{
    "tender_id": 3974633,
    "check": {
        "ok": true,
        "versions": 7,
        "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": "2026-10-29T15:23:06Z",
            "content": "{\"cpv\": \"45316110\", \"url\": \"https://umpila.ezamawiajacy.pl/pn/umpila/demand/notice/public/240670/details\", \"buyer\": \"Gmina Piła\", \"title\": \"Wykonanie wyprowadzeń zasilających oraz iluminacji drzew na terenie Gminy Piła\", \"region\": \"wielkopolskie\", \"source\": \"umpila_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240670\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:52:00Z\"}",
            "content_hash": "1383755c24ab67354a97661c928a1a795b857cd77b133dc6efb12803b1e96e06",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "c8d0588d251f3c8c06014defc03cb6ea410bcd13182ce4dac41dd6cddfd999d4",
            "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": 2,
            "recorded_at": "2026-10-29T15:45:25Z",
            "content": "{\"cpv\": \"45316110\", \"url\": \"https://umpila.ezamawiajacy.pl/pn/umpila/demand/notice/public/240670/details\", \"buyer\": \"Gmina Piła\", \"title\": \"Wykonanie wyprowadzeń zasilających oraz iluminacji drzew na terenie Gminy Piła\", \"region\": \"wielkopolskie\", \"source\": \"umpila_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240670\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:52:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3859978/wykonanie-wyprowadzen-zasilajacych-oraz-iluminacji-drzew-na-terenie-gminy-pila\"}",
            "content_hash": "4efd156f83a8c3127dd20133df787cf9b11366e575000e94e1c83df789fb73ee",
            "prev_hash": "c8d0588d251f3c8c06014defc03cb6ea410bcd13182ce4dac41dd6cddfd999d4",
            "hash": "8c22a08beb4e31ea45bbaf910a859dca0ed1d882874f9a374ce9be6a010bfcdc",
            "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": 3,
            "recorded_at": "2026-10-31T04:45:53Z",
            "content": "{\"cpv\": \"45316110\", \"url\": \"https://umpila.ezamawiajacy.pl/pn/umpila/demand/notice/public/240670/details\", \"buyer\": \"Gmina Piła\", \"title\": \"Wykonanie wyprowadzeń zasilających oraz iluminacji drzew na terenie Gminy Piła\", \"region\": \"wielkopolskie\", \"source\": \"umpila_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240670\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:52:00Z\", \"procedure_url\": \"https://umpila.ezamawiajacy.pl/pn/umpila/demand/notice/public/240670/details\"}",
            "content_hash": "26e7384302e9ce17eb73f74eba8274413e54f37ecd264510af1c611941a00023",
            "prev_hash": "8c22a08beb4e31ea45bbaf910a859dca0ed1d882874f9a374ce9be6a010bfcdc",
            "hash": "9eb6004a30fbe78ed22a84ab6fffc2a4edb3f7d9c46952a3c11f478f7257cbdd",
            "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": 4,
            "recorded_at": "2026-10-31T10:45:39Z",
            "content": "{\"cpv\": \"45316110\", \"url\": \"https://umpila.ezamawiajacy.pl/pn/umpila/demand/notice/public/240670/details\", \"buyer\": \"Gmina Piła\", \"title\": \"Wykonanie wyprowadzeń zasilających oraz iluminacji drzew na terenie Gminy Piła\", \"region\": \"wielkopolskie\", \"source\": \"umpila_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240670\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:52:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3859978/wykonanie-wyprowadzen-zasilajacych-oraz-iluminacji-drzew-na-terenie-gminy-pila\"}",
            "content_hash": "4efd156f83a8c3127dd20133df787cf9b11366e575000e94e1c83df789fb73ee",
            "prev_hash": "9eb6004a30fbe78ed22a84ab6fffc2a4edb3f7d9c46952a3c11f478f7257cbdd",
            "hash": "e94380201af064864263c745f20033e2f272da2fb707fa4fdfa768e4a6a5fb4d",
            "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": 5,
            "recorded_at": "2026-10-31T17:45:23Z",
            "content": "{\"cpv\": \"45316110\", \"url\": \"https://umpila.ezamawiajacy.pl/pn/umpila/demand/notice/public/240670/details\", \"buyer\": \"Gmina Piła\", \"title\": \"Wykonanie wyprowadzeń zasilających oraz iluminacji drzew na terenie Gminy Piła\", \"region\": \"wielkopolskie\", \"source\": \"umpila_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240670\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:52:00Z\", \"procedure_url\": \"https://umpila.ezamawiajacy.pl/pn/umpila/demand/notice/public/240670/details\"}",
            "content_hash": "26e7384302e9ce17eb73f74eba8274413e54f37ecd264510af1c611941a00023",
            "prev_hash": "e94380201af064864263c745f20033e2f272da2fb707fa4fdfa768e4a6a5fb4d",
            "hash": "3ed1f2b383d3220e113a053556bed3ac154ebdbbc47db39bff4087ede7b994a9",
            "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": 6,
            "recorded_at": "2026-11-01T00:45:34Z",
            "content": "{\"cpv\": \"45316110\", \"url\": \"https://umpila.ezamawiajacy.pl/pn/umpila/demand/notice/public/240670/details\", \"buyer\": \"Gmina Piła\", \"title\": \"Wykonanie wyprowadzeń zasilających oraz iluminacji drzew na terenie Gminy Piła\", \"region\": \"wielkopolskie\", \"source\": \"umpila_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240670\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:52:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3859978/wykonanie-wyprowadzen-zasilajacych-oraz-iluminacji-drzew-na-terenie-gminy-pila\"}",
            "content_hash": "4efd156f83a8c3127dd20133df787cf9b11366e575000e94e1c83df789fb73ee",
            "prev_hash": "3ed1f2b383d3220e113a053556bed3ac154ebdbbc47db39bff4087ede7b994a9",
            "hash": "492cbac9fc546f837cc14a609c060a4979ee8a55cec904c0d51554fa135ffb9c",
            "actor": null,
            "seal": {
                "id": 9,
                "digest": "2dfeb1f26d6191d887699bed5d05f226d8baa25e2f81adcf1d5d9f3ce86c75c5",
                "file": "https://tenderiq.pl/rejestr/pieczec-9.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-9.txt.ots",
                "bitcoin_block": null
            }
        },
        {
            "version": 7,
            "recorded_at": "2026-11-01T06:45:35Z",
            "content": "{\"cpv\": \"45316110\", \"url\": \"https://umpila.ezamawiajacy.pl/pn/umpila/demand/notice/public/240670/details\", \"buyer\": \"Gmina Piła\", \"title\": \"Wykonanie wyprowadzeń zasilających oraz iluminacji drzew na terenie Gminy Piła\", \"region\": \"wielkopolskie\", \"source\": \"umpila_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"240670\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:52:00Z\", \"procedure_url\": \"https://umpila.ezamawiajacy.pl/pn/umpila/demand/notice/public/240670/details\"}",
            "content_hash": "26e7384302e9ce17eb73f74eba8274413e54f37ecd264510af1c611941a00023",
            "prev_hash": "492cbac9fc546f837cc14a609c060a4979ee8a55cec904c0d51554fa135ffb9c",
            "hash": "62e624fc0f12d86958060943b6cb78df76748b7f136fa123f1b3bf4001107627",
            "actor": null,
            "seal": {
                "id": 9,
                "digest": "2dfeb1f26d6191d887699bed5d05f226d8baa25e2f81adcf1d5d9f3ce86c75c5",
                "file": "https://tenderiq.pl/rejestr/pieczec-9.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-9.txt.ots",
                "bitcoin_block": null
            }
        }
    ]
}