{
    "tender_id": 3437751,
    "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": "2026-10-26T20:10:22Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1397811\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Dostawa zestawów kołowych BLICKLE (218/10)\", \"region\": \"dolnoslaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1397811\", \"deadline_at\": \"2026-10-30T06:45:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T08:10:00Z\", \"notice_number\": \"1397811\"}",
            "content_hash": "3cbdf483d929836d696f2b4b21f8b12ade6cddef08b72bc8cc37537bcc64f265",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "31a16b1dee0854ea37314315f081511e4ba7b39cee78a0791d92abd7a4c0aab3",
            "actor": null,
            "seal": {
                "id": 3,
                "digest": "1119fd2ade60dc88ac794742ff488b9486e8a488f9d77cc6d6a9444474dc1c77",
                "file": "https://tenderiq.pl/rejestr/pieczec-3.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-3.txt.ots",
                "bitcoin_block": 973309
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-26T23:35:12Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1397811\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Dostawa zestawów kołowych BLICKLE (218/10)\", \"region\": \"dolnoslaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1397811\", \"deadline_at\": \"2026-10-30T06:45:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T08:10:00Z\", \"notice_number\": \"1397811\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3853305/dostawa-zestawow-kolowych-blickle-218-10-\"}",
            "content_hash": "c3f02ec01a5bb254c33f94baa25081507cb2685e7f99d1e0a1363c252490f5ae",
            "prev_hash": "31a16b1dee0854ea37314315f081511e4ba7b39cee78a0791d92abd7a4c0aab3",
            "hash": "396e443252c807cca546d61b923f4b1a88ee16e3204b9809805faaafd42027ea",
            "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": 3,
            "recorded_at": "2026-10-28T22:45:39Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1397811\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Dostawa zestawów kołowych BLICKLE (218/10)\", \"region\": \"dolnoslaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1397811\", \"deadline_at\": \"2026-10-30T06:45:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T08:10:00Z\", \"notice_number\": \"1397811\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1397811\"}",
            "content_hash": "cfe62dd42ab9b3658f2c98f060fe2e1a6b98997a147f46e412701cfcc544a2cd",
            "prev_hash": "396e443252c807cca546d61b923f4b1a88ee16e3204b9809805faaafd42027ea",
            "hash": "d2aec064b794c03ce009e4d3af278a4a0aedee1b77a683c69278da76fb720a50",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-10-29T05:45:52Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1397811\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Dostawa zestawów kołowych BLICKLE (218/10)\", \"region\": \"dolnoslaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1397811\", \"deadline_at\": \"2026-10-30T06:45:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T08:10:00Z\", \"notice_number\": \"1397811\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3853305/dostawa-zestawow-kolowych-blickle-218-10-\"}",
            "content_hash": "c3f02ec01a5bb254c33f94baa25081507cb2685e7f99d1e0a1363c252490f5ae",
            "prev_hash": "d2aec064b794c03ce009e4d3af278a4a0aedee1b77a683c69278da76fb720a50",
            "hash": "c3c029b16acee65b5f146d0776f0882fa239ee20da558b928a24094a46b925e9",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        }
    ]
}