{
    "tender_id": 6933992,
    "check": {
        "ok": true,
        "versions": 3,
        "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": "2026-11-12T20:21:15Z",
            "content": "{\"cpv\": \"30190000\", \"url\": \"https://platformazakupowa.pl/transakcja/1408321\", \"buyer\": \"25 Wojskowy Oddział Gospodarczy w Białymstoku\", \"title\": \"Artykuły biurowe\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1408321\", \"deadline_at\": \"2026-11-20T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-12T20:21:15Z\", \"notice_number\": \"1408321\"}",
            "content_hash": "2b606d397b48fe6ac8b4d15b39cbe128a462595a10714ea58e2f2f3c52f5591e",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "25981bc045ec9ba5011a1fe739ebdde22c0cfdd1e7c65e844a9d15559f51fb56",
            "actor": null,
            "seal": {
                "id": 20,
                "digest": "b2fd6447da2d3f3e4b1804384291a598bc4e869f37e35449b20c1a3b8e7b3920",
                "file": "https://tenderiq.pl/rejestr/pieczec-20.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-20.txt.ots",
                "bitcoin_block": 975620
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-12T20:45:53Z",
            "content": "{\"cpv\": \"30190000\", \"url\": \"https://platformazakupowa.pl/transakcja/1408321\", \"buyer\": \"25 Wojskowy Oddział Gospodarczy w Białymstoku\", \"title\": \"Artykuły biurowe\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1408321\", \"deadline_at\": \"2026-11-20T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-12T20:21:15Z\", \"notice_number\": \"1408321\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3891479/artykuly-biurowe\"}",
            "content_hash": "83a33c01f4446e60e34e75045b014a0f30ed52adf2b33244cf76fe31a45c95df",
            "prev_hash": "25981bc045ec9ba5011a1fe739ebdde22c0cfdd1e7c65e844a9d15559f51fb56",
            "hash": "fa4a527843b9f204eb9ac8f9d5d2d59c7af323ee1e5f086fa0c230a26e30d67d",
            "actor": null,
            "seal": {
                "id": 20,
                "digest": "b2fd6447da2d3f3e4b1804384291a598bc4e869f37e35449b20c1a3b8e7b3920",
                "file": "https://tenderiq.pl/rejestr/pieczec-20.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-20.txt.ots",
                "bitcoin_block": 975620
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-13T01:46:32Z",
            "content": "{\"cpv\": \"30190000\", \"url\": \"https://platformazakupowa.pl/transakcja/1408321\", \"buyer\": \"25 Wojskowy Oddział Gospodarczy w Białymstoku\", \"title\": \"Artykuły biurowe\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1408321\", \"deadline_at\": \"2026-11-20T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-12T10:12:00Z\", \"notice_number\": \"1408321\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3891479/artykuly-biurowe\"}",
            "content_hash": "71dc7467888f12424cafddec1907ca6f00ffd91baef76761a93726cb86a59ec8",
            "prev_hash": "fa4a527843b9f204eb9ac8f9d5d2d59c7af323ee1e5f086fa0c230a26e30d67d",
            "hash": "8927d2e938a848335ca3a4b4a75e3ca929618eeb99d38d8f14293239e476cf55",
            "actor": null,
            "seal": null
        }
    ]
}