{
    "tender_id": 3972572,
    "check": {
        "ok": true,
        "versions": 3,
        "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": "2026-10-29T15:09:44Z",
            "content": "{\"url\": \"https://kgpolicja.ezamawiajacy.pl/pn/kgpolicja/demand/notice/public/241131/details\", \"buyer\": \"Komenda Główna Policji w Warszawie\", \"title\": \"Materiały eksploatacyjne ( filamenty ) do drukarki 3D BAMBU Lab H2D\", \"region\": \"lodzkie\", \"source\": \"kgpolicja_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"241131\", \"deadline_at\": \"2026-11-04T10:00:00Z\", \"notice_type\": \"Postępowanie wyłączone z PZP\", \"published_at\": \"2026-10-29T15:07:00Z\"}",
            "content_hash": "5dee479ed37a097d4320e8b5385d409a037604b73aedcc07c0663abb3a45ecfb",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "4aceea12d31aa0d046e6cbf2f697b7778a49814209ebe225872bb4dec6165957",
            "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": "2026-10-29T19:45:56Z",
            "content": "{\"url\": \"https://kgpolicja.ezamawiajacy.pl/pn/kgpolicja/demand/notice/public/241131/details\", \"buyer\": \"Komenda Główna Policji w Warszawie\", \"title\": \"Materiały eksploatacyjne ( filamenty ) do drukarki 3D BAMBU Lab H2D\", \"region\": \"lodzkie\", \"source\": \"kgpolicja_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"241131\", \"deadline_at\": \"2026-11-04T10:00:00Z\", \"notice_type\": \"Postępowanie wyłączone z PZP\", \"published_at\": \"2026-10-29T15:07:00Z\", \"procedure_url\": \"https://kgpolicja.ezamawiajacy.pl/pn/kgpolicja/demand/notice/public/241131/details\"}",
            "content_hash": "a170bdd101afb9a3a4099c8e7a58624aff17ed283dfb70c1945e69efab38ccab",
            "prev_hash": "4aceea12d31aa0d046e6cbf2f697b7778a49814209ebe225872bb4dec6165957",
            "hash": "9f34c083f0e536ad2065cd4a938c7f1a3d2be8cfc1626756fd994094b2d02b04",
            "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": "2026-10-29T22:04:29Z",
            "content": "{\"cpv\": \"30125110\", \"url\": \"https://kgpolicja.ezamawiajacy.pl/pn/kgpolicja/demand/notice/public/241131/details\", \"buyer\": \"Komenda Główna Policji w Warszawie\", \"title\": \"Materiały eksploatacyjne ( filamenty ) do drukarki 3D BAMBU Lab H2D\", \"region\": \"lodzkie\", \"source\": \"kgpolicja_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"241131\", \"deadline_at\": \"2026-11-04T10:00:00Z\", \"notice_type\": \"Postępowanie wyłączone z PZP\", \"published_at\": \"2026-10-29T15:07:00Z\", \"procedure_url\": \"https://kgpolicja.ezamawiajacy.pl/pn/kgpolicja/demand/notice/public/241131/details\"}",
            "content_hash": "d6ec6f4f20ce12d1328fe3656b1b8d7122ada3222feaec96f2573c1eba251450",
            "prev_hash": "9f34c083f0e536ad2065cd4a938c7f1a3d2be8cfc1626756fd994094b2d02b04",
            "hash": "f2a1359e48568548769f7eddb9f212141894906614799371a55696d6e5f5f52d",
            "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
            }
        }
    ]
}