{
    "tender_id": 3823452,
    "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": "2026-10-28T20:02:13Z",
            "content": "{\"cpv\": \"38436500\", \"url\": \"https://platforma-wodociagi.logintrade.net/portal,szczegolyZapytaniaOfertowe,bd1c56bbe5ea4bcdfe300249cab42073.html\", \"buyer\": \"Wodociągi Miasta Krakowa Spółka Akcyjna\", \"title\": \"Zakup mieszadła magnetycznego IKA TWISTER dla Pracownii Badań Ścieków Centralnego Laboratorium WMK. S.A.\", \"region\": \"malopolskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"MAŁOPOLSKIE\", \"source_id\": \"platforma-wodociagi-bd1c56bbe5ea4bcdfe300249cab42073\", \"deadline_at\": \"2026-11-06T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T06:22:00Z\"}",
            "content_hash": "022ee603094a666730706b9d134889e866a4d961df1c83c1ce8c0a0fa315d2f7",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "e2666ba578374fc6d58116f26184ab2060dbfe1e6743d7aeda0eb72591cc33de",
            "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": "2026-10-29T02:09:49Z",
            "content": "{\"cpv\": \"38436500\", \"url\": \"https://platforma-wodociagi.logintrade.net/portal,szczegolyZapytaniaOfertowe,bd1c56bbe5ea4bcdfe300249cab42073.html\", \"buyer\": \"Wodociągi Miasta Krakowa Spółka Akcyjna\", \"title\": \"Zakup mieszadła magnetycznego IKA TWISTER dla Pracownii Badań Ścieków Centralnego Laboratorium WMK. S.A\", \"region\": \"malopolskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"platforma-wodociagi-bd1c56bbe5ea4bcdfe300249cab42073\", \"deadline_at\": \"2026-11-06T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T10:18:00Z\"}",
            "content_hash": "974a65ac30f5e7ffd94be26a79ca832630d02d9b1f8f730ec738dc83a008380f",
            "prev_hash": "e2666ba578374fc6d58116f26184ab2060dbfe1e6743d7aeda0eb72591cc33de",
            "hash": "7dcb1a04cfbde285163c3ead7f1c11a57c78db26e482ab214c4e049e5f8f5207",
            "actor": null,
            "seal": null
        },
        {
            "version": 3,
            "recorded_at": "2026-10-29T04:45:42Z",
            "content": "{\"cpv\": \"38436500\", \"url\": \"https://platforma-wodociagi.logintrade.net/portal,szczegolyZapytaniaOfertowe,bd1c56bbe5ea4bcdfe300249cab42073.html\", \"buyer\": \"Wodociągi Miasta Krakowa Spółka Akcyjna\", \"title\": \"Zakup mieszadła magnetycznego IKA TWISTER dla Pracownii Badań Ścieków Centralnego Laboratorium WMK. S.A\", \"region\": \"malopolskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"platforma-wodociagi-bd1c56bbe5ea4bcdfe300249cab42073\", \"deadline_at\": \"2026-11-06T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T10:18:00Z\", \"procedure_url\": \"https://platforma-wodociagi.logintrade.net/portal,szczegolyZapytaniaOfertowe,bd1c56bbe5ea4bcdfe300249cab42073.html\"}",
            "content_hash": "82ae9a14ce68437f87d50ac8a54787443c3e77a360a6e3df36dfee0f4b80a917",
            "prev_hash": "7dcb1a04cfbde285163c3ead7f1c11a57c78db26e482ab214c4e049e5f8f5207",
            "hash": "6538cff13230d0c8b0b9ee44092ac3a9be09c2274a96e2bf34d6c88831ceef17",
            "actor": null,
            "seal": null
        }
    ]
}