{
    "tender_id": 3397267,
    "check": {
        "ok": true,
        "versions": 4,
        "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": "2026-10-26T13:17:19Z",
            "content": "{\"cpv\": \"50730000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3853440/dostawa-filtrow-do-wentylacji-mechanicznej\", \"buyer\": \"Podkarpackie Centrum Medyczne w Rzeszowie SPZOZ\", \"title\": \"Dostawa filtrów do wentylacji mechanicznej\", \"region\": \"podkarpackie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3853440\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-26T13:17:19Z\"}",
            "content_hash": "2983caf7e8def8930b00075b978ed7b6f3ea7d5d600f29b2ab5d3496adc4ef3f",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "c3889d5a6f8e03c69187cfae94515cb9234adb8d382ce00807ae8c227dd101a2",
            "actor": null,
            "seal": {
                "id": 3,
                "digest": "1119fd2ade60dc88ac794742ff488b9486e8a488f9d77cc6d6a9444474dc1c77",
                "file": "https://tenderiq.pl/rejestr/pieczec-3.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-3.txt.ots",
                "bitcoin_block": 973309
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-26T23:36:18Z",
            "content": "{\"cpv\": \"50730000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3853440/dostawa-filtrow-do-wentylacji-mechanicznej\", \"buyer\": \"Podkarpackie Centrum Medyczne w Rzeszowie SPZOZ\", \"title\": \"Dostawa filtrów do wentylacji mechanicznej\", \"region\": \"podkarpackie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3853440\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-26T13:17:19Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3853440/dostawa-filtrow-do-wentylacji-mechanicznej\"}",
            "content_hash": "35b0f1c05811d1e061e41bcd0c5c7aa3a0664f3c4d9813ab789703b8e73dbdac",
            "prev_hash": "c3889d5a6f8e03c69187cfae94515cb9234adb8d382ce00807ae8c227dd101a2",
            "hash": "914c66e54abf3013adeedd5f6c5e4252641dd95969513e3f499085656f792d93",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-28T22:46:02Z",
            "content": "{\"cpv\": \"50730000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3853440/dostawa-filtrow-do-wentylacji-mechanicznej\", \"buyer\": \"Podkarpackie Centrum Medyczne w Rzeszowie SPZOZ\", \"title\": \"Dostawa filtrów do wentylacji mechanicznej\", \"region\": \"podkarpackie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3853440\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-26T13:17:19Z\", \"procedure_url\": \"https://pcm.ezamawiajacy.pl/pn/pcm/demand/notice/public/240280/details\"}",
            "content_hash": "6accf09ad9ee9274e7fe5f5f7c2f6b4a7ce466f5f9f6097087d3d5abb4f19648",
            "prev_hash": "914c66e54abf3013adeedd5f6c5e4252641dd95969513e3f499085656f792d93",
            "hash": "0462fe5acd7c9e8e96dafd9a0ba19966dc8df3a31f518584737f9abad85dc7d3",
            "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": 4,
            "recorded_at": "2026-10-29T05:45:52Z",
            "content": "{\"cpv\": \"50730000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3853440/dostawa-filtrow-do-wentylacji-mechanicznej\", \"buyer\": \"Podkarpackie Centrum Medyczne w Rzeszowie SPZOZ\", \"title\": \"Dostawa filtrów do wentylacji mechanicznej\", \"region\": \"podkarpackie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3853440\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-26T13:17:19Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3853440/dostawa-filtrow-do-wentylacji-mechanicznej\"}",
            "content_hash": "35b0f1c05811d1e061e41bcd0c5c7aa3a0664f3c4d9813ab789703b8e73dbdac",
            "prev_hash": "0462fe5acd7c9e8e96dafd9a0ba19966dc8df3a31f518584737f9abad85dc7d3",
            "hash": "f191d5e14ccd3b4f9c8d2dc674d04a6de41daa2331069277b353865479c6513d",
            "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
            }
        }
    ]
}