlink_prev": "50d6e0c7a268322fd4ea174031a5b29396e3fb9671e8291355087455ca9d657f",
      "chainlink_row": "617af260afaaf9cbb42479256ca0743dc655d2b158111e5fda08ba53fc35b109"
    },
    {
      "seq": 3554,
      "ts": "2026-06-12T21:30:02.563Z",
      "status": "applied",
      "chainlink_prev": "617af260afaaf9cbb42479256ca0743dc655d2b158111e5fda08ba53fc35b109",
      "chainlink_row": "a60629fbd3ebd81cfcc4b07275c2c494b316e0f9669f99cf381aa80953ec01ef"
    },
    {
      "seq": 3555,
      "ts": "2026-06-12T21:45:02.519Z",
      "status": "applied",
      "chainlink_prev": "a60629fbd3ebd81cfcc4b07275c2c494b316e0f9669f99cf381aa80953ec01ef",
      "chainlink_row": "c06940dd3ef594e768d27db28abb18da61ff8346f0903087c3c751372ec0b198"
    },
    {
      "seq": 3556,
      "ts": "2026-06-12T22:00:03.355Z",
      "status": "applied",
      "chainlink_prev": "c06940dd3ef594e768d27db28abb18da61ff8346f0903087c3c751372ec0b198",
      "chainlink_row": "24a3009848352d2b5fd7d3b5696b06da7f7f235d204d724f047105bef800dea0"
    },
    {
      "seq": 3557,
      "ts": "2026-06-12T22:15:02.631Z",
      "status": "applied",
      "chainlink_prev": "24a3009848352d2b5fd7d3b5696b06da7f7f235d204d724f047105bef800dea0",
      "chainlink_row": "3c41c43bb56deac2d157f4ff19b5b5f0036a0472dc626328845a7d7e92b5ff4f"
    },
    {
      "seq": 3558,
      "ts": "2026-06-12T22:30:02.905Z",
      "status": "applied",
      "chainlink_prev": "3c41c43bb56deac2d157f4ff19b5b5f0036a0472dc626328845a7d7e92b5ff4f",
      "chainlink_row": "5945c09af2f949bc963740125d339410aa052009e13f198c9aeb0aa4819809b6"
    },
    {
      "seq": 3559,
      "ts": "2026-06-12T22:45:02.782Z",
      "status": "applied",
      "chainlink_prev": "5945c09af2f949bc963740125d339410aa052009e13f198c9aeb0aa4819809b6",
      "chainlink_row": "cdc75c4a16f9b2779ab657ed71d7b2cf468b0277406d2d0a0255121294800fdc"
    },
    {
      "seq": 3560,
      "ts": "2026-06-12T23:00:02.742Z",
      "status": "applied",
      "chainlink_prev": "cdc75c4a16f9b2779ab657ed71d7b2cf468b0277406d2d0a0255121294800fdc",
      "chainlink_row": "b7bb1382e9bbb0177e2de6766d3286fd76b4e8552df588c5b293e885e405d274"
    },
    {
      "seq": 3561,
      "ts": "2026-06-12T23:15:02.082Z",
      "status": "applied",
      "chainlink_prev": "b7bb1382e9bbb0177e2de6766d3286fd76b4e8552df588c5b293e885e405d274",
      "chainlink_row": "53e039a86fc83afb818b12fcd67bcbd1a0eef9ad9e7405d53ca07d81f049312b"
    },
    {
      "seq": 3562,
      "ts": "2026-06-12T23:30:02.869Z",
      "status": "applied",
      "chainlink_prev": "53e039a86fc83afb818b12fcd67bcbd1a0eef9ad9e7405d53ca07d81f049312b",
      "chainlink_row": "3ae3a3fe1cf1cf87a58368a631818583c553043bbd01fc7fe01915532695410a"
    },
    {
      "seq": 3563,
      "ts": "2026-06-12T23:45:01.920Z",
      "status": "applied",
      "chainlink_prev": "3ae3a3fe1cf1cf87a58368a631818583c553043bbd01fc7fe01915532695410a",
      "chainlink_row": "af343a33acc7eb152f8f4e4a7491f183ee755586378d8aa5d7f9902901a09041"
    },
    {
      "seq": 3564,
      "ts": "2026-06-13T00:00:04.403Z",
      "status": "applied",
      "chainlink_prev": "af343a33acc7eb152f8f4e4a7491f183ee755586378d8aa5d7f9902901a09041",
      "chainlink_row": "eafcd85aa88a22222c71faf273c1a1effcd703165054a3c63d13ffb0156e3ae2"
    },
    {
      "seq": 3565,
      "ts": "2026-06-13T00:15:02.617Z",
      "status": "applied",
      "chainlink_prev": "eafcd85aa88a22222c71faf273c1a1effcd703165054a3c63d13ffb0156e3ae2",
      "chainlink_row": "a05fa3e10a746586543712af83fd282cfa154929dd327c2786a12af978f94fcd"
    },
    {
      "seq": 3566,
      "ts": "2026-06-13T00:30:03.261Z",
      "status": "applied",
      "chainlink_prev": "a05fa3e10a746586543712af83fd282cfa154929dd327c2786a12af978f94fcd",
      "chainlink_row": "93c62e2110ac47728bb3345d2225b1a4147b1c6a85d1e1a80f92564730dc35b9"
    },
    {
      "seq": 3567,
      "ts": "2026-06-13T00:45:02.649Z",
      "status": "applied",
      "chainlink_prev": "93c62e2110ac47728bb3345d2225b1a4147b1c6a85d1e1a80f92564730dc35b9",
      "chainlink_row": "c3d6c1c4902d07057c2969e9fd270a7ee84c8c691af9319628e97fc72f36d960"
    },
    {
      "seq": 3568,
      "ts": "2026-06-13T01:00:03.277Z",
      "status": "applied",
      "chainlink_prev": "c3d6c1c4902d07057c2969e9fd270a7ee84c8c691af9319628e97fc72f36d960",
      "chainlink_row": "d9fe25d72c3a40a0ffe3b50daffb842474c48e5cde9b17a8188d55d9a62d2a93"
    },
    {
      "seq": 3569,
      "ts": "2026-06-13T01:15:03.182Z",
      "status": "applied",
      "chainlink_prev": "d9fe25d72c3a40a0ffe3b50daffb842474c48e5cde9b17a8188d55d9a62d2a93",
      "chainlink_row": "8d9a2a591ad550357512b323f1317cbd2cbdf62402e94b6f0b479be02b60b7de"
    },
    {
      "seq": 3570,
      "ts": "2026-06-13T01:30:02.610Z",
      "status": "applied",
      "chainlink_prev": "8d9a2a591ad550357512b323f1317cbd2cbdf62402e94b6f0b479be02b60b7de",
      "chainlink_row": "8f11833a2e58d14eb90d5d11c6a762a54136061a73aca55b1caad0f72e62e0be"
    },
    {
      "seq": 3571,
      "ts": "2026-06-13T01:45:02.619Z",
      "status": "applied",
      "chainlink_prev": "8f11833a2e58d14eb90d5d11c6a762a54136061a73aca55b1caad0f72e62e0be",
      "chainlink_row": "5bd4d8fd236506f11626c32c67c583f66d31ba8eb9d6cb99d6748482ba834fcc"
    },
    {
      "seq": 3572,
      "ts": "2026-06-13T02:00:02.821Z",
      "status": "applied",
      "chainlink_prev": "5bd4d8fd236506f11626c32c67c583f66d31ba8eb9d6cb99d6748482ba834fcc",
      "chainlink_row": "3dedaf310e101761e0b363a6a7f42aa2787a61d49ff7146f5e0c17c97a01452e"
    },
    {
      "seq": 3573,
      "ts": "2026-06-13T02:15:02.634Z",
      "status": "applied",
      "chainlink_prev": "3dedaf310e101761e0b363a6a7f42aa2787a61d49ff7146f5e0c17c97a01452e",
      "chainlink_row": "ceb659e3b331d6a0fdab016d60a3db21f95cb88fbe35531242abc6b72437baf2"
    },
    {
      "seq": 3574,
      "ts": "2026-06-13T02:30:03.112Z",
      "status": "applied",
      "chainlink_prev": "ceb659e3b331d6a0fdab016d60a3db21f95cb88fbe35531242abc6b72437baf2",
      "chainlink_row": "05eb3d62ebe104e6a4dbf269e0ff394e10ee5dff23a28bf0b2f2e1ddf350e7a5"
    },
    {
      "seq": 3575,
      "ts": "2026-06-13T02:45:03.369Z",
      "status": "applied",
      "chainlink_prev": "05eb3d62ebe104e6a4dbf269e0ff394e10ee5dff23a28bf0b2f2e1ddf350e7a5",
      "chainlink_row": "ca7de92269596154ee661e339d1c3b124571edd99df0a64043fd0742598e1087"
    },
    {
      "seq": 3576,
      "ts": "2026-06-13T03:00:02.405Z",
      "status": "applied",
      "chainlink_prev": "ca7de92269596154ee661e339d1c3b124571edd99df0a64043fd0742598e1087",
      "chainlink_row": "6a5e96a1dbd959325bb0f01ba90f516e762c9f59139b3254fdf770ed0acc5591"
    },
    {
      "seq": 3577,
      "ts": "2026-06-13T03:15:02.983Z",
      "status": "applied",
      "chainlink_prev": "6a5e96a1dbd959325bb0f01ba90f516e762c9f59139b3254fdf770ed0acc5591",
      "chainlink_row": "4ca193f7cbd589c93fdde1b4bd39369bc1da0eeb9aa150c6c16213d6420d1bc8"
    },
    {
      "seq": 3578,
      "ts": "2026-06-13T03:30:03.436Z",
      "status": "applied",
      "chainlink_prev": "4ca193f7cbd589c93fdde1b4bd39369bc1da0eeb9aa150c6c16213d6420d1bc8",
      "chainlink_row": "18f616ece5331a74c9448c59e3b2ebbca01c562e6a0f4832d2a36a1f37096597"
    },
    {
      "seq": 3579,
      "ts": "2026-06-13T03:45:03.647Z",
      "status": "applied",
      "chainlink_prev": "18f616ece5331a74c9448c59e3b2ebbca01c562e6a0f4832d2a36a1f37096597",
      "chainlink_row": "b79bd7740c8d12b6d5c4656b2de1aa19dd3f5bdbace30be9ca96d5c62551f96f"
    },
    {
      "seq": 3580,
      "ts": "2026-06-13T04:00:03.459Z",
      "status": "applied",
      "chainlink_prev": "b79bd7740c8d12b6d5c4656b2de1aa19dd3f5bdbace30be9ca96d5c62551f96f",
      "chainlink_row": "fbff9add2e9d53f67d6a72211841b7e4a840960b335ed0356a5635de3bb7a256"
    },
    {
      "seq": 3581,
      "ts": "2026-06-13T04:15:02.836Z",
      "status": "applied",
      "chainlink_prev": "fbff9add2e9d53f67d6a72211841b7e4a840960b335ed0356a5635de3bb7a256",
      "chainlink_row": "15fddf10e4bfc3888fbbd25991e2b165831708d0e6012c31b92ceb434bb63ee3"
    }
  ],
  "how_to_verify": "For each row n: confirm rows[n].chainlink_prev === rows[n-1].chainlink_row. Any break = tamper. Spot-check any single row (with server-side leaf recompute) via ?row=N. Leaf contents withheld to protect internal operations; each row carries an HMAC authorship seal.",
  "authorship_seal": "HMAC (keyed) per row"
}