{
    "tender_id": 3359864,
    "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": "2026-10-26T09:36:43Z",
            "content": "{\"cpv\": \"71200000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/739699-2026\", \"buyer\": \"Stadt Bad Kötzting\", \"title\": \"Niemcy – Usługi architektoniczne i podobne – Umbau und Erweiterung der Grund- und Mittelschule Bad Kötzting - Planungsleistungen nach § 34 Gebäude und Innenräume HOAI 2021\", \"source\": \"ted_deu\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"DE235, DEU, DE235, DEU\", \"source_id\": \"739699-2026\", \"deadline_at\": \"2026-11-23T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "bd18baa261e8a42700751a1a2a09f0c50ec402e480be6656bff4095ddfeed904",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "9383dc29b486b161adf450fbad04274c48c56af341ea51b85a15ea4e15eb38ab",
            "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": "2026-10-26T23:16:47Z",
            "content": "{\"cpv\": \"71200000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/739699-2026\", \"buyer\": \"Stadt Bad Kötzting\", \"title\": \"Niemcy – Usługi architektoniczne i podobne – Adaptacja i rozbudowa Szkoły Podstawowej i Gimnazjalnej w Bad Kötzting – Usługi planistyczne zgodnie z § 34 Budowa i Przestrzenie Wewnętrzne HOAI 2021\", \"source\": \"ted_deu\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"DE235, DEU, DE235, DEU\", \"source_id\": \"739699-2026\", \"deadline_at\": \"2026-11-23T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "45c3ae9b4548ec76118b31ba39343dc3f962e0d8d79d8c3580a358470d234851",
            "prev_hash": "9383dc29b486b161adf450fbad04274c48c56af341ea51b85a15ea4e15eb38ab",
            "hash": "dddfab4f4c3cc2d3138eb7b0403b0b01fcd03fd5237fbd93577a0a43f531801d",
            "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
            }
        }
    ]
}