{
    "tender_id": 4115507,
    "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": "2026-10-30T09:14:07Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1401158\", \"buyer\": \"KWP Gdańsk\", \"title\": \"Dostawa zestawów oświetleniowych MILWAUKEE\", \"region\": \"pomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1401158\", \"deadline_at\": \"2026-11-06T08:12:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T08:20:00Z\", \"notice_number\": \"1401158\"}",
            "content_hash": "998cc951470892078dcf73a0105d9cd6f0e0e47390cda4eb149b6917be78f0a0",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "afcdb5a23fb8f36d4311836d04c7ff3e4039b9d9ed7c0f166ec583973770cbf2",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-30T13:45:40Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1401158\", \"buyer\": \"KWP Gdańsk\", \"title\": \"Dostawa zestawów oświetleniowych MILWAUKEE\", \"region\": \"pomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1401158\", \"deadline_at\": \"2026-11-06T08:12:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T08:20:00Z\", \"notice_number\": \"1401158\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1401158\"}",
            "content_hash": "50f3da22cead7a9e871cc045addfe1df5236bf66ccf85ef613d678bb72cc8790",
            "prev_hash": "afcdb5a23fb8f36d4311836d04c7ff3e4039b9d9ed7c0f166ec583973770cbf2",
            "hash": "6838a31044c6a53993805277f5a66649033341a0084638463ccbce1a751cb800",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        }
    ]
}