{
    "tender_id": 4016174,
    "check": {
        "ok": true,
        "versions": 7,
        "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": "2026-10-29T19:07:21Z",
            "content": "{\"cpv\": \"33100000\", \"url\": \"https://platformazakupowa.pl/transakcja/1400102\", \"buyer\": \"Szpital Powiatowy im. Alfreda Sokołowskiego w Złotowie\", \"title\": \"Fotel lekarski przybiurkowy.\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400102\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:15:00Z\", \"notice_number\": \"1400102\"}",
            "content_hash": "30aab6563accff327ed47a376ab4effef1dbb229007aa8321ed19e7d708ac15d",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "b0767c1e721985a82373375471257768bd68f648479b8f3e4f3388dffa261a94",
            "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": 2,
            "recorded_at": "2026-10-29T19:31:04Z",
            "content": "{\"cpv\": \"33100000\", \"url\": \"https://platformazakupowa.pl/transakcja/1400102\", \"buyer\": \"Szpital Powiatowy im. Alfreda Sokołowskiego w Złotowie\", \"title\": \"Fotel lekarski przybiurkowy.\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400102\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:15:00Z\", \"notice_number\": \"1400102\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860061/fotel-lekarski-przybiurkowy-\"}",
            "content_hash": "5435cf4ade6b95abc7caf0ce71400f10bc5af525f8bbc15a521229ffca70fb6c",
            "prev_hash": "b0767c1e721985a82373375471257768bd68f648479b8f3e4f3388dffa261a94",
            "hash": "b80216c8965a74210b4c61da539e3fd03c4684cc8ff1a6f940f4f85251b8d398",
            "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": 3,
            "recorded_at": "2026-10-31T04:45:51Z",
            "content": "{\"cpv\": \"33100000\", \"url\": \"https://platformazakupowa.pl/transakcja/1400102\", \"buyer\": \"Szpital Powiatowy im. Alfreda Sokołowskiego w Złotowie\", \"title\": \"Fotel lekarski przybiurkowy.\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400102\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:15:00Z\", \"notice_number\": \"1400102\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1400102\"}",
            "content_hash": "69872a5aee5fc69f9b30c594850888bca23803854a2a6a2343bd85186a0472ac",
            "prev_hash": "b80216c8965a74210b4c61da539e3fd03c4684cc8ff1a6f940f4f85251b8d398",
            "hash": "6592544b11463e6931a83d29be99852076ae9e4409a996d468f9a333a5d48d9c",
            "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": "2026-10-31T10:45:54Z",
            "content": "{\"cpv\": \"33100000\", \"url\": \"https://platformazakupowa.pl/transakcja/1400102\", \"buyer\": \"Szpital Powiatowy im. Alfreda Sokołowskiego w Złotowie\", \"title\": \"Fotel lekarski przybiurkowy.\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400102\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:15:00Z\", \"notice_number\": \"1400102\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860061/fotel-lekarski-przybiurkowy-\"}",
            "content_hash": "5435cf4ade6b95abc7caf0ce71400f10bc5af525f8bbc15a521229ffca70fb6c",
            "prev_hash": "6592544b11463e6931a83d29be99852076ae9e4409a996d468f9a333a5d48d9c",
            "hash": "a9ed69e163e2e8514d0b62e1e3a241c3447df7642d6a96d094be31206a5743ed",
            "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": "2026-10-31T17:45:31Z",
            "content": "{\"cpv\": \"33100000\", \"url\": \"https://platformazakupowa.pl/transakcja/1400102\", \"buyer\": \"Szpital Powiatowy im. Alfreda Sokołowskiego w Złotowie\", \"title\": \"Fotel lekarski przybiurkowy.\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400102\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:15:00Z\", \"notice_number\": \"1400102\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1400102\"}",
            "content_hash": "69872a5aee5fc69f9b30c594850888bca23803854a2a6a2343bd85186a0472ac",
            "prev_hash": "a9ed69e163e2e8514d0b62e1e3a241c3447df7642d6a96d094be31206a5743ed",
            "hash": "9b72ea6235e1470a1e72fbb8d1197fb7e0f57fc3adfbd72a8ac0e9a64f468f70",
            "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": 6,
            "recorded_at": "2026-11-01T00:45:51Z",
            "content": "{\"cpv\": \"33100000\", \"url\": \"https://platformazakupowa.pl/transakcja/1400102\", \"buyer\": \"Szpital Powiatowy im. Alfreda Sokołowskiego w Złotowie\", \"title\": \"Fotel lekarski przybiurkowy.\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400102\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:15:00Z\", \"notice_number\": \"1400102\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860061/fotel-lekarski-przybiurkowy-\"}",
            "content_hash": "5435cf4ade6b95abc7caf0ce71400f10bc5af525f8bbc15a521229ffca70fb6c",
            "prev_hash": "9b72ea6235e1470a1e72fbb8d1197fb7e0f57fc3adfbd72a8ac0e9a64f468f70",
            "hash": "cddd56b6af65e7a3f7832fd8bbb3cc205aed97919a777d256c308e672bd7f284",
            "actor": null,
            "seal": null
        },
        {
            "version": 7,
            "recorded_at": "2026-11-01T06:45:20Z",
            "content": "{\"cpv\": \"33100000\", \"url\": \"https://platformazakupowa.pl/transakcja/1400102\", \"buyer\": \"Szpital Powiatowy im. Alfreda Sokołowskiego w Złotowie\", \"title\": \"Fotel lekarski przybiurkowy.\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400102\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T07:15:00Z\", \"notice_number\": \"1400102\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1400102\"}",
            "content_hash": "69872a5aee5fc69f9b30c594850888bca23803854a2a6a2343bd85186a0472ac",
            "prev_hash": "cddd56b6af65e7a3f7832fd8bbb3cc205aed97919a777d256c308e672bd7f284",
            "hash": "2847c7e367330b4f8cf4125e76b2f8c9abfbc55037728c333238dfedd35fa4b2",
            "actor": null,
            "seal": null
        }
    ]
}