{
    "tender_id": 5206569,
    "check": {
        "ok": true,
        "versions": 3,
        "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": "2026-11-04T14:49:29Z",
            "content": "{\"cpv\": \"79710000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3a77-81ca-a804-e2d6-6b000120ef3a\", \"buyer\": \"Akademia Piotrkowska\", \"title\": \"Usługa ochrony osób i mienia w Budynkach A i B Akademii Piotrkowskiej\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Piotrków Trybunalski, łódzkie\", \"buyer_nip\": \"7712925577\", \"source_id\": \"2026/BZP 00522756/01\", \"deadline_at\": \"2026-11-13T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T13:28:26Z\", \"notice_number\": \"2026/BZP 00522756/01\"}",
            "content_hash": "e0ce7d540a38333447bc745232b04ba0d4f6c4d89c1ef1166ff096e5d7341123",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "c8efaf751078f2a094190417d08874520449ec1026c68e7fce1ab0b1a980452d",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-04T15:33:34Z",
            "content": "{\"cpv\": \"79710000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3a77-81ca-a804-e2d6-6b000120ef3a\", \"buyer\": \"Akademia Piotrkowska\", \"title\": \"Usługa ochrony osób i mienia w Budynkach A i B Akademii Piotrkowskiej\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Piotrków Trybunalski, łódzkie\", \"buyer_nip\": \"7712925577\", \"source_id\": \"2026/BZP 00522756/01\", \"deadline_at\": \"2026-11-13T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T13:28:26Z\", \"notice_number\": \"2026/BZP 00522756/01\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1389935\"}",
            "content_hash": "bfd612a29a9f4e775c3b90acb11f69647bebc00d6671af501d9ff5ee93c2f817",
            "prev_hash": "c8efaf751078f2a094190417d08874520449ec1026c68e7fce1ab0b1a980452d",
            "hash": "c82c91011d1a66a43319ea00cd49621c70ab1a559ab2ee1e83a20429ba93c2d9",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-05T11:35:01Z",
            "content": "{\"cpv\": \"79710000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3a77-81ca-a804-e2d6-6b000120ef3a\", \"buyer\": \"Akademia Piotrkowska\", \"title\": \"Usługa ochrony osób i mienia w Budynkach A i B Akademii Piotrkowskiej\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Piotrków Trybunalski, łódzkie\", \"buyer_nip\": \"7712925577\", \"source_id\": \"2026/BZP 00522756/01\", \"deadline_at\": \"2026-11-13T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T13:28:26Z\", \"notice_number\": \"2026/BZP 00522756/01\", \"procedure_url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3a77-81ca-a804-e2d6-6b000120ef3a\"}",
            "content_hash": "937655c2791edff6dace472324ac96345a5e3bfbe65f38c77da7adae9f0c2c9f",
            "prev_hash": "c82c91011d1a66a43319ea00cd49621c70ab1a559ab2ee1e83a20429ba93c2d9",
            "hash": "6a2a4cb27a4308a023ae1dc1fc915801de63afe855fbae3417c78d92e2ed0533",
            "actor": null,
            "seal": null
        }
    ]
}