{
    "tender_id": 6191875,
    "check": {
        "ok": true,
        "versions": 2,
        "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": "2026-11-09T20:41:16Z",
            "content": "{\"cpv\": \"79810000\", \"url\": \"https://platformazakupowa.pl/transakcja/1406599\", \"buyer\": \"Szkoła Policji w Słupsku\", \"title\": \"Kalendarze trójdzielne ścienne\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1406599\", \"deadline_at\": \"2026-11-16T11:18:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-09T11:19:00Z\", \"notice_number\": \"1406599\"}",
            "content_hash": "3555444bf23e59171f0d98d57140f2258165f5fa9a0889f907fff005ae47625d",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "7c5a035cef406e8d64b2dfc15ce54b574885589a5dbe4d913eba431e429448e4",
            "actor": null,
            "seal": {
                "id": 17,
                "digest": "ff8cb03aa08e7c772155df1b20fd8d51c1cab7cd026d5e31aa3d74d6ab70c7b2",
                "file": "https://tenderiq.pl/rejestr/pieczec-17.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-17.txt.ots",
                "bitcoin_block": 975226
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-09T20:45:39Z",
            "content": "{\"cpv\": \"79810000\", \"url\": \"https://platformazakupowa.pl/transakcja/1406599\", \"buyer\": \"Szkoła Policji w Słupsku\", \"title\": \"Kalendarze trójdzielne ścienne\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1406599\", \"deadline_at\": \"2026-11-16T11:18:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-09T11:19:00Z\", \"notice_number\": \"1406599\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3884492/kalendarze-trojdzielne-scienne\"}",
            "content_hash": "77e618545c94503ec3e80f81bb649b7571a4231d9dab2a5618168a7051a76017",
            "prev_hash": "7c5a035cef406e8d64b2dfc15ce54b574885589a5dbe4d913eba431e429448e4",
            "hash": "e1dc3c94aff21302a7bd5721b0074e9a77717efca8e4425ed1266a3ce9215de6",
            "actor": null,
            "seal": {
                "id": 17,
                "digest": "ff8cb03aa08e7c772155df1b20fd8d51c1cab7cd026d5e31aa3d74d6ab70c7b2",
                "file": "https://tenderiq.pl/rejestr/pieczec-17.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-17.txt.ots",
                "bitcoin_block": 975226
            }
        }
    ]
}