{
    "ok": true,
    "valid": true,
    "checked": 5,
    "chain_tip": "1be3e5a6e7ac2994a1f5f70b490a25edf5ca62244f59aaddea3c3dc6b4f7a64b",
    "errors": [],
    "scope": "active_chain_only",
    "epoch_no": 2,
    "active_epoch": {
        "epoch_no": 2,
        "label": "Chain v2 active",
        "status": "active",
        "reason": "Chain v1 closed after integrity break/deployment rollback. Chain v2 starts from a new public genesis checkpoint.",
        "genesis_hash": "31604f5525846608265ab56dd81a2060f163c0b1c6c71ebd7cefe0a268ddd1b2",
        "genesis_json": "{\n    \"project\": \"Retrochannel 2100\",\n    \"event\": \"chain_v2_genesis\",\n    \"created_at\": \"2026-05-11T16:57:36+00:00\",\n    \"legacy_epoch\": 1,\n    \"new_epoch\": 2,\n    \"legacy_chain_valid\": false,\n    \"legacy_checked\": 4,\n    \"legacy_chain_tip\": \"40065f189fdeb8dab67b81a9754c358aa5e716ff17540a7e11abf9011d9620cf\",\n    \"legacy_public_export_hash\": \"8b3ab0e9c140ca2a8a3e2cc672ecab07dc341eb0a77f8825aa0a5bfc5dccb120\",\n    \"legacy_signal_count\": 5,\n    \"reason\": \"Chain v1 closed after integrity break/deployment rollback. Chain v2 starts from a new public genesis checkpoint.\",\n    \"policy\": \"Legacy records are preserved for transparency but are not treated as part of the active tamper-evident chain.\"\n}",
        "started_at": "2026-05-11 18:57:36",
        "closed_at": null,
        "epoch_table_present": true,
        "epoch_column_present": true
    },
    "initial_root": "31604f5525846608265ab56dd81a2060f163c0b1c6c71ebd7cefe0a268ddd1b2",
    "position_field": "epoch_position",
    "legacy_chain": {
        "epoch": {
            "epoch_no": 1,
            "label": "Chain v1 legacy archive",
            "status": "closed",
            "reason": "Chain v1 closed after integrity break/deployment rollback. Chain v2 starts from a new public genesis checkpoint.",
            "genesis_hash": "GENESIS",
            "genesis_json": "{\"legacy\":{\"ok\":false,\"valid\":false,\"checked\":4,\"chain_tip\":\"40065f189fdeb8dab67b81a9754c358aa5e716ff17540a7e11abf9011d9620cf\",\"errors\":[{\"id\":5,\"code\":\"SERVER_HASH_MISMATCH\",\"position\":4},{\"id\":5,\"code\":\"CHAIN_HASH_MISMATCH\",\"position\":4}],\"epoch_no\":1,\"active_epoch_no\":1,\"active_epoch\":{\"epoch_no\":1,\"label\":\"Chain v1 legacy/default\",\"status\":\"active_legacy_mode\",\"reason\":\"Epoch table has not been initialized. Falling back to original single-chain behavior.\",\"genesis_hash\":\"GENESIS\",\"genesis_json\":\"\",\"started_at\":null,\"closed_at\":null,\"epoch_table_present\":true,\"epoch_column_present\":true},\"verified_epoch\":{\"epoch_no\":1,\"label\":\"Chain v1 legacy/default\",\"status\":\"active_legacy_mode\",\"reason\":\"Epoch table has not been initialized. Falling back to original single-chain behavior.\",\"genesis_hash\":\"GENESIS\",\"genesis_json\":\"\",\"started_at\":null,\"closed_at\":null,\"epoch_table_present\":true,\"epoch_column_present\":true},\"initial_root\":\"GENESIS\",\"position_field\":\"epoch_position\",\"scope\":\"active_chain\"},\"legacy_export_hash\":{\"count\":5,\"hash\":\"8b3ab0e9c140ca2a8a3e2cc672ecab07dc341eb0a77f8825aa0a5bfc5dccb120\"}}",
            "started_at": "2026-05-11 18:57:36",
            "closed_at": "2026-05-11 18:57:36",
            "epoch_table_present": true,
            "epoch_column_present": true
        },
        "valid": false,
        "checked": 4,
        "chain_tip": "40065f189fdeb8dab67b81a9754c358aa5e716ff17540a7e11abf9011d9620cf",
        "errors": [
            {
                "id": 5,
                "code": "SERVER_HASH_MISMATCH",
                "position": 4
            },
            {
                "id": 5,
                "code": "CHAIN_HASH_MISMATCH",
                "position": 4
            }
        ],
        "status_explanation": "Legacy chain is preserved for transparency and is not the active public integrity chain."
    },
    "transparency_note": "Chain v1 is preserved as a legacy archive. Active verification is for Chain v2 only."
}