{
    "tender_id": 4029331,
    "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": "2026-10-29T21:28:05Z",
            "content": "{\"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/533170/swiadczenie-uslug-transportu-drogowego-dla-potrzeb-pwpw-s-a\", \"buyer\": \"POLSKA WYTWÓRNIA PAPIERÓW WARTOŚCIOWYCH S.A.\", \"title\": \"Świadczenie usług transportu drogowego dla potrzeb PWPW S.A.\", \"region\": \"mazowieckie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"MAZOWIECKIE\", \"source_id\": \"533170\", \"deadline_at\": \"2026-11-30T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T11:00:00Z\"}",
            "content_hash": "f1a339c33f2153b6c7a969a557726a2b3b6bbb289c9e1a1d645b45eca80f738f",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "d320dde3b013b3c99f65e1585a9f6226477adbc98f5b6d08ff6e811d71dfd481",
            "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": "2026-10-29T21:45:23Z",
            "content": "{\"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/533170/swiadczenie-uslug-transportu-drogowego-dla-potrzeb-pwpw-s-a\", \"buyer\": \"POLSKA WYTWÓRNIA PAPIERÓW WARTOŚCIOWYCH S.A.\", \"title\": \"Świadczenie usług transportu drogowego dla potrzeb PWPW S.A.\", \"region\": \"mazowieckie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"MAZOWIECKIE\", \"source_id\": \"533170\", \"deadline_at\": \"2026-11-30T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T11:00:00Z\", \"procedure_url\": \"https://pwpw.eb2b.com.pl/open-preview-auction.html/533170/swiadczenie-uslug-transportu-drogowego-dla-potrzeb-pwpw-s-a\"}",
            "content_hash": "94c9d3ea52d9ecd7b7bf2336ea992f4658911bd62abdbdbdf88003e3042d46f3",
            "prev_hash": "d320dde3b013b3c99f65e1585a9f6226477adbc98f5b6d08ff6e811d71dfd481",
            "hash": "d8bdadb63dac99d297412ddf8f4da8febaae1ccbe87c9ace3e40a1d0a4a74312",
            "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
            }
        }
    ]
}