{
    "tender_id": 4138659,
    "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": "2026-10-30T13:43:37Z",
            "content": "{\"cpv\": \"32324600\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3863850/wymiana-paneli-pir-w-scianie-hali-zakladowej\", \"buyer\": \"MASTER - Odpady i Energia Sp. z o.o.\", \"title\": \"wymiana paneli PIR w ścianie hali zakładowej\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3863850\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:37Z\"}",
            "content_hash": "82934cfc53668dd7e920078006121822e347343de6074f797ad1cdf4b12481a6",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "db1be5854447a9c1d68d2b905d73fe4e4854633e81f31c3581b7b7bfd9192268",
            "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
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-30T13:45:38Z",
            "content": "{\"cpv\": \"32324600\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3863850/wymiana-paneli-pir-w-scianie-hali-zakladowej\", \"buyer\": \"MASTER - Odpady i Energia Sp. z o.o.\", \"title\": \"wymiana paneli PIR w ścianie hali zakładowej\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3863850\", \"deadline_at\": \"2026-11-06T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:37Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1401403\"}",
            "content_hash": "3cbe5e0b8540551168a02ca2d99b2f70e44840b5b6cff5d870b1fa943342230c",
            "prev_hash": "db1be5854447a9c1d68d2b905d73fe4e4854633e81f31c3581b7b7bfd9192268",
            "hash": "de91ccc5165edca7a6cd6e302c8f1ed395e3e2b7b2db7c08e133ed7a725c1a12",
            "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
            }
        }
    ]
}