{
    "tender_id": 4016309,
    "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": "2026-10-29T19:15:37Z",
            "content": "{\"cpv\": \"79111000\", \"url\": \"https://platformazakupowa.pl/transakcja/1400188\", \"buyer\": \"Międzynarodowy Instytut Mechanizmów i Maszyn Molekularnych\", \"title\": \"154/10/2026 Ogłoszenie o udzielanym zamówieniu z dziedziny nauki 154/10/2026\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400188\", \"deadline_at\": \"2026-11-03T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:50:00Z\", \"notice_number\": \"1400188\"}",
            "content_hash": "6772afb23ff057e217402aca8c0ec63e34e149e492b2264f5507164240da1de8",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "7994bad455b8841abf83477ac547e9b94efb51edf578f93ccb262efcac4f0c73",
            "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": "2026-10-29T19:46:01Z",
            "content": "{\"cpv\": \"79111000\", \"url\": \"https://platformazakupowa.pl/transakcja/1400188\", \"buyer\": \"Międzynarodowy Instytut Mechanizmów i Maszyn Molekularnych\", \"title\": \"154/10/2026 Ogłoszenie o udzielanym zamówieniu z dziedziny nauki 154/10/2026\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400188\", \"deadline_at\": \"2026-11-03T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:50:00Z\", \"notice_number\": \"1400188\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1399118\"}",
            "content_hash": "686358ec93a4b6728725db1f39b780c9461dc20a181f1c1a37884d5e0ec7b9af",
            "prev_hash": "7994bad455b8841abf83477ac547e9b94efb51edf578f93ccb262efcac4f0c73",
            "hash": "93c5a1ba03fb217491403e9f25aefdcf6f6d2a717663c3902c5cab8c09b5c627",
            "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
            }
        }
    ]
}