{
    "tender_id": 3920612,
    "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": "2026-10-29T08:46:11Z",
            "content": "{\"cpv\": \"72611000\", \"url\": \"https://nask.eb2b.com.pl/open-preview-auction.html/534395/usluga-wsparcia-technicznego-dla-posiadanych-urzadzen-sieciowych-firmy-fortinet\", \"buyer\": \"NAUKOWA I AKADEMICKA SIEĆ KOMPUTEROWA - PAŃSTWOWY INSTYTUT BADAWCZY\", \"title\": \"Usługa wsparcia technicznego dla posiadanych urządzeń sieciowych firmy Fortinet\", \"source\": \"nask_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"534395\", \"deadline_at\": \"2026-11-27T10:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:30:00Z\"}",
            "content_hash": "d36d135be7f40a0f5c07bf9c285c2edbc16eb96ce1e4fbfe8658ed13cf428577",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2c9b2269e048881f7ce833670ed7b2630b9a9e0b8d88d488345c81a3fe26d62d",
            "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": "2026-10-29T09:45:32Z",
            "content": "{\"cpv\": \"72611000\", \"url\": \"https://nask.eb2b.com.pl/open-preview-auction.html/534395/usluga-wsparcia-technicznego-dla-posiadanych-urzadzen-sieciowych-firmy-fortinet\", \"buyer\": \"NAUKOWA I AKADEMICKA SIEĆ KOMPUTEROWA - PAŃSTWOWY INSTYTUT BADAWCZY\", \"title\": \"Usługa wsparcia technicznego dla posiadanych urządzeń sieciowych firmy Fortinet\", \"source\": \"nask_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"534395\", \"deadline_at\": \"2026-11-27T10:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:30:00Z\", \"procedure_url\": \"https://nask.eb2b.com.pl/open-preview-auction.html/534395/usluga-wsparcia-technicznego-dla-posiadanych-urzadzen-sieciowych-firmy-fortinet\"}",
            "content_hash": "85ff4ada943bdb08efcbdeb09626f605624365feaa1e85aa834a5b4fe88142ad",
            "prev_hash": "2c9b2269e048881f7ce833670ed7b2630b9a9e0b8d88d488345c81a3fe26d62d",
            "hash": "1b2c0f5cf937d6d7213290246799ffa84f5addc8a7ee5c8f54de4746fc2aa8a5",
            "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
            }
        }
    ]
}