{
    "tender_id": 3828171,
    "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": "2026-10-28T21:26:53Z",
            "content": "{\"cpv\": \"38434560\", \"url\": \"https://platformazakupowa.pl/transakcja/1382558\", \"buyer\": \"Uniwersytet Wrocławski\", \"title\": \"BZP.2710.49.2026.DB DOSTAWA ZESTAWÓW DO POMIARÓW ELEKTROCHEMICZNYCH WRAZ Z KOMPUTERAMI STERUJĄCYMI-2szt.\", \"region\": \"dolnoslaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1382558\", \"deadline_at\": \"2026-11-05T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T06:12:00Z\", \"notice_number\": \"1382558\"}",
            "content_hash": "37ee071bae6c8e5bb39fcaa87f8c3ce4970ce82c65c1280d2866009da8a57421",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "32b645f6403f97a861bae6e37463048dd1184cd42f679006bef5863106c6660a",
            "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\": \"38434560\", \"url\": \"https://platformazakupowa.pl/transakcja/1382558\", \"buyer\": \"Uniwersytet Wrocławski\", \"title\": \"BZP.2710.49.2026.DB DOSTAWA ZESTAWÓW DO POMIARÓW ELEKTROCHEMICZNYCH WRAZ Z KOMPUTERAMI STERUJĄCYMI-2szt.\", \"region\": \"dolnoslaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1382558\", \"deadline_at\": \"2026-11-05T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T06:12:00Z\", \"notice_number\": \"1382558\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1382558\"}",
            "content_hash": "14a444a303ef199d3e78976f67f57c5317c07d12cb3fbf05758051d26cc3377c",
            "prev_hash": "32b645f6403f97a861bae6e37463048dd1184cd42f679006bef5863106c6660a",
            "hash": "5a30925aad2bc7a8c43c9a2d9f3c11f86fef249c1c5d74d0cacd34265df8fc95",
            "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
            }
        }
    ]
}