{
    "tender_id": 3757289,
    "check": {
        "ok": true,
        "versions": 6,
        "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": "2026-10-28T11:31:18Z",
            "content": "{\"cpv\": \"44333000\", \"url\": \"https://hutabankowa.logintrade.net/portal,szczegolyZapytaniaOfertowe,3e2ef9c4769a97310011c005ca972298.html\", \"buyer\": \"Huta Bankowa Sp. z o.o.\", \"title\": \"Prowadnik drutu, rurka wprowadzająca [12768]\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"śląskie\", \"source_id\": \"hutabankowa-3e2ef9c4769a97310011c005ca972298\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T11:00:00Z\"}",
            "content_hash": "44aab0de9c4cffefa6fe27b13a2844bedbeab25935104c1d3ae3dbc47f40351e",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2c86d1cfa9606b02794c8d98af9463e230a48f4d0802a2a2d0ae902f4216b225",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-29T02:09:31Z",
            "content": "{\"cpv\": \"44333000\", \"url\": \"https://hutabankowa.logintrade.net/portal,szczegolyZapytaniaOfertowe,3e2ef9c4769a97310011c005ca972298.html\", \"buyer\": \"Huta Bankowa Sp. z o.o\", \"title\": \"Prowadnik drutu, rurka wprowadzająca [12768]\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"hutabankowa-3e2ef9c4769a97310011c005ca972298\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T13:22:00Z\"}",
            "content_hash": "4408f41b6e19df9353fb8e171cc4614ee98b26eb3575992fa33155984e900bcf",
            "prev_hash": "2c86d1cfa9606b02794c8d98af9463e230a48f4d0802a2a2d0ae902f4216b225",
            "hash": "f2172b631bf1c5d58e4441e553d167b141e9384374d01e358ff23251a6a41e79",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-29T04:45:42Z",
            "content": "{\"cpv\": \"44333000\", \"url\": \"https://hutabankowa.logintrade.net/portal,szczegolyZapytaniaOfertowe,3e2ef9c4769a97310011c005ca972298.html\", \"buyer\": \"Huta Bankowa Sp. z o.o\", \"title\": \"Prowadnik drutu, rurka wprowadzająca [12768]\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"hutabankowa-3e2ef9c4769a97310011c005ca972298\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T13:22:00Z\", \"procedure_url\": \"https://hutabankowa.logintrade.net/portal,szczegolyZapytaniaOfertowe,3e2ef9c4769a97310011c005ca972298.html\"}",
            "content_hash": "20520668d32054ecc6a61dd7dbad715dff3209d0d01fdae40402cc9cc5c00aaa",
            "prev_hash": "f2172b631bf1c5d58e4441e553d167b141e9384374d01e358ff23251a6a41e79",
            "hash": "f2260bd8e74d9417660abc47fd7d88a11e23af321735a3884a7a0d1ab8e83d0c",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-10-29T17:45:22Z",
            "content": "{\"cpv\": \"44333000\", \"url\": \"https://hutabankowa.logintrade.net/portal,szczegolyZapytaniaOfertowe,3e2ef9c4769a97310011c005ca972298.html\", \"buyer\": \"Huta Bankowa Sp. z o.o\", \"title\": \"Prowadnik drutu, rurka wprowadzająca [12768]\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"hutabankowa-3e2ef9c4769a97310011c005ca972298\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T13:22:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3859153/prowadnik-drutu-rurka-wprowadzajaca-12768-\"}",
            "content_hash": "5c4548b029746a175ceccf04b293dc8cad287683ca90f3782b3058f058bd009c",
            "prev_hash": "f2260bd8e74d9417660abc47fd7d88a11e23af321735a3884a7a0d1ab8e83d0c",
            "hash": "85702a32e8ffdd9bac4162dfcde568d2604ea8e2a3f8d679ccb7e836649ea32a",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 5,
            "recorded_at": "2026-10-29T19:45:58Z",
            "content": "{\"cpv\": \"44333000\", \"url\": \"https://hutabankowa.logintrade.net/portal,szczegolyZapytaniaOfertowe,3e2ef9c4769a97310011c005ca972298.html\", \"buyer\": \"Huta Bankowa Sp. z o.o\", \"title\": \"Prowadnik drutu, rurka wprowadzająca [12768]\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"hutabankowa-3e2ef9c4769a97310011c005ca972298\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T13:22:00Z\", \"procedure_url\": \"https://hutabankowa.logintrade.net/portal,szczegolyZapytaniaOfertowe,3e2ef9c4769a97310011c005ca972298.html\"}",
            "content_hash": "20520668d32054ecc6a61dd7dbad715dff3209d0d01fdae40402cc9cc5c00aaa",
            "prev_hash": "85702a32e8ffdd9bac4162dfcde568d2604ea8e2a3f8d679ccb7e836649ea32a",
            "hash": "f1712e1fcf2b044dfd700f12ba3d45363c520cc1149a3f6b47946bc247fd50f0",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 6,
            "recorded_at": "2026-10-30T06:26:14Z",
            "content": "{\"cpv\": \"44333000\", \"url\": \"https://hutabankowa.logintrade.net/portal,szczegolyZapytaniaOfertowe,3e2ef9c4769a97310011c005ca972298.html\", \"buyer\": \"Huta Bankowa Sp. z o.o.\", \"title\": \"Prowadnik drutu, rurka wprowadzająca [12768]\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"śląskie\", \"source_id\": \"hutabankowa-3e2ef9c4769a97310011c005ca972298\", \"deadline_at\": \"2026-10-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T11:00:00Z\", \"procedure_url\": \"https://hutabankowa.logintrade.net/portal,szczegolyZapytaniaOfertowe,3e2ef9c4769a97310011c005ca972298.html\"}",
            "content_hash": "0472df4b81b2a90d11f5b05e44a0531a9ef5a775257778a46596f60fd26be244",
            "prev_hash": "f1712e1fcf2b044dfd700f12ba3d45363c520cc1149a3f6b47946bc247fd50f0",
            "hash": "061747eaa3ef42a55d3b39d34a8a10c5e81a1aa1dca94a8a4ac74bdb62d7d741",
            "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
            }
        }
    ]
}