{
    "tender_id": 6192006,
    "check": {
        "ok": true,
        "versions": 4,
        "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": "2026-11-09T20:44:54Z",
            "content": "{\"cpv\": \"18100000\", \"url\": \"https://platformazakupowa.pl/transakcja/1406537\", \"buyer\": \"Szkoła Policji w Słupsku\", \"title\": \"Obuwie ochronne robocze\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1406537\", \"deadline_at\": \"2026-11-17T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-09T20:44:55Z\", \"notice_number\": \"1406537\"}",
            "content_hash": "405b69ccdde8c94c7df8d352f6323014e283dbec8710af6f6b45f9eb125116ab",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "7fb2dfee7a999cbf8cded39dd34bcfb19daf74dd2bd30e175346a78be4f402c6",
            "actor": null,
            "seal": {
                "id": 17,
                "digest": "ff8cb03aa08e7c772155df1b20fd8d51c1cab7cd026d5e31aa3d74d6ab70c7b2",
                "file": "https://tenderiq.pl/rejestr/pieczec-17.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-17.txt.ots",
                "bitcoin_block": 975226
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-09T20:45:39Z",
            "content": "{\"cpv\": \"18100000\", \"url\": \"https://platformazakupowa.pl/transakcja/1406537\", \"buyer\": \"Szkoła Policji w Słupsku\", \"title\": \"Obuwie ochronne robocze\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1406537\", \"deadline_at\": \"2026-11-17T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-09T20:44:55Z\", \"notice_number\": \"1406537\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1404519\"}",
            "content_hash": "81aae20d3d74061152d5f8bd1caa45d50399dc7259f7a9c5f2b8c11d22b595d9",
            "prev_hash": "7fb2dfee7a999cbf8cded39dd34bcfb19daf74dd2bd30e175346a78be4f402c6",
            "hash": "4e4d93c9d941dbf39a0aff627306de13dd62f6ad1542b4d33b32aa06892fc722",
            "actor": null,
            "seal": {
                "id": 17,
                "digest": "ff8cb03aa08e7c772155df1b20fd8d51c1cab7cd026d5e31aa3d74d6ab70c7b2",
                "file": "https://tenderiq.pl/rejestr/pieczec-17.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-17.txt.ots",
                "bitcoin_block": 975226
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-09T23:37:17Z",
            "content": "{\"cpv\": \"18100000\", \"url\": \"https://platformazakupowa.pl/transakcja/1406537\", \"buyer\": \"Szkoła Policji w Słupsku\", \"title\": \"Obuwie ochronne robocze\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1406537\", \"deadline_at\": \"2026-11-17T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-09T20:44:55Z\", \"notice_number\": \"1406537\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3866542/dostawa-nakladek-antyposlizgowych-na-obuwie-robocze-i-ochronne-przeznaczone-do-uzytkowania-w-warunkach-zimowych-oraz-na\"}",
            "content_hash": "cf1d709327e217760e4b1d308d7691ca0e11c136149428a45c6f2da40df44417",
            "prev_hash": "4e4d93c9d941dbf39a0aff627306de13dd62f6ad1542b4d33b32aa06892fc722",
            "hash": "461952e74cbd2315856a7bf12a86d91f93ddd092df7b6d04794267628ca4c4e0",
            "actor": null,
            "seal": null
        },
        {
            "version": 4,
            "recorded_at": "2026-11-09T23:37:23Z",
            "content": "{\"cpv\": \"18100000\", \"url\": \"https://platformazakupowa.pl/transakcja/1406537\", \"buyer\": \"Szkoła Policji w Słupsku\", \"title\": \"Obuwie ochronne robocze\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1406537\", \"deadline_at\": \"2026-11-17T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-09T11:38:00Z\", \"notice_number\": \"1406537\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3866542/dostawa-nakladek-antyposlizgowych-na-obuwie-robocze-i-ochronne-przeznaczone-do-uzytkowania-w-warunkach-zimowych-oraz-na\"}",
            "content_hash": "57f9d2505ccf1a9f1c75d414cb91bcd3cc61c6c05e7e064ff8b0f1ebab6ffe64",
            "prev_hash": "461952e74cbd2315856a7bf12a86d91f93ddd092df7b6d04794267628ca4c4e0",
            "hash": "4239fbaabcb789cf6a3f352280c8e9f3d55dca858b054bb103b3b7507e53e3bb",
            "actor": null,
            "seal": null
        }
    ]
}