{
    "tender_id": 3555081,
    "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": "2026-10-27T11:15:12Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/742684-2026\", \"buyer\": \"TAURON Ciepło sp. z o.o.\", \"title\": \"Polska – Pakiety oprogramowania i systemy informatyczne – „Dostawa i wdrożenie Systemu Zarządzania Pracą w Terenie” dla TAURON Ciepło sp. z o.o.\", \"region\": \"slaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL22A, POL, PL22A, POL\", \"buyer_nip\": \"9542732017\", \"source_id\": \"742684-2026\", \"deadline_at\": \"2026-12-07T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-27T01:00:00Z\"}",
            "content_hash": "d9565a4b410bc48e7ccf53396ddef191eeb1469fcaaa1f91a3ae8244f419b9a3",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "44a1e97f3958c9f55b7c7a74f7f34bc6723565c4d423138e257b6f00567473ff",
            "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": 2,
            "recorded_at": "2026-10-28T03:33:56Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/742684-2026\", \"buyer\": \"TAURON Ciepło sp. z o.o.\", \"title\": \"Polska – Pakiety oprogramowania i systemy informatyczne – „Dostawa i wdrożenie Systemu Zarządzania Pracą w Terenie” dla TAURON Ciepło sp. z o.o.\", \"region\": \"slaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL22A, POL, PL22A, POL\", \"buyer_nip\": \"9542732017\", \"source_id\": \"742684-2026\", \"deadline_at\": \"2026-12-07T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-27T01:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3753682/dostawa-i-wdrozenie-systemu-zarzadzania-praca-w-terenie-\"}",
            "content_hash": "f941320b71d545fdeeb5b1739413e5ecc1401cf2ffdfa19cea71b091c9c5f458",
            "prev_hash": "44a1e97f3958c9f55b7c7a74f7f34bc6723565c4d423138e257b6f00567473ff",
            "hash": "233607eb4bb08e19c72eb3c817f266bc3f16736a74c1ca774775b26786cbe145",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-28T22:45:40Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/742684-2026\", \"buyer\": \"TAURON Ciepło sp. z o.o.\", \"title\": \"Polska – Pakiety oprogramowania i systemy informatyczne – „Dostawa i wdrożenie Systemu Zarządzania Pracą w Terenie” dla TAURON Ciepło sp. z o.o.\", \"region\": \"slaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL22A, POL, PL22A, POL\", \"buyer_nip\": \"9542732017\", \"source_id\": \"742684-2026\", \"deadline_at\": \"2026-12-07T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-27T01:00:00Z\", \"procedure_url\": \"https://swoz.tauron.pl/platform/demand/notice/public/13069662/details\"}",
            "content_hash": "75408f8c4e5d0993f80ab3e5682c9d530862a5b4ae67bd458a2b8106def51757",
            "prev_hash": "233607eb4bb08e19c72eb3c817f266bc3f16736a74c1ca774775b26786cbe145",
            "hash": "8f68539be388a81da10466ce057ca58a0dae1366bc69667540b5fbc57837d831",
            "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": "2026-10-29T05:45:40Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/742684-2026\", \"buyer\": \"TAURON Ciepło sp. z o.o.\", \"title\": \"Polska – Pakiety oprogramowania i systemy informatyczne – „Dostawa i wdrożenie Systemu Zarządzania Pracą w Terenie” dla TAURON Ciepło sp. z o.o.\", \"region\": \"slaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL22A, POL, PL22A, POL\", \"buyer_nip\": \"9542732017\", \"source_id\": \"742684-2026\", \"deadline_at\": \"2026-12-07T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-27T01:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3753682/dostawa-i-wdrozenie-systemu-zarzadzania-praca-w-terenie-\"}",
            "content_hash": "f941320b71d545fdeeb5b1739413e5ecc1401cf2ffdfa19cea71b091c9c5f458",
            "prev_hash": "8f68539be388a81da10466ce057ca58a0dae1366bc69667540b5fbc57837d831",
            "hash": "cd51dd91df735d9269826506c033c5e3abb50f344c6c45a400654ebac9f4b3b9",
            "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": 5,
            "recorded_at": "2026-10-31T04:45:20Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/742684-2026\", \"buyer\": \"TAURON Ciepło sp. z o.o.\", \"title\": \"Polska – Pakiety oprogramowania i systemy informatyczne – „Dostawa i wdrożenie Systemu Zarządzania Pracą w Terenie” dla TAURON Ciepło sp. z o.o.\", \"region\": \"slaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL22A, POL, PL22A, POL\", \"buyer_nip\": \"9542732017\", \"source_id\": \"742684-2026\", \"deadline_at\": \"2026-12-07T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-27T01:00:00Z\", \"procedure_url\": \"https://swoz.tauron.pl/platform/demand/notice/public/13069662/details\"}",
            "content_hash": "75408f8c4e5d0993f80ab3e5682c9d530862a5b4ae67bd458a2b8106def51757",
            "prev_hash": "cd51dd91df735d9269826506c033c5e3abb50f344c6c45a400654ebac9f4b3b9",
            "hash": "df1e1affa7626548eaa557d88537420b8ff153d6205569a60051382d5c47e208",
            "actor": null,
            "seal": null
        },
        {
            "version": 6,
            "recorded_at": "2026-10-31T10:45:59Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/742684-2026\", \"buyer\": \"TAURON Ciepło sp. z o.o.\", \"title\": \"Polska – Pakiety oprogramowania i systemy informatyczne – „Dostawa i wdrożenie Systemu Zarządzania Pracą w Terenie” dla TAURON Ciepło sp. z o.o.\", \"region\": \"slaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL22A, POL, PL22A, POL\", \"buyer_nip\": \"9542732017\", \"source_id\": \"742684-2026\", \"deadline_at\": \"2026-12-07T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-27T01:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3753682/dostawa-i-wdrozenie-systemu-zarzadzania-praca-w-terenie-\"}",
            "content_hash": "f941320b71d545fdeeb5b1739413e5ecc1401cf2ffdfa19cea71b091c9c5f458",
            "prev_hash": "df1e1affa7626548eaa557d88537420b8ff153d6205569a60051382d5c47e208",
            "hash": "13593b178e2f6267149e6e0352b89f5520bf3a1307d543eda1c3342c20e674c1",
            "actor": null,
            "seal": null
        }
    ]
}