{
    "tender_id": 3596120,
    "check": {
        "ok": true,
        "versions": 10,
        "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": "2026-10-27T13:04:53Z",
            "content": "{\"cpv\": \"90712000\", \"url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\", \"buyer\": \"Regionalna Dyrekcja Ochrony Środowiska w Bydgoszczy\", \"title\": \"Opracowanie planów ochrony dla rezerwatów przyrody w województwie kujawsko-pomorskim\", \"region\": \"kujawsko-pomorskie\", \"source\": \"rdosbydgoszcz_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240450\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T09:23:00Z\"}",
            "content_hash": "5463cae3a39d94fc7f41af1f1c3872f660de1969d5d8d61b0933ac964965f81a",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "1194a48a96d700e34318f2f882fb8deb2fdb28bef3774b05f6d3a7649425b8ff",
            "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": 2,
            "recorded_at": "2026-10-27T15:32:20Z",
            "content": "{\"cpv\": \"90712000\", \"url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\", \"buyer\": \"Regionalna Dyrekcja Ochrony Środowiska w Bydgoszczy\", \"title\": \"Opracowanie planów ochrony dla rezerwatów przyrody w województwie kujawsko-pomorskim\", \"region\": \"kujawsko-pomorskie\", \"source\": \"rdosbydgoszcz_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240450\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T09:23:00Z\", \"procedure_url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\"}",
            "content_hash": "3673910f1b6d297344ce3f0e3bcc5bc70850b3c96acb6bbe5dd1bd025852eb5c",
            "prev_hash": "1194a48a96d700e34318f2f882fb8deb2fdb28bef3774b05f6d3a7649425b8ff",
            "hash": "ccbffb9a0367df803b22ed57c2b6cc7c4d039828372deaf2a964d809f830cf66",
            "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": "2026-10-27T19:35:46Z",
            "content": "{\"cpv\": \"90712000\", \"url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\", \"buyer\": \"Regionalna Dyrekcja Ochrony Środowiska w Bydgoszczy\", \"title\": \"Opracowanie planów ochrony dla rezerwatów przyrody w województwie kujawsko-pomorskim\", \"region\": \"kujawsko-pomorskie\", \"source\": \"rdosbydgoszcz_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240450\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T09:23:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855613/opracowanie-planow-ochrony-dla-rezerwatow-przyrody-w-wojewodztwie-kujawsko-pomorskim\"}",
            "content_hash": "09f7f495a79d45b9fbb005ab6a25726cba6bfd63f049b6fe14ff4ea53db2b60e",
            "prev_hash": "ccbffb9a0367df803b22ed57c2b6cc7c4d039828372deaf2a964d809f830cf66",
            "hash": "af0dda64b3c9c8ac90f97415bfddd28c34577aaf733823791ade206789dd7ac7",
            "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": "2026-10-28T22:45:57Z",
            "content": "{\"cpv\": \"90712000\", \"url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\", \"buyer\": \"Regionalna Dyrekcja Ochrony Środowiska w Bydgoszczy\", \"title\": \"Opracowanie planów ochrony dla rezerwatów przyrody w województwie kujawsko-pomorskim\", \"region\": \"kujawsko-pomorskie\", \"source\": \"rdosbydgoszcz_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240450\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T09:23:00Z\", \"procedure_url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\"}",
            "content_hash": "3673910f1b6d297344ce3f0e3bcc5bc70850b3c96acb6bbe5dd1bd025852eb5c",
            "prev_hash": "af0dda64b3c9c8ac90f97415bfddd28c34577aaf733823791ade206789dd7ac7",
            "hash": "a2ae611e8271c97d23b5b8be3c2c2b4f6b0c6f834c2dc4734b78cc5bbc3099dc",
            "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": 5,
            "recorded_at": "2026-10-29T05:45:56Z",
            "content": "{\"cpv\": \"90712000\", \"url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\", \"buyer\": \"Regionalna Dyrekcja Ochrony Środowiska w Bydgoszczy\", \"title\": \"Opracowanie planów ochrony dla rezerwatów przyrody w województwie kujawsko-pomorskim\", \"region\": \"kujawsko-pomorskie\", \"source\": \"rdosbydgoszcz_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240450\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T09:23:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855613/opracowanie-planow-ochrony-dla-rezerwatow-przyrody-w-wojewodztwie-kujawsko-pomorskim\"}",
            "content_hash": "09f7f495a79d45b9fbb005ab6a25726cba6bfd63f049b6fe14ff4ea53db2b60e",
            "prev_hash": "a2ae611e8271c97d23b5b8be3c2c2b4f6b0c6f834c2dc4734b78cc5bbc3099dc",
            "hash": "6163f2a9d3a8879880f29f8d76c1b0c2fde00af58d83ac5c5daacf5c7e394f4b",
            "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": 6,
            "recorded_at": "2026-10-31T04:45:41Z",
            "content": "{\"cpv\": \"90712000\", \"url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\", \"buyer\": \"Regionalna Dyrekcja Ochrony Środowiska w Bydgoszczy\", \"title\": \"Opracowanie planów ochrony dla rezerwatów przyrody w województwie kujawsko-pomorskim\", \"region\": \"kujawsko-pomorskie\", \"source\": \"rdosbydgoszcz_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240450\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T09:23:00Z\", \"procedure_url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\"}",
            "content_hash": "3673910f1b6d297344ce3f0e3bcc5bc70850b3c96acb6bbe5dd1bd025852eb5c",
            "prev_hash": "6163f2a9d3a8879880f29f8d76c1b0c2fde00af58d83ac5c5daacf5c7e394f4b",
            "hash": "02e0b9163a16b62bef3e180c7331bc92f668d59c7eb2fec18e5fc3baddfcad82",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        },
        {
            "version": 7,
            "recorded_at": "2026-10-31T10:45:47Z",
            "content": "{\"cpv\": \"90712000\", \"url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\", \"buyer\": \"Regionalna Dyrekcja Ochrony Środowiska w Bydgoszczy\", \"title\": \"Opracowanie planów ochrony dla rezerwatów przyrody w województwie kujawsko-pomorskim\", \"region\": \"kujawsko-pomorskie\", \"source\": \"rdosbydgoszcz_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240450\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T09:23:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855613/opracowanie-planow-ochrony-dla-rezerwatow-przyrody-w-wojewodztwie-kujawsko-pomorskim\"}",
            "content_hash": "09f7f495a79d45b9fbb005ab6a25726cba6bfd63f049b6fe14ff4ea53db2b60e",
            "prev_hash": "02e0b9163a16b62bef3e180c7331bc92f668d59c7eb2fec18e5fc3baddfcad82",
            "hash": "4532957174c5b8c0bb8f97b23bbef6c15a57617e83d934b28d75ea69729ece6d",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        },
        {
            "version": 8,
            "recorded_at": "2026-10-31T17:45:40Z",
            "content": "{\"cpv\": \"90712000\", \"url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\", \"buyer\": \"Regionalna Dyrekcja Ochrony Środowiska w Bydgoszczy\", \"title\": \"Opracowanie planów ochrony dla rezerwatów przyrody w województwie kujawsko-pomorskim\", \"region\": \"kujawsko-pomorskie\", \"source\": \"rdosbydgoszcz_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240450\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T09:23:00Z\", \"procedure_url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\"}",
            "content_hash": "3673910f1b6d297344ce3f0e3bcc5bc70850b3c96acb6bbe5dd1bd025852eb5c",
            "prev_hash": "4532957174c5b8c0bb8f97b23bbef6c15a57617e83d934b28d75ea69729ece6d",
            "hash": "d799a61a493f5f994baed9a9a799986026a9be020f5b709c7708886d4950e00f",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        },
        {
            "version": 9,
            "recorded_at": "2026-11-01T00:45:50Z",
            "content": "{\"cpv\": \"90712000\", \"url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\", \"buyer\": \"Regionalna Dyrekcja Ochrony Środowiska w Bydgoszczy\", \"title\": \"Opracowanie planów ochrony dla rezerwatów przyrody w województwie kujawsko-pomorskim\", \"region\": \"kujawsko-pomorskie\", \"source\": \"rdosbydgoszcz_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240450\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T09:23:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855613/opracowanie-planow-ochrony-dla-rezerwatow-przyrody-w-wojewodztwie-kujawsko-pomorskim\"}",
            "content_hash": "09f7f495a79d45b9fbb005ab6a25726cba6bfd63f049b6fe14ff4ea53db2b60e",
            "prev_hash": "d799a61a493f5f994baed9a9a799986026a9be020f5b709c7708886d4950e00f",
            "hash": "61ef6be984822a6b612ece995218945034ea16f792810d78bec0f27d0fdf91ff",
            "actor": null,
            "seal": null
        },
        {
            "version": 10,
            "recorded_at": "2026-11-01T06:45:47Z",
            "content": "{\"cpv\": \"90712000\", \"url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\", \"buyer\": \"Regionalna Dyrekcja Ochrony Środowiska w Bydgoszczy\", \"title\": \"Opracowanie planów ochrony dla rezerwatów przyrody w województwie kujawsko-pomorskim\", \"region\": \"kujawsko-pomorskie\", \"source\": \"rdosbydgoszcz_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240450\", \"deadline_at\": \"2026-11-27T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T09:23:00Z\", \"procedure_url\": \"https://rdosbydgoszcz.ezamawiajacy.pl/pn/rdosbydgoszcz/demand/notice/public/240450/details\"}",
            "content_hash": "3673910f1b6d297344ce3f0e3bcc5bc70850b3c96acb6bbe5dd1bd025852eb5c",
            "prev_hash": "61ef6be984822a6b612ece995218945034ea16f792810d78bec0f27d0fdf91ff",
            "hash": "658480fe0ca4a25a7b9b84b0e71ad45ec0fbbed99a2ba7077b76720a0d53fee4",
            "actor": null,
            "seal": null
        }
    ]
}