{
    "tender_id": 4754006,
    "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": "2026-11-02T09:51:06Z",
            "content": "{\"cpv\": \"39515410\", \"url\": \"https://platformazakupowa.pl/transakcja/1401926\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Przegląd i serwis niesprawnych zewnętrznych rolet okiennych na potrzeby MPK we Wrocławiu przy ul. Roosvelta 8-10\", \"region\": \"dolnoslaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1401926\", \"deadline_at\": \"2026-11-06T11:30:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T08:48:00Z\", \"notice_number\": \"1401926\"}",
            "content_hash": "f2ec30965d9a5a02a840b0747081a0588085ad867bacc5985f245ac68f8aac7d",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "9f42034a83dfafd383334a8d764cdc43ecde6b2e1455ba101eb3c7c0c2275fb8",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-02T13:46:01Z",
            "content": "{\"cpv\": \"39515410\", \"url\": \"https://platformazakupowa.pl/transakcja/1401926\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Przegląd i serwis niesprawnych zewnętrznych rolet okiennych na potrzeby MPK we Wrocławiu przy ul. Roosvelta 8-10\", \"region\": \"dolnoslaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1401926\", \"deadline_at\": \"2026-11-06T11:30:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T08:48:00Z\", \"notice_number\": \"1401926\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1401926\"}",
            "content_hash": "fe5dcce3f7b9992d2c3822aa6fc43d69769fb2838a85165bfa3819c28f20a736",
            "prev_hash": "9f42034a83dfafd383334a8d764cdc43ecde6b2e1455ba101eb3c7c0c2275fb8",
            "hash": "95bd6963b277f7db5897bf0a5c4e8b7367aed99593c493c866f96a7f2ec06829",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        }
    ]
}