{
    "tender_id": 4990625,
    "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": "2026-11-03T13:08:22Z",
            "content": "{\"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=128630\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA ROZDZIELACZA 300 100 20 WOERNER VPB8 PROG (Z/ 36649)\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"128630\", \"deadline_at\": \"2026-11-04T13:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T12:37:00Z\"}",
            "content_hash": "6505ad97f1a3b6cdac5d3175970f07f54990b4ace80d8be54ca92a3053f60eea",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "919f0eece69548f35f8fda279dcb4882392a58c5ff1d061d388cb7a8fe49e516",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": null
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-03T14:45:45Z",
            "content": "{\"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=128630\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA ROZDZIELACZA 300 100 20 WOERNER VPB8 PROG (Z/ 36649)\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"128630\", \"deadline_at\": \"2026-11-04T13:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T12:37:00Z\", \"procedure_url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=128630\"}",
            "content_hash": "f4d01edfb99fc6223b09b478ab632791a82094cfbce3937033b36203521e23b3",
            "prev_hash": "919f0eece69548f35f8fda279dcb4882392a58c5ff1d061d388cb7a8fe49e516",
            "hash": "e359e7f11c9a11e1b4bebab25da9c0a8bfb61fa1d6dcbf9a3adc07833fc54b2e",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": null
            }
        }
    ]
}