{
    "tender_id": 5203018,
    "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": "2026-11-04T13:48:20Z",
            "content": "{\"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/536997/dostawa-czesci-do-drzwi\", \"buyer\": \"POLREGIO S.A.\", \"title\": \"Dostawa części do drzwi\", \"region\": \"opolskie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"OPOLSKIE\", \"source_id\": \"536997\", \"deadline_at\": \"2026-12-04T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T12:00:00Z\"}",
            "content_hash": "079a9f8a2e754a2c0d822f91f73d38d5d59696ab7654d2fbe254aeb8ff9c01f6",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "50a6e93a59f449db97583fba3e54e5341e5eb29d7d9a8a686928bcbd62035436",
            "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": "2026-11-04T14:45:21Z",
            "content": "{\"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/536997/dostawa-czesci-do-drzwi\", \"buyer\": \"POLREGIO S.A.\", \"title\": \"Dostawa części do drzwi\", \"region\": \"opolskie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"OPOLSKIE\", \"source_id\": \"536997\", \"deadline_at\": \"2026-12-04T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T12:00:00Z\", \"procedure_url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/536997/dostawa-czesci-do-drzwi\"}",
            "content_hash": "ff0df5006770b204aeec4848876b44e1f89e6f62e651d1f427961e3aada9c7aa",
            "prev_hash": "50a6e93a59f449db97583fba3e54e5341e5eb29d7d9a8a686928bcbd62035436",
            "hash": "7943216bdd18de50e698c7665bb60dfd9d8614d75dddf6abf2c0517c16b4c005",
            "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
            }
        }
    ]
}