{
    "tender_id": 4021021,
    "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": "2026-10-29T19:35:26Z",
            "content": "{\"cpv\": \"43261000\", \"url\": \"https://platformazakupowa.pl/transakcja/1385345\", \"buyer\": \"Przedsiębiorstwo Remontów Ulic i Mostów S.A.\", \"title\": \"ZP/43/2026 Dostawa koparko-ładowarki – sprzęt ciężki 8-9 t. w ramach realizacji Programu Ochrony Ludności i Obrony Cywilnej na lata 2025 - 2026\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1385345\", \"deadline_at\": \"2026-11-12T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T19:35:26Z\", \"notice_number\": \"1385345\"}",
            "content_hash": "15e2fa86b65bfb1d5a073ee4f74f015c60f1a2601bdf8c409e2f8f89761b75f0",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "38f8099f646ee91229b931ab1a91b5fc984932bd8064876e1f653315c6be3a59",
            "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": "2026-10-29T19:45:59Z",
            "content": "{\"cpv\": \"43261000\", \"url\": \"https://platformazakupowa.pl/transakcja/1385345\", \"buyer\": \"Przedsiębiorstwo Remontów Ulic i Mostów S.A.\", \"title\": \"ZP/43/2026 Dostawa koparko-ładowarki – sprzęt ciężki 8-9 t. w ramach realizacji Programu Ochrony Ludności i Obrony Cywilnej na lata 2025 - 2026\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1385345\", \"deadline_at\": \"2026-11-12T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T19:35:26Z\", \"notice_number\": \"1385345\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1385345\"}",
            "content_hash": "80cc93996083c4aad551acebe388ea2572c2abf4a0562727fcf2df995a281901",
            "prev_hash": "38f8099f646ee91229b931ab1a91b5fc984932bd8064876e1f653315c6be3a59",
            "hash": "58be619d4329beab01a681a3ef32022e920bd45c2e3b0996fbd81ccd9db3d34e",
            "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": 3,
            "recorded_at": "2026-10-29T23:52:41Z",
            "content": "{\"cpv\": \"43261000\", \"url\": \"https://platformazakupowa.pl/transakcja/1385345\", \"buyer\": \"Przedsiębiorstwo Remontów Ulic i Mostów S.A.\", \"title\": \"ZP/43/2026 Dostawa koparko-ładowarki – sprzęt ciężki 8-9 t. w ramach realizacji Programu Ochrony Ludności i Obrony Cywilnej na lata 2025 - 2026\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1385345\", \"deadline_at\": \"2026-11-12T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T10:21:00Z\", \"notice_number\": \"1385345\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1385345\"}",
            "content_hash": "2fe395e8069866f3afb4e6e6a2f37a9b74ed36d3a5d410bb462899685342a912",
            "prev_hash": "58be619d4329beab01a681a3ef32022e920bd45c2e3b0996fbd81ccd9db3d34e",
            "hash": "b7f4dcb4f610ce061a3994f19bd4e2fb6c58e856bc518f669691a2e71346f1ca",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        }
    ]
}