{
    "tender_id": 6995769,
    "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": "2026-11-13T02:29:12Z",
            "content": "{\"cpv\": \"44190000\", \"url\": \"https://sefako.logintrade.net/portal,szczegolyAukcje,c3c5df1e52434bbff44143326fb03fb9.html\", \"buyer\": \"SEFAKO Spółka Akcyjna\", \"title\": \"MATERIAŁY ŚCIERNE\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"52f6fa5e3d63e3cf388c98768eb3ccce1ae1b17d\", \"deadline_at\": \"2026-11-16T12:20:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-12T14:57:00Z\"}",
            "content_hash": "52cb53d5d44fa32a848d9d3201ea162e8dd0d585d9188ba27d4527c38dc05593",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2f759f143e021680f5065e5f3f81fd5a55fd45625f0a4da70b2989a0012cd946",
            "actor": null,
            "seal": {
                "id": 21,
                "digest": "9f5cc628e20cec4e7a4adf4979e6b8d5416f11dcd193f37905493253afb6d07f",
                "file": "https://tenderiq.pl/rejestr/pieczec-21.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-21.txt.ots",
                "bitcoin_block": 975729
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-13T02:45:59Z",
            "content": "{\"cpv\": \"44190000\", \"url\": \"https://sefako.logintrade.net/portal,szczegolyAukcje,c3c5df1e52434bbff44143326fb03fb9.html\", \"buyer\": \"SEFAKO Spółka Akcyjna\", \"title\": \"MATERIAŁY ŚCIERNE\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"52f6fa5e3d63e3cf388c98768eb3ccce1ae1b17d\", \"deadline_at\": \"2026-11-16T12:20:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-12T14:57:00Z\", \"procedure_url\": \"https://sefako.logintrade.net/portal,szczegolyAukcje,c3c5df1e52434bbff44143326fb03fb9.html\"}",
            "content_hash": "7f2348fd205e32b44239e4aaa20bca2df753f7ac8cd0f250d16c9e2a7e289cfd",
            "prev_hash": "2f759f143e021680f5065e5f3f81fd5a55fd45625f0a4da70b2989a0012cd946",
            "hash": "ab55666a1c75bb7cd3351014c1f0fa002bde5066b64a5a9eeeb17a90e232c87c",
            "actor": null,
            "seal": {
                "id": 21,
                "digest": "9f5cc628e20cec4e7a4adf4979e6b8d5416f11dcd193f37905493253afb6d07f",
                "file": "https://tenderiq.pl/rejestr/pieczec-21.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-21.txt.ots",
                "bitcoin_block": 975729
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-13T03:41:34Z",
            "content": "{\"cpv\": \"44190000\", \"url\": \"https://sefako.logintrade.net/portal,szczegolyAukcje,c3c5df1e52434bbff44143326fb03fb9.html\", \"buyer\": \"SEFAKO Spółka Akcyjna\", \"title\": \"MATERIAŁY ŚCIERNE\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"52f6fa5e3d63e3cf388c98768eb3ccce1ae1b17d\", \"deadline_at\": \"2026-11-16T12:20:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-12T14:57:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3892438/materia-y-scierne\"}",
            "content_hash": "72a15d0cc6f3d20296bc16c739f0bd4f03505aff16a034273b74c21291d47d8a",
            "prev_hash": "ab55666a1c75bb7cd3351014c1f0fa002bde5066b64a5a9eeeb17a90e232c87c",
            "hash": "879ea937ce09c9dbe7ca6340463dfb4a099a400b82d170792c0408accfdd5de2",
            "actor": null,
            "seal": {
                "id": 21,
                "digest": "9f5cc628e20cec4e7a4adf4979e6b8d5416f11dcd193f37905493253afb6d07f",
                "file": "https://tenderiq.pl/rejestr/pieczec-21.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-21.txt.ots",
                "bitcoin_block": 975729
            }
        }
    ]
}