{
    "tender_id": 4016226,
    "check": {
        "ok": true,
        "versions": 9,
        "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": "2026-10-29T19:12:18Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://platformazakupowa.pl/transakcja/1400189\", \"buyer\": \"Miasto Poznań\", \"title\": \"Zakup toreb do laptopów i filtrów do monitorów\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400189\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T08:03:00Z\", \"notice_number\": \"1400189\"}",
            "content_hash": "fe2c311ec3068dbf308916ccfd11bb82487000ded4e50e3728dfd9d6e3fd9dfa",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "5fe3270e907d3fcb0e6bf91c87c601ee462e02f36f1c65c1be20dee65d6b5824",
            "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\": \"30213100\", \"url\": \"https://platformazakupowa.pl/transakcja/1400189\", \"buyer\": \"Miasto Poznań\", \"title\": \"Zakup toreb do laptopów i filtrów do monitorów\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400189\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T08:03:00Z\", \"notice_number\": \"1400189\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860251/zakup-toreb-do-laptopow-i-filtrow-do-monitorow\"}",
            "content_hash": "8c35226cb4e79e8abab26c66ffaa7839b168e623a96c79319ac743b74609dd4f",
            "prev_hash": "5fe3270e907d3fcb0e6bf91c87c601ee462e02f36f1c65c1be20dee65d6b5824",
            "hash": "1aba950b68968f17699413ba19786033cf2a4eee631c02de1a9f40e85c1002e6",
            "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\": \"30213100\", \"url\": \"https://platformazakupowa.pl/transakcja/1400189\", \"buyer\": \"Miasto Poznań\", \"title\": \"Zakup toreb do laptopów i filtrów do monitorów\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400189\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T08:03:00Z\", \"notice_number\": \"1400189\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1400189\"}",
            "content_hash": "774cf34974b89d93d15a632a29b9231627046c28349bb07a16f096c4269391a1",
            "prev_hash": "1aba950b68968f17699413ba19786033cf2a4eee631c02de1a9f40e85c1002e6",
            "hash": "846fa8bc423a5c9304c75ffa9a490472b4457a5fc5f5fa0529f1e98a161df0e5",
            "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\": \"30213100\", \"url\": \"https://platformazakupowa.pl/transakcja/1400189\", \"buyer\": \"Miasto Poznań\", \"title\": \"Zakup toreb do laptopów i filtrów do monitorów\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400189\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T08:03:00Z\", \"notice_number\": \"1400189\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860251/zakup-toreb-do-laptopow-i-filtrow-do-monitorow\"}",
            "content_hash": "8c35226cb4e79e8abab26c66ffaa7839b168e623a96c79319ac743b74609dd4f",
            "prev_hash": "846fa8bc423a5c9304c75ffa9a490472b4457a5fc5f5fa0529f1e98a161df0e5",
            "hash": "5e5064a289ee4148d144ea42b45ccfb1bf917cbdb336b67461936cbdffad8cbb",
            "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": "2026-10-31T17:45:30Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://platformazakupowa.pl/transakcja/1400189\", \"buyer\": \"Miasto Poznań\", \"title\": \"Zakup toreb do laptopów i filtrów do monitorów\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400189\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T08:03:00Z\", \"notice_number\": \"1400189\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1400189\"}",
            "content_hash": "774cf34974b89d93d15a632a29b9231627046c28349bb07a16f096c4269391a1",
            "prev_hash": "5e5064a289ee4148d144ea42b45ccfb1bf917cbdb336b67461936cbdffad8cbb",
            "hash": "ac6c7b641c3813f94a3756f5af4732984aab88dc4b9d61948153b7653e7b4633",
            "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": "2026-11-01T00:45:28Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://platformazakupowa.pl/transakcja/1400189\", \"buyer\": \"Miasto Poznań\", \"title\": \"Zakup toreb do laptopów i filtrów do monitorów\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400189\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T08:03:00Z\", \"notice_number\": \"1400189\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860251/zakup-toreb-do-laptopow-i-filtrow-do-monitorow\"}",
            "content_hash": "8c35226cb4e79e8abab26c66ffaa7839b168e623a96c79319ac743b74609dd4f",
            "prev_hash": "ac6c7b641c3813f94a3756f5af4732984aab88dc4b9d61948153b7653e7b4633",
            "hash": "5a43dda82b62ece1dc3dbc70c9ac02eaab55ab4d637e6df894485ef3cc671eaf",
            "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": "2026-11-01T06:45:38Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://platformazakupowa.pl/transakcja/1400189\", \"buyer\": \"Miasto Poznań\", \"title\": \"Zakup toreb do laptopów i filtrów do monitorów\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400189\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T08:03:00Z\", \"notice_number\": \"1400189\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1400189\"}",
            "content_hash": "774cf34974b89d93d15a632a29b9231627046c28349bb07a16f096c4269391a1",
            "prev_hash": "5a43dda82b62ece1dc3dbc70c9ac02eaab55ab4d637e6df894485ef3cc671eaf",
            "hash": "0a130bbc920f05d6a496970603c77cd85df0f7b30387618bd587631243535a73",
            "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": 8,
            "recorded_at": "2026-11-02T01:45:23Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://platformazakupowa.pl/transakcja/1400189\", \"buyer\": \"Miasto Poznań\", \"title\": \"Zakup toreb do laptopów i filtrów do monitorów\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400189\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T08:03:00Z\", \"notice_number\": \"1400189\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860251/zakup-toreb-do-laptopow-i-filtrow-do-monitorow\"}",
            "content_hash": "8c35226cb4e79e8abab26c66ffaa7839b168e623a96c79319ac743b74609dd4f",
            "prev_hash": "0a130bbc920f05d6a496970603c77cd85df0f7b30387618bd587631243535a73",
            "hash": "cce9d4d4e7798fb053f800e88f7ed9131704fae13cdecef8c000446d57764235",
            "actor": null,
            "seal": null
        },
        {
            "version": 9,
            "recorded_at": "2026-11-02T07:35:30Z",
            "content": "{\"cpv\": \"30213100\", \"url\": \"https://platformazakupowa.pl/transakcja/1400189\", \"buyer\": \"Miasto Poznań\", \"title\": \"Zakup toreb do laptopów i filtrów do monitorów\", \"region\": \"wielkopolskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400189\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T08:03:00Z\", \"notice_number\": \"1400189\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1400189\"}",
            "content_hash": "774cf34974b89d93d15a632a29b9231627046c28349bb07a16f096c4269391a1",
            "prev_hash": "cce9d4d4e7798fb053f800e88f7ed9131704fae13cdecef8c000446d57764235",
            "hash": "d2e1319a595d8cfafb6264ed6fc328d561bcf5728fa823b095a6e27f87d3538a",
            "actor": null,
            "seal": null
        }
    ]
}