{
    "tender_id": 3368129,
    "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": "2026-10-26T09:55:18Z",
            "content": "{\"cpv\": \"79340000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/739127-2026\", \"buyer\": \"Ettevõtluse ja Innovatsiooni Sihtasutus\", \"title\": \"Estonia – Usługi reklamowe i marketingowe – Turundus- ja meediateenus majanduse ja ettevõtluse arendamiseks\", \"source\": \"ted_est\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"EE009, EE00A, EE004, EE008, EE001, EST, EST, EST, EST, EST, EE009, EE00A, EE004, EE008, EE001, EST, EST, EST, EST, EST\", \"source_id\": \"739127-2026\", \"deadline_at\": \"2026-11-26T08:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "f5c0d6b927db9ea19739726d79d5a5eae8b5cccc8de61c820532a15d8cf135e9",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "632f8d75a4dc877bc30fcd02ec6c69b20eb7e0cb41e1ab78179c46aea5f2c9ab",
            "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": "2026-10-26T23:17:48Z",
            "content": "{\"cpv\": \"79340000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/739127-2026\", \"buyer\": \"Ettevõtluse ja Innovatsiooni Sihtasutus\", \"title\": \"Estonia – Usługi reklamowe i marketingowe – Usługi marketingowe i mediacyjne w celu rozwoju gospodarczego i przedsiębiorczości\", \"source\": \"ted_est\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"EE009, EE00A, EE004, EE008, EE001, EST, EST, EST, EST, EST, EE009, EE00A, EE004, EE008, EE001, EST, EST, EST, EST, EST\", \"source_id\": \"739127-2026\", \"deadline_at\": \"2026-11-26T08:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "8469e4f493fb0d6532635f626dc9240e215e2d37d77518c06096edcdb72e776d",
            "prev_hash": "632f8d75a4dc877bc30fcd02ec6c69b20eb7e0cb41e1ab78179c46aea5f2c9ab",
            "hash": "b161430ad4f69c94224c96cbedbb2033dfb59708a35618b407dcfd2fb949277a",
            "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
            }
        }
    ]
}