{
    "tender_id": 3978257,
    "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": "2026-10-29T15:28:33Z",
            "content": "{\"cpv\": \"90610000\", \"url\": \"https://zptp.ezamawiajacy.pl/pn/zptp/demand/notice/public/241115/details\", \"buyer\": \"Zarząd Praskich Terenów Publicznych w Dzielnicy Praga Północ\", \"title\": \"Bieżące utrzymanie zieleni w pasach drogowych ulic gminnych, na terenie Dzielnicy Praga-Północ m.st. Warszawy\", \"source\": \"zptp_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"241115\", \"deadline_at\": \"2026-11-30T10:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T14:28:00Z\"}",
            "content_hash": "da79f4183c5aefba6618f12e0544f8cb1c9899b9a2ed4da7b7af743c14d9b442",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "8c91ed15e0c146286f290d13c4dcfae6ed7de7dba97987057fe8acfe87d5fddb",
            "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": "2026-10-29T15:45:25Z",
            "content": "{\"cpv\": \"90610000\", \"url\": \"https://zptp.ezamawiajacy.pl/pn/zptp/demand/notice/public/241115/details\", \"buyer\": \"Zarząd Praskich Terenów Publicznych w Dzielnicy Praga Północ\", \"title\": \"Bieżące utrzymanie zieleni w pasach drogowych ulic gminnych, na terenie Dzielnicy Praga-Północ m.st. Warszawy\", \"source\": \"zptp_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"241115\", \"deadline_at\": \"2026-11-30T10:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T14:28:00Z\", \"procedure_url\": \"https://zptp.ezamawiajacy.pl/pn/zptp/demand/notice/public/241115/details\"}",
            "content_hash": "8c2d04de430513b2dd9264db7cfa8fba9a12da4fa0b2d9b918a57a77c0bb2f17",
            "prev_hash": "8c91ed15e0c146286f290d13c4dcfae6ed7de7dba97987057fe8acfe87d5fddb",
            "hash": "96f5ac1574265f4dc37b4b8ae310d2e68163d2dff5d894f3980193a98a39c603",
            "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
            }
        }
    ]
}