{
    "tender_id": 3378759,
    "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": "2026-10-26T10:13:03Z",
            "content": "{\"cpv\": \"66512200\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/737315-2026\", \"buyer\": \"Autorità di Regolazione per Energia Reti e Ambiente - ARERA\", \"title\": \"Włochy – Usługi ubezpieczenia zdrowotnego – Servizio per la gestione, e l’assunzione della contraenza, dell’intero programma assicurativo di assistenza sanitaria integrativa, infortuni e malattia proposto a partire dal 2027 a favore del personale di ARERA\", \"source\": \"ted_ita\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"ITC4C, ITA, ITC4C, ITA\", \"source_id\": \"737315-2026\", \"deadline_at\": \"2026-11-26T11:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "f8b9d1dc7c5aeb162472474002bb97cadb38f74693f5d9123042bf07d76aa31d",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "c08da80e83ceffe807ae146a02030f33bcdab22d401dec59df7d62c032228e1e",
            "actor": null,
            "seal": {
                "id": 3,
                "digest": "1119fd2ade60dc88ac794742ff488b9486e8a488f9d77cc6d6a9444474dc1c77",
                "file": "https://tenderiq.pl/rejestr/pieczec-3.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-3.txt.ots",
                "bitcoin_block": 973309
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-26T12:20:16Z",
            "content": "{\"cpv\": \"66512200\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/737315-2026\", \"buyer\": \"Autorità di Regolazione per Energia Reti e Ambiente - ARERA\", \"title\": \"Włochy – Usługi ubezpieczenia zdrowotnego – Usługa dla zarządzania i przyjęcia składki ubezpieczeniowej na świadczenia pomocy medycznej, wypadki i choroby proponowane od 2027 roku dla pracowników ARERA\", \"source\": \"ted_ita\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"ITC4C, ITA, ITC4C, ITA\", \"source_id\": \"737315-2026\", \"deadline_at\": \"2026-11-26T11:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "cfcc3e575bb661a83d1292e4055cfd79baca5bd5e71a5f8941a08aaf8f0cd50c",
            "prev_hash": "c08da80e83ceffe807ae146a02030f33bcdab22d401dec59df7d62c032228e1e",
            "hash": "7ab6bf3c08b9c244c56f2fa0fb9ffcc5e7b656a92d9a184437ea9de5a6478767",
            "actor": null,
            "seal": {
                "id": 3,
                "digest": "1119fd2ade60dc88ac794742ff488b9486e8a488f9d77cc6d6a9444474dc1c77",
                "file": "https://tenderiq.pl/rejestr/pieczec-3.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-3.txt.ots",
                "bitcoin_block": 973309
            }
        }
    ]
}