{
    "tender_id": 5225341,
    "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": "2026-11-04T16:57:19Z",
            "content": "{\"cpv\": \"09310000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3a8b-fa38-b729-e2d6-6b000120f13b\", \"buyer\": \"Powiat Stargardzki\", \"title\": \"Zakup energii elektrycznej na potrzeby Powiatu Stargardzkiego\", \"region\": \"zachodniopomorskie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Stargard, zachodniopomorskie\", \"buyer_nip\": \"8542228620\", \"source_id\": \"2026/BZP 00523119/01\", \"deadline_at\": \"2026-11-13T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T15:54:58Z\", \"notice_number\": \"2026/BZP 00523119/01\"}",
            "content_hash": "cb28d92913f080bd1584806c580dcf8def2babbf9e74987562a82c677b6689bf",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "3ff991d025ec169c518785aab5bd0b0e90d6101fb0450a106320aaae01648617",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-04T20:45:28Z",
            "content": "{\"cpv\": \"09310000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3a8b-fa38-b729-e2d6-6b000120f13b\", \"buyer\": \"Powiat Stargardzki\", \"title\": \"Zakup energii elektrycznej na potrzeby Powiatu Stargardzkiego\", \"region\": \"zachodniopomorskie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Stargard, zachodniopomorskie\", \"buyer_nip\": \"8542228620\", \"source_id\": \"2026/BZP 00523119/01\", \"deadline_at\": \"2026-11-13T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T15:54:58Z\", \"notice_number\": \"2026/BZP 00523119/01\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1404226\"}",
            "content_hash": "b31a54791ff26df2a124822ae89d1e20c72ab3f2d3c9253c081402ca7766da0e",
            "prev_hash": "3ff991d025ec169c518785aab5bd0b0e90d6101fb0450a106320aaae01648617",
            "hash": "0c2091e43af654caca65a1a7b357977c376226f3eee1b6681c14dff61b11940e",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        }
    ]
}