{
    "tender_id": 3375159,
    "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": "2026-10-26T10:05:15Z",
            "content": "{\"cpv\": \"51110000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/737941-2026\", \"buyer\": \"Mairie de Drancy\", \"title\": \"Francja – Usługi instalowania sprzętu elektrycznego – Pose et dépose de matériel électrique festif\", \"source\": \"ted_fra\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"FR106, FRA, FR106, FRA\", \"source_id\": \"737941-2026\", \"deadline_at\": \"2026-11-25T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "ce10400daa23c18186a1d184e79e7e156d24205e73e8496ddea889bb99a463f4",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2d4384ff446621969df1d4d17505749c7408dd6b4e0de441dd890e2b35f211f9",
            "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": "2026-10-26T23:17:56Z",
            "content": "{\"cpv\": \"51110000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/737941-2026\", \"buyer\": \"Mairie de Drancy\", \"title\": \"Francja – Usługi instalowania sprzętu elektrycznego – Montaż i demontaż materiałów elektrycznych festowych\", \"source\": \"ted_fra\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"FR106, FRA, FR106, FRA\", \"source_id\": \"737941-2026\", \"deadline_at\": \"2026-11-25T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "28cae08c5c685bd92c9f4629c44c4b0e1d9930c34341cd03ea397ae604e1291b",
            "prev_hash": "2d4384ff446621969df1d4d17505749c7408dd6b4e0de441dd890e2b35f211f9",
            "hash": "3a2de63861f90ebfa89d8e708c771731f2d81a8ec2b86bd8334998bb7b8a9247",
            "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
            }
        }
    ]
}