{
    "tender_id": 4222378,
    "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": "2026-10-30T21:11:08Z",
            "content": "{\"cpv\": \"33100000\", \"url\": \"https://platformazakupowa.pl/transakcja/1400702\", \"buyer\": \"Miejski Ośrodek Sportu I Rekreacji W Mikołowie\", \"title\": \"ZO.24.2026.UM.MOSIR_Zakup specjalistycznego sprzętu na potrzeby realizacji zadań z zakresu OLiOC zakup defibrylatora AED wraz z akcesoriami\", \"region\": \"slaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400702\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T23:00:00Z\", \"notice_number\": \"1400702\"}",
            "content_hash": "68752e99f0ff0888f81f08a56071db410367b575efcc769a8b92cba79f2981c1",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "52f45f3141781fc482f2c04bf77e4bb980caa7d59379e3b358f6a3c7541ca6e4",
            "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\": \"33100000\", \"url\": \"https://platformazakupowa.pl/transakcja/1400702\", \"buyer\": \"Miejski Ośrodek Sportu I Rekreacji W Mikołowie\", \"title\": \"ZO.24.2026.UM.MOSIR_Zakup specjalistycznego sprzętu na potrzeby realizacji zadań z zakresu OLiOC zakup defibrylatora AED wraz z akcesoriami\", \"region\": \"slaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400702\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T23:00:00Z\", \"notice_number\": \"1400702\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1400702\"}",
            "content_hash": "d19e4cbee2d305ac08cd082ceda1b7ea40706b5f897db95670dcc00fdd032e6f",
            "prev_hash": "52f45f3141781fc482f2c04bf77e4bb980caa7d59379e3b358f6a3c7541ca6e4",
            "hash": "91716848a3f680e70021e1a63c3ee139120448afde7199324aa932ba3f6de016",
            "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
            }
        }
    ]
}