{
    "tender_id": 5659007,
    "check": {
        "ok": true,
        "versions": 6,
        "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": "2026-11-06T17:42:00Z",
            "content": "{\"cpv\": \"31154000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/297156\", \"buyer\": \"Energy Solution EPC SP. z o.o.\", \"title\": \"BESS ZAGÓRZYCA – BATTERY ENERGY STORAGE SYSTEM\", \"region\": \"pomorskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [\"31440000\", \"31682000\", \"45232200\", \"45310000\", \"50532000\", \"50711000\", \"71320000\", \"71323100\"], \"location\": \"Zagórzyca, pomorskie\", \"source_id\": \"297156\", \"deadline_at\": \"2026-12-07T14:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-06T00:00:00Z\"}",
            "content_hash": "c88a2770e8124460f04e10b01dd99cc93bc27ba6d8ee9cd3a6a4daead7b028ff",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "dacc3709fd31381069b5776614a0391875ace6c49beb7a92bdb1240607136c8c",
            "actor": null,
            "seal": {
                "id": 14,
                "digest": "40311773b0ad96735478ea3fd2d0f50746aa4156eaa6f667f3f02f9a13460e6d",
                "file": "https://tenderiq.pl/rejestr/pieczec-14.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-14.txt.ots",
                "bitcoin_block": 974874
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-08T08:47:32Z",
            "content": "{\"cpv\": \"31154000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/297156\", \"buyer\": \"Energy Solution EPC SP. z o.o.\", \"title\": \"BESS ZAGÓRZYCA – BATTERY ENERGY STORAGE SYSTEM\", \"region\": \"pomorskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [\"31440000\", \"31682000\", \"45232200\", \"45310000\", \"50532000\", \"50711000\", \"71320000\", \"71323100\"], \"location\": \"Zagórzyca, pomorskie\", \"source_id\": \"297156\", \"deadline_at\": \"2026-12-07T14:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-06T00:00:00Z\", \"procedure_url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/297156\"}",
            "content_hash": "5e330af2ac90a29ed9ef8663866ad5d6053b608dbbf908b5745e5b5f604d3857",
            "prev_hash": "dacc3709fd31381069b5776614a0391875ace6c49beb7a92bdb1240607136c8c",
            "hash": "0c3a3f1f975f098a066f42184f42447a2cf3386a6272d6671e4999896cad94b8",
            "actor": null,
            "seal": {
                "id": 16,
                "digest": "72f8a05824ed8e52a6b46652732fcf18b4e959a25ba079607d2201da248317e1",
                "file": "https://tenderiq.pl/rejestr/pieczec-16.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-16.txt.ots",
                "bitcoin_block": 975121
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-08T16:46:00Z",
            "content": "{\"cpv\": \"31154000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/297156\", \"buyer\": \"Energy Solution EPC SP. z o.o.\", \"title\": \"BESS ZAGÓRZYCA – BATTERY ENERGY STORAGE SYSTEM\", \"region\": \"pomorskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [\"31440000\", \"31682000\", \"45232200\", \"45310000\", \"50532000\", \"50711000\", \"71320000\", \"71323100\"], \"location\": \"Zagórzyca, pomorskie\", \"source_id\": \"297156\", \"deadline_at\": \"2026-12-07T14:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-06T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3883221/bess-zagorzyca-battery-energy-storage-system\"}",
            "content_hash": "43b015fcaef6bba46ebde081b5b1dfc62c78cfc32df66d8cc746ccfb2dce26a5",
            "prev_hash": "0c3a3f1f975f098a066f42184f42447a2cf3386a6272d6671e4999896cad94b8",
            "hash": "9210dcbf36f75bfe92a98d4cc642b4cdd67d28e2fb2f88057e2d94356bde57b1",
            "actor": null,
            "seal": {
                "id": 16,
                "digest": "72f8a05824ed8e52a6b46652732fcf18b4e959a25ba079607d2201da248317e1",
                "file": "https://tenderiq.pl/rejestr/pieczec-16.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-16.txt.ots",
                "bitcoin_block": 975121
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-11-08T20:27:45Z",
            "content": "{\"cpv\": \"31154000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/297156\", \"buyer\": \"Energy Solution EPC SP. z o.o.\", \"title\": \"BESS ZAGÓRZYCA – BATTERY ENERGY STORAGE SYSTEM\", \"region\": \"pomorskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [\"31440000\", \"31682000\", \"45232200\", \"45310000\", \"50532000\", \"50711000\", \"71320000\", \"71323100\"], \"location\": \"Zagórzyca, pomorskie\", \"source_id\": \"297156\", \"deadline_at\": \"2026-12-07T14:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-08T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3883221/bess-zagorzyca-battery-energy-storage-system\"}",
            "content_hash": "6121733d0d4255ce276b57b668427e991aa26ea8d2d0096d9f7aa2150adf7a35",
            "prev_hash": "9210dcbf36f75bfe92a98d4cc642b4cdd67d28e2fb2f88057e2d94356bde57b1",
            "hash": "68372c5a1b4183a5a8938fa00ae5410c83af0420d3f05d26ea1e304aee1f8988",
            "actor": null,
            "seal": {
                "id": 16,
                "digest": "72f8a05824ed8e52a6b46652732fcf18b4e959a25ba079607d2201da248317e1",
                "file": "https://tenderiq.pl/rejestr/pieczec-16.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-16.txt.ots",
                "bitcoin_block": 975121
            }
        },
        {
            "version": 5,
            "recorded_at": "2026-11-08T23:38:18Z",
            "content": "{\"cpv\": \"31154000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/297156\", \"buyer\": \"Energy Solution EPC SP. z o.o.\", \"title\": \"BESS ZAGÓRZYCA – BATTERY ENERGY STORAGE SYSTEM\", \"region\": \"pomorskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [\"31440000\", \"31682000\", \"45232200\", \"45310000\", \"50532000\", \"50711000\", \"71320000\", \"71323100\"], \"location\": \"Zagórzyca, pomorskie\", \"source_id\": \"297156\", \"deadline_at\": \"2026-12-07T14:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-08T00:00:00Z\", \"procedure_url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/297156\"}",
            "content_hash": "bd06e3c661807d99c7aca15080f183cb1e113640ac287c86856c1377765a07b5",
            "prev_hash": "68372c5a1b4183a5a8938fa00ae5410c83af0420d3f05d26ea1e304aee1f8988",
            "hash": "78ba081e0fdb9df198f692ca65d05db543863f591d371e86695e38c6210d5728",
            "actor": null,
            "seal": null
        },
        {
            "version": 6,
            "recorded_at": "2026-11-09T12:46:14Z",
            "content": "{\"cpv\": \"31154000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/297156\", \"buyer\": \"Energy Solution EPC SP. z o.o.\", \"title\": \"BESS ZAGÓRZYCA – BATTERY ENERGY STORAGE SYSTEM\", \"region\": \"pomorskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [\"31440000\", \"31682000\", \"45232200\", \"45310000\", \"50532000\", \"50711000\", \"71320000\", \"71323100\"], \"location\": \"Zagórzyca, pomorskie\", \"source_id\": \"297156\", \"deadline_at\": \"2026-12-07T14:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-08T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3883221/bess-zagorzyca-battery-energy-storage-system\"}",
            "content_hash": "6121733d0d4255ce276b57b668427e991aa26ea8d2d0096d9f7aa2150adf7a35",
            "prev_hash": "78ba081e0fdb9df198f692ca65d05db543863f591d371e86695e38c6210d5728",
            "hash": "ef918ee59bafc78b01ef80df799bfc392cf19215819e1e3a5188e8b674200c55",
            "actor": null,
            "seal": null
        }
    ]
}