{
    "tender_id": 4138835,
    "check": {
        "ok": true,
        "versions": 6,
        "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": "2026-10-30T13:43:54Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3863654/srodki-czystosci\", \"buyer\": \"MIEJSKI ZESPÓŁ OBSŁUGI SZKÓŁ I PRZEDSZKOLI\", \"title\": \"Środki czystości\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3863654\", \"deadline_at\": \"2026-11-04T10:50:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:54Z\"}",
            "content_hash": "2312775bb3d577f996f7dfde5936ea8e8ec7af1586a7ab69268aaabcd13ac810",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "41653e668c58792ffefc7fed6276d51578bfbc0c0b901162c5388a9b1c2f19c7",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-30T13:45:39Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3863654/srodki-czystosci\", \"buyer\": \"MIEJSKI ZESPÓŁ OBSŁUGI SZKÓŁ I PRZEDSZKOLI\", \"title\": \"Środki czystości\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3863654\", \"deadline_at\": \"2026-11-04T10:50:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:54Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860557/srodki-czystosci\"}",
            "content_hash": "f369e246adc938a510255557534dcb8a16151a3f05d8935620421201d6e28442",
            "prev_hash": "41653e668c58792ffefc7fed6276d51578bfbc0c0b901162c5388a9b1c2f19c7",
            "hash": "fff4d2882c7c5f73bfacd0a82a1ec8c434e3b48af70d02a9671f76027aee2486",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-30T23:33:07Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3863654/srodki-czystosci\", \"buyer\": \"MIEJSKI ZESPÓŁ OBSŁUGI SZKÓŁ I PRZEDSZKOLI\", \"title\": \"Środki czystości\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3863654\", \"deadline_at\": \"2026-11-04T10:50:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:54Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3863654/srodki-czystosci\"}",
            "content_hash": "1d9fb60d51a24cbfec329ea583e0a674de0c649814f2d293973774ada76d1803",
            "prev_hash": "fff4d2882c7c5f73bfacd0a82a1ec8c434e3b48af70d02a9671f76027aee2486",
            "hash": "101455bb838051e7a01fc2627c4a6fb06aaa08897638e59faac5ec842873272e",
            "actor": null,
            "seal": null
        },
        {
            "version": 4,
            "recorded_at": "2026-10-31T04:45:31Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3863654/srodki-czystosci\", \"buyer\": \"MIEJSKI ZESPÓŁ OBSŁUGI SZKÓŁ I PRZEDSZKOLI\", \"title\": \"Środki czystości\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3863654\", \"deadline_at\": \"2026-11-04T10:50:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:54Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1401331\"}",
            "content_hash": "2db7a4db0784769143f0931eab3e130f1b033fb7c09ac65a79fbbe86377be9eb",
            "prev_hash": "101455bb838051e7a01fc2627c4a6fb06aaa08897638e59faac5ec842873272e",
            "hash": "2fdb986effb821d853c92286594cb8e2bc6666a9813db3d49db73d71f4b7fe01",
            "actor": null,
            "seal": null
        },
        {
            "version": 5,
            "recorded_at": "2026-10-31T10:45:47Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3863654/srodki-czystosci\", \"buyer\": \"MIEJSKI ZESPÓŁ OBSŁUGI SZKÓŁ I PRZEDSZKOLI\", \"title\": \"Środki czystości\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3863654\", \"deadline_at\": \"2026-11-04T10:50:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:54Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3863654/srodki-czystosci\"}",
            "content_hash": "1d9fb60d51a24cbfec329ea583e0a674de0c649814f2d293973774ada76d1803",
            "prev_hash": "2fdb986effb821d853c92286594cb8e2bc6666a9813db3d49db73d71f4b7fe01",
            "hash": "77e5f3154b031537ebfd87d65513d590bda97e56dbc27a496ee78fca5e8424f4",
            "actor": null,
            "seal": null
        },
        {
            "version": 6,
            "recorded_at": "2026-10-31T17:45:31Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3863654/srodki-czystosci\", \"buyer\": \"MIEJSKI ZESPÓŁ OBSŁUGI SZKÓŁ I PRZEDSZKOLI\", \"title\": \"Środki czystości\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3863654\", \"deadline_at\": \"2026-11-04T10:50:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:54Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1401331\"}",
            "content_hash": "2db7a4db0784769143f0931eab3e130f1b033fb7c09ac65a79fbbe86377be9eb",
            "prev_hash": "77e5f3154b031537ebfd87d65513d590bda97e56dbc27a496ee78fca5e8424f4",
            "hash": "c742ed8ea8cf2513badd6169aae08840e4419cd8742780301531c8e2b97f307e",
            "actor": null,
            "seal": null
        }
    ]
}