{
    "tender_id": 3442565,
    "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": "2026-10-26T20:28:32Z",
            "content": "{\"cpv\": \"60130000\", \"url\": \"https://platformazakupowa.pl/transakcja/1397952\", \"buyer\": \"Gmina Września\", \"title\": \"ZP-271/ 68 / WOS / 2026 Dowozy szkolne i na zajęcia w WTZ w Gminie Września we Wrześni w 2027 roku\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1397952\", \"deadline_at\": \"2026-11-24T09:55:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T20:28:32Z\", \"notice_number\": \"1397952\"}",
            "content_hash": "b1b516a0c77e16025b68597d66cac215c31875728a4b12f926e04a0ba0e604f3",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "3ae173737556a7a45fd88caee0cdd280d5906ed196482ed8eefe4d7281fffb5e",
            "actor": null,
            "seal": {
                "id": 3,
                "digest": "1119fd2ade60dc88ac794742ff488b9486e8a488f9d77cc6d6a9444474dc1c77",
                "file": "https://tenderiq.pl/rejestr/pieczec-3.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-3.txt.ots",
                "bitcoin_block": 973309
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-26T23:36:09Z",
            "content": "{\"cpv\": \"60130000\", \"url\": \"https://platformazakupowa.pl/transakcja/1397952\", \"buyer\": \"Gmina Września\", \"title\": \"ZP-271/ 68 / WOS / 2026 Dowozy szkolne i na zajęcia w WTZ w Gminie Września we Wrześni w 2027 roku\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1397952\", \"deadline_at\": \"2026-11-24T09:55:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T20:28:32Z\", \"notice_number\": \"1397952\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1397952\"}",
            "content_hash": "43ca5b9c82eaf74dcefcfd2f29ce73beb8eca0462695a7e590e4d3b014626a3d",
            "prev_hash": "3ae173737556a7a45fd88caee0cdd280d5906ed196482ed8eefe4d7281fffb5e",
            "hash": "794204bdf6327e790fa259f9ff6f60690759491b1d791e4a08c9059805800b81",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-27T00:46:41Z",
            "content": "{\"cpv\": \"60130000\", \"url\": \"https://platformazakupowa.pl/transakcja/1397952\", \"buyer\": \"Gmina Września\", \"title\": \"ZP-271/ 68 / WOS / 2026 Dowozy szkolne i na zajęcia w WTZ w Gminie Września we Wrześni w 2027 roku\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1397952\", \"deadline_at\": \"2026-11-24T09:55:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T10:07:00Z\", \"notice_number\": \"1397952\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1397952\"}",
            "content_hash": "36ce1cb54f45aec5c9cc7c0ba86467ac9d4c1dd3ec38524eac71d26b5f39b0ef",
            "prev_hash": "794204bdf6327e790fa259f9ff6f60690759491b1d791e4a08c9059805800b81",
            "hash": "b1c2e72c1a443fd0096aa5b5ca28a26f23b9d69faa21d9ba651c317e4420af78",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        }
    ]
}