{
    "tender_id": 1277873,
    "check": {
        "ok": true,
        "versions": 8,
        "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\": \"66510000\", \"url\": \"https://platformazakupowa.pl/transakcja/1391507\", \"buyer\": \"Supra Brokers S.A.\", \"title\": \"Usługa Ubezpieczenia Powiatu Złotowskiego wraz z jednostkami- ubezpieczenie mienia\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1391507\", \"deadline_at\": \"2026-10-29T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-14T10:13:00Z\", \"notice_number\": \"1391507\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1391507\"}",
            "content_hash": "cef33368e7c5be30d6f2df26caf2c6e29af1714644687a5966d740e31782e79e",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "fa9b2d661d74a3707598bbebdda1c45bc09cd0d133b9b6a62f497cfcfaa3f2ab",
            "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": "2026-10-27T23:32:48Z",
            "content": "{\"cpv\": \"66510000\", \"url\": \"https://platformazakupowa.pl/transakcja/1391507\", \"buyer\": \"Supra Brokers S.A.\", \"title\": \"Usługa Ubezpieczenia Powiatu Złotowskiego wraz z jednostkami- ubezpieczenie mienia\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1391507\", \"deadline_at\": \"2026-10-29T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-14T10:13:00Z\", \"notice_number\": \"1391507\"}",
            "content_hash": "a3d617d169da06dd9c8c4971a88bc0d0bce803e98a7dd07090b7e2af678e5dc2",
            "prev_hash": "fa9b2d661d74a3707598bbebdda1c45bc09cd0d133b9b6a62f497cfcfaa3f2ab",
            "hash": "4443eb66aa4de81bd211a6a23d0d14c86d5f4ebaa610529af10070a6babd76e9",
            "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": 3,
            "recorded_at": "2026-10-28T03:33:57Z",
            "content": "{\"cpv\": \"66510000\", \"url\": \"https://platformazakupowa.pl/transakcja/1391507\", \"buyer\": \"Supra Brokers S.A.\", \"title\": \"Usługa Ubezpieczenia Powiatu Złotowskiego wraz z jednostkami- ubezpieczenie mienia\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1391507\", \"deadline_at\": \"2026-10-29T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-14T10:13:00Z\", \"notice_number\": \"1391507\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1391507\"}",
            "content_hash": "cef33368e7c5be30d6f2df26caf2c6e29af1714644687a5966d740e31782e79e",
            "prev_hash": "4443eb66aa4de81bd211a6a23d0d14c86d5f4ebaa610529af10070a6babd76e9",
            "hash": "f46d011c1b5a6984eaedd0e1b1a36df6de8134d1bec6a05472e5d011cf8cb2ac",
            "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": 4,
            "recorded_at": "2026-10-28T19:32:14Z",
            "content": "{\"cpv\": \"66510000\", \"url\": \"https://platformazakupowa.pl/transakcja/1391507\", \"buyer\": \"Supra Brokers S.A.\", \"title\": \"Usługa Ubezpieczenia Powiatu Złotowskiego wraz z jednostkami- ubezpieczenie mienia\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1391507\", \"deadline_at\": \"2026-10-29T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-14T10:13:00Z\", \"notice_number\": \"1391507\"}",
            "content_hash": "a3d617d169da06dd9c8c4971a88bc0d0bce803e98a7dd07090b7e2af678e5dc2",
            "prev_hash": "f46d011c1b5a6984eaedd0e1b1a36df6de8134d1bec6a05472e5d011cf8cb2ac",
            "hash": "e1cea0a6fa3cd1669d7dc27e3cf8e7291c72991ceee9235115067e10d0b90c97",
            "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": "2026-10-28T21:29:53Z",
            "content": "{\"cpv\": \"66510000\", \"url\": \"https://platformazakupowa.pl/transakcja/1391507\", \"buyer\": \"Supra Brokers S.A.\", \"title\": \"SWZ NR 26833/2026 Usługa Ubezpieczenia Powiatu Złotowskiego wraz z jednostkami- ubezpieczenie mienia\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1391507\", \"deadline_at\": \"2026-11-10T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-14T10:13:00Z\", \"notice_number\": \"1391507\"}",
            "content_hash": "e3f5e7009a12de228bc74b522a2cf4a2081dfb4024334e26f739e2c195f0b957",
            "prev_hash": "e1cea0a6fa3cd1669d7dc27e3cf8e7291c72991ceee9235115067e10d0b90c97",
            "hash": "cb35aa67367bf76184da255d79c56ef78ff804ccec25d8b023025bb0c0aeae13",
            "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": "2026-10-28T23:31:46Z",
            "content": "{\"cpv\": \"66510000\", \"url\": \"https://platformazakupowa.pl/transakcja/1391507\", \"buyer\": \"Supra Brokers S.A.\", \"title\": \"SWZ NR 26833/2026 Usługa Ubezpieczenia Powiatu Złotowskiego wraz z jednostkami- ubezpieczenie mienia\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1391507\", \"deadline_at\": \"2026-11-10T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-14T10:13:00Z\", \"notice_number\": \"1391507\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1391507\"}",
            "content_hash": "f6fd14b312debbb209a56e1c4f71ed72a51063f4e1c81d5b104d6ef477107f0b",
            "prev_hash": "cb35aa67367bf76184da255d79c56ef78ff804ccec25d8b023025bb0c0aeae13",
            "hash": "b9d9aca01ce66e551a4fc359bf96f813ec0d9384f708204fb478470e4d7333a5",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 7,
            "recorded_at": "2026-10-29T05:45:48Z",
            "content": "{\"cpv\": \"66510000\", \"url\": \"https://platformazakupowa.pl/transakcja/1391507\", \"buyer\": \"Supra Brokers S.A.\", \"title\": \"SWZ NR 26833/2026 Usługa Ubezpieczenia Powiatu Złotowskiego wraz z jednostkami- ubezpieczenie mienia\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1391507\", \"deadline_at\": \"2026-11-10T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-14T10:13:00Z\", \"notice_number\": \"1391507\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1355415\"}",
            "content_hash": "9d11b64a93fd5e9bc2bb63023c81d0b0763242c1050d3e019cf174f111be1b04",
            "prev_hash": "b9d9aca01ce66e551a4fc359bf96f813ec0d9384f708204fb478470e4d7333a5",
            "hash": "62184d592526e1778d695e31f5342d209e3bac2936835b83a00ee76582dd3798",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 8,
            "recorded_at": "2026-10-29T07:32:37Z",
            "content": "{\"cpv\": \"66510000\", \"url\": \"https://platformazakupowa.pl/transakcja/1391507\", \"buyer\": \"Supra Brokers S.A.\", \"title\": \"SWZ NR 26833/2026 Usługa Ubezpieczenia Powiatu Złotowskiego wraz z jednostkami- ubezpieczenie mienia\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1391507\", \"deadline_at\": \"2026-11-10T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-14T10:13:00Z\", \"notice_number\": \"1391507\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1391507\"}",
            "content_hash": "f6fd14b312debbb209a56e1c4f71ed72a51063f4e1c81d5b104d6ef477107f0b",
            "prev_hash": "62184d592526e1778d695e31f5342d209e3bac2936835b83a00ee76582dd3798",
            "hash": "477ecdb942e4cad91de78b4e8d8153c67fa99e49a9119f95729aea208d1838f1",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        }
    ]
}