{
    "tender_id": 3650936,
    "check": {
        "ok": true,
        "versions": 4,
        "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": "2026-10-27T20:54:36Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1398698\", \"buyer\": \"Komenda Wojewódzka Policji w Poznaniu\", \"title\": \"podnóżki\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1398698\", \"deadline_at\": \"2026-10-30T14:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T08:30:00Z\", \"notice_number\": \"1398698\"}",
            "content_hash": "2cd89e64aea482ea56d41b6861ffdfa92acb863c60a739bd3308cd204c95cc9a",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "798cc34c363a4cae8275724e78fa7e9a8e14d7fc6f09c86fafddad98b8ee0bac",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-27T23:32:47Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1398698\", \"buyer\": \"Komenda Wojewódzka Policji w Poznaniu\", \"title\": \"podnóżki\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1398698\", \"deadline_at\": \"2026-10-30T14:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T08:30:00Z\", \"notice_number\": \"1398698\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855584/podnozki\"}",
            "content_hash": "d784931d0d20f97411a4e4c52237719dba6035e165ce085263a46a4d87f37ce2",
            "prev_hash": "798cc34c363a4cae8275724e78fa7e9a8e14d7fc6f09c86fafddad98b8ee0bac",
            "hash": "c321b0bdb75ed7aa7ca09287d68c3a391e175ec49c2b9eed5545ee5603353970",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-28T22:45:54Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1398698\", \"buyer\": \"Komenda Wojewódzka Policji w Poznaniu\", \"title\": \"podnóżki\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1398698\", \"deadline_at\": \"2026-10-30T14:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T08:30:00Z\", \"notice_number\": \"1398698\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1398698\"}",
            "content_hash": "c0d273978a6a5a707c8647752f51a4eba6d97c80ff3366570b4c3362c6d54399",
            "prev_hash": "c321b0bdb75ed7aa7ca09287d68c3a391e175ec49c2b9eed5545ee5603353970",
            "hash": "02e1cd789a81c3577dcdd8e18c68c6e18a505cea49d85857fcd3fb0fc8a7b6b2",
            "actor": null,
            "seal": null
        },
        {
            "version": 4,
            "recorded_at": "2026-10-29T05:45:36Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1398698\", \"buyer\": \"Komenda Wojewódzka Policji w Poznaniu\", \"title\": \"podnóżki\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1398698\", \"deadline_at\": \"2026-10-30T14:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T08:30:00Z\", \"notice_number\": \"1398698\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855584/podnozki\"}",
            "content_hash": "d784931d0d20f97411a4e4c52237719dba6035e165ce085263a46a4d87f37ce2",
            "prev_hash": "02e1cd789a81c3577dcdd8e18c68c6e18a505cea49d85857fcd3fb0fc8a7b6b2",
            "hash": "3f2a4239e072d4df505aa794089b8c8db46bca05382be7b1cc23bd6fd2b1c5ec",
            "actor": null,
            "seal": null
        }
    ]
}