{
    "tender_id": 3810390,
    "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": "2026-10-28T16:02:47Z",
            "content": "{\"cpv\": \"50232100\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3858050/wynajem-dostawa-montaz-demontaz-iluminacji-swiatecznych-w-sezonie-2026-2027-na-terenie-miasta-katowice\", \"buyer\": \"Miejski Zarząd Ulic i Mostów\", \"title\": \"Wynajem, dostawa, montaż, demontaż iluminacji świątecznych w sezonie 2026-2027 na terenie Miasta Katowice\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3858050\", \"deadline_at\": \"2026-11-04T08:55:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T16:02:48Z\"}",
            "content_hash": "7d7566285be8b53975d371cbb93715da51ccf129e053dfeac8121ef014ebb57c",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "e203455ff26cd28efd271745914ee16bbd20a99148f78a7063bb5a3d73a13920",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-28T17:45:14Z",
            "content": "{\"cpv\": \"50232100\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3858050/wynajem-dostawa-montaz-demontaz-iluminacji-swiatecznych-w-sezonie-2026-2027-na-terenie-miasta-katowice\", \"buyer\": \"Miejski Zarząd Ulic i Mostów\", \"title\": \"Wynajem, dostawa, montaż, demontaż iluminacji świątecznych w sezonie 2026-2027 na terenie Miasta Katowice\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3858050\", \"deadline_at\": \"2026-11-04T08:55:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T16:02:48Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1397995\"}",
            "content_hash": "f68b9ecdc960c44d9e8ca60979f0a0574826f127e30429183980c0d53cfdb97a",
            "prev_hash": "e203455ff26cd28efd271745914ee16bbd20a99148f78a7063bb5a3d73a13920",
            "hash": "35e5976befc16d451c2a0f08e14cd6cfc80e5658b5bc225564392c83c61e675b",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        }
    ]
}