{
    "tender_id": 4049366,
    "check": {
        "ok": true,
        "versions": 5,
        "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": "2026-10-30T00:11:20Z",
            "content": "{\"cpv\": \"09331200\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296410\", \"buyer\": \"Gotowe Dachy sp. z o.o.\", \"title\": \"03/2026 Dostawa instalacji fotowoltaicznej i pompy ciepła\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Kijowiec, wielkopolskie\", \"source_id\": \"296410\", \"deadline_at\": \"2026-11-05T23:59:59Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T00:00:00Z\"}",
            "content_hash": "dd88cca196d9398db4bf6892b8ccb7cbb8d139e1f3d2992c58e506c7abc68dc0",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "679f99ddbe486f35f1392f4e6063a9b8f4e3682adc4ff9429ee173928517171f",
            "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
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-30T01:45:38Z",
            "content": "{\"cpv\": \"09331200\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296410\", \"buyer\": \"Gotowe Dachy sp. z o.o.\", \"title\": \"03/2026 Dostawa instalacji fotowoltaicznej i pompy ciepła\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Kijowiec, wielkopolskie\", \"source_id\": \"296410\", \"deadline_at\": \"2026-11-05T23:59:59Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T00:00:00Z\", \"procedure_url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296410\"}",
            "content_hash": "f461cb18ab170702e00551a6763201b839c8863310282082a2d23c5e92f5c9af",
            "prev_hash": "679f99ddbe486f35f1392f4e6063a9b8f4e3682adc4ff9429ee173928517171f",
            "hash": "ed53055bc7df99f9581145dbd17f12a40a7c3a35afc5e9d07119f488cfe6a98b",
            "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
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-30T02:45:33Z",
            "content": "{\"cpv\": \"09331200\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296410\", \"buyer\": \"Gotowe Dachy sp. z o.o.\", \"title\": \"03/2026 Dostawa instalacji fotowoltaicznej i pompy ciepła\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Kijowiec, wielkopolskie\", \"source_id\": \"296410\", \"deadline_at\": \"2026-11-05T23:59:59Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861758/03-2026-dostawa-instalacji-fotowoltaicznej-i-pompy-ciepla\"}",
            "content_hash": "49453d7e38978da88975152854be09a4d94a313fe6f8c20b1eebdebc011c31a1",
            "prev_hash": "ed53055bc7df99f9581145dbd17f12a40a7c3a35afc5e9d07119f488cfe6a98b",
            "hash": "090f29ba5fff64be0593d112de99d9c7d36321d7bde954cb63f697fa2ad4fa6d",
            "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
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-10-31T04:45:25Z",
            "content": "{\"cpv\": \"09331200\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296410\", \"buyer\": \"Gotowe Dachy sp. z o.o.\", \"title\": \"03/2026 Dostawa instalacji fotowoltaicznej i pompy ciepła\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Kijowiec, wielkopolskie\", \"source_id\": \"296410\", \"deadline_at\": \"2026-11-05T23:59:59Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T00:00:00Z\", \"procedure_url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296410\"}",
            "content_hash": "f461cb18ab170702e00551a6763201b839c8863310282082a2d23c5e92f5c9af",
            "prev_hash": "090f29ba5fff64be0593d112de99d9c7d36321d7bde954cb63f697fa2ad4fa6d",
            "hash": "c751c6f3d79ba178cc676b073a85eba158d8c04033a24cf58207f98c9efbd03c",
            "actor": null,
            "seal": null
        },
        {
            "version": 5,
            "recorded_at": "2026-10-31T10:45:54Z",
            "content": "{\"cpv\": \"09331200\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296410\", \"buyer\": \"Gotowe Dachy sp. z o.o.\", \"title\": \"03/2026 Dostawa instalacji fotowoltaicznej i pompy ciepła\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Kijowiec, wielkopolskie\", \"source_id\": \"296410\", \"deadline_at\": \"2026-11-05T23:59:59Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861758/03-2026-dostawa-instalacji-fotowoltaicznej-i-pompy-ciepla\"}",
            "content_hash": "49453d7e38978da88975152854be09a4d94a313fe6f8c20b1eebdebc011c31a1",
            "prev_hash": "c751c6f3d79ba178cc676b073a85eba158d8c04033a24cf58207f98c9efbd03c",
            "hash": "79e535d78b0a83b61be6c5674b27e51752d97af9ebda983313e4d2ed037847b5",
            "actor": null,
            "seal": null
        }
    ]
}