{
    "tender_id": 5168228,
    "check": {
        "ok": true,
        "versions": 5,
        "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": "2026-11-04T09:34:30Z",
            "content": "{\"cpv\": \"31000000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3a50-4e15-1a56-e2d6-6b000120e5a8\", \"buyer\": \"Wojskowa Akademia Techniczna\", \"title\": \"DOSTAWA MATERIAŁÓW ELEKTRYCZNYCH\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [\"31211300\", \"32521000\", \"32520000\", \"32581100\", \"38330000\", \"44531510\"], \"location\": \"Warszawa, mazowieckie\", \"buyer_nip\": \"5270206300\", \"source_id\": \"2026/BZP 00520839/01\", \"deadline_at\": \"2026-11-13T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T08:47:49Z\", \"notice_number\": \"2026/BZP 00520839/01\"}",
            "content_hash": "faff9e4298068b22130734330f7e740c757aa0b8a3f7df21ee6ad8bed46b75e8",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "619d658d961e49188c32ca08c25809777786f5ec9de94f39c5c9d764e788d48a",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-04T10:45:56Z",
            "content": "{\"cpv\": \"31000000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3a50-4e15-1a56-e2d6-6b000120e5a8\", \"buyer\": \"Wojskowa Akademia Techniczna\", \"title\": \"DOSTAWA MATERIAŁÓW ELEKTRYCZNYCH\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [\"31211300\", \"32521000\", \"32520000\", \"32581100\", \"38330000\", \"44531510\"], \"location\": \"Warszawa, mazowieckie\", \"buyer_nip\": \"5270206300\", \"source_id\": \"2026/BZP 00520839/01\", \"deadline_at\": \"2026-11-13T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T08:47:49Z\", \"notice_number\": \"2026/BZP 00520839/01\", \"procedure_url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3a50-4e15-1a56-e2d6-6b000120e5a8\"}",
            "content_hash": "848302a95367979a212e72aa1ab6e9fd029580d7230e8117cb2ab5fc3fefb82b",
            "prev_hash": "619d658d961e49188c32ca08c25809777786f5ec9de94f39c5c9d764e788d48a",
            "hash": "ab2a7ac69fed662776ffffa09c45c7f462087c3c144d71efe6319b4842158ad7",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-04T16:45:46Z",
            "content": "{\"cpv\": \"31000000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3a50-4e15-1a56-e2d6-6b000120e5a8\", \"buyer\": \"Wojskowa Akademia Techniczna\", \"title\": \"DOSTAWA MATERIAŁÓW ELEKTRYCZNYCH\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [\"31211300\", \"32521000\", \"32520000\", \"32581100\", \"38330000\", \"44531510\"], \"location\": \"Warszawa, mazowieckie\", \"buyer_nip\": \"5270206300\", \"source_id\": \"2026/BZP 00520839/01\", \"deadline_at\": \"2026-11-13T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T08:47:49Z\", \"notice_number\": \"2026/BZP 00520839/01\", \"procedure_url\": \"https://wat.ezamawiajacy.pl/pn/wat/demand/notice/public/241956/details\"}",
            "content_hash": "5b39b434db0c3f65e339a312ba1beaf09941fee8dbf264d5e36b97caef4b30d7",
            "prev_hash": "ab2a7ac69fed662776ffffa09c45c7f462087c3c144d71efe6319b4842158ad7",
            "hash": "8572b61b5746760544feb9f4c221cf65fb6d18db92bacc3c2f1d2da8c6bdb158",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-11-04T22:45:20Z",
            "content": "{\"cpv\": \"31000000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3a50-4e15-1a56-e2d6-6b000120e5a8\", \"buyer\": \"Wojskowa Akademia Techniczna\", \"title\": \"DOSTAWA MATERIAŁÓW ELEKTRYCZNYCH\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [\"31211300\", \"32521000\", \"32520000\", \"32581100\", \"38330000\", \"44531510\"], \"location\": \"Warszawa, mazowieckie\", \"buyer_nip\": \"5270206300\", \"source_id\": \"2026/BZP 00520839/01\", \"deadline_at\": \"2026-11-13T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T08:47:49Z\", \"notice_number\": \"2026/BZP 00520839/01\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3872372/dostawa-materia-ow-elektrycznych\"}",
            "content_hash": "2a9ebd7d04faac2385f7a8188f094c79f1f3db5291b571825c0ba323fd0377a7",
            "prev_hash": "8572b61b5746760544feb9f4c221cf65fb6d18db92bacc3c2f1d2da8c6bdb158",
            "hash": "f5c28e7fad9479a70520c89f7ae61b049d74b96aed98fd2793ca85fe3087129d",
            "actor": null,
            "seal": null
        },
        {
            "version": 5,
            "recorded_at": "2026-11-05T11:35:01Z",
            "content": "{\"cpv\": \"31000000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3a50-4e15-1a56-e2d6-6b000120e5a8\", \"buyer\": \"Wojskowa Akademia Techniczna\", \"title\": \"DOSTAWA MATERIAŁÓW ELEKTRYCZNYCH\", \"region\": \"mazowieckie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [\"31211300\", \"32521000\", \"32520000\", \"32581100\", \"38330000\", \"44531510\"], \"location\": \"Warszawa, mazowieckie\", \"buyer_nip\": \"5270206300\", \"source_id\": \"2026/BZP 00520839/01\", \"deadline_at\": \"2026-11-13T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T08:47:49Z\", \"notice_number\": \"2026/BZP 00520839/01\", \"procedure_url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3a50-4e15-1a56-e2d6-6b000120e5a8\"}",
            "content_hash": "848302a95367979a212e72aa1ab6e9fd029580d7230e8117cb2ab5fc3fefb82b",
            "prev_hash": "f5c28e7fad9479a70520c89f7ae61b049d74b96aed98fd2793ca85fe3087129d",
            "hash": "b9a192dbfbc26142c8a4d5060e3fdadb26b57dab309845268f397206b550c45a",
            "actor": null,
            "seal": null
        }
    ]
}