{
    "tender_id": 4264841,
    "check": {
        "ok": true,
        "versions": 11,
        "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": "2026-10-31T01:46:14Z",
            "content": "{\"cpv\": \"90910000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\", \"buyer\": \"Centrum Usług Społecznych w Trzciance\", \"title\": \"Usługa sprzątająca\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Trzcianka, wielkopolskie\", \"source_id\": \"296624\", \"deadline_at\": \"2026-11-09T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T00:00:00Z\"}",
            "content_hash": "ea43af2bafb6910d5dac7d7c9ec329c2481199652b46bde7ae88a6b595a32ee8",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "3883126bf364fff1ac79ff78fe9bc7b6a49cda451802eb2e0b1c5530784e6e01",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-31T10:46:11Z",
            "content": "{\"cpv\": \"90910000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\", \"buyer\": \"Centrum Usług Społecznych w Trzciance\", \"title\": \"Usługa sprzątająca\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Trzcianka, wielkopolskie\", \"source_id\": \"296624\", \"deadline_at\": \"2026-11-09T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\"}",
            "content_hash": "1863a0d85a39a3f6d527f55ee5ea25219f8d117cefc6d983a183f0a7eed21fbe",
            "prev_hash": "3883126bf364fff1ac79ff78fe9bc7b6a49cda451802eb2e0b1c5530784e6e01",
            "hash": "0cd9c7500ae82ee8ea1a6b8319ba6ac8c423dc837f2892b0d936259011762c20",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-31T11:33:51Z",
            "content": "{\"cpv\": \"90910000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\", \"buyer\": \"Centrum Usług Społecznych w Trzciance\", \"title\": \"Usługa sprzątająca\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Trzcianka, wielkopolskie\", \"source_id\": \"296624\", \"deadline_at\": \"2026-11-09T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864663/usluga-sprzatajaca\"}",
            "content_hash": "38b6b1299809c715f94417df3f1afb8354c2de9b756aee3ad2e25d4f393dcd91",
            "prev_hash": "0cd9c7500ae82ee8ea1a6b8319ba6ac8c423dc837f2892b0d936259011762c20",
            "hash": "b961b7fb0a9e915f3b0b96c4705e389e4de684311c3cbf14f943d8ec645d7600",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-10-31T17:45:48Z",
            "content": "{\"cpv\": \"90910000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\", \"buyer\": \"Centrum Usług Społecznych w Trzciance\", \"title\": \"Usługa sprzątająca\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Trzcianka, wielkopolskie\", \"source_id\": \"296624\", \"deadline_at\": \"2026-11-09T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\"}",
            "content_hash": "1863a0d85a39a3f6d527f55ee5ea25219f8d117cefc6d983a183f0a7eed21fbe",
            "prev_hash": "b961b7fb0a9e915f3b0b96c4705e389e4de684311c3cbf14f943d8ec645d7600",
            "hash": "0870e4d4e6b20781d29619a281b03ca34170bc7de8588be59f6165bb70b184b5",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        },
        {
            "version": 5,
            "recorded_at": "2026-11-01T00:45:24Z",
            "content": "{\"cpv\": \"90910000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\", \"buyer\": \"Centrum Usług Społecznych w Trzciance\", \"title\": \"Usługa sprzątająca\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Trzcianka, wielkopolskie\", \"source_id\": \"296624\", \"deadline_at\": \"2026-11-09T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864663/usluga-sprzatajaca\"}",
            "content_hash": "38b6b1299809c715f94417df3f1afb8354c2de9b756aee3ad2e25d4f393dcd91",
            "prev_hash": "0870e4d4e6b20781d29619a281b03ca34170bc7de8588be59f6165bb70b184b5",
            "hash": "470e2198f99d087ea8619d16fe567e865caa5fd99b99bbcd350d11e1c37b6bbc",
            "actor": null,
            "seal": {
                "id": 9,
                "digest": "2dfeb1f26d6191d887699bed5d05f226d8baa25e2f81adcf1d5d9f3ce86c75c5",
                "file": "https://tenderiq.pl/rejestr/pieczec-9.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-9.txt.ots",
                "bitcoin_block": 974194
            }
        },
        {
            "version": 6,
            "recorded_at": "2026-11-01T06:45:22Z",
            "content": "{\"cpv\": \"90910000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\", \"buyer\": \"Centrum Usług Społecznych w Trzciance\", \"title\": \"Usługa sprzątająca\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Trzcianka, wielkopolskie\", \"source_id\": \"296624\", \"deadline_at\": \"2026-11-09T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\"}",
            "content_hash": "1863a0d85a39a3f6d527f55ee5ea25219f8d117cefc6d983a183f0a7eed21fbe",
            "prev_hash": "470e2198f99d087ea8619d16fe567e865caa5fd99b99bbcd350d11e1c37b6bbc",
            "hash": "797e14eba668fd1b5a738f63d6331de6d4ae253fb3ce38997fd8778eb51ec21f",
            "actor": null,
            "seal": {
                "id": 9,
                "digest": "2dfeb1f26d6191d887699bed5d05f226d8baa25e2f81adcf1d5d9f3ce86c75c5",
                "file": "https://tenderiq.pl/rejestr/pieczec-9.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-9.txt.ots",
                "bitcoin_block": 974194
            }
        },
        {
            "version": 7,
            "recorded_at": "2026-11-02T01:45:40Z",
            "content": "{\"cpv\": \"90910000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\", \"buyer\": \"Centrum Usług Społecznych w Trzciance\", \"title\": \"Usługa sprzątająca\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Trzcianka, wielkopolskie\", \"source_id\": \"296624\", \"deadline_at\": \"2026-11-09T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864663/usluga-sprzatajaca\"}",
            "content_hash": "38b6b1299809c715f94417df3f1afb8354c2de9b756aee3ad2e25d4f393dcd91",
            "prev_hash": "797e14eba668fd1b5a738f63d6331de6d4ae253fb3ce38997fd8778eb51ec21f",
            "hash": "f4313af7f0c80678fe22d411d018cc2e59ec06bfe73ac8cb31fd673395578b10",
            "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": 8,
            "recorded_at": "2026-11-02T07:36:08Z",
            "content": "{\"cpv\": \"90910000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\", \"buyer\": \"Centrum Usług Społecznych w Trzciance\", \"title\": \"Usługa sprzątająca\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Trzcianka, wielkopolskie\", \"source_id\": \"296624\", \"deadline_at\": \"2026-11-09T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\"}",
            "content_hash": "1863a0d85a39a3f6d527f55ee5ea25219f8d117cefc6d983a183f0a7eed21fbe",
            "prev_hash": "f4313af7f0c80678fe22d411d018cc2e59ec06bfe73ac8cb31fd673395578b10",
            "hash": "7589723b4c709d7ecd9f0d014d1398c36d05fbed81b094bea3cb67b823173e31",
            "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": 9,
            "recorded_at": "2026-11-02T13:46:11Z",
            "content": "{\"cpv\": \"90910000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\", \"buyer\": \"Centrum Usług Społecznych w Trzciance\", \"title\": \"Usługa sprzątająca\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Trzcianka, wielkopolskie\", \"source_id\": \"296624\", \"deadline_at\": \"2026-11-09T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864663/usluga-sprzatajaca\"}",
            "content_hash": "38b6b1299809c715f94417df3f1afb8354c2de9b756aee3ad2e25d4f393dcd91",
            "prev_hash": "7589723b4c709d7ecd9f0d014d1398c36d05fbed81b094bea3cb67b823173e31",
            "hash": "3c03a59deb8049e120bdfaaabb251e01a7c18b0633ddfadc6475fcfe883c08e7",
            "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": 10,
            "recorded_at": "2026-11-03T21:46:09Z",
            "content": "{\"cpv\": \"90910000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\", \"buyer\": \"Centrum Usług Społecznych w Trzciance\", \"title\": \"Usługa sprzątająca\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Trzcianka, wielkopolskie\", \"source_id\": \"296624\", \"deadline_at\": \"2026-11-09T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\"}",
            "content_hash": "1863a0d85a39a3f6d527f55ee5ea25219f8d117cefc6d983a183f0a7eed21fbe",
            "prev_hash": "3c03a59deb8049e120bdfaaabb251e01a7c18b0633ddfadc6475fcfe883c08e7",
            "hash": "30d64f8efa97d5d9035a2e6543587d4019aa08ccac123b48ee9bda3482423596",
            "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": 11,
            "recorded_at": "2026-11-04T10:45:59Z",
            "content": "{\"cpv\": \"90910000\", \"url\": \"https://bazakonkurencyjnosci.funduszeeuropejskie.gov.pl/ogloszenia/296624\", \"buyer\": \"Centrum Usług Społecznych w Trzciance\", \"title\": \"Usługa sprzątająca\", \"region\": \"wielkopolskie\", \"source\": \"baza_konkurencyjnosci\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Trzcianka, wielkopolskie\", \"source_id\": \"296624\", \"deadline_at\": \"2026-11-09T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864663/usluga-sprzatajaca\"}",
            "content_hash": "38b6b1299809c715f94417df3f1afb8354c2de9b756aee3ad2e25d4f393dcd91",
            "prev_hash": "30d64f8efa97d5d9035a2e6543587d4019aa08ccac123b48ee9bda3482423596",
            "hash": "c0b60ac70c116346021723c98373f82d3b386a9fc5614bad7e33a770e9dffdf9",
            "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
            }
        }
    ]
}