{
    "tender_id": 3544433,
    "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": "2026-10-27T09:52:31Z",
            "content": "{\"url\": \"https://polregio.eb2b.com.pl/open-preview-auction.html/535736/zapytanie-o-informacje-cenowa-rfi-akumulator-do-ciagnika-szynowego-el-16\", \"buyer\": \"POLREGIO S.A.\", \"title\": \"Zapytanie o informację cenową (RFI): Akumulator do ciągnika szynowego EL-16\", \"region\": \"lubelskie\", \"source\": \"polregio_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"LUBELSKIE\", \"source_id\": \"535736\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T09:00:00Z\"}",
            "content_hash": "67ad366d29d0c2a06341172aaa6b89e259dbd877b13989c22d915b7a0dc15e8c",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "96bf29850795aaaaba1edc4884b2f24574aa1a78a63a9b86560802d91a280b95",
            "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": 2,
            "recorded_at": "2026-10-27T15:32:22Z",
            "content": "{\"url\": \"https://polregio.eb2b.com.pl/open-preview-auction.html/535736/zapytanie-o-informacje-cenowa-rfi-akumulator-do-ciagnika-szynowego-el-16\", \"buyer\": \"POLREGIO S.A.\", \"title\": \"Zapytanie o informację cenową (RFI): Akumulator do ciągnika szynowego EL-16\", \"region\": \"lubelskie\", \"source\": \"polregio_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"LUBELSKIE\", \"source_id\": \"535736\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T09:00:00Z\", \"procedure_url\": \"https://polregio.eb2b.com.pl/open-preview-auction.html/535736/zapytanie-o-informacje-cenowa-rfi-akumulator-do-ciagnika-szynowego-el-16\"}",
            "content_hash": "d293dbafa7144f70bd24a6c100f02c198a7c3c7331b6339308663aae1c4ab7f1",
            "prev_hash": "96bf29850795aaaaba1edc4884b2f24574aa1a78a63a9b86560802d91a280b95",
            "hash": "e643dd63ec216d2b70635c50f38b38ca608d004039b585959c5d3c779e2c671a",
            "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
            }
        }
    ]
}