{
    "tender_id": 3915897,
    "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": "2026-10-29T07:56:45Z",
            "content": "{\"cpv\": \"45453000\", \"url\": \"https://zzk-wroc.logintrade.net/zapytania_email,243770,55aae395894e04f39ca6b962fd5efff5.html\", \"buyer\": \"ZARZĄD ZASOBU KOMUNALNEGO\", \"title\": \"ZZK - NZ/241/3400/121/26 Termomodernizacja budynku mieszkalnego wielorodzinnego przy ul. Ptasiej 13 we Wrocławiu.\", \"source\": \"zzk_wroc_logintrade\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"243770-55aae395894e04f39ca6b962fd5efff5\", \"deadline_at\": \"2026-11-30T10:30:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:24:00Z\"}",
            "content_hash": "31c0949d4a60455f6f47ee411873f6e0524fffdee9b5e2c41c5fefa06ed18d7d",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "5c81c0d692301ace971ea7488f52201e7251d38d5dca7a73d3bfaa79833272e2",
            "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": 2,
            "recorded_at": "2026-10-29T08:45:24Z",
            "content": "{\"cpv\": \"45453000\", \"url\": \"https://zzk-wroc.logintrade.net/zapytania_email,243770,55aae395894e04f39ca6b962fd5efff5.html\", \"buyer\": \"ZARZĄD ZASOBU KOMUNALNEGO\", \"title\": \"ZZK - NZ/241/3400/121/26 Termomodernizacja budynku mieszkalnego wielorodzinnego przy ul. Ptasiej 13 we Wrocławiu.\", \"source\": \"zzk_wroc_logintrade\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"243770-55aae395894e04f39ca6b962fd5efff5\", \"deadline_at\": \"2026-11-30T10:30:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:24:00Z\", \"procedure_url\": \"https://zzk-wroc.logintrade.net/zapytania_email,243657,30b16291dc2c4e0141226c036e9f3fe5.html\"}",
            "content_hash": "45954dc490e393fe50f76e82f093c5ac44a3df01e39ce6ee325a8242b347ca42",
            "prev_hash": "5c81c0d692301ace971ea7488f52201e7251d38d5dca7a73d3bfaa79833272e2",
            "hash": "72819c686f8d3768fd2134b710116aed1a2e4de695c27349a4b2cf2a901d5fb4",
            "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
            }
        }
    ]
}