{
    "tender_id": 5460199,
    "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": "2026-11-05T19:40:13Z",
            "content": "{\"cpv\": \"30216110\", \"url\": \"https://platformazakupowa.pl/transakcja/1404610\", \"buyer\": \"Powiatowy Urząd Pracy w Jarosławiu\", \"title\": \"Stacja robocza Lenovo.\", \"region\": \"podkarpackie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1404610\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-05T12:08:00Z\", \"notice_number\": \"1404610\"}",
            "content_hash": "8003e45d56beb58002037588501177ce39cbf2b0c9036099d05f9bf65de1f734",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "af137a0f5f2fbdc4ba9c5a37339d34150a32e41e67cdf544435221b051becb11",
            "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": "2026-11-05T20:46:00Z",
            "content": "{\"cpv\": \"30216110\", \"url\": \"https://platformazakupowa.pl/transakcja/1404610\", \"buyer\": \"Powiatowy Urząd Pracy w Jarosławiu\", \"title\": \"Stacja robocza Lenovo.\", \"region\": \"podkarpackie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1404610\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-05T12:08:00Z\", \"notice_number\": \"1404610\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1404610\"}",
            "content_hash": "52acebe93644bca95b6dfebfd35e17488432f6b415227a7eef4a4d45d446374e",
            "prev_hash": "af137a0f5f2fbdc4ba9c5a37339d34150a32e41e67cdf544435221b051becb11",
            "hash": "bebf8c068c01085acf5229b82469690cc5874a07f3e476de49be52ebf7018b6f",
            "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
            }
        }
    ]
}