{
    "tender_id": 4810784,
    "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": "2026-11-02T18:40:04Z",
            "content": "{\"cpv\": \"34350000\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,1c70d50b312fed76b9e43f735c18e630.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"STA/48581/2026 - Uszczelnienie gumowe 1010/850X50 SZCZELPLAST + USZCZELKA GUMOWA PŁASKAfi 350x10 SZCZELPLAST\", \"region\": \"mazowieckie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"mazowieckie\", \"source_id\": \"alchemia-1c70d50b312fed76b9e43f735c18e630\", \"deadline_at\": \"2026-11-04T06:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T07:48:00Z\"}",
            "content_hash": "312dd88b62c9d1c9fda035549aa021d104127859c16ccc2c76dfb9e004270822",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "ece86adb87e6cf8a8d10587f1d7da576765e3e6ef906cb7b97b47c822d64e92d",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-03T02:30:06Z",
            "content": "{\"cpv\": \"34350000\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,1c70d50b312fed76b9e43f735c18e630.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"STA/48581/2026 - Uszczelnienie gumowe 1010/850X50 SZCZELPLAST + USZCZELKA GUMOWA PŁASKAfi 350x10 SZCZELPLAST\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"alchemia-1c70d50b312fed76b9e43f735c18e630\", \"deadline_at\": \"2026-11-04T06:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T11:12:00Z\"}",
            "content_hash": "f5da8c1ab8de6ec31c5cdad8ce02f3531cc19a7cd8b9c662a27d1321ba206327",
            "prev_hash": "ece86adb87e6cf8a8d10587f1d7da576765e3e6ef906cb7b97b47c822d64e92d",
            "hash": "18c44e3966c3970bab061e8675c00571af67f35104147ba9572b702853f6c36c",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-03T02:45:36Z",
            "content": "{\"cpv\": \"34350000\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,1c70d50b312fed76b9e43f735c18e630.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"STA/48581/2026 - Uszczelnienie gumowe 1010/850X50 SZCZELPLAST + USZCZELKA GUMOWA PŁASKAfi 350x10 SZCZELPLAST\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"alchemia-1c70d50b312fed76b9e43f735c18e630\", \"deadline_at\": \"2026-11-04T06:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T11:12:00Z\", \"procedure_url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,1c70d50b312fed76b9e43f735c18e630.html\"}",
            "content_hash": "9d2abd56c425e52d8d845d3864018064967537cb64de2a7f6b223d344e0d427d",
            "prev_hash": "18c44e3966c3970bab061e8675c00571af67f35104147ba9572b702853f6c36c",
            "hash": "da5831b0d29f392941580be689676df6fed2362a1195ec516e8f81ab2048b45d",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-11-03T13:45:35Z",
            "content": "{\"cpv\": \"34350000\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,1c70d50b312fed76b9e43f735c18e630.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"STA/48581/2026 - Uszczelnienie gumowe 1010/850X50 SZCZELPLAST + USZCZELKA GUMOWA PŁASKAfi 350x10 SZCZELPLAST\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"alchemia-1c70d50b312fed76b9e43f735c18e630\", \"deadline_at\": \"2026-11-04T06:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T11:12:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3867264/sta-48581-2026-uszczelnienie-gumowe-1010-850x50-szczelplast-uszczelka-gumowa-p-askafi-350x10-szczelplast\"}",
            "content_hash": "9e8d104db61857533b476bee245a16be0032ea627b3a2a9c7a2139460c0e6ec1",
            "prev_hash": "da5831b0d29f392941580be689676df6fed2362a1195ec516e8f81ab2048b45d",
            "hash": "c0abf873379eef6c512050059af17535ab624eeaa90e95cd0839c9b29a751a03",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        },
        {
            "version": 5,
            "recorded_at": "2026-11-03T21:45:51Z",
            "content": "{\"cpv\": \"34350000\", \"url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,1c70d50b312fed76b9e43f735c18e630.html\", \"buyer\": \"Alchemia S.A. Oddział Chorzów Batory\", \"title\": \"STA/48581/2026 - Uszczelnienie gumowe 1010/850X50 SZCZELPLAST + USZCZELKA GUMOWA PŁASKAfi 350x10 SZCZELPLAST\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"alchemia-1c70d50b312fed76b9e43f735c18e630\", \"deadline_at\": \"2026-11-04T06:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T11:12:00Z\", \"procedure_url\": \"https://alchemia.logintrade.net/portal,szczegolyZapytaniaOfertowe,1c70d50b312fed76b9e43f735c18e630.html\"}",
            "content_hash": "9d2abd56c425e52d8d845d3864018064967537cb64de2a7f6b223d344e0d427d",
            "prev_hash": "c0abf873379eef6c512050059af17535ab624eeaa90e95cd0839c9b29a751a03",
            "hash": "8b90e538dbd9b766c8401e8f1442d476eaff9964c0dc499c45cdee4e16493b89",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        }
    ]
}