{
    "tender_id": 4222450,
    "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": "2026-10-30T21:18:02Z",
            "content": "{\"cpv\": \"30200000\", \"url\": \"https://platformazakupowa.pl/transakcja/1401467\", \"buyer\": \"Wojewódzki Urząd Pracy w Opolu\", \"title\": \"NO.3317.29.2026.EW Dostawa sprzętu komputerowego wraz z akcesoriami dla Wojewódzkiego Urzędu Pracy w Opolu\", \"region\": \"opolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [\"30213300\", \"48000000\", \"30236000\", \"30213100\", \"30231300\", \"30237200\", \"48820000\", \"48823000\"], \"location\": \"Polska\", \"source_id\": \"1401467\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T23:00:00Z\", \"notice_number\": \"1401467\"}",
            "content_hash": "d15311e1e56a7c575efc51384e5790d2d22d6584f9ee1553ad815850a60b30d6",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "11e7005c697083b676ffe2bf96d6b1bb4d6ab3d264c82f95883e565d0509c2fa",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-30T21:45:31Z",
            "content": "{\"cpv\": \"30200000\", \"url\": \"https://platformazakupowa.pl/transakcja/1401467\", \"buyer\": \"Wojewódzki Urząd Pracy w Opolu\", \"title\": \"NO.3317.29.2026.EW Dostawa sprzętu komputerowego wraz z akcesoriami dla Wojewódzkiego Urzędu Pracy w Opolu\", \"region\": \"opolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [\"30213300\", \"48000000\", \"30236000\", \"30213100\", \"30231300\", \"30237200\", \"48820000\", \"48823000\"], \"location\": \"Polska\", \"source_id\": \"1401467\", \"deadline_at\": \"2026-11-09T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T23:00:00Z\", \"notice_number\": \"1401467\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1401467\"}",
            "content_hash": "4bb3ccc91d8c87aae18487dec99939c61479d59167fcb568af0ac3bc4ab1aba1",
            "prev_hash": "11e7005c697083b676ffe2bf96d6b1bb4d6ab3d264c82f95883e565d0509c2fa",
            "hash": "30f3a68e4238c824b95f569a16e8a5a7570840e5fae0b890bd6ec06afbabe79d",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        }
    ]
}