{
    "tender_id": 3937544,
    "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": "2026-10-29T12:55:08Z",
            "content": "{\"cpv\": \"50530000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127762\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA ŁOŻYSK PRODUKCJI KOYO\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127762\", \"deadline_at\": \"2026-10-30T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T10:37:00Z\"}",
            "content_hash": "7dc64803c458bfb94ef1d7b82f5ad27d230c9e28d96981dfd37c308adcd34bce",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "a4505a2dafe3206c6b843b7ba6ec44e24315613541ab3ac6b1ea8baf73cfa3a4",
            "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": "2026-10-29T15:30:09Z",
            "content": "{\"cpv\": \"50530000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127762\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA ŁOŻYSK PRODUKCJI KOYO\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127762\", \"deadline_at\": \"2026-10-30T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T10:37:00Z\", \"procedure_url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127762\"}",
            "content_hash": "2042ae289aeeac49640621bf7e2cccc5fc0217a3d43439da1cdd927be206db8d",
            "prev_hash": "a4505a2dafe3206c6b843b7ba6ec44e24315613541ab3ac6b1ea8baf73cfa3a4",
            "hash": "275def67a27cbf0d0ded70067723a1c23d16029034dff2eb74b027ea311ede8c",
            "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": "2026-10-29T18:45:21Z",
            "content": "{\"cpv\": \"50530000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127762\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA ŁOŻYSK PRODUKCJI KOYO\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127762\", \"deadline_at\": \"2026-10-30T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T10:37:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860530/dostawa-ozysk-produkcji-koyo\"}",
            "content_hash": "8260c959da801dd857660cfc3fc596f61bf589e5bc531b4596de1a0f6282d27d",
            "prev_hash": "275def67a27cbf0d0ded70067723a1c23d16029034dff2eb74b027ea311ede8c",
            "hash": "ae07a837976a0d46501e6fd017743a26d8f583181dfa4e456dfa59fe4b81f880",
            "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
            }
        }
    ]
}