{
    "tender_id": 5127805,
    "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": "2026-11-04T05:44:59Z",
            "content": "{\"cpv\": \"80000000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051807301_na-wykonanie-uslug-korepetycje-w-ramach-Projektu-Rodzina-razem_2026_2.html\", \"buyer\": \"Powiatowe Centrum Pomocy Rodzinie w Sieradzu\", \"title\": \"na wykonanie usług (korepetycje) w ramach Projektu: \\\"Rodzina razem\\\"\", \"region\": \"lodzkie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Sieradz\", \"source_id\": \"20051807301\", \"deadline_at\": \"2026-11-12T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-03T00:00:00Z\"}",
            "content_hash": "a408abf9a8584ba25b21e58d041695745b83abed01bf70c6e5fb5391d331e2b1",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "3973683447572710e5833932956490e295c2743b125cbf111b8603c7482f0ace",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-04T05:45:30Z",
            "content": "{\"cpv\": \"80000000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051807301_na-wykonanie-uslug-korepetycje-w-ramach-Projektu-Rodzina-razem_2026_2.html\", \"buyer\": \"Powiatowe Centrum Pomocy Rodzinie w Sieradzu\", \"title\": \"na wykonanie usług (korepetycje) w ramach Projektu: \\\"Rodzina razem\\\"\", \"region\": \"lodzkie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Sieradz\", \"source_id\": \"20051807301\", \"deadline_at\": \"2026-11-12T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-03T00:00:00Z\", \"procedure_url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3989-4bf0-08f2-e2d6-6b000120d4a3\"}",
            "content_hash": "e35ca8235828623603d6e72e2cf7226d59397d9365015b8ccd42af4ac047b6f5",
            "prev_hash": "3973683447572710e5833932956490e295c2743b125cbf111b8603c7482f0ace",
            "hash": "f6e7fe20a951064daa801912c7428ef41a81c6e524b4a56353991325b5085402",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-04T16:45:47Z",
            "content": "{\"cpv\": \"80000000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051807301_na-wykonanie-uslug-korepetycje-w-ramach-Projektu-Rodzina-razem_2026_2.html\", \"buyer\": \"Powiatowe Centrum Pomocy Rodzinie w Sieradzu\", \"title\": \"na wykonanie usług (korepetycje) w ramach Projektu: \\\"Rodzina razem\\\"\", \"region\": \"lodzkie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Sieradz\", \"source_id\": \"20051807301\", \"deadline_at\": \"2026-11-12T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-03T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3871170/na-wykonanie-uslug-korepetycje-w-ramach-projektu-rodzina-razem-\"}",
            "content_hash": "c5c9641939847311146527867b063aae912e99450288dfff382217040063a95e",
            "prev_hash": "f6e7fe20a951064daa801912c7428ef41a81c6e524b4a56353991325b5085402",
            "hash": "ddb6667a56569392ae59fec43fcb8102c682db254115aa2d1ad5c58a89589d91",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        }
    ]
}