{
    "tender_id": 5459920,
    "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": "2026-11-05T19:30:55Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1404491\", \"buyer\": \"Komenda Wojewódzka Policji w Poznaniu\", \"title\": \"Alkomaty iBlow 15 Premium\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1404491\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T23:00:00Z\", \"notice_number\": \"1404491\"}",
            "content_hash": "e789a4edbbdfaca77c105d9523ec93b8caebd7d450a828db713df879bb3ebeab",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "e76c64d48aa6d920a227cb5ef5fec869d627bc9eeee7e87b9d40f99e7f3a8a86",
            "actor": null,
            "seal": {
                "id": 13,
                "digest": "88eaa47ed54f178cca07f94ec9f0c5d48c105c008cf249a9e53ac4ca63161903",
                "file": "https://tenderiq.pl/rejestr/pieczec-13.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-13.txt.ots",
                "bitcoin_block": 974729
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-05T19:45:38Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1404491\", \"buyer\": \"Komenda Wojewódzka Policji w Poznaniu\", \"title\": \"Alkomaty iBlow 15 Premium\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1404491\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T23:00:00Z\", \"notice_number\": \"1404491\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1404491\"}",
            "content_hash": "726fc64785c4c0390b21a38a13570c63744906d991f8a604aa1a038ed6bd5d14",
            "prev_hash": "e76c64d48aa6d920a227cb5ef5fec869d627bc9eeee7e87b9d40f99e7f3a8a86",
            "hash": "32dc9a949478407c394f7f1c793ed6eab3ced49c1f28a9a1656c578f71f29728",
            "actor": null,
            "seal": {
                "id": 13,
                "digest": "88eaa47ed54f178cca07f94ec9f0c5d48c105c008cf249a9e53ac4ca63161903",
                "file": "https://tenderiq.pl/rejestr/pieczec-13.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-13.txt.ots",
                "bitcoin_block": 974729
            }
        }
    ]
}