{
    "tender_id": 1149693,
    "check": {
        "ok": true,
        "versions": 3,
        "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": "2026-10-24T13:58:39Z",
            "content": "{\"cpv\": \"24965000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3828643/preparat-enzymatyczny-dla-trzody-chlewnej-z-ksylanaza-w-formie-sypkiej\", \"buyer\": \"Instytut Zootechniki Państwowy Instytut Badawczy 31-047 Kraków, ul. Sarego 2 Zakład Doświadczalny Pawłowice\", \"title\": \"Preparat enzymatyczny dla trzody chlewnej z ksylanazą w formie sypkiej\", \"region\": \"malopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3828643\", \"deadline_at\": \"2026-11-05T07:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-13T03:32:23Z\", \"procedure_url\": \"https://ted.europa.eu/pl/notice/-/detail/688883-2026\"}",
            "content_hash": "b48b074db6a6c028a6e2de07856511f5d3be96253a9741744d04831e74b0f61a",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "1c954dcb2104bdd95c0ec983b3e15f82de3da7460da8c8a6082e618d3552f58f",
            "actor": null,
            "seal": {
                "id": 1,
                "digest": "25686b149cfd327de10f8db2827c82e22b0d6a884d716cd11b36328364d6937d",
                "file": "https://tenderiq.pl/rejestr/pieczec-1.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-1.txt.ots",
                "bitcoin_block": 972985
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-26T23:35:42Z",
            "content": "{\"cpv\": \"24965000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3828643/preparat-enzymatyczny-dla-trzody-chlewnej-z-ksylanaza-w-formie-sypkiej\", \"buyer\": \"Instytut Zootechniki Państwowy Instytut Badawczy 31-047 Kraków, ul. Sarego 2 Zakład Doświadczalny Pawłowice\", \"title\": \"Preparat enzymatyczny dla trzody chlewnej z ksylanazą w formie sypkiej\", \"region\": \"malopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3828643\", \"deadline_at\": \"2026-11-05T07:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-13T03:32:23Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3828643/preparat-enzymatyczny-dla-trzody-chlewnej-z-ksylanaza-w-formie-sypkiej\"}",
            "content_hash": "64773c82db764302628c1884bb77092942eca6baf093890a69df9e2fd43cc05f",
            "prev_hash": "1c954dcb2104bdd95c0ec983b3e15f82de3da7460da8c8a6082e618d3552f58f",
            "hash": "5f0eba74380d885c8c3bb6100448bfbbb04272f9b57471d1b846f3beef5eb91e",
            "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
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-27T11:34:14Z",
            "content": "{\"cpv\": \"24965000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3828643/preparat-enzymatyczny-dla-trzody-chlewnej-z-ksylanaza-w-formie-sypkiej\", \"buyer\": \"Instytut Zootechniki Państwowy Instytut Badawczy 31-047 Kraków, ul. Sarego 2 Zakład Doświadczalny Pawłowice\", \"title\": \"Preparat enzymatyczny dla trzody chlewnej z ksylanazą w formie sypkiej\", \"region\": \"malopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3828643\", \"deadline_at\": \"2026-11-05T07:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-13T03:32:23Z\", \"procedure_url\": \"https://ted.europa.eu/pl/notice/-/detail/688883-2026\"}",
            "content_hash": "b48b074db6a6c028a6e2de07856511f5d3be96253a9741744d04831e74b0f61a",
            "prev_hash": "5f0eba74380d885c8c3bb6100448bfbbb04272f9b57471d1b846f3beef5eb91e",
            "hash": "49ddba1caf46f69e4709c70f8a0f2e00deb784f076e47d9d19361fd7b90a78b0",
            "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
            }
        }
    ]
}