{
    "tender_id": 3348407,
    "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": "2026-10-26T08:31:43Z",
            "content": "{\"cpv\": \"90000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/739137-2026\", \"buyer\": \"Gmina Wrocław, w imieniu i na rzecz której działa Ekosystem Sp. z o.o.\", \"title\": \"Polska – Usługi odbioru ścieków, usuwania odpadów, czyszczenia/sprzątania i usługi ekologiczne – Odbiór, zbieranie, transport i zagospodarowanie odpadów komunalnych pochodzących z terenu Gminy Wrocław w obrębie Sektora 5\", \"region\": \"dolnoslaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"90513100\", \"90500000\", \"90511000\", \"90511100\", \"90533000\", \"90512000\", \"90600000\"], \"location\": \"PL514, POL, PL514, POL\", \"buyer_nip\": \"8992736747\", \"source_id\": \"739137-2026\", \"deadline_at\": \"2026-11-30T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "2ccd6d1018a89e3f46c17f5caa6569d89a27c7552acd384683c4a44ce4df4e4e",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "83f77fe8d222161bbd11860c474f496978b1e4b7ebc2850666b33485b279a738",
            "actor": null,
            "seal": {
                "id": 3,
                "digest": "1119fd2ade60dc88ac794742ff488b9486e8a488f9d77cc6d6a9444474dc1c77",
                "file": "https://tenderiq.pl/rejestr/pieczec-3.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-3.txt.ots",
                "bitcoin_block": 973309
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-26T23:36:21Z",
            "content": "{\"cpv\": \"90000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/739137-2026\", \"buyer\": \"Gmina Wrocław, w imieniu i na rzecz której działa Ekosystem Sp. z o.o.\", \"title\": \"Polska – Usługi odbioru ścieków, usuwania odpadów, czyszczenia/sprzątania i usługi ekologiczne – Odbiór, zbieranie, transport i zagospodarowanie odpadów komunalnych pochodzących z terenu Gminy Wrocław w obrębie Sektora 5\", \"region\": \"dolnoslaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"90513100\", \"90500000\", \"90511000\", \"90511100\", \"90533000\", \"90512000\", \"90600000\"], \"location\": \"PL514, POL, PL514, POL\", \"buyer_nip\": \"8992736747\", \"source_id\": \"739137-2026\", \"deadline_at\": \"2026-11-30T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\", \"procedure_url\": \"https://ted.europa.eu/pl/notice/-/detail/737225-2026\"}",
            "content_hash": "8e6e434fe45437bce49b901725d592f6c8040e0d17a30764791a140190315c25",
            "prev_hash": "83f77fe8d222161bbd11860c474f496978b1e4b7ebc2850666b33485b279a738",
            "hash": "607c85e6d79b028cfef21a83b52bc52130b6d557130c7bb66d542d6b60a57da8",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-27T03:33:31Z",
            "content": "{\"cpv\": \"90000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/739137-2026\", \"buyer\": \"Gmina Wrocław, w imieniu i na rzecz której działa Ekosystem Sp. z o.o.\", \"title\": \"Polska – Usługi odbioru ścieków, usuwania odpadów, czyszczenia/sprzątania i usługi ekologiczne – Odbiór, zbieranie, transport i zagospodarowanie odpadów komunalnych pochodzących z terenu Gminy Wrocław w obrębie Sektora 5\", \"region\": \"dolnoslaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"90513100\", \"90500000\", \"90511000\", \"90511100\", \"90533000\", \"90512000\", \"90600000\"], \"location\": \"PL514, POL, PL514, POL\", \"buyer_nip\": \"8992736747\", \"source_id\": \"739137-2026\", \"deadline_at\": \"2026-11-30T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\", \"procedure_url\": \"https://ekosystem.logintrade.net/zapytania_email,236656,1e368f592210bd83d44d3282f1e2254a.html\"}",
            "content_hash": "29fa0e7d63d973ac1e0b13d3c339b4d29716fdbd4b199080bae77d2ca116f836",
            "prev_hash": "607c85e6d79b028cfef21a83b52bc52130b6d557130c7bb66d542d6b60a57da8",
            "hash": "172566e6afb3a5619aaf6a47d0b1c014fdc39c3a508e75885d0aefeab2edb9de",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        }
    ]
}