{
    "tender_id": 7084898,
    "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": "2026-11-13T14:13:30Z",
            "content": "{\"cpv\": \"31431000\", \"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/538127/zakup-akumulatorow-zelowych\", \"buyer\": \"KOMENDA WOJEWÓDZKA POLICJI W GORZOWIE WIELKOPOLSKIM\", \"title\": \"zakup akumulatorów żelowych\", \"region\": \"zachodniopomorskie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"538127\", \"deadline_at\": \"2026-11-20T07:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-13T09:00:00Z\"}",
            "content_hash": "b95a0102c0a4746b71e7404cee77ad47cc1f9094eb3e025f4cbcb03feaca6ce5",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "b736310f5d17d07d328db64b61f9944481394e735bf62559687ac3afb429b6ae",
            "actor": null,
            "seal": {
                "id": 21,
                "digest": "9f5cc628e20cec4e7a4adf4979e6b8d5416f11dcd193f37905493253afb6d07f",
                "file": "https://tenderiq.pl/rejestr/pieczec-21.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-21.txt.ots",
                "bitcoin_block": 975729
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-13T14:45:49Z",
            "content": "{\"cpv\": \"31431000\", \"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/538127/zakup-akumulatorow-zelowych\", \"buyer\": \"KOMENDA WOJEWÓDZKA POLICJI W GORZOWIE WIELKOPOLSKIM\", \"title\": \"zakup akumulatorów żelowych\", \"region\": \"zachodniopomorskie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"538127\", \"deadline_at\": \"2026-11-20T07:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-13T09:00:00Z\", \"procedure_url\": \"https://lubuska-policja.eb2b.com.pl/open-preview-auction.html/538127/zakup-akumulatorow-zelowych\"}",
            "content_hash": "a2ad395dddab5ab94e2666e9214c28422ee8294ccb080198536742cae9a15ba1",
            "prev_hash": "b736310f5d17d07d328db64b61f9944481394e735bf62559687ac3afb429b6ae",
            "hash": "534bc549a9bbe522ba1f038f105d7d9499c74ed8225d1c45cec82c74dd14ac13",
            "actor": null,
            "seal": {
                "id": 21,
                "digest": "9f5cc628e20cec4e7a4adf4979e6b8d5416f11dcd193f37905493253afb6d07f",
                "file": "https://tenderiq.pl/rejestr/pieczec-21.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-21.txt.ots",
                "bitcoin_block": 975729
            }
        }
    ]
}