{
    "tender_id": 4334755,
    "check": {
        "ok": true,
        "versions": 5,
        "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": "2026-10-31T12:10:23Z",
            "content": "{\"cpv\": \"16700000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051317801_Zakup-ciagnika-rolniczego_2026_2.html\", \"buyer\": \"POWIATOWY ZARZĄD DRÓG W GARWOLINIE\", \"title\": \"Zakup ciągnika rolniczego\", \"region\": \"mazowieckie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Garwolin\", \"source_id\": \"20051317801\", \"deadline_at\": \"2026-11-09T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T00:00:00Z\"}",
            "content_hash": "c6614b798db41f186b35422fa0263c0b77e86a06955721d94905eadfb447a912",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "cae7888c6aef1d5297afe1b13b065aeaaa8c803c3252958e79cb7b5604301661",
            "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": 2,
            "recorded_at": "2026-10-31T12:45:32Z",
            "content": "{\"cpv\": \"16700000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051317801_Zakup-ciagnika-rolniczego_2026_2.html\", \"buyer\": \"POWIATOWY ZARZĄD DRÓG W GARWOLINIE\", \"title\": \"Zakup ciągnika rolniczego\", \"region\": \"mazowieckie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Garwolin\", \"source_id\": \"20051317801\", \"deadline_at\": \"2026-11-09T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3863759/zakup-ciagnika-rolniczego\"}",
            "content_hash": "b2c934eacf65a0fe71d59b8f413365dcb31bc19289e6ad1ba2397ccf1912b99f",
            "prev_hash": "cae7888c6aef1d5297afe1b13b065aeaaa8c803c3252958e79cb7b5604301661",
            "hash": "2f1d4b0d8372a083ae7cc95f5148617c3f26da481376f8458697ad8ffcd0d4f5",
            "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": 3,
            "recorded_at": "2026-10-31T17:45:16Z",
            "content": "{\"cpv\": \"16700000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051317801_Zakup-ciagnika-rolniczego_2026_2.html\", \"buyer\": \"POWIATOWY ZARZĄD DRÓG W GARWOLINIE\", \"title\": \"Zakup ciągnika rolniczego\", \"region\": \"mazowieckie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Garwolin\", \"source_id\": \"20051317801\", \"deadline_at\": \"2026-11-09T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://pzdgarwolin.ezamawiajacy.pl/pn/pzdgarwolin/demand/notice/public/241303/details\"}",
            "content_hash": "a9359472dd08da8fc585db97d7370fb64c3d7b286201696c2a3be7c29cdef4e2",
            "prev_hash": "2f1d4b0d8372a083ae7cc95f5148617c3f26da481376f8458697ad8ffcd0d4f5",
            "hash": "fb25fd614078ecd409b304658efcfb81e973240a41ece0896d95e180edfc97ef",
            "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": "2026-11-01T00:45:17Z",
            "content": "{\"cpv\": \"16700000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051317801_Zakup-ciagnika-rolniczego_2026_2.html\", \"buyer\": \"POWIATOWY ZARZĄD DRÓG W GARWOLINIE\", \"title\": \"Zakup ciągnika rolniczego\", \"region\": \"mazowieckie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Garwolin\", \"source_id\": \"20051317801\", \"deadline_at\": \"2026-11-09T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3863759/zakup-ciagnika-rolniczego\"}",
            "content_hash": "b2c934eacf65a0fe71d59b8f413365dcb31bc19289e6ad1ba2397ccf1912b99f",
            "prev_hash": "fb25fd614078ecd409b304658efcfb81e973240a41ece0896d95e180edfc97ef",
            "hash": "130d4e26b4013b4b914653315cb023f4e5cdaf670e54377d0dd04158b2baa973",
            "actor": null,
            "seal": null
        },
        {
            "version": 5,
            "recorded_at": "2026-11-01T06:45:23Z",
            "content": "{\"cpv\": \"16700000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051317801_Zakup-ciagnika-rolniczego_2026_2.html\", \"buyer\": \"POWIATOWY ZARZĄD DRÓG W GARWOLINIE\", \"title\": \"Zakup ciągnika rolniczego\", \"region\": \"mazowieckie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Garwolin\", \"source_id\": \"20051317801\", \"deadline_at\": \"2026-11-09T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://pzdgarwolin.ezamawiajacy.pl/pn/pzdgarwolin/demand/notice/public/241303/details\"}",
            "content_hash": "a9359472dd08da8fc585db97d7370fb64c3d7b286201696c2a3be7c29cdef4e2",
            "prev_hash": "130d4e26b4013b4b914653315cb023f4e5cdaf670e54377d0dd04158b2baa973",
            "hash": "a51151378a3e1e4c66cd3b1ba179193ed94436b256c007f02a3f25966c5aafde",
            "actor": null,
            "seal": null
        }
    ]
}