{
    "tender_id": 1305595,
    "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": "2026-10-24T13:58:39Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3808680/rozbudowa-monitoringu-punktow-skladowania-odpadow-komunalnych-na-terenie-miasta-kalisza-w-podziale-na-2-czesci-\", \"buyer\": \"MIASTO KALISZ\", \"title\": \"Rozbudowa monitoringu punktów składowania odpadów komunalnych na terenie Miasta Kalisza w podziale na 2 Części.\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3808680\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-14T20:49:07Z\", \"procedure_url\": \"https://miastokalisz.ezamawiajacy.pl/pn/miastokalisz/demand/notice/public/236146/details\"}",
            "content_hash": "badc8ccd0484de1f3a38faca6461ffd7403d5744133e5562e94057febcf657c0",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "1a9de17f190344586f2d462b7750f67c0dd0e04018b272575743844a79c25a97",
            "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": "2026-10-26T21:14:56Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3808680/rozbudowa-monitoringu-punktow-skladowania-odpadow-komunalnych-na-terenie-miasta-kalisza-w-podziale-na-2-czesci-\", \"buyer\": \"MIASTO KALISZ\", \"title\": \"Rozbudowa monitoringu punktów składowania odpadów komunalnych na terenie Miasta Kalisza w podziale na 2 Części.\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3808680\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-14T20:49:07Z\", \"procedure_url\": \"https://miastokalisz.ezamawiajacy.pl/pn/miastokalisz/demand/notice/public/236146/details\"}",
            "content_hash": "f3ba145a87f8e030341dde4298d54d83b385a41eec7cf395fbc687206a7ed81f",
            "prev_hash": "1a9de17f190344586f2d462b7750f67c0dd0e04018b272575743844a79c25a97",
            "hash": "b88244d9e04703eee81985a0d565092c93c991c7d22d710280407e4485195f62",
            "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": 3,
            "recorded_at": "2026-10-27T15:32:20Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3808680/rozbudowa-monitoringu-punktow-skladowania-odpadow-komunalnych-na-terenie-miasta-kalisza-w-podziale-na-2-czesci-\", \"buyer\": \"MIASTO KALISZ\", \"title\": \"Rozbudowa monitoringu punktów składowania odpadów komunalnych na terenie Miasta Kalisza w podziale na 2 Części.\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3808680\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-14T20:49:07Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3808680/rozbudowa-monitoringu-punktow-skladowania-odpadow-komunalnych-na-terenie-miasta-kalisza-w-podziale-na-2-czesci-\"}",
            "content_hash": "89f071f8add45dd048319573d8b43395b7521d1d1c408faaf0f60a81fa9c35c9",
            "prev_hash": "b88244d9e04703eee81985a0d565092c93c991c7d22d710280407e4485195f62",
            "hash": "dd4620b01a2425d35c05ef8dd1b4086fb4c6d8d2c83d7e59af881b16d007e196",
            "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": 4,
            "recorded_at": "2026-10-27T22:55:24Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3808680/rozbudowa-monitoringu-punktow-skladowania-odpadow-komunalnych-na-terenie-miasta-kalisza-w-podziale-na-2-czesci-\", \"buyer\": \"MIASTO KALISZ\", \"title\": \"Rozbudowa monitoringu punktów składowania odpadów komunalnych na terenie Miasta Kalisza w podziale na 2 Części.\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3808680\", \"deadline_at\": \"2026-11-04T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-14T20:49:07Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3808680/rozbudowa-monitoringu-punktow-skladowania-odpadow-komunalnych-na-terenie-miasta-kalisza-w-podziale-na-2-czesci-\"}",
            "content_hash": "e0e18fb3e5fcfdbc6c05f1835a0ce29b9b0fe7890bb626c247d5f3f48fa7d00b",
            "prev_hash": "dd4620b01a2425d35c05ef8dd1b4086fb4c6d8d2c83d7e59af881b16d007e196",
            "hash": "6b0d6f627fc72babf03871b9044a51a0f65e039be014e09ccc87a73a7fe3a87d",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 5,
            "recorded_at": "2026-10-27T23:32:44Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3808680/rozbudowa-monitoringu-punktow-skladowania-odpadow-komunalnych-na-terenie-miasta-kalisza-w-podziale-na-2-czesci-\", \"buyer\": \"MIASTO KALISZ\", \"title\": \"Rozbudowa monitoringu punktów składowania odpadów komunalnych na terenie Miasta Kalisza w podziale na 2 Części.\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3808680\", \"deadline_at\": \"2026-11-04T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-14T20:49:07Z\", \"procedure_url\": \"https://miastokalisz.ezamawiajacy.pl/pn/miastokalisz/demand/notice/public/236146/details\"}",
            "content_hash": "2f96dd16d02c0d978454e49e0cc50b89aba6e65fc31147a6a3c9b9016c5689dc",
            "prev_hash": "6b0d6f627fc72babf03871b9044a51a0f65e039be014e09ccc87a73a7fe3a87d",
            "hash": "0c965430e25f48de1a968ab675f54121b7678eac39f7eedf144f43c17fc1f6a6",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 6,
            "recorded_at": "2026-10-30T22:10:51Z",
            "content": "{\"cpv\": \"90500000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3808680/rozbudowa-monitoringu-punktow-skladowania-odpadow-komunalnych-na-terenie-miasta-kalisza-w-podziale-na-2-czesci-\", \"buyer\": \"MIASTO KALISZ\", \"title\": \"Rozbudowa monitoringu punktów składowania odpadów komunalnych na terenie Miasta Kalisza w podziale na 2 Części.\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3808680\", \"deadline_at\": \"2026-11-04T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-14T20:49:07Z\", \"procedure_url\": \"https://miastokalisz.ezamawiajacy.pl/pn/miastokalisz/demand/notice/public/236146/details\"}",
            "content_hash": "bbb18ffb146e00144a6f59eaf75decd2143c2313fb93ea1d7ef85060cd9e5672",
            "prev_hash": "0c965430e25f48de1a968ab675f54121b7678eac39f7eedf144f43c17fc1f6a6",
            "hash": "b357778cd8da77111f9020da5637bdcb108bd2558fe79e394d9bbeb22af1ab0e",
            "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
            }
        }
    ]
}