{
    "tender_id": 1426686,
    "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": "2026-10-24T13:58:39Z",
            "content": "{\"cpv\": \"34946110\", \"url\": \"https://ezakupy.pkpcargo.com/open-preview-auction.html/105059/licytacja-elektroniczna-na-remont-torow-i-rozjazdow-w-sekcji-w-tczewie\", \"buyer\": \"PKP CARGOTABOR SP. Z O.O. W RESTRUKTURYZACJI\", \"title\": \"Licytacja elektroniczna na remont torów i rozjazdów w Sekcji w Tczewie.\", \"region\": \"kujawsko-pomorskie\", \"source\": \"pkpcargo_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"KUJAWSKO-POMORSKIE\", \"source_id\": \"105059\", \"deadline_at\": \"2026-10-30T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-15T11:00:00Z\", \"procedure_url\": \"https://ezakupy.pkpcargo.com/open-preview-auction.html/105059/licytacja-elektroniczna-na-remont-torow-i-rozjazdow-w-sekcji-w-tczewie\"}",
            "content_hash": "a90eb4ed01f2711f6bc9ed3617dff2af195af3b98d26ba4eaa583095cbd2ecc7",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "253b0c5bcb260dd8d266512cf4ab85c5c84548ee7fc2bb9c6fb4b1ec2cca6f21",
            "actor": null,
            "seal": {
                "id": 1,
                "digest": "25686b149cfd327de10f8db2827c82e22b0d6a884d716cd11b36328364d6937d",
                "file": "https://tenderiq.pl/rejestr/pieczec-1.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-1.txt.ots",
                "bitcoin_block": 972985
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-26T23:35:15Z",
            "content": "{\"cpv\": \"34946110\", \"url\": \"https://ezakupy.pkpcargo.com/open-preview-auction.html/105059/licytacja-elektroniczna-na-remont-torow-i-rozjazdow-w-sekcji-w-tczewie\", \"buyer\": \"PKP CARGOTABOR SP. Z O.O. W RESTRUKTURYZACJI\", \"title\": \"Licytacja elektroniczna na remont torów i rozjazdów w Sekcji w Tczewie.\", \"region\": \"kujawsko-pomorskie\", \"source\": \"pkpcargo_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"KUJAWSKO-POMORSKIE\", \"source_id\": \"105059\", \"deadline_at\": \"2026-10-30T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-15T11:00:00Z\"}",
            "content_hash": "4899c356a6735408a647e6433bf0d57e422c3088f3d09b0b856839dfcbe89681",
            "prev_hash": "253b0c5bcb260dd8d266512cf4ab85c5c84548ee7fc2bb9c6fb4b1ec2cca6f21",
            "hash": "55bf2ab224ca152b8aebddd60ed6fc0be5542662c949b464db1b5af04ce11255",
            "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
            }
        }
    ]
}