{
    "tender_id": 5592131,
    "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": "2026-11-06T08:36:31Z",
            "content": "{\"cpv\": \"72268000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3bda-981d-78ed-c1c5-d5000193d3b0\", \"buyer\": \"Centrum Informatycznych Usług Wspólnych Olsztyna\", \"title\": \"Subskrypcja Microsoft 365\", \"region\": \"warminsko-mazurskie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Olsztyn, warmińsko-mazurskie\", \"buyer_nip\": \"7393847026\", \"source_id\": \"2026/BZP 00526182/01\", \"deadline_at\": \"2026-11-16T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-06T07:50:15Z\", \"notice_number\": \"2026/BZP 00526182/01\"}",
            "content_hash": "f0b379fcb4014841ca12d97ddd1c2f0bcb353f2ebca16591f15a23e70a15300b",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "ec06b680aa01fbb7b48d8519faa3f9ae92f0099a57f7af9ac6269079c8a1d2ab",
            "actor": null,
            "seal": {
                "id": 14,
                "digest": "40311773b0ad96735478ea3fd2d0f50746aa4156eaa6f667f3f02f9a13460e6d",
                "file": "https://tenderiq.pl/rejestr/pieczec-14.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-14.txt.ots",
                "bitcoin_block": 974874
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-06T14:45:36Z",
            "content": "{\"cpv\": \"72268000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3bda-981d-78ed-c1c5-d5000193d3b0\", \"buyer\": \"Centrum Informatycznych Usług Wspólnych Olsztyna\", \"title\": \"Subskrypcja Microsoft 365\", \"region\": \"warminsko-mazurskie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Olsztyn, warmińsko-mazurskie\", \"buyer_nip\": \"7393847026\", \"source_id\": \"2026/BZP 00526182/01\", \"deadline_at\": \"2026-11-16T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-06T07:50:15Z\", \"notice_number\": \"2026/BZP 00526182/01\", \"procedure_url\": \"https://zamowienia.olsztyn.eu/#/offer/903718fd-ca1b-4f6f-bc75-e33695b3c281\"}",
            "content_hash": "7e43559c1faa2d33165a21880efbd4a8f7e2db76a95ad570c0ffcf9be678daba",
            "prev_hash": "ec06b680aa01fbb7b48d8519faa3f9ae92f0099a57f7af9ac6269079c8a1d2ab",
            "hash": "eecbc6d602e5c5eb6df69f0081abc0b021b6d47bb9e829e5c646481d0c4e5e3a",
            "actor": null,
            "seal": {
                "id": 14,
                "digest": "40311773b0ad96735478ea3fd2d0f50746aa4156eaa6f667f3f02f9a13460e6d",
                "file": "https://tenderiq.pl/rejestr/pieczec-14.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-14.txt.ots",
                "bitcoin_block": 974874
            }
        }
    ]
}