{
    "tender_id": 4022297,
    "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": "2026-10-29T19:39:48Z",
            "content": "{\"cpv\": \"77200000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860815/wykonywanie-uslug-z-zakresu-gospodarki-lesnej-na-terenie-nadlesnictwa-ciechanow-w-roku-2027\", \"buyer\": \"Nadleśnictwo Ciechanów\", \"title\": \"Wykonywanie usług z zakresu gospodarki leśnej na terenie Nadleśnictwa Ciechanów w roku 2027\", \"region\": \"mazowieckie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3860815\", \"deadline_at\": \"2026-11-23T08:30:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T19:39:48Z\"}",
            "content_hash": "d84f31147c439844ab5adadca4a4e6124a940db3d8a58e23b40744c395c83733",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "c492e41a5cdac985da5c2353a47b4910508fb639e0842ee563ac848bf2f05581",
            "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": "2026-10-29T19:46:03Z",
            "content": "{\"cpv\": \"77200000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860815/wykonywanie-uslug-z-zakresu-gospodarki-lesnej-na-terenie-nadlesnictwa-ciechanow-w-roku-2027\", \"buyer\": \"Nadleśnictwo Ciechanów\", \"title\": \"Wykonywanie usług z zakresu gospodarki leśnej na terenie Nadleśnictwa Ciechanów w roku 2027\", \"region\": \"mazowieckie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3860815\", \"deadline_at\": \"2026-11-23T08:30:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T19:39:48Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1398675\"}",
            "content_hash": "6471cc271aedd9111b4f267545366a924ac0eb6bb5ac932ef971747726de0e48",
            "prev_hash": "c492e41a5cdac985da5c2353a47b4910508fb639e0842ee563ac848bf2f05581",
            "hash": "404d2a4be7220e48f7211b9d60e43dec5467c17962c79bbe7be7ebe993e1d0f5",
            "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
            }
        }
    ]
}