{
    "tender_id": 3430855,
    "check": {
        "ok": true,
        "versions": 4,
        "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": "2026-10-26T19:11:51Z",
            "content": "{\"cpv\": \"85312100\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296076\", \"buyer\": \"POROZUMIENIE AUTYZM-POLSKA\", \"title\": \"Ekspert ds. polityki społecznej, deinstytucjonalizacji\", \"region\": \"mazowieckie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"296076\", \"deadline_at\": \"2026-11-03T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-26T00:00:00Z\"}",
            "content_hash": "270008c27e8625a97400674e4ca09a96f2dad3afed37379c40be3775bcef114f",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "cf121507fbb8a15ecd7011c6f9a5b0a71814d8065bc05e37f83079d3f88a93fd",
            "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": "2026-10-27T11:34:15Z",
            "content": "{\"cpv\": \"85312100\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296076\", \"buyer\": \"POROZUMIENIE AUTYZM-POLSKA\", \"title\": \"Ekspert ds. polityki społecznej, deinstytucjonalizacji\", \"region\": \"mazowieckie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"296076\", \"deadline_at\": \"2026-11-03T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-26T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3854160/ekspert-ds-polityki-spolecznej-deinstytucjonalizacji\"}",
            "content_hash": "5d0191e0f303403ea6d9f869792173a78af9a1bab01e55f05288b1a211757a91",
            "prev_hash": "cf121507fbb8a15ecd7011c6f9a5b0a71814d8065bc05e37f83079d3f88a93fd",
            "hash": "bc0f8dee0053780cf374eda3dc373db2cff13702b7f37d0a6925a866316f5fcd",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-28T22:45:37Z",
            "content": "{\"cpv\": \"85312100\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296076\", \"buyer\": \"POROZUMIENIE AUTYZM-POLSKA\", \"title\": \"Ekspert ds. polityki społecznej, deinstytucjonalizacji\", \"region\": \"mazowieckie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"296076\", \"deadline_at\": \"2026-11-03T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-26T00:00:00Z\", \"procedure_url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296076\"}",
            "content_hash": "821a48ed4a09f8bf4e473ed538cf9c2bdcb1053030ac00097db34d1e48307baf",
            "prev_hash": "bc0f8dee0053780cf374eda3dc373db2cff13702b7f37d0a6925a866316f5fcd",
            "hash": "13d4a55f3175be1fc75465453400f611645658d7468fa1f8d45fee913ee76926",
            "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": 4,
            "recorded_at": "2026-10-29T05:46:05Z",
            "content": "{\"cpv\": \"85312100\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296076\", \"buyer\": \"POROZUMIENIE AUTYZM-POLSKA\", \"title\": \"Ekspert ds. polityki społecznej, deinstytucjonalizacji\", \"region\": \"mazowieckie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Warszawa, mazowieckie\", \"source_id\": \"296076\", \"deadline_at\": \"2026-11-03T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-26T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3854160/ekspert-ds-polityki-spolecznej-deinstytucjonalizacji\"}",
            "content_hash": "5d0191e0f303403ea6d9f869792173a78af9a1bab01e55f05288b1a211757a91",
            "prev_hash": "13d4a55f3175be1fc75465453400f611645658d7468fa1f8d45fee913ee76926",
            "hash": "1bf0fc694a6f6a8c14c98c7fa43f4bcef0de38f92caed420c7b9529f6021e577",
            "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
            }
        }
    ]
}