{
    "tender_id": 3768052,
    "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": "2026-10-28T13:09:47Z",
            "content": "{\"url\": \"https://swoz.tauron.pl/platform/demand/notice/public/13070893/details\", \"buyer\": \"Usługi Grupa TAURON sp. z o.o.\", \"title\": \"Wykonanie audytu energetycznego Przedsiębiorstwa na potrzeby Usługi Grupa TAURON sp. z o.o.\", \"source\": \"tauron_swoz\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"13070893\", \"deadline_at\": \"2026-11-10T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T13:09:47Z\"}",
            "content_hash": "3e1a9db67837a9ceff1b02db816593912c3e989399c5dc793479c865c3952295",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "d65079e4d869a59416bb715d5d420c8a2036c0937a50ff4be8d940445ed2ebb1",
            "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
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-28T14:45:20Z",
            "content": "{\"url\": \"https://swoz.tauron.pl/platform/demand/notice/public/13070893/details\", \"buyer\": \"Usługi Grupa TAURON sp. z o.o.\", \"title\": \"Wykonanie audytu energetycznego Przedsiębiorstwa na potrzeby Usługi Grupa TAURON sp. z o.o.\", \"source\": \"tauron_swoz\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"13070893\", \"deadline_at\": \"2026-11-10T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T13:09:47Z\", \"procedure_url\": \"https://swoz.tauron.pl/platform/demand/notice/public/13070893/details\"}",
            "content_hash": "45d7af85d1223fddf2d6fb2e53c1168bc5989ef7795b15624486842b81084698",
            "prev_hash": "d65079e4d869a59416bb715d5d420c8a2036c0937a50ff4be8d940445ed2ebb1",
            "hash": "1903d9785bec9dcb7e6b3bf54fe04e84e2309b319073709b5d936a902ebed63a",
            "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
            }
        }
    ]
}