{
    "tender_id": 5248554,
    "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": "2026-11-04T20:46:22Z",
            "content": "{\"cpv\": \"77200000\", \"url\": \"https://platformazakupowa.pl/transakcja/1393328\", \"buyer\": \"Nadleśnictwo Baligród\", \"title\": \"ZG.270.1.11.2026 „Wykonywanie usług z zakresu gospodarki leśnej na terenie Nadleśnictwa Baligród w roku 2027.”\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1393328\", \"deadline_at\": \"2026-11-24T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T20:46:23Z\", \"notice_number\": \"1393328\"}",
            "content_hash": "b670e01bceb02a12f8ff48d0579b29ff2824b95f990f06ecfd748bb1a0ac3232",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "bce9b669ea3ae4199becb55b33544b5fb33c8f2c87a0f3b5d0a5edfa26fb24ad",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-04T21:45:38Z",
            "content": "{\"cpv\": \"77200000\", \"url\": \"https://platformazakupowa.pl/transakcja/1393328\", \"buyer\": \"Nadleśnictwo Baligród\", \"title\": \"ZG.270.1.11.2026 „Wykonywanie usług z zakresu gospodarki leśnej na terenie Nadleśnictwa Baligród w roku 2027.”\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1393328\", \"deadline_at\": \"2026-11-24T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T20:46:23Z\", \"notice_number\": \"1393328\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1393328\"}",
            "content_hash": "0443209a84f00ab2896f9fae9b19ece57d8cd343706c31adc3c1fb60a5ca0349",
            "prev_hash": "bce9b669ea3ae4199becb55b33544b5fb33c8f2c87a0f3b5d0a5edfa26fb24ad",
            "hash": "16de4cba8c09757747a5a222b23e0a3c2992ad2dbe3d72dddc37709b080d798f",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-05T02:49:50Z",
            "content": "{\"cpv\": \"77200000\", \"url\": \"https://platformazakupowa.pl/transakcja/1393328\", \"buyer\": \"Nadleśnictwo Baligród\", \"title\": \"ZG.270.1.11.2026 „Wykonywanie usług z zakresu gospodarki leśnej na terenie Nadleśnictwa Baligród w roku 2027.”\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1393328\", \"deadline_at\": \"2026-11-24T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T07:23:00Z\", \"notice_number\": \"1393328\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1393328\"}",
            "content_hash": "d828ee291743fdb194b1dfa9871ee27bc41b512801cef361449c2c5906d35670",
            "prev_hash": "16de4cba8c09757747a5a222b23e0a3c2992ad2dbe3d72dddc37709b080d798f",
            "hash": "bf5aa12825bbd7f386a50fc54764c61fe53d18abfda4570a7bca31800ace4c21",
            "actor": null,
            "seal": null
        }
    ]
}