{
    "tender_id": 3359893,
    "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": "2026-10-26T09:36:47Z",
            "content": "{\"cpv\": \"71000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/739937-2026\", \"buyer\": \"Gemeinde Bohmstedt\", \"title\": \"Niemcy – Usługi architektoniczne, budowlane, inżynieryjne i kontrolne – Neubau eines Feuerwehrgerätehauses - Technische Aurüstung\", \"source\": \"ted_deu\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"DEF07, DEU, DEF07, DEU\", \"buyer_nip\": \"0467191920\", \"source_id\": \"739937-2026\", \"deadline_at\": \"2026-11-23T08:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "3378abd31fb248a57a543b9187b19f4c5ae682a05894e529ecdc57bfd5e61c70",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "74a7138f3ce9a974f9bad976e8441ad5f8dd2121793034b7ababc3b7aa8023e3",
            "actor": null,
            "seal": {
                "id": 3,
                "digest": "1119fd2ade60dc88ac794742ff488b9486e8a488f9d77cc6d6a9444474dc1c77",
                "file": "https://tenderiq.pl/rejestr/pieczec-3.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-3.txt.ots",
                "bitcoin_block": 973309
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-26T23:16:51Z",
            "content": "{\"cpv\": \"71000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/739937-2026\", \"buyer\": \"Gemeinde Bohmstedt\", \"title\": \"Niemcy – Usługi architektoniczne, budowlane, inżynieryjne i kontrolne – Budowa remizy straż pożarnej – Wyposażenie techniczne\", \"source\": \"ted_deu\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"DEF07, DEU, DEF07, DEU\", \"buyer_nip\": \"0467191920\", \"source_id\": \"739937-2026\", \"deadline_at\": \"2026-11-23T08:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "8e626fbe4a84325fc57d66958aa241cf22277cd561b29d0f0cc17b69df3cd609",
            "prev_hash": "74a7138f3ce9a974f9bad976e8441ad5f8dd2121793034b7ababc3b7aa8023e3",
            "hash": "8bc2fa83a952ccf1ddccc82262d6b9269d41b7e5cadd2100bc8c2dfd6b3664c6",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        }
    ]
}