{
    "tender_id": 3834497,
    "check": {
        "ok": true,
        "versions": 4,
        "broken_at": null
    },
    "formula": "content_hash = sha256(content); hash = sha256(prev_hash + \"\\n\" + tender_id + \"\\n\" + version + \"\\n\" + recorded_at + \"\\n\" + content_hash [+ \"\\n\" + actor, when the version has one])",
    "versions": [
        {
            "version": 1,
            "recorded_at": "2026-10-28T22:34:38Z",
            "content": "{\"cpv\": \"77200000\", \"url\": \"https://e-propublico.pl/Ogloszenia/Details/fc2e6233-251a-4165-ad63-563c2422c3d8\", \"buyer\": \"Centralny Instytut Analiz Polityczno-Prawnych\", \"title\": \"Wykonywanie usług z zakresu gospodarki leśnej na terenie Nadleśnictwa Miechów w roku 2027\", \"source\": \"epropublico\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"fc2e6233-251a-4165-ad63-563c2422c3d8\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T22:34:39Z\"}",
            "content_hash": "62dd30559622aeefffd2b1aeb3b723bb6d274934112d8458881919c492544be7",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "da62c889723482bfacc605862e902dc1131ae3c5e6a5da6a2cd1be79e0d5cdcb",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-28T22:45:30Z",
            "content": "{\"cpv\": \"77200000\", \"url\": \"https://e-propublico.pl/Ogloszenia/Details/fc2e6233-251a-4165-ad63-563c2422c3d8\", \"buyer\": \"Centralny Instytut Analiz Polityczno-Prawnych\", \"title\": \"Wykonywanie usług z zakresu gospodarki leśnej na terenie Nadleśnictwa Miechów w roku 2027\", \"source\": \"epropublico\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"fc2e6233-251a-4165-ad63-563c2422c3d8\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T22:34:39Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1388567\"}",
            "content_hash": "c71421b915fa52a54e5c8dfbc32a751ff97c815297a2f5988ab9c66bce3b3dd4",
            "prev_hash": "da62c889723482bfacc605862e902dc1131ae3c5e6a5da6a2cd1be79e0d5cdcb",
            "hash": "db569d741a900e00dbb7ffd99cb203ce145c19914a7008cb38a45ea6672cd9ac",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-29T07:32:34Z",
            "content": "{\"cpv\": \"77200000\", \"url\": \"https://e-propublico.pl/Ogloszenia/Details/fc2e6233-251a-4165-ad63-563c2422c3d8\", \"buyer\": \"Centralny Instytut Analiz Polityczno-Prawnych\", \"title\": \"Wykonywanie usług z zakresu gospodarki leśnej na terenie Nadleśnictwa Miechów w roku 2027\", \"source\": \"epropublico\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"fc2e6233-251a-4165-ad63-563c2422c3d8\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T22:34:39Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1387855\"}",
            "content_hash": "2918d67d98fddbb6c62cf529c7c7f8524c727a30c067e2da2b14796b19692ae8",
            "prev_hash": "db569d741a900e00dbb7ffd99cb203ce145c19914a7008cb38a45ea6672cd9ac",
            "hash": "b0b61ef8db607ee610f00b82af61701b384e141c998cf2c19fc8939d6ee2c9ba",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-10-30T07:31:11Z",
            "content": "{\"cpv\": \"77200000\", \"url\": \"https://e-propublico.pl/Ogloszenia/Details/fc2e6233-251a-4165-ad63-563c2422c3d8\", \"buyer\": \"Centralny Instytut Analiz Polityczno-Prawnych\", \"title\": \"Wykonywanie usług z zakresu gospodarki leśnej na terenie Nadleśnictwa Miechów w roku 2027\", \"source\": \"epropublico\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"fc2e6233-251a-4165-ad63-563c2422c3d8\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T22:34:39Z\", \"procedure_url\": \"https://e-propublico.pl/Ogloszenia/Details/fc2e6233-251a-4165-ad63-563c2422c3d8\"}",
            "content_hash": "6b9700188e55c73786d45815ba12d2ef8fecf240d30df3d7b32f49db0b0c474c",
            "prev_hash": "b0b61ef8db607ee610f00b82af61701b384e141c998cf2c19fc8939d6ee2c9ba",
            "hash": "33e042f47071ce3e87cc66ad321f816056771cc3f06e540a48a19aabe872e7e6",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        }
    ]
}