{
    "tender_id": 3694297,
    "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": "2026-10-28T00:56:10Z",
            "content": "{\"cpv\": \"31320000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/747549-2026\", \"buyer\": \"PGE Dystrybucja S.A.\", \"title\": \"Polska – Kable energetyczne – Dostawa przewodów elektroenergetycznych nN i SN dla PGE Dystrybucja S.A. Oddział Łódź w podziale na 3 części\", \"region\": \"lodzkie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL712, POL, PL712, PL712, PL712, POL, POL, POL\", \"buyer_nip\": \"9462593855\", \"source_id\": \"747549-2026\", \"deadline_at\": \"2026-12-02T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-28T01:00:00Z\"}",
            "content_hash": "57ba43be10fcc0ed9251c6c5a7074a175e63d5f969965791afa7a34629da4109",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "9ca9b99f4a3ae21b87c021bbae5af8561825b3cbaa986bd46328ad2192e12414",
            "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": "2026-10-29T04:45:42Z",
            "content": "{\"cpv\": \"31320000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/747549-2026\", \"buyer\": \"PGE Dystrybucja S.A.\", \"title\": \"Polska – Kable energetyczne – Dostawa przewodów elektroenergetycznych nN i SN dla PGE Dystrybucja S.A. Oddział Łódź w podziale na 3 części\", \"region\": \"lodzkie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL712, POL, PL712, PL712, PL712, POL, POL, POL\", \"buyer_nip\": \"9462593855\", \"source_id\": \"747549-2026\", \"deadline_at\": \"2026-12-02T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-28T01:00:00Z\", \"procedure_url\": \"https://ted.europa.eu/pl/notice/-/detail/747549-2026\"}",
            "content_hash": "a80dfa853e03594d140585a3c4d6c3b2866ac75c69f790b97f3af182c6c2a8b6",
            "prev_hash": "9ca9b99f4a3ae21b87c021bbae5af8561825b3cbaa986bd46328ad2192e12414",
            "hash": "a15bb2997df981f2a85980552aed94302bd8ad469e5cc37da2725507c613eb2b",
            "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": 3,
            "recorded_at": "2026-10-29T05:45:36Z",
            "content": "{\"cpv\": \"31320000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/747549-2026\", \"buyer\": \"PGE Dystrybucja S.A.\", \"title\": \"Polska – Kable energetyczne – Dostawa przewodów elektroenergetycznych nN i SN dla PGE Dystrybucja S.A. Oddział Łódź w podziale na 3 części\", \"region\": \"lodzkie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL712, POL, PL712, PL712, PL712, POL, POL, POL\", \"buyer_nip\": \"9462593855\", \"source_id\": \"747549-2026\", \"deadline_at\": \"2026-12-02T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-28T01:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3859044/dostawa-przewodow-elektroenergetycznych-nn-i-sn-dla-pge-dystrybucja-s-a-oddzial-odz-w-podziale-na-3-czesci-\"}",
            "content_hash": "8a5cb327751b4b8ac208517099c9f7f659a35f1405b6ab1fbaeba3df860ade01",
            "prev_hash": "a15bb2997df981f2a85980552aed94302bd8ad469e5cc37da2725507c613eb2b",
            "hash": "4f854bda0a598e577cbafe49b2cc189555929cd98225f5230e4843d98e8a7942",
            "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
            }
        }
    ]
}