{
    "tender_id": 3920561,
    "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": "2026-10-29T08:45:22Z",
            "content": "{\"cpv\": \"33140000\", \"url\": \"https://www.przetargi.egospodarka.pl/20050605001_Zakup-wraz-z-dostawa-wyrobow-medycznych-dla-Swietokrzyskiego-Centrum-Onkologii-w-Kielcach_2026_2.html\", \"buyer\": \"Świętokrzyskie Centrum Onkologii\", \"title\": \"Zakup wraz z dostawą wyrobów medycznych dla Świętokrzyskiego Centrum Onkologii w Kielcach\", \"region\": \"swietokrzyskie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Kielce\", \"source_id\": \"20050605001\", \"deadline_at\": \"2026-11-06T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T00:00:00Z\"}",
            "content_hash": "5e54641edec06e5e5f46f31d8e8d23c5a487e536150faaf195639487b481f747",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "42420bb4f5def1664bc19cc61f70c8fd4a819caa9b20e6da9316da736f63b1e2",
            "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": "2026-10-29T09:45:32Z",
            "content": "{\"cpv\": \"33140000\", \"url\": \"https://www.przetargi.egospodarka.pl/20050605001_Zakup-wraz-z-dostawa-wyrobow-medycznych-dla-Swietokrzyskiego-Centrum-Onkologii-w-Kielcach_2026_2.html\", \"buyer\": \"Świętokrzyskie Centrum Onkologii\", \"title\": \"Zakup wraz z dostawą wyrobów medycznych dla Świętokrzyskiego Centrum Onkologii w Kielcach\", \"region\": \"swietokrzyskie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Kielce\", \"source_id\": \"20050605001\", \"deadline_at\": \"2026-11-06T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T00:00:00Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1399280\"}",
            "content_hash": "0edaca5770a3c83d631f1ff9c025bfe2a6307e9cf73af2c9d24df69ca95d21c6",
            "prev_hash": "42420bb4f5def1664bc19cc61f70c8fd4a819caa9b20e6da9316da736f63b1e2",
            "hash": "ca9df5e15a4ef6ec2eb17aa91dd1c40eef364706a9e22bcd81bc2a3b5731c024",
            "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": "2026-10-29T11:29:11Z",
            "content": "{\"cpv\": \"33140000\", \"url\": \"https://www.przetargi.egospodarka.pl/20050605001_Zakup-wraz-z-dostawa-wyrobow-medycznych-dla-Swietokrzyskiego-Centrum-Onkologii-w-Kielcach_2026_2.html\", \"buyer\": \"Świętokrzyskie Centrum Onkologii\", \"title\": \"Zakup wraz z dostawą wyrobów medycznych dla Świętokrzyskiego Centrum Onkologii w Kielcach\", \"region\": \"swietokrzyskie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Kielce\", \"source_id\": \"20050605001\", \"deadline_at\": \"2026-11-06T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T00:00:00Z\", \"procedure_url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df34b8-efbd-dbad-75d7-fc0001a43cc7\"}",
            "content_hash": "caf0b9e2a628f5d302661bc58bbc8ff495bc651916c4fd26363f3db72fa916a1",
            "prev_hash": "ca9df5e15a4ef6ec2eb17aa91dd1c40eef364706a9e22bcd81bc2a3b5731c024",
            "hash": "4a1a4522cbe9c896d5dbeecaffd2f0f37dcfc187db457e4fd22d020234bc9aef",
            "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": 4,
            "recorded_at": "2026-10-29T12:45:38Z",
            "content": "{\"cpv\": \"33140000\", \"url\": \"https://www.przetargi.egospodarka.pl/20050605001_Zakup-wraz-z-dostawa-wyrobow-medycznych-dla-Swietokrzyskiego-Centrum-Onkologii-w-Kielcach_2026_2.html\", \"buyer\": \"Świętokrzyskie Centrum Onkologii\", \"title\": \"Zakup wraz z dostawą wyrobów medycznych dla Świętokrzyskiego Centrum Onkologii w Kielcach\", \"region\": \"swietokrzyskie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Kielce\", \"source_id\": \"20050605001\", \"deadline_at\": \"2026-11-06T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T00:00:00Z\", \"procedure_url\": \"https://ted.europa.eu/pl/notice/-/detail/690582-2026\"}",
            "content_hash": "2a111a3fe5986dfc9fb282247802d3b546c139547ed47f17ea72e37370f7a146",
            "prev_hash": "4a1a4522cbe9c896d5dbeecaffd2f0f37dcfc187db457e4fd22d020234bc9aef",
            "hash": "1314ea212f5f7900da7206b7a9985ae0c95654331255893ee2a2e2366c146f60",
            "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": "2026-10-29T13:45:38Z",
            "content": "{\"cpv\": \"33140000\", \"url\": \"https://www.przetargi.egospodarka.pl/20050605001_Zakup-wraz-z-dostawa-wyrobow-medycznych-dla-Swietokrzyskiego-Centrum-Onkologii-w-Kielcach_2026_2.html\", \"buyer\": \"Świętokrzyskie Centrum Onkologii\", \"title\": \"Zakup wraz z dostawą wyrobów medycznych dla Świętokrzyskiego Centrum Onkologii w Kielcach\", \"region\": \"swietokrzyskie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Kielce\", \"source_id\": \"20050605001\", \"deadline_at\": \"2026-11-06T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T00:00:00Z\", \"procedure_url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df34b8-efbd-dbad-75d7-fc0001a43cc7\"}",
            "content_hash": "caf0b9e2a628f5d302661bc58bbc8ff495bc651916c4fd26363f3db72fa916a1",
            "prev_hash": "1314ea212f5f7900da7206b7a9985ae0c95654331255893ee2a2e2366c146f60",
            "hash": "ca72902d8b32c643909e76fd82c9263d3e866c7da912702c2cb85309b93e2f95",
            "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
            }
        }
    ]
}