{
    "tender_id": 2584807,
    "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": "2026-10-24T13:58:39Z",
            "content": "{\"cpv\": \"65130000\", \"url\": \"https://enea-wytwarzanie.logintrade.net/zapytania_email,1669756,0b276ff83ac98d590cd9aa7966417806.html\", \"buyer\": \"Enea Wytwarzanie\", \"title\": \"Dostawa i wymiana nowych, nieużywanych i nieregenerowanych złóż filtracyjnych w filtrach wody pitnej, tj. w odżelaziaczu i odmanganiaczu w Enea Wytwarzanie sp. z o.o. w Świerżach Górnych - NLZ-FD.2110.47.2026\", \"region\": \"mazowieckie\", \"source\": \"logintrade_open\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"mazowieckie\", \"source_id\": \"1669756-0b276ff83ac98d590cd9aa7966417806\", \"deadline_at\": \"2026-10-28T22:59:59Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-21T10:56:37Z\", \"procedure_url\": \"https://enea-wytwarzanie.logintrade.net/zapytania_email,1669756,0b276ff83ac98d590cd9aa7966417806.html\"}",
            "content_hash": "e0a1298f3b6dd21014696e471e9fead61422328e63151d948a0d293a5fc097ea",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "e1867938d3098c62ea6523293cdabebced515ebafcedfe1c1eda9853d6cc5612",
            "actor": null,
            "seal": {
                "id": 1,
                "digest": "25686b149cfd327de10f8db2827c82e22b0d6a884d716cd11b36328364d6937d",
                "file": "https://tenderiq.pl/rejestr/pieczec-1.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-1.txt.ots",
                "bitcoin_block": 972985
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-28T11:45:31Z",
            "content": "{\"cpv\": \"65130000\", \"url\": \"https://enea-wytwarzanie.logintrade.net/zapytania_email,1669756,0b276ff83ac98d590cd9aa7966417806.html\", \"buyer\": \"Enea Wytwarzanie\", \"title\": \"Dostawa i wymiana nowych, nieużywanych i nieregenerowanych złóż filtracyjnych w filtrach wody pitnej, tj. w odżelaziaczu i odmanganiaczu w Enea Wytwarzanie sp. z o.o. w Świerżach Górnych - NLZ-FD.2110.47.2026\", \"region\": \"mazowieckie\", \"source\": \"logintrade_open\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"mazowieckie\", \"source_id\": \"1669756-0b276ff83ac98d590cd9aa7966417806\", \"deadline_at\": \"2026-10-28T22:59:59Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-21T10:56:37Z\"}",
            "content_hash": "de131bd7f88c9eb37a51a89f24ccd9593fdb150e61d64a0c82ded341137bc4b1",
            "prev_hash": "e1867938d3098c62ea6523293cdabebced515ebafcedfe1c1eda9853d6cc5612",
            "hash": "f672c5c7c53d890e057282b9e20c01d7d59c2a49bfa15e1ff8bfe3e77112a9d2",
            "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
            }
        }
    ]
}