{
    "tender_id": 4955074,
    "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": "2026-11-03T07:55:20Z",
            "content": "{\"cpv\": \"38810000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3868143/wymiana-systemu-automatyki-pomiaru-i-dozowania-chemii-basenowej-w-wcrs-aquasfera-w-olsztynie-przy-al-pilsudskiego-69b\", \"buyer\": \"Ośrodek Sportu i Rekreacji w Olsztynie\", \"title\": \"Wymiana systemu automatyki pomiaru i dozowania chemii basenowej w WCRS Aquasfera w Olsztynie przy al. Piłsudskiego 69b\", \"region\": \"warminsko-mazurskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3868143\", \"deadline_at\": \"2026-11-12T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T07:55:22Z\"}",
            "content_hash": "68126331780ad23e051da00a538b1a537b7304d781c039f63535bd332ea57914",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "789187a79a9592b281749a0be94a1fd8b94ac4e1565f91c99bc6e6b620d7268e",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-03T08:45:32Z",
            "content": "{\"cpv\": \"38810000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3868143/wymiana-systemu-automatyki-pomiaru-i-dozowania-chemii-basenowej-w-wcrs-aquasfera-w-olsztynie-przy-al-pilsudskiego-69b\", \"buyer\": \"Ośrodek Sportu i Rekreacji w Olsztynie\", \"title\": \"Wymiana systemu automatyki pomiaru i dozowania chemii basenowej w WCRS Aquasfera w Olsztynie przy al. Piłsudskiego 69b\", \"region\": \"warminsko-mazurskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3868143\", \"deadline_at\": \"2026-11-12T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T07:55:22Z\", \"procedure_url\": \"https://zamowienia.olsztyn.eu/#/offer/99c3b108-e1ce-4c08-a760-47a4e74e0ca7\"}",
            "content_hash": "26b60e8bfa864d07c8206dc8c940f6ffb62d481cda99144e5581fe1cf10ed33b",
            "prev_hash": "789187a79a9592b281749a0be94a1fd8b94ac4e1565f91c99bc6e6b620d7268e",
            "hash": "7702507dfba21118a64e56025f43106d09f81d2ac8039103fd4b44a84cbeb556",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-05T06:45:54Z",
            "content": "{\"cpv\": \"38810000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3868143/wymiana-systemu-automatyki-pomiaru-i-dozowania-chemii-basenowej-w-wcrs-aquasfera-w-olsztynie-przy-al-pilsudskiego-69b\", \"buyer\": \"Ośrodek Sportu i Rekreacji w Olsztynie\", \"title\": \"Wymiana systemu automatyki pomiaru i dozowania chemii basenowej w WCRS Aquasfera w Olsztynie przy al. Piłsudskiego 69b\", \"region\": \"warminsko-mazurskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3868143\", \"deadline_at\": \"2026-11-12T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T07:55:22Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3868571/wymiana-systemu-automatyki-pomiaru-i-dozowania-chemii-basenowej-w-wcrs-aquasfera-w-olsztynie-przy-al-pilsudskiego-69b\"}",
            "content_hash": "422200c44a82b205a6079d7096379671d9c21c41cc0ad475c41d8180a722b414",
            "prev_hash": "7702507dfba21118a64e56025f43106d09f81d2ac8039103fd4b44a84cbeb556",
            "hash": "57a52e1ebdd95bb1c6615c84b14ad9d013bb5a8d0a741291f4ef884119c0a8c7",
            "actor": null,
            "seal": null
        }
    ]
}