{
    "tender_id": 6824501,
    "check": {
        "ok": true,
        "versions": 2,
        "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": "2026-11-12T10:39:12Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://platformazakupowa.pl/transakcja/1408125\", \"buyer\": \"Komenda Wojewódzka Policji w Poznaniu\", \"title\": \"Zakup komputerów AiO i laptopa\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1408125\", \"deadline_at\": \"2026-11-17T09:25:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-12T09:34:00Z\", \"notice_number\": \"1408125\"}",
            "content_hash": "acdd72cd5501b546277ef6b30eb991078eff8ae17aabe340f864b21aba19ef54",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "7f201991a54b699b19302c5f82856caee5d7a45d50ed5e663d0f13e246092fc0",
            "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": "2026-11-12T11:45:41Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://platformazakupowa.pl/transakcja/1408125\", \"buyer\": \"Komenda Wojewódzka Policji w Poznaniu\", \"title\": \"Zakup komputerów AiO i laptopa\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1408125\", \"deadline_at\": \"2026-11-17T09:25:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-12T09:34:00Z\", \"notice_number\": \"1408125\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1408125\"}",
            "content_hash": "effa91cc6e1822b0aa2a7c1b464cbed949637919f309d4f701757c3b17fbba76",
            "prev_hash": "7f201991a54b699b19302c5f82856caee5d7a45d50ed5e663d0f13e246092fc0",
            "hash": "dfe9e95702b28c23e11664f563f597002e4ad30f1bc44b8acbd9600a55a02305",
            "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
            }
        }
    ]
}