{
    "tender_id": 5384594,
    "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": "2026-11-05T10:14:57Z",
            "content": "{\"cpv\": \"79300000\", \"url\": \"https://km.eb2b.com.pl/open-preview-auction.html/537040/zakup-baterii-do-radiotelefonow\", \"buyer\": \"KOLEJE MAZOWIECKIE - KM SP. Z O.O.\", \"title\": \"Zakup baterii do radiotelefonów\", \"region\": \"mazowieckie\", \"source\": \"km_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"MAZOWIECKIE\", \"source_id\": \"537040\", \"deadline_at\": \"2026-11-09T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-05T07:00:00Z\"}",
            "content_hash": "d997a7e9f1291bd5c84970653545a6917cd219aeeac42f34cd8dc390854f671c",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "3df66e6a05d1b3b8f56a2c23d0c7a9b1732735c9e3bdd38881c89c9a8973b741",
            "actor": null,
            "seal": {
                "id": 13,
                "digest": "88eaa47ed54f178cca07f94ec9f0c5d48c105c008cf249a9e53ac4ca63161903",
                "file": "https://tenderiq.pl/rejestr/pieczec-13.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-13.txt.ots",
                "bitcoin_block": 974729
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-05T10:45:44Z",
            "content": "{\"cpv\": \"79300000\", \"url\": \"https://km.eb2b.com.pl/open-preview-auction.html/537040/zakup-baterii-do-radiotelefonow\", \"buyer\": \"KOLEJE MAZOWIECKIE - KM SP. Z O.O.\", \"title\": \"Zakup baterii do radiotelefonów\", \"region\": \"mazowieckie\", \"source\": \"km_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"MAZOWIECKIE\", \"source_id\": \"537040\", \"deadline_at\": \"2026-11-09T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-05T07:00:00Z\", \"procedure_url\": \"https://km.eb2b.com.pl/open-preview-auction.html/537040/zakup-baterii-do-radiotelefonow\"}",
            "content_hash": "451ac48062a1db8263c671546acbcdbb45471245bc8ba1050716976abb4f29d9",
            "prev_hash": "3df66e6a05d1b3b8f56a2c23d0c7a9b1732735c9e3bdd38881c89c9a8973b741",
            "hash": "ff2d4c134af2d2c1a78b0b0832d4634e1319b2098007fd60fe0113756d42f6b5",
            "actor": null,
            "seal": {
                "id": 13,
                "digest": "88eaa47ed54f178cca07f94ec9f0c5d48c105c008cf249a9e53ac4ca63161903",
                "file": "https://tenderiq.pl/rejestr/pieczec-13.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-13.txt.ots",
                "bitcoin_block": 974729
            }
        }
    ]
}