{
    "tender_id": 4016143,
    "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": "2026-10-29T19:04:31Z",
            "content": "{\"cpv\": \"39711100\", \"url\": \"https://platformazakupowa.pl/transakcja/1400549\", \"buyer\": \"Biuro Rzecznika Praw Obywatelskich\", \"title\": \"Ekspres do kawy 1 szt. filtr, płyn do czyszczenia systemu mleka, tabletki odkamieniające\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400549\", \"deadline_at\": \"2026-10-30T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T11:07:11Z\", \"notice_number\": \"1400549\"}",
            "content_hash": "014b8d41f4f04440c41577f2fd1d945a06c720820c59aefecbb296fd9d44a106",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2b0b64ecc18acd7c8b02eb7f6a55199ccdad87989ec9c0fb7041bbefe6ae63fc",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-29T19:46:04Z",
            "content": "{\"cpv\": \"39711100\", \"url\": \"https://platformazakupowa.pl/transakcja/1400549\", \"buyer\": \"Biuro Rzecznika Praw Obywatelskich\", \"title\": \"Ekspres do kawy 1 szt. filtr, płyn do czyszczenia systemu mleka, tabletki odkamieniające\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400549\", \"deadline_at\": \"2026-10-30T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T11:07:11Z\", \"notice_number\": \"1400549\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1400549\"}",
            "content_hash": "12f0664c1404d5920a46bc4899c40744c8f3529aa46c83a8cb41d4265a2dfb15",
            "prev_hash": "2b0b64ecc18acd7c8b02eb7f6a55199ccdad87989ec9c0fb7041bbefe6ae63fc",
            "hash": "61ee9c805a0b950d7a9bf9208089c8c7a1295eeb4d1dccbdf5a81dc736f796fe",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        }
    ]
}