{
    "tender_id": 5048487,
    "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": "2026-11-03T20:48:48Z",
            "content": "{\"url\": \"https://pl-deheus.logintrade.net/portal,szczegolyZapytaniaOfertowe,54017f0fe5dab8eeb0044d77f9c2396f.html\", \"buyer\": \"De Heus Sp. z o. o.\", \"title\": \"Zakup detektora gazów wybuchowych Mastercool Intella Sens III\", \"region\": \"lodzkie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"łódzkie\", \"source_id\": \"pl-deheus-54017f0fe5dab8eeb0044d77f9c2396f\", \"deadline_at\": \"2026-11-06T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T09:07:00Z\"}",
            "content_hash": "d9ed2977ef82a697352df56726509656060521be1993ef6ebfa3a80e78d0eeed",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "45b7cf71aaef94de1cc1fe22ca4069605f5291f6ecfb899d296514216acdc68d",
            "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": 2,
            "recorded_at": "2026-11-04T00:38:10Z",
            "content": "{\"cpv\": \"38433000\", \"url\": \"https://pl-deheus.logintrade.net/portal,szczegolyZapytaniaOfertowe,54017f0fe5dab8eeb0044d77f9c2396f.html\", \"buyer\": \"De Heus Sp. z o. o\", \"title\": \"Zakup detektora gazów wybuchowych\", \"region\": \"lodzkie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"pl-deheus-54017f0fe5dab8eeb0044d77f9c2396f\", \"deadline_at\": \"2026-11-06T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T10:22:00Z\"}",
            "content_hash": "ce6c49a8d281bd080aa3176fea52b5cb86b84a8da0147b7773809608aacb92af",
            "prev_hash": "45b7cf71aaef94de1cc1fe22ca4069605f5291f6ecfb899d296514216acdc68d",
            "hash": "b2023cb78f29f9a46fd1e08c2ba8b0346e0ad1593a540fbfdb3f7e260d5f81c5",
            "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": "2026-11-04T10:46:33Z",
            "content": "{\"cpv\": \"38433000\", \"url\": \"https://pl-deheus.logintrade.net/portal,szczegolyZapytaniaOfertowe,54017f0fe5dab8eeb0044d77f9c2396f.html\", \"buyer\": \"De Heus Sp. z o. o\", \"title\": \"Zakup detektora gazów wybuchowych\", \"region\": \"lodzkie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"pl-deheus-54017f0fe5dab8eeb0044d77f9c2396f\", \"deadline_at\": \"2026-11-06T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T10:22:00Z\", \"procedure_url\": \"https://pl-deheus.logintrade.net/portal,szczegolyZapytaniaOfertowe,54017f0fe5dab8eeb0044d77f9c2396f.html\"}",
            "content_hash": "b50be31335bce110a8bbfecec719ad37cc39731df303fc9a7e0d23b4a5d1a3a6",
            "prev_hash": "b2023cb78f29f9a46fd1e08c2ba8b0346e0ad1593a540fbfdb3f7e260d5f81c5",
            "hash": "cbdb8cfa5b5e9aee3347b0a9be9d876942eeb34a42237fbf1aa5148ab0aeb8d1",
            "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": "2026-11-05T07:41:08Z",
            "content": "{\"cpv\": \"38433000\", \"url\": \"https://pl-deheus.logintrade.net/portal,szczegolyZapytaniaOfertowe,54017f0fe5dab8eeb0044d77f9c2396f.html\", \"buyer\": \"De Heus Sp. z o. o.\", \"title\": \"Zakup detektora gazów wybuchowych Mastercool Intella Sens III\", \"region\": \"lodzkie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"łódzkie\", \"source_id\": \"pl-deheus-54017f0fe5dab8eeb0044d77f9c2396f\", \"deadline_at\": \"2026-11-06T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T09:07:00Z\", \"procedure_url\": \"https://pl-deheus.logintrade.net/portal,szczegolyZapytaniaOfertowe,54017f0fe5dab8eeb0044d77f9c2396f.html\"}",
            "content_hash": "89738eb13833717eadcab082d879c320b67a3f4317d5b4bdc5d3a581367bee86",
            "prev_hash": "cbdb8cfa5b5e9aee3347b0a9be9d876942eeb34a42237fbf1aa5148ab0aeb8d1",
            "hash": "f353e002bfef774626b9769c5b796f93ffde7c66bcc3dad96ae332b696014c9f",
            "actor": null,
            "seal": null
        },
        {
            "version": 5,
            "recorded_at": "2026-11-05T10:24:06Z",
            "content": "{\"cpv\": \"38581000\", \"url\": \"https://pl-deheus.logintrade.net/portal,szczegolyZapytaniaOfertowe,54017f0fe5dab8eeb0044d77f9c2396f.html\", \"buyer\": \"De Heus Sp. z o. o.\", \"title\": \"Zakup detektora gazów wybuchowych Mastercool Intella Sens III\", \"region\": \"lodzkie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"łódzkie\", \"source_id\": \"pl-deheus-54017f0fe5dab8eeb0044d77f9c2396f\", \"deadline_at\": \"2026-11-06T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T09:07:00Z\", \"procedure_url\": \"https://pl-deheus.logintrade.net/portal,szczegolyZapytaniaOfertowe,54017f0fe5dab8eeb0044d77f9c2396f.html\"}",
            "content_hash": "15faf4d7a6cc351bbe127729782a9b9ea6e80b0e0902c0d7141255b3ff217ee8",
            "prev_hash": "f353e002bfef774626b9769c5b796f93ffde7c66bcc3dad96ae332b696014c9f",
            "hash": "1d0aeeef420f29dae402230e62af4afb5bc7c285c9b8676fd518a373f1976e7e",
            "actor": null,
            "seal": null
        }
    ]
}