{
    "tender_id": 3828084,
    "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": "2026-10-28T21:18:24Z",
            "content": "{\"cpv\": \"77211400\", \"url\": \"https://platformazakupowa.pl/transakcja/1398939\", \"buyer\": \"Zarząd Budynków Komunalnych w Elblągu\", \"title\": \"ZP.264.67.2026.AŻ Usługa pielęgnacji, redukcji i formowania koron drzew i krzewów oraz wycinki i nasadzeń.\", \"region\": \"warminsko-mazurskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1398939\", \"deadline_at\": \"2026-11-03T10:15:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1398939\"}",
            "content_hash": "7b8929f1f6bf0c6bac5d356ab0847cc611af57a1d2f51bbfacac9875ae08367c",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "75c2d50330f56d07daf0887edd2da17122de3641269d761a2e250a22ea05b5d9",
            "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": "2026-10-28T21:45:31Z",
            "content": "{\"cpv\": \"77211400\", \"url\": \"https://platformazakupowa.pl/transakcja/1398939\", \"buyer\": \"Zarząd Budynków Komunalnych w Elblągu\", \"title\": \"ZP.264.67.2026.AŻ Usługa pielęgnacji, redukcji i formowania koron drzew i krzewów oraz wycinki i nasadzeń.\", \"region\": \"warminsko-mazurskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1398939\", \"deadline_at\": \"2026-11-03T10:15:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1398939\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1398939\"}",
            "content_hash": "7c792fac45eaa7b16f76534405a443c14fd14c8a89e625b2eb2b48b191d3631f",
            "prev_hash": "75c2d50330f56d07daf0887edd2da17122de3641269d761a2e250a22ea05b5d9",
            "hash": "eafc49912f95037de399291a8f5c78741373ba19817d787f5c85118aa5366d8b",
            "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
            }
        }
    ]
}