{
    "tender_id": 5385129,
    "check": {
        "ok": true,
        "versions": 1,
        "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": "2026-11-05T10:22:01Z",
            "content": "{\"cpv\": \"44440000\", \"url\": \"https://zakupy.grupapgz.pl/open-preview-auction.html/13787/zakup-lozysk-12\", \"buyer\": \"POLSKA GRUPA ZBROJENIOWA S.A.\", \"title\": \"Zakup łożysk\", \"source\": \"pgz_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"13787\", \"deadline_at\": \"2026-11-18T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-05T08:00:00Z\"}",
            "content_hash": "42f581c40da90067687c1a93e771648bed855b609e842281a3542ae2c66a983d",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "5499cd15e159899567cacd443107edd55d930d23148fd4a30208c93ec2a9fad2",
            "actor": null,
            "seal": {
                "id": 13,
                "digest": "88eaa47ed54f178cca07f94ec9f0c5d48c105c008cf249a9e53ac4ca63161903",
                "file": "https://tenderiq.pl/rejestr/pieczec-13.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-13.txt.ots",
                "bitcoin_block": 974729
            }
        }
    ]
}